/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:35:42,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:35:42,778 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-VariableLbe.epf [2023-08-26 08:35:42,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:35:42,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:35:42,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:35:42,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:35:42,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:35:42,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:35:42,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:35:42,817 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:35:42,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:35:42,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:35:42,818 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:35:42,818 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:35:42,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:35:42,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:35:42,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:35:42,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:35:42,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:35:42,820 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:35:42,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:35:42,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:35:42,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:35:42,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:35:42,822 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:35:42,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:35:42,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:35:42,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:35:42,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:35:42,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:35:42,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:35:42,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:35:42,824 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:35:42,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:35:42,824 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:35:43,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:35:43,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:35:43,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:35:43,166 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:35:43,167 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:35:43,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-26 08:35:44,310 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:35:44,511 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:35:44,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-26 08:35:44,518 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd7279f64/be67595c4cfc40068306c0dd5ca63daa/FLAG23534312e [2023-08-26 08:35:44,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd7279f64/be67595c4cfc40068306c0dd5ca63daa [2023-08-26 08:35:44,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:35:44,530 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:35:44,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:35:44,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:35:44,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:35:44,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375058be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44, skipping insertion in model container [2023-08-26 08:35:44,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,557 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:35:44,706 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:35:44,716 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:35:44,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:35:44,790 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:35:44,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44 WrapperNode [2023-08-26 08:35:44,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:35:44,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:35:44,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:35:44,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:35:44,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,869 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 17, calls inlined = 25, statements flattened = 470 [2023-08-26 08:35:44,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:35:44,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:35:44,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:35:44,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:35:44,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:35:44,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:35:44,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:35:44,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:35:44,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (1/1) ... [2023-08-26 08:35:44,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:35:44,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:35:44,966 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) [2023-08-26 08:35:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:35:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:35:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:35:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:35:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:35:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:35:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:35:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:35:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 08:35:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 08:35:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:35:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:35:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:35:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:35:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:35:45,007 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:35:44,997 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 [2023-08-26 08:35:45,161 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:35:45,163 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:35:45,806 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:35:45,815 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:35:45,815 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-26 08:35:45,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:35:45 BoogieIcfgContainer [2023-08-26 08:35:45,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:35:45,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:35:45,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:35:45,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:35:45,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:35:44" (1/3) ... [2023-08-26 08:35:45,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d4612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:35:45, skipping insertion in model container [2023-08-26 08:35:45,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:35:44" (2/3) ... [2023-08-26 08:35:45,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@153d4612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:35:45, skipping insertion in model container [2023-08-26 08:35:45,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:35:45" (3/3) ... [2023-08-26 08:35:45,823 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-26 08:35:45,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:35:45,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2023-08-26 08:35:45,838 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:35:45,942 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-26 08:35:45,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 563 transitions, 1150 flow [2023-08-26 08:35:46,217 INFO L124 PetriNetUnfolderBase]: 33/560 cut-off events. [2023-08-26 08:35:46,218 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:35:46,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 560 events. 33/560 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1255 event pairs, 0 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 401. Up to 2 conditions per place. [2023-08-26 08:35:46,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 540 places, 563 transitions, 1150 flow [2023-08-26 08:35:46,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 526 places, 549 transitions, 1116 flow [2023-08-26 08:35:46,250 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:35:46,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 526 places, 549 transitions, 1116 flow [2023-08-26 08:35:46,269 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 526 places, 549 transitions, 1116 flow [2023-08-26 08:35:46,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 549 transitions, 1116 flow [2023-08-26 08:35:46,381 INFO L124 PetriNetUnfolderBase]: 33/549 cut-off events. [2023-08-26 08:35:46,381 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-26 08:35:46,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 549 events. 33/549 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1253 event pairs, 0 based on Foata normal form. 0/468 useless extension candidates. Maximal degree in co-relation 401. Up to 2 conditions per place. [2023-08-26 08:35:46,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 67830 [2023-08-26 08:35:58,286 INFO L134 LiptonReduction]: Checked pairs total: 215680 [2023-08-26 08:35:58,286 INFO L136 LiptonReduction]: Total number of compositions: 570 [2023-08-26 08:35:58,309 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:35:58,316 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=LoopsAndPotentialCycles, 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;@ca3775a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:35:58,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2023-08-26 08:35:58,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:35:58,319 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-08-26 08:35:58,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:35:58,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:35:58,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-26 08:35:58,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:35:58,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:35:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash 68890, now seen corresponding path program 1 times [2023-08-26 08:35:58,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:35:58,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777698606] [2023-08-26 08:35:58,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:35:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:35:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:35:58,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:35:58,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:35:58,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777698606] [2023-08-26 08:35:58,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777698606] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:35:58,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:35:58,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 08:35:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821397386] [2023-08-26 08:35:58,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:35:58,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:35:58,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:35:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:35:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:35:58,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 1133 [2023-08-26 08:35:58,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 298 flow. Second operand has 2 states, 2 states have (on average 535.0) internal successors, (1070), 2 states have internal predecessors, (1070), 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) [2023-08-26 08:35:58,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:35:58,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 1133 [2023-08-26 08:35:58,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:35:59,136 INFO L124 PetriNetUnfolderBase]: 1808/5292 cut-off events. [2023-08-26 08:35:59,136 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2023-08-26 08:35:59,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8026 conditions, 5292 events. 1808/5292 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49399 event pairs, 1485 based on Foata normal form. 148/4401 useless extension candidates. Maximal degree in co-relation 6878. Up to 2587 conditions per place. [2023-08-26 08:35:59,176 INFO L140 encePairwiseOnDemand]: 1106/1133 looper letters, 39 selfloop transitions, 0 changer transitions 0/113 dead transitions. [2023-08-26 08:35:59,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 113 transitions, 322 flow [2023-08-26 08:35:59,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:35:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:35:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1134 transitions. [2023-08-26 08:35:59,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.500441306266549 [2023-08-26 08:35:59,192 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1134 transitions. [2023-08-26 08:35:59,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1134 transitions. [2023-08-26 08:35:59,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:35:59,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1134 transitions. [2023-08-26 08:35:59,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 567.0) internal successors, (1134), 2 states have internal predecessors, (1134), 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) [2023-08-26 08:35:59,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1133.0) internal successors, (3399), 3 states have internal predecessors, (3399), 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) [2023-08-26 08:35:59,212 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1133.0) internal successors, (3399), 3 states have internal predecessors, (3399), 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) [2023-08-26 08:35:59,213 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 298 flow. Second operand 2 states and 1134 transitions. [2023-08-26 08:35:59,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 113 transitions, 322 flow [2023-08-26 08:35:59,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 113 transitions, 310 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 08:35:59,222 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 232 flow [2023-08-26 