scripts/cpa.sh -heap 3000M -noout -disable-java-assertions -predicateAnalysis-PredAbsRefiner-ABEl -setprop cpa.predicate.handlePointerAliasing=false -64 -timelimit 900s -stats -spec test/programs/benchmarks/ldv-linux-3.4-simple/ALL.prp test/programs/benchmarks/ldv-linux-3.4-simple/32_7_cilled_false-unreach-call_const_ok_linux-32_1-drivers--video--aty--atyfb.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.c -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 3000M. Using the following resource limits: CPU-time limit of 900s (ResourceLimitChecker.fromConfiguration, INFO) CPAchecker 1.4-svn (OpenJDK 64-Bit Server VM 1.7.0_65) started (CPAchecker.run, INFO) line 4493: Dead code detected: Goto: case_1 (CFACreationUtils.addEdgeToCFA, INFO) line 4498: Dead code detected: Goto: case_2 (CFACreationUtils.addEdgeToCFA, INFO) line 4503: Dead code detected: Goto: case_4 (CFACreationUtils.addEdgeToCFA, INFO) line 4512: Dead code detected: Goto: switch_default (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label case_2 is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label case_1 is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label switch_default is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label case_4 is not reachable. (CFAFunctionBuilder.leave, INFO) line 8372: Dead code detected: Goto: while_break (CFACreationUtils.addEdgeToCFA, INFO) line 8422: Dead code detected: Goto: while_break___0 (CFACreationUtils.addEdgeToCFA, INFO) line 8480: Dead code detected: Goto: while_break___1 (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label while_break is not reachable. (CFAFunctionBuilder.leave, INFO) line 13381: Dead code detected: Goto: case_1 (CFACreationUtils.addEdgeToCFA, INFO) line 13386: Dead code detected: Goto: case_2 (CFACreationUtils.addEdgeToCFA, INFO) line 13396: Dead code detected: Goto: case_8 (CFACreationUtils.addEdgeToCFA, INFO) line 13400: Dead code detected: Goto: switch_default (CFACreationUtils.addEdgeToCFA, INFO) line 13454: Dead code detected: Goto: switch_break (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label switch_break is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label case_2 is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label case_1 is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label switch_default is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label case_8 is not reachable. (CFAFunctionBuilder.leave, INFO) Inline assembler ignored, analysis is probably unsound! (CFABuilder.createCFA, WARNING) Handling of pointer aliasing is disabled, analysis is unsound if aliased pointers exist. (PredicateCPA:PathFormulaManagerImpl., WARNING) Using predicate analysis with SMTInterpol 2.1-174-ga199d47-comp and JFactory 1.21. (PredicateCPA:PredicateCPA., INFO) Using refinement for predicate analysis with PredicateAbstractionRefinementStrategy strategy. (PredicateCPA:PredicateCPARefiner., INFO) The following configuration options were specified but are not used: cpa.predicate.memoryAllocationsAlwaysSucceed cpa.predicate.maxPreFilledAllocationSize (CPAchecker.printConfigurationWarnings, WARNING) Starting analysis ... (CPAchecker.runAlgorithm, INFO) Program contains array, or pointer (multiple level of indirection), or field (enable handleFieldAccess and handleFieldAliasing) access; analysis is imprecise in case of aliasing. (PredicateCPA:CtoFormulaConverter.makeVariableUnsafe, WARNING) Assuming external function ldv_initialize to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function __pci_register_driver to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function dmi_check_system to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function register_reboot_notifier to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function _raw_spin_lock to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function __wake_up to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function _raw_spin_unlock to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function lock_fb_info to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) line 19522: Ignoring call via function pointer atyfb_reboot_notify::__cil_tmp20 for which no suitable target was found in line: (*__cil_tmp20)(__cil_tmp21, __cil_tmp25); (FunctionPointerCPA:FunctionPointerTransferRelation.getAbstractSuccessorsForEdge, WARNING) line 