/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/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:32:52,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:32:52,438 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 15:32:52,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:32:52,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:32:52,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:32:52,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:32:52,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:32:52,473 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:32:52,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:32:52,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:32:52,478 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:32:52,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:32:52,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:32:52,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:32:52,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:32:52,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:32:52,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:32:52,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:32:52,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:32:52,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:32:52,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:32:52,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:32:52,482 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:32:52,482 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:32:52,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:52,483 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:32:52,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:32:52,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:32:52,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:32:52,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:32:52,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:32:52,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:32:52,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:32:52,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:32:52,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:32:52,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:32:52,748 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:32:52,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-17 15:32:53,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:32:54,149 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:32:54,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-17 15:32:54,161 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e2818b6f/a95e3a51742543a88536d4712bb1122e/FLAG09a8b8c6d [2023-11-17 15:32:54,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e2818b6f/a95e3a51742543a88536d4712bb1122e [2023-11-17 15:32:54,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:32:54,176 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:32:54,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:54,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:32:54,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:32:54,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519405da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54, skipping insertion in model container [2023-11-17 15:32:54,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,222 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:32:54,355 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-11-17 15:32:54,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:54,542 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:32:54,555 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_30-traces-oplus-vs-meet_true.i[1097,1110] [2023-11-17 15:32:54,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:32:54,636 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:32:54,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54 WrapperNode [2023-11-17 15:32:54,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:32:54,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:54,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:32:54,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:32:54,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,680 INFO L138 Inliner]: procedures = 163, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-11-17 15:32:54,680 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:32:54,681 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:32:54,681 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:32:54,681 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:32:54,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:32:54,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:32:54,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:32:54,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:32:54,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (1/1) ... [2023-11-17 15:32:54,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:32:54,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:32:54,734 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 15:32:54,777 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 15:32:54,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:32:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:32:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:32:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:32:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:32:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-17 15:32:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-17 15:32:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:32:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:32:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:32:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:32:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:32:54,793 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 15:32:54,964 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:32:54,967 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:32:55,218 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:32:55,253 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:32:55,253 INFO L307 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-17 15:32:55,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:55 BoogieIcfgContainer [2023-11-17 15:32:55,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:32:55,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:32:55,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:32:55,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:32:55,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:32:54" (1/3) ... [2023-11-17 15:32:55,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463685c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:55, skipping insertion in model container [2023-11-17 15:32:55,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:32:54" (2/3) ... [2023-11-17 15:32:55,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463685c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:32:55, skipping insertion in model container [2023-11-17 15:32:55,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:32:55" (3/3) ... [2023-11-17 15:32:55,263 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_30-traces-oplus-vs-meet_true.i [2023-11-17 15:32:55,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:32:55,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-17 15:32:55,280 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:32:55,319 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-17 15:32:55,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 85 transitions, 177 flow [2023-11-17 15:32:55,396 INFO L124 PetriNetUnfolderBase]: 2/84 cut-off events. [2023-11-17 15:32:55,397 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-17 15:32:55,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 2/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-11-17 15:32:55,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 85 transitions, 177 flow [2023-11-17 15:32:55,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 66 transitions, 135 flow [2023-11-17 15:32:55,408 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:32:55,419 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 66 transitions, 135 flow [2023-11-17 15:32:55,422 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 66 transitions, 135 flow [2023-11-17 15:32:55,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 135 flow [2023-11-17 15:32:55,436 INFO L124 PetriNetUnfolderBase]: 1/66 cut-off events. [2023-11-17 