08:35:59,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=232, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2023-08-26 08:35:59,226 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -32 predicate places. [2023-08-26 08:35:59,227 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 232 flow [2023-08-26 08:35:59,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 535.0) internal successors, (1070), 2 states have internal predecessors, (1070), 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) [2023-08-26 08:35:59,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:35:59,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:35:59,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:35:59,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:35:59,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:35:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1879016999, now seen corresponding path program 1 times [2023-08-26 08:35:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:35:59,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527074242] [2023-08-26 08:35:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:35:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:35:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:35:59,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:35:59,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:35:59,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527074242] [2023-08-26 08:35:59,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527074242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:35:59,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:35:59,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:35:59,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075478114] [2023-08-26 08:35:59,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:35:59,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:35:59,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:35:59,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:35:59,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:35:59,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-26 08:35:59,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 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) [2023-08-26 08:35:59,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:35:59,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-26 08:35:59,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:00,005 INFO L124 PetriNetUnfolderBase]: 1808/5295 cut-off events. [2023-08-26 08:36:00,006 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-08-26 08:36:00,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7930 conditions, 5295 events. 1808/5295 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 49426 event pairs, 1485 based on Foata normal form. 0/4256 useless extension candidates. Maximal degree in co-relation 7927. Up to 2587 conditions per place. [2023-08-26 08:36:00,056 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 36 selfloop transitions, 6 changer transitions 0/116 dead transitions. [2023-08-26 08:36:00,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 322 flow [2023-08-26 08:36:00,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1485 transitions. [2023-08-26 08:36:00,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4368932038834951 [2023-08-26 08:36:00,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1485 transitions. [2023-08-26 08:36:00,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1485 transitions. [2023-08-26 08:36:00,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:00,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1485 transitions. [2023-08-26 08:36:00,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 495.0) internal successors, (1485), 3 states have internal predecessors, (1485), 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) [2023-08-26 08:36:00,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:00,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:00,078 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 232 flow. Second operand 3 states and 1485 transitions. [2023-08-26 08:36:00,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 322 flow [2023-08-26 08:36:00,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 116 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:00,082 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 264 flow [2023-08-26 08:36:00,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2023-08-26 08:36:00,083 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2023-08-26 08:36:00,083 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 264 flow [2023-08-26 08:36:00,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 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) [2023-08-26 08:36:00,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:00,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:00,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:36:00,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:00,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:00,090 INFO L85 PathProgramCache]: Analyzing trace with hash -641641421, now seen corresponding path program 1 times [2023-08-26 08:36:00,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:00,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186235688] [2023-08-26 08:36:00,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:00,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:36:00,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:00,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186235688] [2023-08-26 08:36:00,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186235688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:00,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:00,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:36:00,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724179791] [2023-08-26 08:36:00,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:00,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:36:00,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:00,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:36:00,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:36:00,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:36:00,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2023-08-26 08:36:00,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:00,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:36:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:00,782 INFO L124 PetriNetUnfolderBase]: 2310/6346 cut-off events. [2023-08-26 08:36:00,782 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2023-08-26 08:36:00,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9713 conditions, 6346 events. 2310/6346 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 58887 event pairs, 1347 based on Foata normal form. 0/5207 useless extension candidates. Maximal degree in co-relation 9708. Up to 3244 conditions per place. [2023-08-26 08:36:00,824 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 55 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2023-08-26 08:36:00,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 127 transitions, 402 flow [2023-08-26 08:36:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:00,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1631 transitions. [2023-08-26 08:36:00,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47984701382759637 [2023-08-26 08:36:00,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1631 transitions. [2023-08-26 08:36:00,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1631 transitions. [2023-08-26 08:36:00,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:00,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1631 transitions. [2023-08-26 08:36:00,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 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) [2023-08-26 08:36:00,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:00,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:00,841 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 264 flow. Second operand 3 states and 1631 transitions. [2023-08-26 08:36:00,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 127 transitions, 402 flow [2023-08-26 08:36:00,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 127 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:36:00,844 INFO L231 Difference]: Finished difference. Result has 115 places, 116 transitions, 268 flow [2023-08-26 08:36:00,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=115, PETRI_TRANSITIONS=116} [2023-08-26 08:36:00,845 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2023-08-26 08:36:00,845 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 116 transitions, 268 flow [2023-08-26 08:36:00,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.3333333333334) internal successors, (1585), 3 states have internal predecessors, (1585), 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) [2023-08-26 08:36:00,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:00,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:00,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:36:00,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:00,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1858517325, now seen corresponding path program 1 times [2023-08-26 08:36:00,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:00,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813304118] [2023-08-26 08:36:00,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:00,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:36:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:00,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813304118] [2023-08-26 08:36:00,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813304118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:00,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:00,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:36:00,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263851344] [2023-08-26 08:36:00,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:00,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:36:00,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:00,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:36:00,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:36:00,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:36:00,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 116 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 528.6666666666666) internal successors, (1586), 3 states have internal predecessors, (1586), 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) [2023-08-26 08:36:00,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:00,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:36:00,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:01,545 INFO L124 PetriNetUnfolderBase]: 2266/7286 cut-off events. [2023-08-26 08:36:01,545 INFO L125 PetriNetUnfolderBase]: For 38/182 co-relation queries the response was YES. [2023-08-26 08:36:01,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10625 conditions, 7286 events. 2266/7286 cut-off events. For 38/182 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 75818 event pairs, 480 based on Foata normal form. 2/6044 useless extension candidates. Maximal degree in co-relation 10620. Up to 3158 conditions per place. [2023-08-26 08:36:01,592 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 57 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-26 08:36:01,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 130 transitions, 416 flow [2023-08-26 08:36:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:01,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1633 transitions. [2023-08-26 08:36:01,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480435422182995 [2023-08-26 08:36:01,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1633 transitions. [2023-08-26 08:36:01,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1633 transitions. [2023-08-26 08:36:01,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:01,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1633 transitions. [2023-08-26 08:36:01,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 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) [2023-08-26 08:36:01,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:01,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:01,610 INFO L175 Difference]: Start difference. First operand has 115 places, 116 transitions, 268 flow. Second operand 3 states and 1633 transitions. [2023-08-26 08:36:01,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 130 transitions, 416 flow [2023-08-26 08:36:01,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 130 transitions, 416 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:01,612 INFO L231 Difference]: Finished difference. Result has 116 places, 116 transitions, 278 flow [2023-08-26 08:36:01,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=116, PETRI_TRANSITIONS=116} [2023-08-26 08:36:01,613 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -28 predicate places. [2023-08-26 08:36:01,614 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 116 transitions, 278 flow [2023-08-26 08:36:01,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 528.6666666666666) internal successors, (1586), 3 states have internal predecessors, (1586), 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) [2023-08-26 08:36:01,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:01,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:01,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:36:01,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:01,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:01,615 INFO L85 PathProgramCache]: Analyzing trace with hash 974817446, now seen corresponding path program 1 times [2023-08-26 08:36:01,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:01,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092749020] [2023-08-26 08:36:01,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:01,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:36:01,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:01,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092749020] [2023-08-26 08:36:01,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092749020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:01,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:01,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:36:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278444489] [2023-08-26 08:36:01,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:01,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:36:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:36:01,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:36:01,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:36:01,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 116 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 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) [2023-08-26 08:36:01,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:01,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:36:01,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:02,204 INFO L124 PetriNetUnfolderBase]: 2088/5826 cut-off events. [2023-08-26 08:36:02,204 INFO L125 PetriNetUnfolderBase]: For 192/288 co-relation queries the response was YES. [2023-08-26 08:36:02,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9094 conditions, 5826 events. 