This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 15:19:12,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 15:19:12,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 15:19:12,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 15:19:12,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 15:19:12,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 15:19:12,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 15:19:12,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 15:19:12,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 15:19:12,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 15:19:12,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 15:19:12,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 15:19:12,653 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 15:19:12,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 15:19:12,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 15:19:12,656 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 15:19:12,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 15:19:12,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 15:19:12,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 15:19:12,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 15:19:12,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 15:19:12,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 15:19:12,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 15:19:12,661 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 15:19:12,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 15:19:12,661 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 15:19:12,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 15:19:12,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 15:19:12,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 15:19:12,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 15:19:12,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 15:19:12,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 15:19:12,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 15:19:12,664 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 15:19:12,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 15:19:12,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 15:19:12,666 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 15:19:12,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 15:19:12,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 15:19:12,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 15:19:12,667 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 15:19:12,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe7fc3189e39cd6587b4d7d83621bd29f6e1c085e1b3af197b9abc1746b629ea Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> DEFAULT Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: TraceCheck mode for conditional commutativity -> SYMBOLIC_RELATION [2024-10-16 15:19:13,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 15:19:13,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 15:19:13,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 15:19:13,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 15:19:13,037 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 15:19:13,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2024-10-16 15:19:14,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 15:19:14,794 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 15:19:14,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2024-10-16 15:19:14,806 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a3abd425c/1255b245bf1a47c0887eb1ca897632de/FLAGc755d42fe [2024-10-16 15:19:14,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a3abd425c/1255b245bf1a47c0887eb1ca897632de [2024-10-16 15:19:14,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 15:19:14,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 15:19:14,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 15:19:14,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 15:19:14,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 15:19:14,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:19:14" (1/1) ... [2024-10-16 15:19:14,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2577c76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:14, skipping insertion in model container [2024-10-16 15:19:14,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:19:14" (1/1) ... [2024-10-16 15:19:14,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 15:19:15,068 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2024-10-16 15:19:15,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 15:19:15,081 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 15:19:15,098 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2063,2076] [2024-10-16 15:19:15,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 15:19:15,121 INFO L204 MainTranslator]: Completed translation [2024-10-16 15:19:15,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15 WrapperNode [2024-10-16 15:19:15,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 15:19:15,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 15:19:15,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 15:19:15,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 15:19:15,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,155 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 41 [2024-10-16 15:19:15,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 15:19:15,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 15:19:15,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 15:19:15,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 15:19:15,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 15:19:15,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 15:19:15,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 15:19:15,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 15:19:15,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (1/1) ... [2024-10-16 15:19:15,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 15:19:15,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:15,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-16 15:19:15,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-16 15:19:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 15:19:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-16 15:19:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-16 15:19:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-16 15:19:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-16 15:19:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 15:19:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-16 15:19:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-16 15:19:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 15:19:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 15:19:15,266 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-16 15:19:15,356 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 15:19:15,358 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 15:19:15,519 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 15:19:15,521 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 15:19:15,677 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 15:19:15,677 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-16 15:19:15,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:19:15 BoogieIcfgContainer [2024-10-16 15:19:15,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 15:19:15,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 15:19:15,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 15:19:15,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 15:19:15,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:19:14" (1/3) ... [2024-10-16 15:19:15,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad2602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:19:15, skipping insertion in model container [2024-10-16 15:19:15,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:19:15" (2/3) ... [2024-10-16 15:19:15,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad2602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:19:15, skipping insertion in model container [2024-10-16 15:19:15,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:19:15" (3/3) ... [2024-10-16 15:19:15,687 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2024-10-16 15:19:15,703 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 15:19:15,703 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-16 15:19:15,703 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 15:19:15,738 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-16 15:19:15,780 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 15:19:15,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 15:19:15,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:15,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-16 15:19:15,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-16 15:19:15,861 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 15:19:15,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:15,878 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 15:19:15,884 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@af3654b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=DEFAULT, mConComCheckerTraceCheckMode=SYMBOLIC_RELATION, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=100, mConComCheckerRandomSeed=123, mConComCheckerConditionCriterion=false [2024-10-16 15:19:15,885 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-16 15:19:16,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:16,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:16,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1634652143, now seen corresponding path program 1 times [2024-10-16 15:19:16,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:16,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451862931] [2024-10-16 