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-media-video-msp3400.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 5036: Dead code detected: Goto: case_1 (CFACreationUtils.addEdgeToCFA, INFO) line 5041: Dead code detected: Goto: case_2 (CFACreationUtils.addEdgeToCFA, INFO) line 5046: Dead code detected: Goto: case_4 (CFACreationUtils.addEdgeToCFA, INFO) line 5054: 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 6360: Dead code detected: Goto: case_1 (CFACreationUtils.addEdgeToCFA, INFO) line 6365: Dead code detected: Goto: case_2 (CFACreationUtils.addEdgeToCFA, INFO) line 6370: Dead code detected: Goto: case_4 (CFACreationUtils.addEdgeToCFA, INFO) line 6378: 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 8667: Dead code detected: Goto: while_break (CFACreationUtils.addEdgeToCFA, INFO) Dead code detected: Label while_break is not reachable. (CFAFunctionBuilder.leave, INFO) line 8752: 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) 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 i2c_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 __wake_up to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function i2c_transfer to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_device_unregister_subdev to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function kthread_stop to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_handler_free to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function strlcpy to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_i2c_subdev_init to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function __init_waitqueue_head to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function msecs_to_jiffies to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function schedule_timeout_interruptible to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_handler_init to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_new_std to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_cluster to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_handler_setup to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function kthread_create_on_node to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function wake_up_process 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 i2c_master_send to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function mutex_lock_nested 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 snprintf to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function v4l2_ctrl_handler_log_status to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Assuming external function i2c_del_driver to be a pure function. (PredicateCPA:ExpressionToFormulaVisitor.visit, INFO) Stopping analysis ... (CPAchecker.runAlgorithm, INFO) PredicateCPA statistics ----------------------- Number of abstractions: 62839 (2% of all post computations) Times abstraction was reused: 0 Because of function entry/exit: 0 (0%) Because of loop head: 62839 (100%) Because of join nodes: 0 (0%) Because of threshold: 0 (0%) Times precision was empty: 31829 (51%) Times precision was {false}: 0 (0%) Times result was cached: 29310 (47%) Times cartesian abs was used: 0 (0%) Times boolean abs was used: 1700 (3%) Times result was 'false': 10 (0%) Number of strengthen sat checks: 11 Times result was 'false': 10 (91%) Number of coverage checks: 505243 BDD entailment checks: 34165 Number of SMT sat checks: 11 trivial: 0 cached: 2 Max ABE block size: 176 Number of predicates discovered: 4 Number of abstraction locations: 0 Max number of predicates per location: 0 Avg number of predicates per location: 0 Total predicates per abstraction: 6800 Max number of predicates per abstraction: 4 Avg number of predicates per abstraction: 4.00 Number of irrelevant predicates: 0 (0%) Number of preds handled by boolean abs: 6800 (100%) Total number of models for allsat: 1690 Max number of models for allsat: 1 Avg number of models for allsat: 0.99 Number of path formula cache hits: 3361607 (96%) Time for post operator: 11.913s Time for path formula creation: 5.914s Actual computation: 2.450s Time for strengthen operator: 3.419s Time for satisfiability checks: 0.141s Time for prec operator: 16.436s Time for abstraction: 13.538s (Max: 0.367s, Count: 62839) Boolean abstraction: 1.556s Solving time: 1.167s (Max: 0.017s) Model enumeration time: 0.149s Time for BDD construction: 0.054s (Max: 0.001s) Time for merge operator: 1.062s Time for coverage check: 0.614s Time for BDD entailment checks: 0.138s Total time for SMT solver (w/o itp): 1.457s Number of BDD nodes: 208 Size of BDD node table: 10007 Size of BDD node cleanup queue: 1343 (count: 72807, min: 0, max: 472, avg: 0,02) Time for BDD node cleanup: 0.057s 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: 21.816s Time for transition matches: 8.785s Time for transition assertions: 0.000s Time for transition actions: 0.000s Automaton transfers with branching: 0 Automaton transfer successors: 5000422 (count: 5000422, min: 1, max: 1, avg: 1,00) [1 x 5000422] CPA algorithm statistics ------------------------ Number of iterations: 2966280 Max size of waitlist: 5148 Average size of waitlist: 1798 Number of computed successors: 3235987 Max successors for one state: 2 Number of times merged: 235539 Number of times stopped: 269704 Number of times breaked: 1 Total time for CPA algorithm: 119.073s (Max: 61.225s) Time for choose from waitlist: 2.770s Time for precision adjustment: 23.388s Time for transfer relation: 64.552s Time for merge operator: 3.140s Time for stop operator: 4.239s Time for adding to reached set: 5.252s Predicate-Abstraction Refiner statistics ---------------------------------------- Avg. length of target path (in blocks): 3 (count: 1, min: 3, max: 3, avg: 3,00) Time for refinement: 3.055s Counterexample analysis: 0.107s (Max: 0.107s, Calls: 1) Refinement sat check: 0.095s Interpolant computation: 0.000s Error path post-processing: 0.000s Path-formulas extraction: 0.000s Building the counterexample trace: 0.107s 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.: 1501660 Max. size of reached set after ref.: 1 Avg. size of reached set before ref.: 1501660.00 Avg. size of reached set after ref.: 1.00 Total time for CEGAR algorithm: 122.160s Time for refinements: 3.071s Average time for refinement: 3.071s Max time for refinement: 3.071s Counterexample-Check Algorithm statistics ----------------------------------------- Number of counterexample checks: 0 CPAchecker general statistics ----------------------------- Number of program locations: 2453 Number of functions: 74 Number of loops: 11 Size of reached set: 1464625 Time for analysis setup: 3.922s Time for loading CPAs: 0.898s Time for loading parser: 0.348s Time for CFA construction: 2.523s Time for parsing file(s): 0.712s Time for AST to CFA: 1.088s Time for CFA sanity check: 0.001s Time for post-processing: 0.527s Time for var class.: 0.000s Time for Analysis: 122.535s CPU time for analysis: 184.130s Total time for CPAchecker: 126.461s Total CPU time for CPAchecker: 190.320s Time for Garbage Collector: 3.681s (in 14 runs) Garbage Collector(s) used: PS MarkSweep, PS Scavenge Used heap memory: 11131MB ( 10616 MiB) max; 3537MB ( 3373 MiB) avg; 12255MB ( 11687 MiB) peak Used non-heap memory: 28MB ( 26 MiB) max; 25MB ( 24 MiB) avg; 28MB ( 27 MiB) peak Used in PS Old Gen pool: 1038MB ( 990 MiB) max; 586MB ( 559 MiB) avg; 1200MB ( 1145 MiB) peak Allocated heap memory: 12701MB ( 12113 MiB) max; 7663MB ( 7308 MiB) avg Allocated non-heap memory: 47MB ( 45 MiB) max; 32MB ( 30 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".