/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/reorder_5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:00:16,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:00:16,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 15:00:16,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:00:16,817 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:00:16,818 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:00:16,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:00:16,818 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:00:16,819 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:00:16,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:00:16,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:00:16,824 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:00:16,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:00:16,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:00:16,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:00:16,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:00:16,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:00:16,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:00:16,826 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:00:16,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:00:16,826 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:00:16,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:00:16,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:00:16,828 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:00:16,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:00:16,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:00:16,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:00:16,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:00:16,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:00:16,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:00:16,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:00:16,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:00:16,831 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:00:17,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:00:17,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:00:17,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:00:17,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:00:17,130 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:00:17,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/reorder_5.i [2023-11-17 15:00:18,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:00:18,652 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:00:18,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i [2023-11-17 15:00:18,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e44727e7/edc9c550ae0f4d84b781a2b276553f9a/FLAG542f3c86c [2023-11-17 15:00:18,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e44727e7/edc9c550ae0f4d84b781a2b276553f9a [2023-11-17 15:00:18,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:00:18,697 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:00:18,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:00:18,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:00:18,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:00:18,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:00:18" (1/1) ... [2023-11-17 15:00:18,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d191b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:18, skipping insertion in model container [2023-11-17 15:00:18,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:00:18" (1/1) ... [2023-11-17 15:00:18,763 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:00:19,221 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i[59755,59768] [2023-11-17 15:00:19,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:00:19,234 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:00:19,282 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/reorder_5.i[59755,59768] [2023-11-17 15:00:19,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:00:19,355 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:00:19,355 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:00:19,355 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:00:19,360 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:00:19,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19 WrapperNode [2023-11-17 15:00:19,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:00:19,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:00:19,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:00:19,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:00:19,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,415 INFO L138 Inliner]: procedures = 373, calls = 55, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 166 [2023-11-17 15:00:19,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:00:19,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:00:19,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:00:19,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:00:19,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:00:19,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:00:19,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:00:19,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:00:19,470 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (1/1) ... [2023-11-17 15:00:19,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:00:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:00:19,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 15:00:19,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 15:00:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-17 15:00:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-17 15:00:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:00:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 15:00:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:00:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-17 15:00:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:00:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2023-11-17 15:00:19,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2023-11-17 15:00:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:00:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:00:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2023-11-17 15:00:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2023-11-17 15:00:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:00:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:00:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:00:19,548 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:00:19,745 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:00:19,747 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:00:20,113 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:00:20,125 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:00:20,125 INFO L307 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-17 15:00:20,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:00:20 BoogieIcfgContainer [2023-11-17 15:00:20,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:00:20,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:00:20,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:00:20,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:00:20,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:00:18" (1/3) ... [2023-11-17 15:00:20,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40116aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:00:20, skipping insertion in model container [2023-11-17 15:00:20,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:00:19" (2/3) ... [2023-11-17 15:00:20,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40116aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:00:20, skipping insertion in model container [2023-11-17 15:00:20,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:00:20" (3/3) ... [2023-11-17 15:00:20,134 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2023-11-17 15:00:20,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:00:20,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:00:20,147 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:00:20,201 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 15:00:20,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 192 transitions, 404 flow [2023-11-17 15:00:20,356 INFO L124 PetriNetUnfolderBase]: 37/385 cut-off events. [2023-11-17 15:00:20,357 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:00:20,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 385 events. 