2088/5826 cut-off events. For 192/288 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 53668 event pairs, 445 based on Foata normal form. 2/4695 useless extension candidates. Maximal degree in co-relation 9088. Up to 2738 conditions per place. [2023-08-26 08:36:02,242 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 57 selfloop transitions, 2 changer transitions 0/130 dead transitions. [2023-08-26 08:36:02,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 130 transitions, 431 flow [2023-08-26 08:36:02,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1631 transitions. [2023-08-26 08:36:02,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47984701382759637 [2023-08-26 08:36:02,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1631 transitions. [2023-08-26 08:36:02,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1631 transitions. [2023-08-26 08:36:02,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:02,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1631 transitions. [2023-08-26 08:36:02,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 543.6666666666666) internal successors, (1631), 3 states have internal predecessors, (1631), 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) [2023-08-26 08:36:02,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:02,258 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:02,259 INFO L175 Difference]: Start difference. First operand has 116 places, 116 transitions, 278 flow. Second operand 3 states and 1631 transitions. [2023-08-26 08:36:02,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 130 transitions, 431 flow [2023-08-26 08:36:02,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 130 transitions, 431 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:02,261 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 288 flow [2023-08-26 08:36:02,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2023-08-26 08:36:02,262 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -27 predicate places. [2023-08-26 08:36:02,262 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 288 flow [2023-08-26 08:36:02,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 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) [2023-08-26 08:36:02,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:02,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:02,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:36:02,264 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:02,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash -670455165, now seen corresponding path program 1 times [2023-08-26 08:36:02,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:02,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817704205] [2023-08-26 08:36:02,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:02,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:36:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:02,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817704205] [2023-08-26 08:36:02,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817704205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:02,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:02,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:36:02,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729332406] [2023-08-26 08:36:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:02,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:36:02,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:02,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:36:02,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:36:02,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:36:02,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 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) [2023-08-26 08:36:02,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:02,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:36:02,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:03,065 INFO L124 PetriNetUnfolderBase]: 3405/8799 cut-off events. [2023-08-26 08:36:03,066 INFO L125 PetriNetUnfolderBase]: For 622/769 co-relation queries the response was YES. [2023-08-26 08:36:03,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14581 conditions, 8799 events. 3405/8799 cut-off events. For 622/769 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 82850 event pairs, 924 based on Foata normal form. 4/7329 useless extension candidates. Maximal degree in co-relation 14574. Up to 3424 conditions per place. [2023-08-26 08:36:03,127 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 75 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-08-26 08:36:03,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 144 transitions, 518 flow [2023-08-26 08:36:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:03,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1645 transitions. [2023-08-26 08:36:03,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4839658723153869 [2023-08-26 08:36:03,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1645 transitions. [2023-08-26 08:36:03,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1645 transitions. [2023-08-26 08:36:03,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:03,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1645 transitions. [2023-08-26 08:36:03,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 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) [2023-08-26 08:36:03,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:03,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:03,142 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 288 flow. Second operand 3 states and 1645 transitions. [2023-08-26 08:36:03,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 144 transitions, 518 flow [2023-08-26 08:36:03,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 144 transitions, 518 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:03,145 INFO L231 Difference]: Finished difference. Result has 118 places, 116 transitions, 298 flow [2023-08-26 08:36:03,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=118, PETRI_TRANSITIONS=116} [2023-08-26 08:36:03,146 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -26 predicate places. [2023-08-26 08:36:03,146 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 116 transitions, 298 flow [2023-08-26 08:36:03,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 529.3333333333334) internal successors, (1588), 3 states have internal predecessors, (1588), 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) [2023-08-26 08:36:03,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:03,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:03,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:36:03,147 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:03,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:03,148 INFO L85 PathProgramCache]: Analyzing trace with hash 497370964, now seen corresponding path program 1 times [2023-08-26 08:36:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:03,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918216475] [2023-08-26 08:36:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-26 08:36:03,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:03,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918216475] [2023-08-26 08:36:03,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918216475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:03,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:03,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:36:03,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639661977] [2023-08-26 08:36:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:03,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:36:03,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:03,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:36:03,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:36:03,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:36:03,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 116 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 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) [2023-08-26 08:36:03,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:03,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:36:03,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:04,278 INFO L124 PetriNetUnfolderBase]: 5141/14131 cut-off events. [2023-08-26 08:36:04,278 INFO L125 PetriNetUnfolderBase]: For 1191/1330 co-relation queries the response was YES. [2023-08-26 08:36:04,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23617 conditions, 14131 events. 5141/14131 cut-off events. For 1191/1330 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 146112 event pairs, 1618 based on Foata normal form. 2/12720 useless extension candidates. Maximal degree in co-relation 23609. Up to 4658 conditions per place. [2023-08-26 08:36:04,352 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 82 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2023-08-26 08:36:04,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 148 transitions, 557 flow [2023-08-26 08:36:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:36:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:36:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1649 transitions. [2023-08-26 08:36:04,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4851426890261842 [2023-08-26 08:36:04,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1649 transitions. [2023-08-26 08:36:04,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1649 transitions. [2023-08-26 08:36:04,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:04,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1649 transitions. [2023-08-26 08:36:04,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 549.6666666666666) internal successors, (1649), 3 states have internal predecessors, (1649), 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) [2023-08-26 08:36:04,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:04,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:36:04,366 INFO L175 Difference]: Start difference. First operand has 118 places, 116 transitions, 298 flow. Second operand 3 states and 1649 transitions. [2023-08-26 08:36:04,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 148 transitions, 557 flow [2023-08-26 08:36:04,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 148 transitions, 557 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:04,369 INFO L231 Difference]: Finished difference. Result has 119 places, 116 transitions, 308 flow [2023-08-26 08:36:04,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=119, PETRI_TRANSITIONS=116} [2023-08-26 08:36:04,370 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -25 predicate places. [2023-08-26 08:36:04,370 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 116 transitions, 308 flow [2023-08-26 08:36:04,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.0) internal successors, (1590), 3 states have internal predecessors, (1590), 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) [2023-08-26 08:36:04,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:04,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:04,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:36:04,372 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:04,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1261322180, now seen corresponding path program 1 times [2023-08-26 08:36:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:04,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457213622] [2023-08-26 08:36:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:04,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:36:04,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:04,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457213622] [2023-08-26 08:36:04,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457213622] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:36:04,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579874959] [2023-08-26 08:36:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:04,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:36:04,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:36:04,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:36:04,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:36:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:04,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 08:36:04,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:36:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:36:04,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:36:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:36:04,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579874959] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:36:04,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:36:04,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-08-26 08:36:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408923668] [2023-08-26 08:36:04,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:36:04,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 08:36:04,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 08:36:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:36:04,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-26 08:36:04,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 116 transitions, 308 flow. Second operand has 8 states, 8 states have (on average 482.375) internal successors, (3859), 8 states have internal predecessors, (3859), 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) [2023-08-26 08:36:04,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:04,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-26 08:36:04,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:05,840 INFO L124 PetriNetUnfolderBase]: 4102/11406 cut-off events. [2023-08-26 08:36:05,841 INFO L125 PetriNetUnfolderBase]: For 1314/1481 co-relation queries the response was YES. [2023-08-26 08:36:05,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19824 conditions, 11406 events. 