This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-16 12:08:51,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-16 12:08:51,600 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-16 12:08:51,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-16 12:08:51,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-16 12:08:51,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-16 12:08:51,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-16 12:08:51,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-16 12:08:51,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-16 12:08:51,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-16 12:08:51,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-16 12:08:51,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-16 12:08:51,648 INFO L153 SettingsManager]: * Use SBE=true [2024-10-16 12:08:51,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-16 12:08:51,652 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-16 12:08:51,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-16 12:08:51,653 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-16 12:08:51,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-16 12:08:51,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-16 12:08:51,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-16 12:08:51,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-16 12:08:51,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-16 12:08:51,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-16 12:08:51,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-16 12:08:51,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-16 12:08:51,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-16 12:08:51,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-16 12:08:51,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-16 12:08:51,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-16 12:08:51,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-16 12:08:51,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 12:08:51,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-16 12:08:51,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-16 12:08:51,656 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-16 12:08:51,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-16 12:08:51,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-16 12:08:51,658 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-16 12:08:51,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-16 12:08:51,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-16 12:08:51,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-16 12:08:51,660 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-16 12:08:51,660 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 -> 4d8c741fd238f074816319de9a9bd5d97cd9b35eb7f53a276be973ea0c31ecbe 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 12:08:51,983 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-16 12:08:52,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-16 12:08:52,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-16 12:08:52,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-16 12:08:52,014 INFO L274 PluginConnector]: CDTParser initialized [2024-10-16 12:08:52,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/bigshot_s.i [2024-10-16 12:08:53,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-16 12:08:53,934 INFO L384 CDTParser]: Found 1 translation units. [2024-10-16 12:08:53,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i [2024-10-16 12:08:53,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b26c1720/9ae5f9fbe6e54d1c823442e539143c27/FLAGfdd2f6edf [2024-10-16 12:08:53,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5b26c1720/9ae5f9fbe6e54d1c823442e539143c27 [2024-10-16 12:08:53,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-16 12:08:53,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-16 12:08:53,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-16 12:08:53,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-16 12:08:53,991 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-16 12:08:53,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:53" (1/1) ... [2024-10-16 12:08:53,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77782df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:53, skipping insertion in model container [2024-10-16 12:08:53,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:53" (1/1) ... [2024-10-16 12:08:54,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-16 12:08:54,600 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2024-10-16 12:08:54,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 12:08:54,630 INFO L200 MainTranslator]: Completed pre-run [2024-10-16 12:08:54,677 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/bigshot_s.i[55202,55215] [2024-10-16 12:08:54,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-16 12:08:54,761 INFO L204 MainTranslator]: Completed translation [2024-10-16 12:08:54,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54 WrapperNode [2024-10-16 12:08:54,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-16 12:08:54,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-16 12:08:54,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-16 12:08:54,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-16 12:08:54,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,826 INFO L138 Inliner]: procedures = 322, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-10-16 12:08:54,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-16 12:08:54,827 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-16 12:08:54,827 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-16 12:08:54,827 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-16 12:08:54,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-16 12:08:54,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-16 12:08:54,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-16 12:08:54,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-16 12:08:54,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (1/1) ... [2024-10-16 12:08:54,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-16 12:08:54,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 12:08:54,918 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 12:08:54,921 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 12:08:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-16 12:08:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-16 12:08:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-16 12:08:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-16 12:08:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-16 12:08:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-16 12:08:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-16 12:08:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-16 12:08:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-16 12:08:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-16 12:08:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-16 12:08:54,975 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 12:08:55,137 INFO L238 CfgBuilder]: Building ICFG [2024-10-16 12:08:55,139 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-16 12:08:55,322 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-16 12:08:55,323 INFO L287 CfgBuilder]: Performing block encoding [2024-10-16 12:08:55,476 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-16 12:08:55,478 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-16 12:08:55,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:55 BoogieIcfgContainer [2024-10-16 12:08:55,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-16 12:08:55,482 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-16 12:08:55,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-16 12:08:55,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-16 12:08:55,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:08:53" (1/3) ... [2024-10-16 12:08:55,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696c990a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:55, skipping insertion in model container [2024-10-16 12:08:55,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:54" (2/3) ... [2024-10-16 12:08:55,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696c990a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:55, skipping insertion in model container [2024-10-16 12:08:55,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:55" (3/3) ... [2024-10-16 12:08:55,489 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s.i [2024-10-16 12:08:55,508 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-16 12:08:55,508 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-16 12:08:55,508 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-16 12:08:55,557 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-16 12:08:55,608 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-16 12:08:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-16 