37/385 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1378 event pairs, 0 based on Foata normal form. 0/340 useless extension candidates. Maximal degree in co-relation 209. Up to 8 conditions per place. [2023-11-17 15:00:20,366 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 192 transitions, 404 flow [2023-11-17 15:00:20,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 190 transitions, 394 flow [2023-11-17 15:00:20,375 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:00:20,387 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 180 places, 190 transitions, 394 flow [2023-11-17 15:00:20,389 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 180 places, 190 transitions, 394 flow [2023-11-17 15:00:20,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 190 transitions, 394 flow [2023-11-17 15:00:20,452 INFO L124 PetriNetUnfolderBase]: 31/357 cut-off events. [2023-11-17 15:00:20,452 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-17 15:00:20,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 357 events. 31/357 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1230 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 209. Up to 8 conditions per place. [2023-11-17 15:00:20,461 INFO L119 LiptonReduction]: Number of co-enabled transitions 2830 [2023-11-17 15:00:33,251 INFO L134 LiptonReduction]: Checked pairs total: 4524 [2023-11-17 15:00:33,252 INFO L136 LiptonReduction]: Total number of compositions: 213 [2023-11-17 15:00:33,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:00:33,297 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, 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;@57be613f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:00:33,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 15:00:33,302 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:00:33,302 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-17 15:00:33,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:00:33,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:00:33,303 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-17 15:00:33,304 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:00:33,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:00:33,309 INFO L85 PathProgramCache]: Analyzing trace with hash -380859787, now seen corresponding path program 1 times [2023-11-17 15:00:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:00:33,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609923449] [2023-11-17 15:00:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:00:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:00:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:00:33,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 15:00:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:00:33,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 15:00:33,667 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 15:00:33,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-17 15:00:33,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-17 15:00:33,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 15:00:33,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-17 15:00:33,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:00:33,671 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 15:00:33,674 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-17 15:00:33,674 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-17 15:00:33,703 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-17 15:00:33,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,842 INFO L124 PetriNetUnfolderBase]: 149/1210 cut-off events. [2023-11-17 15:00:33,842 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-17 15:00:33,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1210 events. 149/1210 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6781 event pairs, 2 based on Foata normal form. 0/1068 useless extension candidates. Maximal degree in co-relation 704. Up to 32 conditions per place. [2023-11-17 15:00:33,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,855 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,855 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:00:33,856 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,856 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 216 transitions, 476 flow [2023-11-17 15:00:33,978 INFO L124 PetriNetUnfolderBase]: 149/1210 cut-off events. [2023-11-17 15:00:33,978 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-17 15:00:33,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1210 events. 149/1210 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6781 event pairs, 2 based on Foata normal form. 0/1068 useless extension candidates. Maximal degree in co-relation 704. Up to 32 conditions per place. [2023-11-17 15:00:34,003 INFO L119 LiptonReduction]: Number of co-enabled transitions 7172 [2023-11-17 15:00:45,794 INFO L134 LiptonReduction]: Checked pairs total: 15450 [2023-11-17 15:00:45,794 INFO L136 LiptonReduction]: Total number of compositions: 222 [2023-11-17 15:00:45,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:00:45,798 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, 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;@57be613f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:00:45,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-17 15:00:45,801 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:00:45,802 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2023-11-17 15:00:45,802 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:00:45,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:00:45,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:00:45,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:00:45,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:00:45,803 INFO L85 PathProgramCache]: Analyzing trace with hash 360224682, now seen corresponding path program 1 times [2023-11-17 15:00:45,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:00:45,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999925928] [2023-11-17 15:00:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:00:45,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:00:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:00:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 15:00:46,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:00:46,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999925928] [2023-11-17 15:00:46,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999925928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:00:46,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:00:46,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:00:46,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262595067] [2023-11-17 15:00:46,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:00:46,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:00:46,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:00:46,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:00:46,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:00:46,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 438 [2023-11-17 15:00:46,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 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) [2023-11-17 15:00:46,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:00:46,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 438 [2023-11-17 15:00:46,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:00:47,249 INFO L124 PetriNetUnfolderBase]: 9137/13572 cut-off events. [2023-11-17 15:00:47,250 INFO L125 PetriNetUnfolderBase]: For 1836/1836 co-relation queries the response was YES. [2023-11-17 15:00:47,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27748 conditions, 13572 events. 