4102/11406 cut-off events. For 1314/1481 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 110935 event pairs, 3179 based on Foata normal form. 0/10424 useless extension candidates. Maximal degree in co-relation 19815. Up to 5939 conditions per place. [2023-08-26 08:36:05,905 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 42 selfloop transitions, 15 changer transitions 0/125 dead transitions. [2023-08-26 08:36:05,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 125 transitions, 458 flow [2023-08-26 08:36:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:36:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:36:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2940 transitions. [2023-08-26 08:36:05,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324801412180053 [2023-08-26 08:36:05,913 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2940 transitions. [2023-08-26 08:36:05,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2940 transitions. [2023-08-26 08:36:05,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:05,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2940 transitions. [2023-08-26 08:36:05,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 490.0) internal successors, (2940), 6 states have internal predecessors, (2940), 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) [2023-08-26 08:36:05,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:05,930 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:05,930 INFO L175 Difference]: Start difference. First operand has 119 places, 116 transitions, 308 flow. Second operand 6 states and 2940 transitions. [2023-08-26 08:36:05,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 125 transitions, 458 flow [2023-08-26 08:36:05,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 125 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:36:05,934 INFO L231 Difference]: Finished difference. Result has 127 places, 125 transitions, 404 flow [2023-08-26 08:36:05,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=127, PETRI_TRANSITIONS=125} [2023-08-26 08:36:05,934 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-26 08:36:05,935 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 404 flow [2023-08-26 08:36:05,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 482.375) internal successors, (3859), 8 states have internal predecessors, (3859), 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) [2023-08-26 08:36:05,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:05,936 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:05,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 08:36:06,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:36:06,143 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:06,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:06,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1654833622, now seen corresponding path program 2 times [2023-08-26 08:36:06,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:06,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660271924] [2023-08-26 08:36:06,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:06,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:36:06,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660271924] [2023-08-26 08:36:06,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660271924] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:36:06,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083021951] [2023-08-26 08:36:06,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:36:06,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:36:06,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:36:06,386 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:36:06,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 08:36:06,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:36:06,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:36:06,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-26 08:36:06,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:36:06,600 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 08:36:06,625 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-26 08:36:06,654 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:36:06,654 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 08:36:06,696 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:36:06,697 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 08:36:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:36:06,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:36:06,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083021951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:06,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:36:06,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-08-26 08:36:06,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669683180] [2023-08-26 08:36:06,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:06,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 08:36:06,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:06,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 08:36:06,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-26 08:36:06,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-26 08:36:06,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 404 flow. Second operand has 7 states, 7 states have (on average 458.42857142857144) internal successors, (3209), 7 states have internal predecessors, (3209), 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) [2023-08-26 08:36:06,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:06,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-26 08:36:06,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:21,053 INFO L124 PetriNetUnfolderBase]: 123369/173917 cut-off events. [2023-08-26 08:36:21,053 INFO L125 PetriNetUnfolderBase]: For 17101/17101 co-relation queries the response was YES. [2023-08-26 08:36:21,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367408 conditions, 173917 events. 123369/173917 cut-off events. For 17101/17101 co-relation queries the response was YES. Maximal size of possible extension queue 2976. Compared 1283473 event pairs, 12756 based on Foata normal form. 0/158314 useless extension candidates. Maximal degree in co-relation 367395. Up to 65398 conditions per place. [2023-08-26 08:36:22,586 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 325 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2023-08-26 08:36:22,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 352 transitions, 1638 flow [2023-08-26 08:36:22,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:36:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:36:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3481 transitions. [2023-08-26 08:36:22,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43891060395914766 [2023-08-26 08:36:22,595 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3481 transitions. [2023-08-26 08:36:22,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3481 transitions. [2023-08-26 08:36:22,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:22,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3481 transitions. [2023-08-26 08:36:22,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 497.2857142857143) internal successors, (3481), 7 states have internal predecessors, (3481), 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) [2023-08-26 08:36:22,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:36:22,613 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:36:22,613 INFO L175 Difference]: Start difference. First operand has 127 places, 125 transitions, 404 flow. Second operand 7 states and 3481 transitions. [2023-08-26 08:36:22,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 352 transitions, 1638 flow [2023-08-26 08:36:22,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 352 transitions, 1614 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-26 08:36:22,632 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 388 flow [2023-08-26 08:36:22,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=388, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-26 08:36:22,633 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-26 08:36:22,633 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 388 flow [2023-08-26 08:36:22,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 458.42857142857144) internal successors, (3209), 7 states have internal predecessors, (3209), 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) [2023-08-26 08:36:22,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:22,634 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:22,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 08:36:22,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-26 08:36:22,843 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:22,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1004639730, now seen corresponding path program 1 times [2023-08-26 08:36:22,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:22,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893961926] [2023-08-26 08:36:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:36:23,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893961926] [2023-08-26 08:36:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893961926] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:36:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129281112] [2023-08-26 08:36:23,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:36:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:36:23,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:36:23,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 08:36:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:23,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-26 08:36:23,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:36:23,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:36:23,342 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:36:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:36:23,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129281112] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:36:23,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:36:23,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-08-26 08:36:23,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260490220] [2023-08-26 08:36:23,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:36:23,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-26 08:36:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-26 08:36:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-26 08:36:23,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 1133 [2023-08-26 08:36:23,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 388 flow. Second operand has 17 states, 17 states have (on average 481.5882352941176) internal successors, (8187), 17 states have internal predecessors, (8187), 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) [2023-08-26 08:36:23,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:23,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 1133 [2023-08-26 08:36:23,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:24,536 INFO L124 PetriNetUnfolderBase]: 4102/11391 cut-off events. [2023-08-26 08:36:24,536 INFO L125 PetriNetUnfolderBase]: For 2008/2175 co-relation queries the response was YES. [2023-08-26 08:36:24,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20590 conditions, 11391 events. 4102/11391 cut-off events. For 2008/2175 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 110674 event pairs, 3179 based on Foata normal form. 1/10429 useless extension candidates. Maximal degree in co-relation 20576. Up to 5939 conditions per place. [2023-08-26 08:36:24,597 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 42 selfloop transitions, 18 changer transitions 0/127 dead transitions. [2023-08-26 08:36:24,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 127 transitions, 526 flow [2023-08-26 08:36:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:36:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:36:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3417 transitions. [2023-08-26 08:36:24,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43084100365653766 [2023-08-26 08:36:24,605 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3417 transitions. [2023-08-26 08:36:24,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3417 transitions. [2023-08-26 08:36:24,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:24,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3417 transitions. [2023-08-26 08:36:24,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 488.14285714285717) internal successors, (3417), 7 states have internal predecessors, (3417), 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) [2023-08-26 08:36:24,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:36:24,621 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:36:24,621 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 388 flow. Second operand 7 states and 3417 transitions. [2023-08-26 08:36:24,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 127 transitions, 526 flow [2023-08-26 08:36:24,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 127 transitions, 517 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:36:24,626 INFO L231 Difference]: Finished difference. Result has 133 places, 127 transitions, 447 flow [2023-08-26 08:36:24,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=447, PETRI_PLACES=133, PETRI_TRANSITIONS=127} [2023-08-26 08:36:24,627 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-26 08:36:24,627 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 127 transitions, 447 flow [2023-08-26 08:36:24,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 481.5882352941176) internal successors, (8187), 17 states have internal predecessors, (8187), 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) [2023-08-26 08:36:24,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:24,629 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:24,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 08:36:24,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:36:24,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:24,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:24,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1589233716, now seen corresponding path program 2 times [2023-08-26 08:36:24,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:24,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089026699] [2023-08-26 08:36:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:24,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:36:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:25,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089026699] [2023-08-26 08:36:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089026699] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:25,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:36:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550043545] [2023-08-26 08:36:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:25,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:36:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:25,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:36:25,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:36:25,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:36:25,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 127 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 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) [2023-08-26 08:36:25,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:25,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:36:25,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:40,478 INFO L124 PetriNetUnfolderBase]: 125215/181840 cut-off events. [2023-08-26 08:36:40,478 INFO L125 PetriNetUnfolderBase]: For 17192/17192 co-relation queries the response was YES. [2023-08-26 08:36:41,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387389 conditions, 181840 events. 