15:19:16,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:16,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:16,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:16,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451862931] [2024-10-16 15:19:16,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451862931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 15:19:16,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 15:19:16,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-16 15:19:16,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407307304] [2024-10-16 15:19:16,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 15:19:16,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-16 15:19:16,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-16 15:19:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-16 15:19:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:16,677 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:16,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:16,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:16,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 15:19:16,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:16,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:16,754 INFO L85 PathProgramCache]: Analyzing trace with hash 477362289, now seen corresponding path program 1 times [2024-10-16 15:19:16,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346284869] [2024-10-16 15:19:16,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:17,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:17,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346284869] [2024-10-16 15:19:17,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346284869] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:17,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970130381] [2024-10-16 15:19:17,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:17,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:17,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:17,087 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:17,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-16 15:19:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:17,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-16 15:19:17,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:17,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:17,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-16 15:19:17,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970130381] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:17,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:17,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 19 [2024-10-16 15:19:17,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942369502] [2024-10-16 15:19:17,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:17,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-16 15:19:17,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-16 15:19:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-10-16 15:19:17,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:17,569 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:17,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:17,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:18,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:18,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-16 15:19:18,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-16 15:19:18,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:18,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1882152837, now seen corresponding path program 1 times [2024-10-16 15:19:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:18,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:18,733 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-16 15:19:18,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:18,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:18,836 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-16 15:19:18,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:18,838 INFO L85 PathProgramCache]: Analyzing trace with hash 870790765, now seen corresponding path program 2 times [2024-10-16 15:19:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:18,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913960659] [2024-10-16 15:19:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:18,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-16 15:19:19,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913960659] [2024-10-16 15:19:19,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913960659] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:19,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11286988] [2024-10-16 15:19:19,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-16 15:19:19,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:19,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:19,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:19,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-16 15:19:19,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-16 15:19:19,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 15:19:19,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-16 15:19:19,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-16 15:19:19,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:19,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11286988] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:19,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:19,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 10] total 12 [2024-10-16 15:19:19,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751332636] [2024-10-16 15:19:19,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:19,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-16 15:19:19,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-16 15:19:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-16 15:19:19,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:19,701 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:19,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:19,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:19,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:19,703 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:19,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:19,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-16 15:19:20,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:20,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1967828794, now seen corresponding path program 1 times [2024-10-16 15:19:20,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-16 15:19:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-16 15:19:20,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:20,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1440519853, now seen corresponding path program 3 times [2024-10-16 15:19:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:20,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089199917] [2024-10-16 15:19:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:20,834 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-16 15:19:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089199917] [2024-10-16 15:19:20,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089199917] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:20,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404846956] [2024-10-16 15:19:20,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-16 15:19:20,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:20,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:20,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-16 15:19:20,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-16 15:19:20,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 15:19:20,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-16 15:19:20,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 12 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:21,414 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-16 15:19:21,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404846956] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:21,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:21,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20, 14] total 49 [2024-10-16 15:19:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113192108] [2024-10-16 15:19:21,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:21,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-16 15:19:21,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:21,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-16 15:19:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=464, Invalid=1888, Unknown=0, NotChecked=0, Total=2352 [2024-10-16 15:19:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:21,874 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:21,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.061224489795918) internal successors, (101), 49 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:21,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:21,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:21,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:21,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:23,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-16 15:19:23,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-16 15:19:23,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:23,625 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash -567462287, now seen corresponding path program 1 times [2024-10-16 15:19:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:23,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:23,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 15:19:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:23,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:23,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1063040371, now seen corresponding path program 4 times [2024-10-16 