19522: Ignoring function call through function pointer *__cil_tmp20: (*__cil_tmp20)(__cil_tmp21, __cil_tmp25); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) Assuming external function cfb_copyarea to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function ___udelay to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function cfb_imageblit to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function cfb_fillrect to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function dev_get_drvdata to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function console_lock to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) line 13695: Ignoring call via function pointer aty_resume_chip::__cil_tmp22 for which no suitable target was found in line: (*__cil_tmp22)(__cil_tmp23, __cil_tmp26); (FunctionPointerCPA:FunctionPointerTransferRelation.getAbstractSuccessorsForEdge, WARNING) line 13695: Ignoring function call through function pointer *__cil_tmp22: (*__cil_tmp22)(__cil_tmp23, __cil_tmp26); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) line 11349: Ignoring call via function pointer atyfb_set_par::__cil_tmp28 for which no suitable target was found in line: err = (*__cil_tmp28)(__cil_tmp29, pixclock, __cil_tmp32, __cil_tmp35); (FunctionPointerCPA:FunctionPointerTransferRelation.getAbstractSuccessorsForEdge, WARNING) line 11349: Ignoring function call through function pointer *__cil_tmp28: err = (*__cil_tmp28)(__cil_tmp29, pixclock, __cil_tmp32, __cil_tmp35); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) line 11492: Ignoring call via function pointer atyfb_set_par::__cil_tmp74 for which no suitable target was found in line: (*__cil_tmp74)(__cil_tmp75, __cil_tmp79, __cil_tmp82, __cil_tmp85); (FunctionPointerCPA:FunctionPointerTransferRelation.getAbstractSuccessorsForEdge, WARNING) line 11492: Ignoring function call through function pointer *__cil_tmp74: (*__cil_tmp74)(__cil_tmp75, __cil_tmp79, __cil_tmp82, __cil_tmp85); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) line 11518: Ignoring call via function pointer atyfb_set_par::__cil_tmp92 for which no suitable target was found in line: (*__cil_tmp92)(__cil_tmp93, __cil_tmp97); (FunctionPointerCPA:FunctionPointerTransferRelation.getAbstractSuccessorsForEdge, WARNING) line 11518: Ignoring function call through function pointer *__cil_tmp92: (*__cil_tmp92)(__cil_tmp93, __cil_tmp97); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) Warning: Analysis stopped (The CPU-time limit of 900s has elapsed.) (ShutdownNotifier.shutdownIfNecessary, WARNING) PredicateCPA statistics ----------------------- Number of abstractions: 27577 (1% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 27577 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 1 (0%) Times precision was {false}: 0 (0%) Times result was cached: 26767 (97%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 809 (3%) Times result was 'false': 6 (0%) Number of strengthen sat checks: 13 Times result was 'false': 11 (85%) Number of coverage checks: 444524 BDD entailment checks: 14002 Number of SMT sat checks: 13 trivial: 0 cached: 1 Max ABE block size: 955 Number of predicates discovered: 4 Number of abstraction locations: 2 Max number of predicates per location: 3 Avg number of predicates per location: 3 Total predicates per abstraction: 2107 Max number of predicates per abstraction: 3 Avg number of predicates per abstraction: 2.60 Number of irrelevant predicates: 488 (23%) Number of preds handled by boolean abs: 1619 (77%) Total number of models for allsat: 803 Max number of models for allsat: 1 Avg number of models for allsat: 0.99 Number of path formula cache hits: 80265 (3%) Time for post operator: 47.737s Time for path formula creation: 46.914s Actual computation: 38.583s Time for strengthen operator: 1.626s Time for satisfiability checks: 0.483s Time for prec operator: 490.055s Time for abstraction: 489.651s (Max: 43.329s, Count: 27577) Boolean abstraction: 275.407s Solving time: 273.480s (Max: 40.692s) Model enumeration time: 1.734s Time for BDD construction: 0.022s (Max: 0.001s) Time for merge operator: 177.614s Time for coverage check: 0.137s Time for BDD entailment checks: 0.103s Total time for SMT solver (w/o itp): 275.697s Number of