125215/181840 cut-off events. For 17192/17192 co-relation queries the response was YES. Maximal size of possible extension queue 2864. Compared 1362339 event pairs, 51820 based on Foata normal form. 0/167948 useless extension candidates. Maximal degree in co-relation 387374. Up to 82880 conditions per place. [2023-08-26 08:36:42,032 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 285 selfloop transitions, 5 changer transitions 0/310 dead transitions. [2023-08-26 08:36:42,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 310 transitions, 1473 flow [2023-08-26 08:36:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:36:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:36:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2970 transitions. [2023-08-26 08:36:42,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4368932038834951 [2023-08-26 08:36:42,039 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2970 transitions. [2023-08-26 08:36:42,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2970 transitions. [2023-08-26 08:36:42,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:42,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2970 transitions. [2023-08-26 08:36:42,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 495.0) internal successors, (2970), 6 states have internal predecessors, (2970), 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) [2023-08-26 08:36:42,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:42,054 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:42,054 INFO L175 Difference]: Start difference. First operand has 133 places, 127 transitions, 447 flow. Second operand 6 states and 2970 transitions. [2023-08-26 08:36:42,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 310 transitions, 1473 flow [2023-08-26 08:36:42,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 310 transitions, 1437 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-26 08:36:42,062 INFO L231 Difference]: Finished difference. Result has 133 places, 126 transitions, 419 flow [2023-08-26 08:36:42,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=419, PETRI_PLACES=133, PETRI_TRANSITIONS=126} [2023-08-26 08:36:42,063 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-26 08:36:42,063 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 126 transitions, 419 flow [2023-08-26 08:36:42,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 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) [2023-08-26 08:36:42,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:42,064 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:42,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:36:42,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:42,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:42,065 INFO L85 PathProgramCache]: Analyzing trace with hash 918450045, now seen corresponding path program 1 times [2023-08-26 08:36:42,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:42,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861283980] [2023-08-26 08:36:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:42,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:42,618 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:36:42,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:42,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861283980] [2023-08-26 08:36:42,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861283980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:42,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:42,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:36:42,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175728918] [2023-08-26 08:36:42,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:42,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:36:42,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:42,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:36:42,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:36:42,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:36:42,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 126 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 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) [2023-08-26 08:36:42,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:42,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:36:42,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:36:57,876 INFO L124 PetriNetUnfolderBase]: 127326/187131 cut-off events. [2023-08-26 08:36:57,876 INFO L125 PetriNetUnfolderBase]: For 26953/26953 co-relation queries the response was YES. [2023-08-26 08:36:58,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 406189 conditions, 187131 events. 127326/187131 cut-off events. For 26953/26953 co-relation queries the response was YES. Maximal size of possible extension queue 2927. Compared 1428324 event pairs, 51374 based on Foata normal form. 0/175796 useless extension candidates. Maximal degree in co-relation 406173. Up to 84702 conditions per place. [2023-08-26 08:36:59,289 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 301 selfloop transitions, 5 changer transitions 0/325 dead transitions. [2023-08-26 08:36:59,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 325 transitions, 1537 flow [2023-08-26 08:36:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:36:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:36:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2990 transitions. [2023-08-26 08:36:59,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43983524566048837 [2023-08-26 08:36:59,296 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2990 transitions. [2023-08-26 08:36:59,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2990 transitions. [2023-08-26 08:36:59,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:36:59,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2990 transitions. [2023-08-26 08:36:59,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 498.3333333333333) internal successors, (2990), 6 states have internal predecessors, (2990), 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) [2023-08-26 08:36:59,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:59,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:36:59,309 INFO L175 Difference]: Start difference. First operand has 133 places, 126 transitions, 419 flow. Second operand 6 states and 2990 transitions. [2023-08-26 08:36:59,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 325 transitions, 1537 flow [2023-08-26 08:36:59,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 325 transitions, 1487 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:36:59,346 INFO L231 Difference]: Finished difference. Result has 132 places, 125 transitions, 417 flow [2023-08-26 08:36:59,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=132, PETRI_TRANSITIONS=125} [2023-08-26 08:36:59,346 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -12 predicate places. [2023-08-26 08:36:59,346 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 125 transitions, 417 flow [2023-08-26 08:36:59,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 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) [2023-08-26 08:36:59,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:36:59,347 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:36:59,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:36:59,347 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:36:59,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:36:59,348 INFO L85 PathProgramCache]: Analyzing trace with hash -417483556, now seen corresponding path program 1 times [2023-08-26 08:36:59,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:36:59,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621616721] [2023-08-26 08:36:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:36:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:36:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:36:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:36:59,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:36:59,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621616721] [2023-08-26 08:36:59,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621616721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:36:59,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:36:59,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:36:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810181785] [2023-08-26 08:36:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:36:59,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:36:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:36:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:36:59,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:36:59,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:36:59,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 125 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 455.5) internal successors, (2733), 6 states have internal predecessors, (2733), 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) [2023-08-26 08:36:59,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:36:59,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:36:59,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:37:13,471 INFO L124 PetriNetUnfolderBase]: 110684/164643 cut-off events. [2023-08-26 08:37:13,471 INFO L125 PetriNetUnfolderBase]: For 24623/24623 co-relation queries the response was YES. [2023-08-26 08:37:14,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356165 conditions, 164643 events. 110684/164643 cut-off events. For 24623/24623 co-relation queries the response was YES. Maximal size of possible extension queue 2661. Compared 1260337 event pairs, 39363 based on Foata normal form. 0/156440 useless extension candidates. Maximal degree in co-relation 356149. Up to 62804 conditions per place. [2023-08-26 08:37:14,902 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 314 selfloop transitions, 5 changer transitions 0/340 dead transitions. [2023-08-26 08:37:14,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 340 transitions, 1593 flow [2023-08-26 08:37:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:37:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:37:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3003 transitions. [2023-08-26 08:37:14,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.441747572815534 [2023-08-26 08:37:14,908 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3003 transitions. [2023-08-26 08:37:14,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3003 transitions. [2023-08-26 08:37:14,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:37:14,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3003 transitions. [2023-08-26 08:37:14,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 500.5) internal successors, (3003), 6 states have internal predecessors, (3003), 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) [2023-08-26 08:37:14,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:37:14,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:37:14,920 INFO L175 Difference]: Start difference. First operand has 132 places, 125 transitions, 417 flow. Second operand 6 states and 3003 transitions. [2023-08-26 08:37:14,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 340 transitions, 1593 flow [2023-08-26 08:37:14,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 340 transitions, 1543 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:37:14,977 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 415 flow [2023-08-26 08:37:14,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-26 08:37:14,977 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-26 08:37:14,977 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 415 flow [2023-08-26 08:37:14,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.5) internal successors, (2733), 6 states have internal predecessors, (2733), 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) [2023-08-26 08:37:14,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:37:14,978 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:37:14,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:37:14,979 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:37:14,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:37:14,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2132723680, now seen corresponding path program 1 times [2023-08-26 08:37:14,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:37:14,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391633693] [2023-08-26 08:37:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:37:14,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:37:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:37:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:37:15,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:37:15,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391633693] [2023-08-26 08:37:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391633693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:37:15,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:37:15,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:37:15,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52837865] [2023-08-26 08:37:15,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:37:15,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:37:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:37:15,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:37:15,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:37:15,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 1133 [2023-08-26 08:37:15,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 415 flow. Second operand has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 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) [2023-08-26 08:37:15,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:37:15,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 1133 [2023-08-26 08:37:15,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:37:16,512 INFO L124 PetriNetUnfolderBase]: 7504/17561 cut-off events. [2023-08-26 08:37:16,512 INFO L125 PetriNetUnfolderBase]: For 2714/2881 co-relation queries the response was YES. [2023-08-26 08:37:16,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33443 conditions, 17561 events. 