9137/13572 cut-off events. For 1836/1836 co-relation queries the response was YES. Maximal size of possible extension queue 452. Compared 78132 event pairs, 2345 based on Foata normal form. 0/10846 useless extension candidates. Maximal degree in co-relation 19647. Up to 10569 conditions per place. [2023-11-17 15:00:47,340 INFO L140 encePairwiseOnDemand]: 430/438 looper letters, 92 selfloop transitions, 8 changer transitions 0/106 dead transitions. [2023-11-17 15:00:47,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 106 transitions, 509 flow [2023-11-17 15:00:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:00:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:00:47,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 996 transitions. [2023-11-17 15:00:47,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4547945205479452 [2023-11-17 15:00:47,360 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 996 transitions. [2023-11-17 15:00:47,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 996 transitions. [2023-11-17 15:00:47,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:00:47,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 996 transitions. [2023-11-17 15:00:47,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 199.2) internal successors, (996), 5 states have internal predecessors, (996), 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) [2023-11-17 15:00:47,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-11-17 15:00:47,379 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-11-17 15:00:47,381 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 128 flow. Second operand 5 states and 996 transitions. [2023-11-17 15:00:47,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 106 transitions, 509 flow [2023-11-17 15:00:47,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 106 transitions, 509 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:00:47,397 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 185 flow [2023-11-17 15:00:47,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2023-11-17 15:00:47,402 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2023-11-17 15:00:47,403 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 185 flow [2023-11-17 15:00:47,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 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) [2023-11-17 15:00:47,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:00:47,404 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:00:47,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:00:47,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:00:47,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:00:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1443407127, now seen corresponding path program 1 times [2023-11-17 15:00:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:00:47,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350250280] [2023-11-17 15:00:47,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:00:47,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:00:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:00:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 15:00:47,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:00:47,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350250280] [2023-11-17 15:00:47,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350250280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:00:47,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:00:47,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 15:00:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780780364] [2023-11-17 15:00:47,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:00:47,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 15:00:47,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:00:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 15:00:47,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 15:00:47,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 438 [2023-11-17 15:00:47,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-11-17 15:00:47,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:00:47,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 438 [2023-11-17 15:00:47,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:00:49,039 INFO L124 PetriNetUnfolderBase]: 10891/16027 cut-off events. [2023-11-17 15:00:49,039 INFO L125 PetriNetUnfolderBase]: For 12205/12205 co-relation queries the response was YES. [2023-11-17 15:00:49,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43730 conditions, 16027 events. 10891/16027 cut-off events. For 12205/12205 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 91894 event pairs, 3864 based on Foata normal form. 0/13797 useless extension candidates. Maximal degree in co-relation 32652. Up to 12699 conditions per place. [2023-11-17 15:00:49,154 INFO L140 encePairwiseOnDemand]: 431/438 looper letters, 90 selfloop transitions, 14 changer transitions 0/110 dead transitions. [2023-11-17 15:00:49,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 110 transitions, 602 flow [2023-11-17 15:00:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 15:00:49,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-17 15:00:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 988 transitions. [2023-11-17 15:00:49,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4511415525114155 [2023-11-17 15:00:49,158 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 988 transitions. [2023-11-17 15:00:49,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 988 transitions. [2023-11-17 15:00:49,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:00:49,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 988 transitions. [2023-11-17 15:00:49,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 197.6) internal successors, (988), 5 states have internal predecessors, (988), 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) [2023-11-17 15:00:49,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-11-17 15:00:49,166 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 438.0) internal successors, (2628), 6 states have internal predecessors, (2628), 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) [2023-11-17 15:00:49,166 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 185 flow. Second operand 5 states and 988 transitions. [2023-11-17 15:00:49,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 110 transitions, 602 flow [2023-11-17 15:00:49,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 110 transitions, 593 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:00:49,188 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 279 flow [2023-11-17 15:00:49,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=438, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=279, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2023-11-17 15:00:49,189 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2023-11-17 15:00:49,189 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 279 flow [2023-11-17 15:00:49,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 180.0) internal successors, (720), 4 states have internal predecessors, (720), 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) [2023-11-17 15:00:49,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:00:49,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-17 15:00:49,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:00:49,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION === [checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-11-17 15:00:49,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:00:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1490226957, now seen corresponding path program 1 times [2023-11-17 15:00:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:00:49,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132293476] [2023-11-17 15:00:49,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:00:49,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:00:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:00:49,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 15:00:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:00:49,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 15:00:49,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 15:00:49,329 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-11-17 15:00:49,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-11-17 15:00:49,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-11-17 