BDD nodes: 207 Size of BDD node table: 10007 Size of BDD node cleanup queue: 831 (count: 17257, min: 0, max: 83, avg: 0,05) Time for BDD node cleanup: 0.008s Time for BDD garbage collection: 0.000s (in 0 runs) PrecisionBootstrap statistics ----------------------------- Init. function predicates: 0 Init. global predicates: 0 Init. location predicates: 0 AutomatonAnalysis (SVCOMP) statistics ------------------------------------- Number of states: 1 Total time for successor computation: 25.214s Time for transition matches: 3.283s Time for transition assertions: 0.000s Time for transition actions: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 7420877 (count: 7420877, min: 1, max: 1, avg: 1,00) [1 x 7420877] CPA algorithm statistics ------------------------ Number of iterations: 2810926 Max size of waitlist: 3832 Average size of waitlist: 1630 Number of computed successors: 3042956 Max successors for one state: 2 Number of times merged: 215261 Number of times stopped: 229263 Number of times breaked: 2 Total time for CPA algorithm: 893.791s (Max: 885.533s) Time for choose from waitlist: 0.664s Time for precision adjustment: 521.928s Time for transfer relation: 168.026s Time for merge operator: 178.198s Time for stop operator: 2.495s Time for adding to reached set: 3.322s Predicate-Abstraction Refiner statistics ---------------------------------------- Avg. length of target path (in blocks): 6 (count: 2, min: 2, max: 4, avg: 3,00) Time for refinement: 2.724s Counterexample analysis: 2.625s (Max: 2.573s, Calls: 2) Refinement sat check: 0.237s Interpolant computation: 2.379s Error path post-processing: 0.000s Path-formulas extraction: 0.000s Building the counterexample trace: 2.625s Extracting precise counterexample: 0.000s Predicate creation: 0.001s Precision update: 0.001s ARG update: 0.089s Length of refined path (in blocks): 2 (count: 1, min: 2, max: 2, avg: 2,00) Number of affected states: 1 (count: 1, min: 1, max: 1, avg: 1,00) Length (states) of path with itp 'true': 0 (count: 1, min: 0, max: 0, avg: 0,00) Length (states) of path with itp non-trivial itp: 1 (count: 1, min: 1, max: 1, avg: 1,00) Length (states) of path with itp 'false': 1 (count: 1, min: 1, max: 1, avg: 1,00) Different non-trivial interpolants along paths: 0 (count: 1, min: 0, max: 0, avg: 0,00) Equal non-trivial interpolants along paths: 0 (count: 1, min: 0, max: 0, avg: 0,00) Different precisions along paths: 0 (count: 0, min: 0, max: 0, avg: 0,00) Equal precisions along paths: 0 (count: 0, min: 0, max: 0, avg: 0,00) Number of refs with location-based cutoff: 0 CEGAR algorithm statistics -------------------------- Number of refinements: 2 Number of successful refinements: 2 Number of failed refinements: 0 Max. size of reached set before ref.: 6171 Max. size of reached set after ref.: 25 Avg. size of reached set before ref.: 3165.50 Avg. size of reached set after ref.: 13.00 Total time for CEGAR algorithm: 896.522s Time for refinements: 2.731s Average time for refinement: 1.365s Max time for refinement: 2.667s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 4192 Number of functions: 140 Number of loops: 37 Size of reached set: 2807388 Size of final wait list 2722 Time for analysis setup: 9.189s Time for loading CPAs: 0.763s Time for loading parser: 0.640s Time for CFA construction: 7.736s Time for parsing file(s): 2.607s Time for AST to CFA: 2.311s Time for CFA sanity check: 0.000s Time for post-processing: 2.541s Time for var class.: 0.000s Time for Analysis: 896.522s CPU time for analysis: 896.520s Total time for CPAchecker: 905.712s Total CPU time for CPAchecker: 905.710s Time for Garbage Collector: 751.956s (in 103 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 2624MB ( 2503 MiB) max; 1299MB ( 1239 MiB) avg; 3280MB ( 3128 MiB) peak Used non-heap memory: 29MB ( 28 MiB) max; 25MB ( 24 MiB) avg; 29MB ( 28 MiB) peak Used in PS Old Gen pool: 2097MB ( 1999 MiB) max; 940MB ( 896 MiB) avg; 2097MB ( 1999 MiB) peak Allocated heap memory: 2889MB ( 2755 MiB) max; 1939MB ( 1849 MiB) avg Allocated non-heap memory: 54MB ( 51 MiB) max; 42MB ( 40 MiB) avg Total process virtual memory: 4899MB ( 4672 MiB) max; 4899MB ( 4672 MiB) avg Verification result: UNKNOWN, incomplete analysis. More details about the verification run can be found in the directory "./output".