15:32:55,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:55,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-17 15:32:55,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 374 [2023-11-17 15:32:57,880 INFO L134 LiptonReduction]: Checked pairs total: 480 [2023-11-17 15:32:57,881 INFO L136 LiptonReduction]: Total number of compositions: 66 [2023-11-17 15:32:57,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:32:57,899 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;@2c1c6ab1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:32:57,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-17 15:32:57,901 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:32:57,901 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-17 15:32:57,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:57,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:57,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-17 15:32:57,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:57,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 335, now seen corresponding path program 1 times [2023-11-17 15:32:57,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:57,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533203651] [2023-11-17 15:32:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:58,007 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 15:32:58,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:58,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533203651] [2023-11-17 15:32:58,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533203651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:58,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:58,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-17 15:32:58,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188578379] [2023-11-17 15:32:58,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:58,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 15:32:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 15:32:58,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 15:32:58,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 151 [2023-11-17 15:32:58,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 9 transitions, 21 flow. Second operand has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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 15:32:58,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:58,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 151 [2023-11-17 15:32:58,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:58,077 INFO L124 PetriNetUnfolderBase]: 9/26 cut-off events. [2023-11-17 15:32:58,077 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:58,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 26 events. 9/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 9 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 48. Up to 27 conditions per place. [2023-11-17 15:32:58,078 INFO L140 encePairwiseOnDemand]: 150/151 looper letters, 8 selfloop transitions, 0 changer transitions 0/8 dead transitions. [2023-11-17 15:32:58,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 35 flow [2023-11-17 15:32:58,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 15:32:58,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-17 15:32:58,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 147 transitions. [2023-11-17 15:32:58,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4867549668874172 [2023-11-17 15:32:58,091 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 147 transitions. [2023-11-17 15:32:58,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 147 transitions. [2023-11-17 15:32:58,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:58,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 147 transitions. [2023-11-17 15:32:58,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 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 15:32:58,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 15:32:58,101 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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 15:32:58,103 INFO L175 Difference]: Start difference. First operand has 13 places, 9 transitions, 21 flow. Second operand 2 states and 147 transitions. [2023-11-17 15:32:58,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 35 flow [2023-11-17 15:32:58,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-17 15:32:58,106 INFO L231 Difference]: Finished difference. Result has 12 places, 8 transitions, 18 flow [2023-11-17 15:32:58,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=18, PETRI_PLACES=12, PETRI_TRANSITIONS=8} [2023-11-17 15:32:58,111 INFO L281 CegarLoopForPetriNet]: 13 programPoint places, -1 predicate places. [2023-11-17 15:32:58,112 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 8 transitions, 18 flow [2023-11-17 15:32:58,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 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 15:32:58,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:58,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-17 15:32:58,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:32:58,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:58,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:58,113 INFO L85 PathProgramCache]: Analyzing trace with hash 317675207, now seen corresponding path program 1 times [2023-11-17 15:32:58,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:58,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560650715] [2023-11-17 15:32:58,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:58,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:58,334 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 15:32:58,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:58,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560650715] [2023-11-17 15:32:58,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560650715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-17 15:32:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731965787] [2023-11-17 15:32:58,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:58,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:58,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 151 [2023-11-17 15:32:58,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 8 transitions, 18 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 15:32:58,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:58,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 151 [2023-11-17 15:32:58,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:58,359 INFO L124 PetriNetUnfolderBase]: 6/22 cut-off events. [2023-11-17 15:32:58,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-17 15:32:58,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 6/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 4 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 46. Up to 16 conditions per place. [2023-11-17 15:32:58,360 INFO L140 encePairwiseOnDemand]: 147/151 looper letters, 7 selfloop transitions, 3 changer transitions 0/10 dead transitions. [2023-11-17 15:32:58,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 10 transitions, 42 flow [2023-11-17 15:32:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2023-11-17 15:32:58,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4481236203090508 [2023-11-17 15:32:58,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 203 transitions. [2023-11-17 15:32:58,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 203 transitions. [2023-11-17 15:32:58,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:58,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 203 transitions. [2023-11-17 15:32:58,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 15:32:58,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 15:32:58,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 15:32:58,368 INFO L175 Difference]: Start difference. First operand has 12 places, 8 transitions, 18 flow. Second operand 3 states and 203 transitions. [2023-11-17 15:32:58,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 10 transitions, 42 flow [2023-11-17 15:32:58,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-17 15:32:58,369 INFO L231 Difference]: Finished difference. Result has 15 places, 8 transitions, 29 flow [2023-11-17 15:32:58,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=29, PETRI_PLACES=15, PETRI_TRANSITIONS=8} [2023-11-17 15:32:58,370 INFO L281 CegarLoopForPetriNet]: 13 programPoint places, 2 predicate places. [2023-11-17 15:32:58,370 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 8 transitions, 