15:00:49,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-11-17 15:00:49,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-11-17 15:00:49,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 15:00:49,331 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 15:00:49,335 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-17 15:00:49,335 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:00:49,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated [2023-11-17 15:00:49,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated [2023-11-17 15:00:49,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated [2023-11-17 15:00:49,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-17 15:00:49,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-17 15:00:49,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated [2023-11-17 15:00:49,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-17 15:00:49,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-17 15:00:49,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated [2023-11-17 15:00:49,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:00:49 BasicIcfg [2023-11-17 15:00:49,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:00:49,387 INFO L158 Benchmark]: Toolchain (without parser) took 30690.56ms. Allocated memory was 270.5MB in the beginning and 502.3MB in the end (delta: 231.7MB). Free memory was 219.3MB in the beginning and 120.9MB in the end (delta: 98.4MB). Peak memory consumption was 331.2MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,387 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:00:49,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.68ms. Allocated memory is still 270.5MB. Free memory was 219.3MB in the beginning and 179.5MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.28ms. Allocated memory is still 270.5MB. Free memory was 179.5MB in the beginning and 176.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,388 INFO L158 Benchmark]: Boogie Preprocessor took 51.57ms. Allocated memory is still 270.5MB. Free memory was 176.9MB in the beginning and 174.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,389 INFO L158 Benchmark]: RCFGBuilder took 657.81ms. Allocated memory is still 270.5MB. Free memory was 174.8MB in the beginning and 154.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,389 INFO L158 Benchmark]: TraceAbstraction took 29258.03ms. Allocated memory was 270.5MB in the beginning and 502.3MB in the end (delta: 231.7MB). Free memory was 153.8MB in the beginning and 120.9MB in the end (delta: 32.9MB). Peak memory consumption was 266.2MB. Max. memory is 8.0GB. [2023-11-17 15:00:49,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 179.3MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 663.68ms. Allocated memory is still 270.5MB. Free memory was 219.3MB in the beginning and 179.5MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.28ms. Allocated memory is still 270.5MB. Free memory was 179.5MB in the beginning and 176.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.57ms. Allocated memory is still 270.5MB. Free memory was 176.9MB in the beginning and 174.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 657.81ms. Allocated memory is still 270.5MB. Free memory was 174.8MB in the beginning and 154.3MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 29258.03ms. Allocated memory was 270.5MB in the beginning and 502.3MB in the end (delta: 231.7MB). Free memory was 153.8MB in the beginning and 120.9MB in the end (delta: 32.9MB). Peak memory consumption was 266.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.9s, 180 PlacesBefore, 27 PlacesAfterwards, 190 TransitionsBefore, 24 TransitionsAfterwards, 2830 CoEnabledTransitionPairs, 8 FixpointIterations, 72 TrivialSequentialCompositions, 90 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 26 ConcurrentYvCompositions, 13 ChoiceCompositions, 213 TotalNumberOfCompositions, 4524 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3330, independent: 3261, independent conditional: 0, independent unconditional: 3261, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2226, independent: 2210, independent conditional: 0, independent unconditional: 2210, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2226, independent: 2210, independent conditional: 0, independent unconditional: 2210, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3330, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 2226, unknown conditional: 0, unknown unconditional: 2226] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 203 PlacesBefore, 42 PlacesAfterwards, 216 TransitionsBefore, 42 TransitionsAfterwards, 7172 CoEnabledTransitionPairs, 8 FixpointIterations, 73 TrivialSequentialCompositions, 94 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 32 ConcurrentYvCompositions, 13 ChoiceCompositions, 222 TotalNumberOfCompositions, 15450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11605, independent: 11461, independent conditional: 0, independent unconditional: 11461, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5630, independent: 5594, independent conditional: 0, independent unconditional: 5594, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5630, independent: 5591, independent conditional: 0, independent unconditional: 5591, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11605, independent: 5867, independent conditional: 0, independent unconditional: 5867, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 5630, unknown conditional: 0, unknown unconditional: 5630] , Statistics on independence cache: Total cache size (in pairs): 353, Positive cache size: 341, Positive conditional cache size: 0, Positive unconditional cache size: 341, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 1299]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1245. Possible FailurePath: [L1229] 0 static int iSet = 4; [L1230] 0 static int iCheck = 1; [L1231] 0 static int a = 0; [L1232] 0 static int b = 0; [L1239] 0 int i, err; [L1240] COND FALSE 0 !(argc != 1) [L1249] EXPR 0 \read(iSet) [L1249] 0 iSet > 100000 || iCheck > 100000 [L1249] EXPR 0 \read(iCheck) [L1249] 0 iSet > 100000 || iCheck > 100000 [L1249] COND FALSE 0 !(iSet > 100000 || iCheck > 100000) [L1252] EXPR 0 \read(iSet) [L1252] 0 pthread_t setPool[iSet]; [L1253] EXPR 0 \read(iCheck) [L1253] 0 pthread_t checkPool[iCheck]; [L1254] 0 i = 0 VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, i=0, iCheck={11:0}, iSet={10:0}, setPool={13:0}] [L1254] EXPR 0 \read(iSet) [L1254] COND TRUE 0 i < iSet [L1255] EXPR, FCALL, FORK 0 pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={13:0}] [L1255] EXPR 0 err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={13:0}] [L1255] COND FALSE 0 !(0 != (err = pthread_create(&setPool[i], ((void *)0), &setThread, ((void *)0)))) [L1254] 0 i++ VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, err=0, i=1, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={13:0}] [L1254] EXPR 0 \read(iSet) [L1254] COND FALSE 0 !(i < iSet) [L1260] 0 i = 0 VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, setPool={13:0}] [L1260] EXPR 0 \read(iCheck) [L1260] COND TRUE 0 i < iCheck [L1261-L1262] FCALL, FORK 0 pthread_create(&checkPool[i], ((void *)0), &checkThread, ((void *)0)) VAL [\old(argc)=3, a=0, argc=3, argv={56:55}, argv={56:55}, b=0, checkPool={14:0}, err=0, i=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, setPool={13:0}] [L1283] 1 a = 1 VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, param={0:0}, param={0:0}, param={0:0}] [L1292] 2 int la = a; VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, la=1, param={0:0}, param={0:0}, param={0:0}, param={0:0}] [L1295] 2 int lb = b; [L1297] COND TRUE 2 ! ((la == 0 && lb == 0) || (la == 1 && lb == -1)) [L1299] 2 reach_error() VAL [a=1, b=0, iCheck={11:0}, iSet={10:0}, la=1, lb=0, param={0:0}, param={0:0}, param={0:0}, param={0:0}] - UnprovableResult [Line: 1255]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1261]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 195 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.4s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 214 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-17 15:00:49,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...