7504/17561 cut-off events. For 2714/2881 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 168531 event pairs, 2298 based on Foata normal form. 0/17028 useless extension candidates. Maximal degree in co-relation 33427. Up to 7101 conditions per place. [2023-08-26 08:37:16,605 INFO L140 encePairwiseOnDemand]: 1129/1133 looper letters, 94 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-08-26 08:37:16,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 154 transitions, 697 flow [2023-08-26 08:37:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:37:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:37:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1648 transitions. [2023-08-26 08:37:16,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2023-08-26 08:37:16,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1648 transitions. [2023-08-26 08:37:16,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1648 transitions. [2023-08-26 08:37:16,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:37:16,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1648 transitions. [2023-08-26 08:37:16,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 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) [2023-08-26 08:37:16,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:37:16,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:37:16,614 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 415 flow. Second operand 3 states and 1648 transitions. [2023-08-26 08:37:16,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 154 transitions, 697 flow [2023-08-26 08:37:16,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 154 transitions, 685 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:37:16,627 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 415 flow [2023-08-26 08:37:16,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2023-08-26 08:37:16,628 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-26 08:37:16,628 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 415 flow [2023-08-26 08:37:16,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 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) [2023-08-26 08:37:16,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:37:16,629 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:37:16,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:37:16,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:37:16,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:37:16,629 INFO L85 PathProgramCache]: Analyzing trace with hash 131160645, now seen corresponding path program 1 times [2023-08-26 08:37:16,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:37:16,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028756159] [2023-08-26 08:37:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:37:16,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:37:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:37:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:37:17,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:37:17,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028756159] [2023-08-26 08:37:17,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028756159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:37:17,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:37:17,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:37:17,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350449537] [2023-08-26 08:37:17,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:37:17,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:37:17,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:37:17,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:37:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:37:17,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-26 08:37:17,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 460.5) internal successors, (2763), 6 states have internal predecessors, (2763), 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) [2023-08-26 08:37:17,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:37:17,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-26 08:37:17,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:37:35,162 INFO L124 PetriNetUnfolderBase]: 147145/215183 cut-off events. [2023-08-26 08:37:35,162 INFO L125 PetriNetUnfolderBase]: For 19639/19639 co-relation queries the response was YES. [2023-08-26 08:37:36,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460973 conditions, 215183 events. 147145/215183 cut-off events. For 19639/19639 co-relation queries the response was YES. Maximal size of possible extension queue 3584. Compared 1646389 event pairs, 123948 based on Foata normal form. 0/207038 useless extension candidates. Maximal degree in co-relation 460957. Up to 191560 conditions per place. [2023-08-26 08:37:36,866 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 241 selfloop transitions, 4 changer transitions 0/267 dead transitions. [2023-08-26 08:37:36,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 267 transitions, 1271 flow [2023-08-26 08:37:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:37:36,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:37:36,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2945 transitions. [2023-08-26 08:37:36,870 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332156516622536 [2023-08-26 08:37:36,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2945 transitions. [2023-08-26 08:37:36,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2945 transitions. [2023-08-26 08:37:36,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:37:36,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2945 transitions. [2023-08-26 08:37:36,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 490.8333333333333) internal successors, (2945), 6 states have internal predecessors, (2945), 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) [2023-08-26 08:37:36,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:37:36,881 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:37:36,881 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 415 flow. Second operand 6 states and 2945 transitions. [2023-08-26 08:37:36,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 267 transitions, 1271 flow [2023-08-26 08:37:36,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 267 transitions, 1271 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:37:36,891 INFO L231 Difference]: Finished difference. Result has 131 places, 123 transitions, 421 flow [2023-08-26 08:37:36,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=131, PETRI_TRANSITIONS=123} [2023-08-26 08:37:36,891 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-26 08:37:36,892 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 123 transitions, 421 flow [2023-08-26 08:37:36,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.5) internal successors, (2763), 6 states have internal predecessors, (2763), 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) [2023-08-26 08:37:36,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:37:36,892 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:37:36,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:37:36,892 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:37:36,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:37:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash -704572557, now seen corresponding path program 1 times [2023-08-26 08:37:36,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:37:36,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54960576] [2023-08-26 08:37:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:37:36,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:37:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:37:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:37:37,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:37:37,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54960576] [2023-08-26 08:37:37,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54960576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:37:37,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:37:37,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:37:37,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473701243] [2023-08-26 08:37:37,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:37:37,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:37:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:37:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:37:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:37:37,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:37:37,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 123 transitions, 421 flow. Second operand has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 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) [2023-08-26 08:37:37,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:37:37,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:37:37,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:37:59,483 INFO L124 PetriNetUnfolderBase]: 165411/238833 cut-off events. [2023-08-26 08:37:59,483 INFO L125 PetriNetUnfolderBase]: For 23222/23222 co-relation queries the response was YES. [2023-08-26 08:38:00,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516209 conditions, 238833 events. 165411/238833 cut-off events. For 23222/23222 co-relation queries the response was YES. Maximal size of possible extension queue 3646. Compared 1788880 event pairs, 120291 based on Foata normal form. 0/233298 useless extension candidates. Maximal degree in co-relation 516192. Up to 187459 conditions per place. [2023-08-26 08:38:01,412 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 274 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2023-08-26 08:38:01,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 298 transitions, 1397 flow [2023-08-26 08:38:01,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:38:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:38:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2963 transitions. [2023-08-26 08:38:01,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4358634892615475 [2023-08-26 08:38:01,416 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2963 transitions. [2023-08-26 08:38:01,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2963 transitions. [2023-08-26 08:38:01,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:38:01,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2963 transitions. [2023-08-26 08:38:01,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 493.8333333333333) internal successors, (2963), 6 states have internal predecessors, (2963), 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) [2023-08-26 08:38:01,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:01,426 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:01,426 INFO L175 Difference]: Start difference. First operand has 131 places, 123 transitions, 421 flow. Second operand 6 states and 2963 transitions. [2023-08-26 08:38:01,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 298 transitions, 1397 flow [2023-08-26 08:38:01,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 298 transitions, 1390 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:38:01,465 INFO L231 Difference]: Finished difference. Result has 131 places, 122 transitions, 422 flow [2023-08-26 08:38:01,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=422, PETRI_PLACES=131, PETRI_TRANSITIONS=122} [2023-08-26 08:38:01,466 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -13 predicate places. [2023-08-26 08:38:01,466 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 122 transitions, 422 flow [2023-08-26 08:38:01,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.0) internal successors, (2736), 6 states have internal predecessors, (2736), 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) [2023-08-26 08:38:01,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:38:01,467 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:38:01,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:38:01,467 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:38:01,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:38:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2089141439, now seen corresponding path program 1 times [2023-08-26 08:38:01,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:38:01,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547335039] [2023-08-26 08:38:01,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:38:01,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:38:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:38:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:38:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:38:01,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547335039] [2023-08-26 08:38:01,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547335039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:38:01,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:38:01,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:38:01,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190949930] [2023-08-26 08:38:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:38:01,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:38:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:38:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:38:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:38:01,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:38:01,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 122 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 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) [2023-08-26 08:38:01,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:38:01,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:38:01,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:38:19,442 INFO L124 PetriNetUnfolderBase]: 138832/202043 cut-off events. [2023-08-26 08:38:19,442 INFO L125 PetriNetUnfolderBase]: For 28285/28285 co-relation queries the response was YES. [2023-08-26 08:38:20,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449628 conditions, 202043 events. 