29 flow [2023-11-17 15:32:58,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 15:32:58,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:32:58,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-17 15:32:58,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 15:32:58,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-11-17 15:32:58,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:32:58,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1257997176, now seen corresponding path program 1 times [2023-11-17 15:32:58,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:32:58,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157222732] [2023-11-17 15:32:58,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:32:58,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:32:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 15:32:58,447 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 15:32:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 15:32:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157222732] [2023-11-17 15:32:58,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157222732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 15:32:58,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 15:32:58,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-17 15:32:58,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109546012] [2023-11-17 15:32:58,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 15:32:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-17 15:32:58,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 15:32:58,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-17 15:32:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-17 15:32:58,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 151 [2023-11-17 15:32:58,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 8 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 15:32:58,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-17 15:32:58,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 151 [2023-11-17 15:32:58,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-17 15:32:58,473 INFO L124 PetriNetUnfolderBase]: 3/16 cut-off events. [2023-11-17 15:32:58,473 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 15:32:58,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 16 events. 3/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 2 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 41. Up to 11 conditions per place. [2023-11-17 15:32:58,474 INFO L140 encePairwiseOnDemand]: 147/151 looper letters, 0 selfloop transitions, 0 changer transitions 9/9 dead transitions. [2023-11-17 15:32:58,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 9 transitions, 47 flow [2023-11-17 15:32:58,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-17 15:32:58,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-17 15:32:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2023-11-17 15:32:58,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44150110375275936 [2023-11-17 15:32:58,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 200 transitions. [2023-11-17 15:32:58,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 200 transitions. [2023-11-17 15:32:58,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-17 15:32:58,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 200 transitions. [2023-11-17 15:32:58,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 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 15:32:58,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 15:32:58,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 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 15:32:58,479 INFO L175 Difference]: Start difference. First operand has 15 places, 8 transitions, 29 flow. Second operand 3 states and 200 transitions. [2023-11-17 15:32:58,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 9 transitions, 47 flow [2023-11-17 15:32:58,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 9 transitions, 38 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-17 15:32:58,480 INFO L231 Difference]: Finished difference. Result has 13 places, 0 transitions, 0 flow [2023-11-17 15:32:58,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=13, PETRI_TRANSITIONS=0} [2023-11-17 15:32:58,481 INFO L281 CegarLoopForPetriNet]: 13 programPoint places, 0 predicate places. [2023-11-17 15:32:58,481 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 0 transitions, 0 flow [2023-11-17 15:32:58,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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 15:32:58,483 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-11-17 15:32:58,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2023-11-17 15:32:58,484 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-11-17 15:32:58,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 15:32:58,484 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-17 15:32:58,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-17 15:32:58,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-17 15:32:58,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:32:58 BasicIcfg [2023-11-17 15:32:58,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-17 15:32:58,492 INFO L158 Benchmark]: Toolchain (without parser) took 4315.18ms. Allocated memory is still 282.1MB. Free memory was 234.5MB in the beginning and 122.5MB in the end (delta: 111.9MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,492 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 197.1MB. Free memory was 153.1MB in the beginning and 153.0MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:32:58,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.42ms. Allocated memory is still 282.1MB. Free memory was 234.1MB in the beginning and 214.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.63ms. Allocated memory is still 282.1MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,493 INFO L158 Benchmark]: Boogie Preprocessor took 22.62ms. Allocated memory is still 282.1MB. Free memory was 212.8MB in the beginning and 211.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,494 INFO L158 Benchmark]: RCFGBuilder took 551.02ms. Allocated memory is still 282.1MB. Free memory was 211.4MB in the beginning and 195.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,494 INFO L158 Benchmark]: TraceAbstraction took 3234.12ms. Allocated memory is still 282.1MB. Free memory was 195.0MB in the beginning and 122.5MB in the end (delta: 72.4MB). Peak memory consumption was 73.1MB. Max. memory is 8.0GB. [2023-11-17 15:32:58,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 197.1MB. Free memory was 153.1MB in the beginning and 153.0MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 459.42ms. Allocated memory is still 282.1MB. Free memory was 234.1MB in the beginning and 214.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.63ms. Allocated memory is still 282.1MB. Free memory was 214.9MB in the beginning and 212.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.62ms. Allocated memory is still 282.1MB. Free memory was 212.8MB in the beginning and 211.4MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 551.02ms. Allocated memory is still 282.1MB. Free memory was 211.4MB in the beginning and 195.7MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3234.12ms. Allocated memory is still 282.1MB. Free memory was 195.0MB in the beginning and 122.5MB in the end (delta: 72.4MB). Peak memory consumption was 73.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 69 PlacesBefore, 13 PlacesAfterwards, 66 TransitionsBefore, 9 TransitionsAfterwards, 374 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 480 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 322, independent: 271, independent conditional: 0, independent unconditional: 271, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 256, independent: 235, independent conditional: 0, independent unconditional: 235, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 256, independent: 224, independent conditional: 0, independent unconditional: 224, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 101, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 322, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 256, unknown conditional: 0, unknown unconditional: 256] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 with 1 thread instances CFG has 3 procedures, 103 locations, 3 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: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-17 15:32:58,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...