12:08:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 12:08:55,612 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 12:08:55,613 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 12:08:55,733 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-16 12:08:55,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 12:08:55,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-16 12:08:55,765 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;@164016f1, 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 12:08:55,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-16 12:08:56,601 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 12:08:56,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 12:08:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1687339131, now seen corresponding path program 1 times [2024-10-16 12:08:56,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 12:08:56,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465508254] [2024-10-16 12:08:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 12:08:56,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 12:08:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 12:08:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 12:08:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465508254] [2024-10-16 12:08:57,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465508254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 12:08:57,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 12:08:57,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-16 12:08:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177482470] [2024-10-16 12:08:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 12:08:57,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-16 12:08:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 12:08:57,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-16 12:08:57,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-16 12:08:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:57,058 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 12:08:57,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 12:08:57,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:08:57,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-16 12:08:57,111 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 12:08:57,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 12:08:57,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1611213259, now seen corresponding path program 1 times [2024-10-16 12:08:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 12:08:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451378328] [2024-10-16 12:08:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 12:08:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 12:08:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 12:08:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:57,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 12:08:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451378328] [2024-10-16 12:08:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451378328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-16 12:08:57,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-16 12:08:57,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-16 12:08:57,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143973402] [2024-10-16 12:08:57,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-16 12:08:57,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-16 12:08:57,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 12:08:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-16 12:08:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-16 12:08:57,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:57,474 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 12:08:57,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 12:08:57,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:08:57,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:08:57,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 12:08:57,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-16 12:08:57,587 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 12:08:57,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 12:08:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1885510072, now seen corresponding path program 1 times [2024-10-16 12:08:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 12:08:57,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815778463] [2024-10-16 12:08:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 12:08:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 12:08:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 12:08:57,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:57,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 12:08:57,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815778463] [2024-10-16 12:08:57,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815778463] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 12:08:57,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429427486] [2024-10-16 12:08:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 12:08:57,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 12:08:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 12:08:57,991 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 12:08:57,994 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 12:08:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 12:08:58,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-16 12:08:58,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 12:08:58,184 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-10-16 12:08:58,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-10-16 12:08:58,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-16 12:08:58,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-16 12:08:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:58,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 12:08:58,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:58,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429427486] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 12:08:58,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 12:08:58,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-16 12:08:58,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338687848] [2024-10-16 12:08:58,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 12:08:58,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-16 12:08:58,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 12:08:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-16 12:08:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=316, Unknown=6, NotChecked=0, Total=380 [2024-10-16 12:08:58,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:58,649 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 12:08:58,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 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 12:08:58,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:08:58,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 12:08:58,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:08:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:08:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 12:08:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-16 12:08:58,954 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 12:08:59,135 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,SelfDestructingSolverStorable2 [2024-10-16 12:08:59,136 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 12:08:59,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-16 12:08:59,138 INFO L85 PathProgramCache]: Analyzing trace with hash -722761605, now seen corresponding path program 2 times [2024-10-16 12:08:59,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-16 12:08:59,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062186004] [2024-10-16 12:08:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-16 12:08:59,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-16 12:08:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-16 12:08:59,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:08:59,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-16 12:08:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062186004] [2024-10-16 12:08:59,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062186004] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-16 12:08:59,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542696719] [2024-10-16 12:08:59,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-16 12:08:59,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 12:08:59,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-16 12:08:59,533 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 12:08:59,534 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 12:08:59,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-16 12:08:59,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-16 12:08:59,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-16 