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-3.0/ALL.prp test/programs/benchmarks/ldv-linux-3.0/usb_urb-drivers-video-arkfb.ko_true-unreach-call.cil.out.i.pp.i -------------------------------------------------------------------------------- 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) line 9352: Dead code detected: Goto: while_break (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label while_break is not reachable. (CFAFunctionBuilder.leave, INFO) line 9437: Dead code detected: Goto: while_break (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label while_break is not reachable. (CFAFunctionBuilder.leave, INFO) Inline assembler ignored, analysis is probably unsound! (CFABuilder.createCFA, WARNING) line 6770: Function pointer *(info->dac_write_regs) with type void (*)(void *, u8 *, int) is called, but no possible target functions were found. (CFunctionPointerResolver.replaceFunctionPointerCall, WARNING) line 5280: Function pointer *(pv_cpu_ops.io_delay) with type void (*)() is called, but no possible target functions were found. (CFunctionPointerResolver.replaceFunctionPointerCall, 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 __dynamic_pr_debug to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function __pci_register_driver 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 _dev_info to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function console_lock to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function mutex_lock_nested to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_set_power_state to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_restore_state to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_enable_device to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_set_master to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) line 5280: Ignoring function call through function pointer *(pv_cpu_ops.io_delay): (*(pv_cpu_ops.io_delay))(); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) Assuming external function svga_set_default_gfx_regs to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function svga_set_default_atc_regs to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function svga_set_default_seq_regs to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function svga_set_default_crt_regs to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function svga_wcrt_multi to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function svga_match_format to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) line 6770: Ignoring function call through function pointer *(info->dac_write_regs): (*(info->dac_write_regs))(info->data, code, 1); (PredicateCPA:ExpressionToFormulaVisitor.visit, WARNING) Ignoring cast from signed int to struct pm_message. (PredicateCPA:CtoFormulaConverter.makeCast, WARNING) Assuming external function fb_set_suspend to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_save_state to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_disable_device to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function pci_choose_state to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function mutex_unlock to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function console_unlock to be a constant function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function restore_vga to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Recursion detected, aborting. To ignore recursion, add -skipRecursion to the command line. (CallstackCPA:CallstackTransferRelation.getAbstractSuccessorsForEdge, INFO) Error: line 7204: Unsupported C feature (recursion): dac_set_mode(par->dac, 0); (CallstackTransferRelation.getAbstractSuccessorsForEdge, SEVERE) PredicateCPA statistics ----------------------- Number of abstractions: 1 (0% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 1 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 1 (100%) Times precision was {false}: 0 (0%) Times result was cached: 0 (0%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 0 (0%) Times result was 'false': 0 (0%) Number of strengthen sat checks: 0 Number of coverage checks: 106 BDD entailment checks: 0 Number of SMT sat checks: 0 trivial: 0 cached: 0 Max ABE block size: 11 Number of predicates discovered: 0 Number of path formula cache hits: 0 (0%) Time for post operator: 0.211s Time for path formula creation: 0.195s Actual computation: 0.183s Time for strengthen operator: 0.007s Time for prec operator: 0.017s Time for abstraction: 0.013s (Max: 0.013s, Count: 1) Solving time: 0.000s (Max: 0.000s) Model enumeration time: 0.000s Time for BDD construction: 0.000s (Max: 0.000s) Time for merge operator: 0.032s Time for coverage check: 0.000s Total time for SMT solver (w/o itp): 0.000s Number of BDD nodes: 202 Size of BDD node table: 10007 Size of BDD node cleanup queue: 0 (count: 2, 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: 0.070s Automaton transfers with branching: 0 Automaton transfer successors: 2784 (count: 2784, min: 1, max: 1, avg: 1,00) [1 x 2784] CPA algorithm statistics ------------------------ Number of iterations: 1514 Max size of waitlist: 36 Average size of waitlist: 23 Number of computed successors: 1599 Max successors for one state: 2 Number of times merged: 53 Number of times stopped: 53 Number of times breaked: 0 Total time for CPA algorithm: 0.605s (Max: 0.605s) Time for choose from waitlist: 0.013s Time for precision adjustment: 0.058s Time for transfer relation: 0.409s Time for merge operator: 0.039s Time for stop operator: 0.010s Time for adding to reached set: 0.027s Predicate-Abstraction Refiner statistics ---------------------------------------- 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: 0 Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 1228 Number of functions: 82 Number of loops: 11 Size of reached set: 1547 Number of reached locations: 358 (29%) Avg states per location: 4 Max states per location: 22 (at node N0) Number of reached functions: 34 (41%) Number of partitions: 1547 Avg size of partitions: 1 Max size of partitions: 1 Number of target states: 0 Size of final wait list 33 Time for analysis setup: 3.961s Time for loading CPAs: 1.245s Time for loading parser: 0.339s Time for CFA construction: 2.209s Time for parsing file(s): 0.633s Time for AST to CFA: 1.053s Time for CFA sanity check: 0.000s Time for post-processing: 0.352s Time for var class.: 0.000s Time for Analysis: 0.605s CPU time for analysis: 0.840s Total time for CPAchecker: 4.570s Total CPU time for CPAchecker: 5.740s Time for Garbage Collector: 0.000s (in 0 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 275MB ( 262 MiB) max; 191MB ( 182 MiB) avg; 286MB ( 272 MiB) peak Used non-heap memory: 21MB ( 20 MiB) max; 15MB ( 15 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: UNKNOWN, incomplete analysis. More details about the verification run can be found in the directory "./output".