scripts/cpa.sh -heap 50000M -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/43_1a_cilled_true-unreach-call_ok_nondet_linux-43_1a-drivers--gpio--gpio-wm831x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.c -------------------------------------------------------------------------------- Running CPAchecker with Java heap of size 50000M. 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) Dead code detected: Label switch_break is not reachable. (CFAFunctionBuilder.leave, INFO) line 1918: Dead code detected: __cil_tmp36 = reg & 2048; (CFACreationUtils.addEdgeToCFA, INFO) line 1920: Dead code detected: [!(__cil_tmp36 != 0)] (CFACreationUtils.addEdgeToCFA, INFO) line 1922: Dead code detected: powerdomain = "VPMIC"; (CFACreationUtils.addEdgeToCFA, INFO) line 1925: Dead code detected: powerdomain = "DBVDD"; (CFACreationUtils.addEdgeToCFA, INFO) line 1932: Dead code detected: __cil_tmp37 = reg & 2048; (CFACreationUtils.addEdgeToCFA, INFO) line 1934: Dead code detected: [!(__cil_tmp37 != 0)] (CFACreationUtils.addEdgeToCFA, INFO) line 1936: Dead code detected: powerdomain = "SYSVDD"; (CFACreationUtils.addEdgeToCFA, INFO) line 1939: Dead code detected: powerdomain = "DBVDD"; (CFACreationUtils.addEdgeToCFA, INFO) line 1945: Dead code detected: powerdomain = "TPVDD"; (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label switch_break is not reachable. (CFAFunctionBuilder.leave, INFO) Dead code detected: Label switch_break 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) Assuming external function ldv_initialize to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function platform_driver_register to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function dev_get_drvdata to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, 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 gpiochip_add to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function dev_set_drvdata to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function dev_err to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function ldv_check_return_value to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function platform_driver_unregister to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function gpiochip_is_requested to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function seq_printf to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function wm831x_reg_read to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function wm831x_set_bits to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function ldv_check_final_state to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Stopping analysis ... (CPAchecker.runAlgorithm, INFO) PredicateCPA statistics ----------------------- Number of abstractions: 6 (2% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 6 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 1 (17%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 5 (83%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 2 Times result was 'false': 1 (50%) Number of coverage checks: 69 BDD entailment checks: 3 Number of SMT sat checks: 2 trivial: 0 cached: 0 Max ABE block size: 42 Number of predicates discovered: 3 Number of abstraction locations: 0 Max number of predicates per location: 0 Avg number of predicates per location: 0 Total predicates per abstraction: 5 Max number of predicates per abstraction: 1 Avg number of predicates per abstraction: 1.00 Number of irrelevant predicates: 0 (0%) Number of preds handled by boolean abs: 5 (100%) Total number of models for allsat: 5 Max number of models for allsat: 1 Avg number of models for allsat: 1.00 Number of path formula cache hits: 68 (17%) Time for post operator: 0.101s Time for path formula creation: 0.097s Actual computation: 0.092s Time for strengthen operator: 0.048s Time for satisfiability checks: 0.043s Time for prec operator: 0.308s Time for abstraction: 0.306s (Max: 0.257s, Count: 6) Boolean abstraction: 0.116s Solving time: 0.095s (Max: 0.087s) Model enumeration time: 0.013s Time for BDD construction: 0.002s (Max: 0.002s) Time for merge operator: 0.109s Time for coverage check: 0.000s Time for BDD entailment checks: 0.000s Total time for SMT solver (w/o itp): 0.150s Number of BDD nodes: 202 Size of BDD node table: 10007 Size of BDD node cleanup queue: 0 (count: 30, min: 0, max: 0, avg: 0,00) Time for BDD node cleanup: 0.000s 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: 0.045s Automaton transfers with branching: 0 Automaton transfer successors: 1457 (count: 1457, min: 1, max: 1, avg: 1,00) [1 x 1457] CPA algorithm statistics ------------------------ Number of iterations: 342 Max size of waitlist: 15 Average size of waitlist: 8 Number of computed successors: 390 Max successors for one state: 2 Number of times merged: 33 Number of times stopped: 36 Number of times breaked: 1 Total time for CPA algorithm: 0.707s (Max: 0.580s) Time for choose from waitlist: 0.007s Time for precision adjustment: 0.328s Time for transfer relation: 0.235s Time for merge operator: 0.114s Time for stop operator: 0.007s Time for adding to reached set: 0.009s Predicate-Abstraction Refiner statistics ---------------------------------------- Avg. length of target path (in blocks): 2 (count: 1, min: 2, max: 2, avg: 2,00) Time for refinement: 0.022s Counterexample analysis: 0.015s (Max: 0.015s, Calls: 1) Refinement sat check: 0.012s Interpolant computation: 0.000s Error path post-processing: 0.000s Path-formulas extraction: 0.000s Building the counterexample trace: 0.015s Extracting precise counterexample: 0.000s Predicate creation: 0.000s Precision update: 0.000s ARG update: 0.000s Length of refined path (in blocks): 0 (count: 0, min: 0, max: 0, avg: 0,00) Number of affected states: 0 (count: 0, min: 0, max: 0, avg: 0,00) Length (states) of path with itp 'true': 0 (count: 0, min: 0, max: 0, avg: 0,00) Length (states) of path with itp non-trivial itp: 0 (count: 0, min: 0, max: 0, avg: 0,00) Length (states) of path with itp 'false': 0 (count: 0, min: 0, max: 0, avg: 0,00) Different non-trivial interpolants along paths: 0 (count: 0, min: 0, max: 0, avg: 0,00) Equal non-trivial interpolants along paths: 0 (count: 0, 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: 1 Number of successful refinements: 1 Number of failed refinements: 0 Max. size of reached set before ref.: 66 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 66.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 0.739s Time for refinements: 0.031s Average time for refinement: 0.031s Max time for refinement: 0.031s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 315 Number of functions: 24 Number of loops: 2 Size of reached set: 290 Number of reached locations: 258 (82%) Avg states per location: 1 Max states per location: 8 (at node N23) Number of reached functions: 16 (67%) Number of partitions: 290 Avg size of partitions: 1 Max size of partitions: 1 Number of target states: 0 Time for analysis setup: 2.039s Time for loading CPAs: 0.600s Time for loading parser: 0.345s Time for CFA construction: 1.002s Time for parsing file(s): 0.363s Time for AST to CFA: 0.384s Time for CFA sanity check: 0.000s Time for post-processing: 0.162s Time for var class.: 0.000s Time for Analysis: 0.741s CPU time for analysis: 1.000s Total time for CPAchecker: 2.782s Total CPU time for CPAchecker: 4.020s Time for Garbage Collector: 0.000s (in 0 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 211MB ( 202 MiB) max; 137MB ( 130 MiB) avg; 211MB ( 202 MiB) peak Used non-heap memory: 21MB ( 20 MiB) max; 15MB ( 14 MiB) avg; 21MB ( 20 MiB) peak Used in PS Old Gen pool: 0MB ( 0 MiB) max; 0MB ( 0 MiB) avg; 0MB ( 0 MiB) peak Allocated heap memory: 2024MB ( 1930 MiB) max; 2024MB ( 1930 MiB) avg Allocated non-heap memory: 24MB ( 23 MiB) max; 24MB ( 23 MiB) avg Total process virtual memory: 57054MB ( 54411 MiB) max; 57054MB ( 54411 MiB) avg Verification result: TRUE. No property violation found by chosen configuration. More details about the verification run can be found in the directory "./output".