12:08:59,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-16 12:08:59,804 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-16 12:08:59,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2024-10-16 12:08:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-16 12:08:59,910 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-16 12:08:59,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2024-10-16 12:08:59,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-16 12:08:59,997 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-16 12:08:59,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2024-10-16 12:09:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-16 12:09:00,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-16 12:09:15,453 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 12:09:15,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542696719] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-16 12:09:15,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-16 12:09:15,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 10] total 24 [2024-10-16 12:09:15,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680066163] [2024-10-16 12:09:15,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-16 12:09:15,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-16 12:09:15,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-16 12:09:15,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-16 12:09:15,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=499, Unknown=6, NotChecked=0, Total=600 [2024-10-16 12:09:15,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:09:15,458 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-16 12:09:15,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 24 states have internal predecessors, (62), 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 12:09:15,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:09:15,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-10-16 12:09:15,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-16 12:09:15,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-16 12:09:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-16 12:09:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-16 12:09:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-16 12:09:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-16 12:09:16,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-10-16 12:09:16,159 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-10-16 12:09:16,160 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-10-16 12:09:16,179 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 12:09:16,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-16 12:09:16,370 INFO L414 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-10-16 12:09:16,373 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-16 12:09:16,373 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-16 12:09:16,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:09:16 BasicIcfg [2024-10-16 12:09:16,377 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-16 12:09:16,377 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-16 12:09:16,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-16 12:09:16,378 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-16 12:09:16,378 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:55" (3/4) ... [2024-10-16 12:09:16,381 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-16 12:09:16,386 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-16 12:09:16,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-16 12:09:16,393 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2024-10-16 12:09:16,393 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-16 12:09:16,394 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-16 12:09:16,394 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-16 12:09:16,394 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-16 12:09:16,477 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-10-16 12:09:16,478 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-10-16 12:09:16,478 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-16 12:09:16,479 INFO L158 Benchmark]: Toolchain (without parser) took 22495.80ms. Allocated memory was 75.5MB in the beginning and 146.8MB in the end (delta: 71.3MB). Free memory was 44.7MB in the beginning and 113.4MB in the end (delta: -68.8MB). Peak memory consumption was 73.1MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,482 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-16 12:09:16,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 776.82ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 51.3MB in the end (delta: -6.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.83ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 48.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,483 INFO L158 Benchmark]: Boogie Preprocessor took 48.78ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,483 INFO L158 Benchmark]: RCFGBuilder took 602.19ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 47.2MB in the beginning and 69.4MB in the end (delta: -22.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,483 INFO L158 Benchmark]: TraceAbstraction took 20894.58ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 68.4MB in the beginning and 45.3MB in the end (delta: 23.2MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,483 INFO L158 Benchmark]: Witness Printer took 100.73ms. Allocated memory is still 146.8MB. Free memory was 45.3MB in the beginning and 113.4MB in the end (delta: -68.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-10-16 12:09:16,485 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 50.3MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 776.82ms. Allocated memory is still 75.5MB. Free memory was 44.4MB in the beginning and 51.3MB in the end (delta: -6.9MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.83ms. Allocated memory is still 75.5MB. Free memory was 51.0MB in the beginning and 48.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.78ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 47.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.19ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 47.2MB in the beginning and 69.4MB in the end (delta: -22.2MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20894.58ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 68.4MB in the beginning and 45.3MB in the end (delta: 23.2MB). Peak memory consumption was 70.0MB. Max. memory is 16.1GB. * Witness Printer took 100.73ms. Allocated memory is still 146.8MB. Free memory was 45.3MB in the beginning and 113.4MB in the end (delta: -68.2MB). Peak memory consumption was 2.3MB. 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: 156, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 41, dependent conditional: 38, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 785, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 121, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 785, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 121, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36 ], Independence queries for same thread: 38, Persistent sets #1 benchmarks: Persistent set computation time: 0.8s, Number of persistent set computation: 29, Number of trivial persistent sets: 26, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 82, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 156, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 41, dependent conditional: 38, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 118, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 785, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 121, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 0, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 36, independent unconditional: 79, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 121, independent: 115, independent conditional: 0, independent unconditional: 115, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 785, independent: 142, independent conditional: 0, independent unconditional: 142, dependent: 643, dependent conditional: 0, dependent unconditional: 643, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 121, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36 ], Independence queries for same thread: 38 - PositiveResult [Line: 1107]: 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, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 2.0s, 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: 28, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 151 ConstructedInterpolants, 22 QuantifiedInterpolants, 1905 SizeOfPredicates, 19 NumberOfNonLiveVariables, 321 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 3/24 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: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-16 12:09:16,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-16 12:09:16,723 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...