138832/202043 cut-off events. For 28285/28285 co-relation queries the response was YES. Maximal size of possible extension queue 3432. Compared 1520094 event pairs, 100247 based on Foata normal form. 0/199195 useless extension candidates. Maximal degree in co-relation 449611. Up to 155417 conditions per place. [2023-08-26 08:38:21,079 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 303 selfloop transitions, 5 changer transitions 0/329 dead transitions. [2023-08-26 08:38:21,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 329 transitions, 1564 flow [2023-08-26 08:38:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:38:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:38:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2992 transitions. [2023-08-26 08:38:21,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4401294498381877 [2023-08-26 08:38:21,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2992 transitions. [2023-08-26 08:38:21,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2992 transitions. [2023-08-26 08:38:21,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:38:21,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2992 transitions. [2023-08-26 08:38:21,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 498.6666666666667) internal successors, (2992), 6 states have internal predecessors, (2992), 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) [2023-08-26 08:38:21,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:21,091 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:21,091 INFO L175 Difference]: Start difference. First operand has 131 places, 122 transitions, 422 flow. Second operand 6 states and 2992 transitions. [2023-08-26 08:38:21,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 329 transitions, 1564 flow [2023-08-26 08:38:21,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 329 transitions, 1514 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:38:21,324 INFO L231 Difference]: Finished difference. Result has 130 places, 121 transitions, 420 flow [2023-08-26 08:38:21,325 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=130, PETRI_TRANSITIONS=121} [2023-08-26 08:38:21,325 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -14 predicate places. [2023-08-26 08:38:21,325 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 121 transitions, 420 flow [2023-08-26 08:38:21,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 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) [2023-08-26 08:38:21,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:38:21,326 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:38:21,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:38:21,326 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:38:21,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:38:21,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2144966236, now seen corresponding path program 1 times [2023-08-26 08:38:21,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:38:21,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902698895] [2023-08-26 08:38:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:38:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:38:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:38:22,031 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:38:22,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:38:22,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902698895] [2023-08-26 08:38:22,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902698895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:38:22,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:38:22,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:38:22,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29584825] [2023-08-26 08:38:22,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:38:22,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:38:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:38:22,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:38:22,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:38:22,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 1133 [2023-08-26 08:38:22,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 121 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 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) [2023-08-26 08:38:22,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:38:22,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 1133 [2023-08-26 08:38:22,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:38:41,375 INFO L124 PetriNetUnfolderBase]: 142716/208316 cut-off events. [2023-08-26 08:38:41,375 INFO L125 PetriNetUnfolderBase]: For 25917/25917 co-relation queries the response was YES. [2023-08-26 08:38:42,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460939 conditions, 208316 events. 142716/208316 cut-off events. For 25917/25917 co-relation queries the response was YES. Maximal size of possible extension queue 3402. Compared 1579819 event pairs, 108082 based on Foata normal form. 0/207229 useless extension candidates. Maximal degree in co-relation 460922. Up to 169158 conditions per place. [2023-08-26 08:38:43,344 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 275 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2023-08-26 08:38:43,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 300 transitions, 1450 flow [2023-08-26 08:38:43,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:38:43,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:38:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2964 transitions. [2023-08-26 08:38:43,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43601059135039716 [2023-08-26 08:38:43,348 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2964 transitions. [2023-08-26 08:38:43,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2964 transitions. [2023-08-26 08:38:43,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:38:43,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2964 transitions. [2023-08-26 08:38:43,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 494.0) internal successors, (2964), 6 states have internal predecessors, (2964), 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) [2023-08-26 08:38:43,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:43,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:38:43,356 INFO L175 Difference]: Start difference. First operand has 130 places, 121 transitions, 420 flow. Second operand 6 states and 2964 transitions. [2023-08-26 08:38:43,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 300 transitions, 1450 flow [2023-08-26 08:38:43,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 300 transitions, 1400 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:38:43,849 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 418 flow [2023-08-26 08:38:43,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-26 08:38:43,849 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -15 predicate places. [2023-08-26 08:38:43,849 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 418 flow [2023-08-26 08:38:43,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 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) [2023-08-26 08:38:43,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:38:43,850 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:38:43,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:38:43,850 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:38:43,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:38:43,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1784648619, now seen corresponding path program 1 times [2023-08-26 08:38:43,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:38:43,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528958849] [2023-08-26 08:38:43,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:38:43,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:38:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:38:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:38:44,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:38:44,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528958849] [2023-08-26 08:38:44,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528958849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:38:44,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:38:44,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:38:44,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788590550] [2023-08-26 08:38:44,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:38:44,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:38:44,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:38:44,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:38:44,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:38:44,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 1133 [2023-08-26 08:38:44,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 462.1666666666667) internal successors, (2773), 6 states have internal predecessors, (2773), 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) [2023-08-26 08:38:44,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:38:44,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 1133 [2023-08-26 08:38:44,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:00,497 INFO L124 PetriNetUnfolderBase]: 129627/191219 cut-off events. [2023-08-26 08:39:00,497 INFO L125 PetriNetUnfolderBase]: For 21595/21595 co-relation queries the response was YES. [2023-08-26 08:39:01,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419635 conditions, 191219 events. 129627/191219 cut-off events. For 21595/21595 co-relation queries the response was YES. Maximal size of possible extension queue 3273. Compared 1469869 event pairs, 113459 based on Foata normal form. 0/189987 useless extension candidates. Maximal degree in co-relation 419618. Up to 176968 conditions per place. [2023-08-26 08:39:02,070 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 157 selfloop transitions, 4 changer transitions 0/183 dead transitions. [2023-08-26 08:39:02,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 183 transitions, 894 flow [2023-08-26 08:39:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:39:02,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:39:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2873 transitions. [2023-08-26 08:39:02,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42262430126507794 [2023-08-26 08:39:02,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2873 transitions. [2023-08-26 08:39:02,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2873 transitions. [2023-08-26 08:39:02,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:02,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2873 transitions. [2023-08-26 08:39:02,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 478.8333333333333) internal successors, (2873), 6 states have internal predecessors, (2873), 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) [2023-08-26 08:39:02,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:02,083 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:02,083 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 418 flow. Second operand 6 states and 2873 transitions. [2023-08-26 08:39:02,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 183 transitions, 894 flow [2023-08-26 08:39:02,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 183 transitions, 884 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:39:02,394 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 414 flow [2023-08-26 08:39:02,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-26 08:39:02,394 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -16 predicate places. [2023-08-26 08:39:02,394 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 414 flow [2023-08-26 08:39:02,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 462.1666666666667) internal successors, (2773), 6 states have internal predecessors, (2773), 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) [2023-08-26 08:39:02,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:02,395 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:02,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 08:39:02,395 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:02,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:02,395 INFO L85 PathProgramCache]: Analyzing trace with hash -318168810, now seen corresponding path program 1 times [2023-08-26 08:39:02,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:02,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657793619] [2023-08-26 08:39:02,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:02,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:02,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:02,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657793619] [2023-08-26 08:39:02,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657793619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:02,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:02,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:39:02,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157494174] [2023-08-26 08:39:02,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:02,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:39:02,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:02,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:39:02,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:39:02,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 1133 [2023-08-26 08:39:02,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 414 flow. Second operand has 4 states, 4 states have (on average 515.75) internal successors, (2063), 4 states have internal predecessors, (2063), 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) [2023-08-26 08:39:02,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:02,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 1133 [2023-08-26 08:39:02,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:04,921 INFO L124 PetriNetUnfolderBase]: 12835/23649 cut-off events. [2023-08-26 08:39:04,921 INFO L125 PetriNetUnfolderBase]: For 3847/4034 co-relation queries the response was YES. [2023-08-26 08:39:05,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48443 conditions, 23649 events. 