15:19:23,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:23,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355311038] [2024-10-16 15:19:23,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:23,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 68 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-16 15:19:24,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:24,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355311038] [2024-10-16 15:19:24,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355311038] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:24,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511466591] [2024-10-16 15:19:24,203 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-16 15:19:24,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:24,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:24,205 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:24,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-16 15:19:24,266 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-16 15:19:24,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 15:19:24,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-16 15:19:24,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 34 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:24,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 35 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-16 15:19:24,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511466591] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:24,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:24,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 11] total 38 [2024-10-16 15:19:24,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918935320] [2024-10-16 15:19:24,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:24,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-16 15:19:24,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:24,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-16 15:19:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=1119, Unknown=0, NotChecked=0, Total=1406 [2024-10-16 15:19:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:24,960 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:24,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 38 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:24,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:24,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:24,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:24,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-10-16 15:19:24,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-16 15:19:25,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-16 15:19:25,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-16 15:19:26,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8,SelfDestructingSolverStorable9 [2024-10-16 15:19:26,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash -2111669634, now seen corresponding path program 1 times [2024-10-16 15:19:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:26,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 15:19:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:26,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:26,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1315114125, now seen corresponding path program 5 times [2024-10-16 15:19:26,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:26,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722733957] [2024-10-16 15:19:26,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:26,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-16 15:19:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722733957] [2024-10-16 15:19:26,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722733957] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524894600] [2024-10-16 15:19:26,509 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-16 15:19:26,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:26,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:26,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:26,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-16 15:19:26,570 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2024-10-16 15:19:26,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 15:19:26,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-16 15:19:26,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:26,634 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-16 15:19:26,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:26,784 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-16 15:19:26,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524894600] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:26,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:26,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2024-10-16 15:19:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931096297] [2024-10-16 15:19:26,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:26,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-16 15:19:26,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-16 15:19:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-10-16 15:19:26,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:26,786 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:26,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 17 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:26,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:26,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2024-10-16 15:19:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2024-10-16 15:19:26,787 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-10-16 15:19:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-16 15:19:27,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-16 15:19:27,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-16 15:19:27,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-16 15:19:27,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-16 15:19:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2090019045, now seen corresponding path program 1 times [2024-10-16 15:19:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:27,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:27,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-16 15:19:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-16 15:19:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash -696445784, now seen corresponding path program 1 times [2024-10-16 15:19:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 5 proven. 64 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-16 15:19:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:28,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 5 proven. 64 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-16 15:19:28,538 INFO L85 PathProgramCache]: Analyzing trace with hash 827789287, now seen corresponding path program 1 times [2024-10-16 15:19:28,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:28,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-16 15:19:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:28,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:29,154 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-16 15:19:29,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 15:19:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash 341124267, now seen corresponding path program 6 times [2024-10-16 15:19:29,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 15:19:29,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641139141] [2024-10-16 15:19:29,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 15:19:29,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 15:19:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 15:19:29,912 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 16 proven. 212 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-16 15:19:29,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 15:19:29,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641139141] [2024-10-16 15:19:29,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641139141] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 15:19:29,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989325818] [2024-10-16 15:19:29,913 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-16 15:19:29,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 15:19:29,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 15:19:29,915 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-16 15:19:29,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-16 15:19:29,980 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-10-16 15:19:29,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 15:19:29,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-16 15:19:29,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 15:19:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 12 proven. 252 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-16 15:19:30,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 15:19:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 15:19:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989325818] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 15:19:33,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 15:19:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 29, 30] total 74 [2024-10-16 15:19:33,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356426375] [2024-10-16 15:19:33,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 15:19:33,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-10-16 15:19:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 15:19:33,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-10-16 15:19:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1017, Invalid=4533, Unknown=0, NotChecked=0, Total=5550 [2024-10-16 15:19:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:33,171 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 15:19:33,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.1866666666666665) internal successors, (164), 74 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-16 15:19:33,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2024-10-16 15:19:33,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 15:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-16 15:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-16 15:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 15:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-16 15:19:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-10-16 15:19:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-16 15:19:38,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-10-16 15:19:38,419 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-16 15:19:38,419 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-16 15:19:38,419 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-16 15:19:38,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-16 15:19:38,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12,SelfDestructingSolverStorable13,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16,SelfDestructingSolverStorable17 [2024-10-16 15:19:38,632 INFO L414 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-16 15:19:38,635 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-16 15:19:38,635 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-16 15:19:38,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:19:38 BasicIcfg [2024-10-16 15:19:38,644 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-16 15:19:38,645 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-16 15:19:38,645 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-16 15:19:38,645 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-16 15:19:38,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:19:15" (3/4) ... [2024-10-16 15:19:38,647 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-16 15:19:38,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-16 15:19:38,651 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-16 15:19:38,656 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-10-16 15:19:38,657 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-16 15:19:38,657 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-16 15:19:38,657 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-16 15:19:38,736 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-16 15:19:38,737 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-16 15:19:38,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-16 15:19:38,738 INFO L158 Benchmark]: Toolchain (without parser) took 23911.76ms. Allocated memory was 71.3MB in the beginning and 423.6MB in the end (delta: 352.3MB). Free memory was 37.4MB in the beginning and 322.7MB in the end (delta: -285.3MB). Peak memory consumption was 66.8MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,738 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 15:19:38,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.73ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 44.8MB in the end (delta: -7.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 71.3MB. Free memory was 44.8MB in the beginning and 43.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,739 INFO L158 Benchmark]: Boogie Preprocessor took 25.05ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 42.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,739 INFO L158 Benchmark]: RCFGBuilder took 491.95ms. Allocated memory is still 71.3MB. Free memory was 42.1MB in the beginning and 43.8MB in the end (delta: -1.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,739 INFO L158 Benchmark]: TraceAbstraction took 22963.21ms. Allocated memory was 71.3MB in the beginning and 423.6MB in the end (delta: 352.3MB). Free memory was 42.9MB in the beginning and 327.9MB in the end (delta: -285.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,740 INFO L158 Benchmark]: Witness Printer took 92.62ms. Allocated memory is still 423.6MB. Free memory was 327.9MB in the beginning and 322.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-16 15:19:38,741 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.73ms. Allocated memory is still 71.3MB. Free memory was 37.2MB in the beginning and 44.8MB in the end (delta: -7.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 71.3MB. Free memory was 44.8MB in the beginning and 43.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.05ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 42.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.95ms. Allocated memory is still 71.3MB. Free memory was 42.1MB in the beginning and 43.8MB in the end (delta: -1.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22963.21ms. Allocated memory was 71.3MB in the beginning and 423.6MB in the end (delta: 352.3MB). Free memory was 42.9MB in the beginning and 327.9MB in the end (delta: -285.1MB). Peak memory consumption was 68.3MB. Max. memory is 16.1GB. * Witness Printer took 92.62ms. Allocated memory is still 423.6MB. Free memory was 327.9MB in the beginning and 322.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4920, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 852, dependent conditional: 848, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2803, independent: 932, independent conditional: 818, independent unconditional: 114, dependent: 1872, dependent conditional: 1555, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5258, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1138, dependent conditional: 544, dependent unconditional: 594, unknown: 232, unknown conditional: 75, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 52, Negative conditional cache size: 48, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4206, Maximal queried relation: 7, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2803, independent: 932, independent conditional: 818, independent unconditional: 114, dependent: 1872, dependent conditional: 1555, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5258, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1138, dependent conditional: 544, dependent unconditional: 594, unknown: 232, unknown conditional: 75, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 52, Negative conditional cache size: 48, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4206 ], Independence queries for same thread: 739, Persistent sets #1 benchmarks: Persistent set computation time: 0.5s, Number of persistent set computation: 53, Number of trivial persistent sets: 44, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 183, independent: 179, independent conditional: 0, independent unconditional: 179, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4920, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 852, dependent conditional: 848, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4181, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 113, dependent conditional: 109, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2803, independent: 932, independent conditional: 818, independent unconditional: 114, dependent: 1872, dependent conditional: 1555, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5258, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1138, dependent conditional: 544, dependent unconditional: 594, unknown: 232, unknown conditional: 75, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 52, Negative conditional cache size: 48, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4206, Maximal queried relation: 7, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 3889, independent unconditional: 179, dependent: 1190, dependent conditional: 1182, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5258, independent: 4068, independent conditional: 273, independent unconditional: 3795, dependent: 1190, dependent conditional: 592, dependent unconditional: 598, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 232, independent: 180, independent conditional: 27, independent unconditional: 153, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 232, independent: 152, independent conditional: 0, independent unconditional: 152, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 80, independent: 28, independent conditional: 27, independent unconditional: 1, dependent: 52, dependent conditional: 48, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2803, independent: 932, independent conditional: 818, independent unconditional: 114, dependent: 1872, dependent conditional: 1555, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 5258, independent: 3888, independent conditional: 246, independent unconditional: 3642, dependent: 1138, dependent conditional: 544, dependent unconditional: 594, unknown: 232, unknown conditional: 75, unknown unconditional: 157] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 180, Positive conditional cache size: 27, Positive unconditional cache size: 153, Negative cache size: 52, Negative conditional cache size: 48, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4206 ], Independence queries for same thread: 739 - PositiveResult [Line: 77]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 22.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 9.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 292, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 508 NumberOfCodeBlocks, 505 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 735 ConstructedInterpolants, 0 QuantifiedInterpolants, 6356 SizeOfPredicates, 49 NumberOfNonLiveVariables, 726 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 645/1717 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: ConditionalCommutativityOverallTime: 2.6s, ConditionalCommutativityCheckTime: 2.6s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 7, ConditionalCommutativityTraceChecks: 7, ConditionalCommutativityImperfectProofs: 4 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-16 15:19:38,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-16 15:19:38,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...