12835/23649 cut-off events. For 3847/4034 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 193819 event pairs, 5426 based on Foata normal form. 9/22980 useless extension candidates. Maximal degree in co-relation 48426. Up to 10211 conditions per place. [2023-08-26 08:39:05,079 INFO L140 encePairwiseOnDemand]: 1130/1133 looper letters, 97 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2023-08-26 08:39:05,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 152 transitions, 704 flow [2023-08-26 08:39:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:39:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:39:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1601 transitions. [2023-08-26 08:39:05,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47102088849661666 [2023-08-26 08:39:05,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1601 transitions. [2023-08-26 08:39:05,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1601 transitions. [2023-08-26 08:39:05,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:05,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1601 transitions. [2023-08-26 08:39:05,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 533.6666666666666) internal successors, (1601), 3 states have internal predecessors, (1601), 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) [2023-08-26 08:39:05,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:39:05,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1133.0) internal successors, (4532), 4 states have internal predecessors, (4532), 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) [2023-08-26 08:39:05,085 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 414 flow. Second operand 3 states and 1601 transitions. [2023-08-26 08:39:05,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 152 transitions, 704 flow [2023-08-26 08:39:05,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 152 transitions, 695 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:39:05,090 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 419 flow [2023-08-26 08:39:05,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2023-08-26 08:39:05,090 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -17 predicate places. [2023-08-26 08:39:05,090 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 419 flow [2023-08-26 08:39:05,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 515.75) internal successors, (2063), 4 states have internal predecessors, (2063), 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) [2023-08-26 08:39:05,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:05,091 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:05,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 08:39:05,091 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:05,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash -774907114, now seen corresponding path program 1 times [2023-08-26 08:39:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138679540] [2023-08-26 08:39:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:05,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:05,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138679540] [2023-08-26 08:39:05,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138679540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:05,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:05,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:05,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217365614] [2023-08-26 08:39:05,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:05,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:05,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:05,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:05,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:05,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:05,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:05,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:05,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:05,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:09,362 INFO L124 PetriNetUnfolderBase]: 19756/34696 cut-off events. [2023-08-26 08:39:09,363 INFO L125 PetriNetUnfolderBase]: For 8358/8926 co-relation queries the response was YES. [2023-08-26 08:39:09,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73740 conditions, 34696 events. 19756/34696 cut-off events. For 8358/8926 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 285929 event pairs, 9341 based on Foata normal form. 146/33241 useless extension candidates. Maximal degree in co-relation 73722. Up to 15658 conditions per place. [2023-08-26 08:39:09,616 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 132 selfloop transitions, 4 changer transitions 12/196 dead transitions. [2023-08-26 08:39:09,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 196 transitions, 931 flow [2023-08-26 08:39:09,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:09,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2635 transitions. [2023-08-26 08:39:09,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651368049426302 [2023-08-26 08:39:09,622 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2635 transitions. [2023-08-26 08:39:09,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2635 transitions. [2023-08-26 08:39:09,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:09,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2635 transitions. [2023-08-26 08:39:09,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 527.0) internal successors, (2635), 5 states have internal predecessors, (2635), 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) [2023-08-26 08:39:09,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:09,629 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:09,629 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 419 flow. Second operand 5 states and 2635 transitions. [2023-08-26 08:39:09,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 196 transitions, 931 flow [2023-08-26 08:39:09,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 196 transitions, 925 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:39:09,661 INFO L231 Difference]: Finished difference. Result has 133 places, 123 transitions, 449 flow [2023-08-26 08:39:09,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=449, PETRI_PLACES=133, PETRI_TRANSITIONS=123} [2023-08-26 08:39:09,662 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2023-08-26 08:39:09,662 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 123 transitions, 449 flow [2023-08-26 08:39:09,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:09,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:09,662 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:09,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 08:39:09,663 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:09,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:09,663 INFO L85 PathProgramCache]: Analyzing trace with hash 518745770, now seen corresponding path program 2 times [2023-08-26 08:39:09,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:09,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200078940] [2023-08-26 08:39:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:09,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:10,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200078940] [2023-08-26 08:39:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200078940] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:39:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825120143] [2023-08-26 08:39:10,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:39:10,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:39:10,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:39:10,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:39:10,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 08:39:10,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:39:10,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:39:10,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-26 08:39:10,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:39:10,481 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-08-26 08:39:10,481 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:39:10,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825120143] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:10,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:39:10,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-08-26 08:39:10,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165276226] [2023-08-26 08:39:10,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:10,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:10,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:10,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:10,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:39:10,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:10,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 123 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:10,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:10,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:10,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:15,714 INFO L124 PetriNetUnfolderBase]: 24859/53070 cut-off events. [2023-08-26 08:39:15,714 INFO L125 PetriNetUnfolderBase]: For 19360/19448 co-relation queries the response was YES. [2023-08-26 08:39:16,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111481 conditions, 53070 events. 24859/53070 cut-off events. For 19360/19448 co-relation queries the response was YES. Maximal size of possible extension queue 1231. Compared 544994 event pairs, 7425 based on Foata normal form. 232/51635 useless extension candidates. Maximal degree in co-relation 111460. Up to 18637 conditions per place. [2023-08-26 08:39:16,189 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 168 selfloop transitions, 7 changer transitions 0/223 dead transitions. [2023-08-26 08:39:16,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 223 transitions, 1104 flow [2023-08-26 08:39:16,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:39:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:39:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3157 transitions. [2023-08-26 08:39:16,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46440129449838186 [2023-08-26 08:39:16,194 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3157 transitions. [2023-08-26 08:39:16,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3157 transitions. [2023-08-26 08:39:16,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:16,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3157 transitions. [2023-08-26 08:39:16,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 526.1666666666666) internal successors, (3157), 6 states have internal predecessors, (3157), 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) [2023-08-26 08:39:16,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:16,202 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:16,202 INFO L175 Difference]: Start difference. First operand has 133 places, 123 transitions, 449 flow. Second operand 6 states and 3157 transitions. [2023-08-26 08:39:16,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 223 transitions, 1104 flow [2023-08-26 08:39:16,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 223 transitions, 1100 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:39:16,322 INFO L231 Difference]: Finished difference. Result has 139 places, 125 transitions, 477 flow [2023-08-26 08:39:16,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=139, PETRI_TRANSITIONS=125} [2023-08-26 08:39:16,323 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -5 predicate places. [2023-08-26 08:39:16,323 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 125 transitions, 477 flow [2023-08-26 08:39:16,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:16,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:16,323 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:16,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 08:39:16,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:39:16,524 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:16,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:16,524 INFO L85 PathProgramCache]: Analyzing trace with hash -726946842, now seen corresponding path program 3 times [2023-08-26 08:39:16,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:16,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648502105] [2023-08-26 08:39:16,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:17,009 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:17,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:17,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648502105] [2023-08-26 08:39:17,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648502105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:17,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:17,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:17,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924363960] [2023-08-26 08:39:17,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:17,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:17,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:17,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:17,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:17,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 125 transitions, 477 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:17,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:17,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:17,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:22,496 INFO L124 PetriNetUnfolderBase]: 29833/53615 cut-off events. [2023-08-26 08:39:22,496 INFO L125 PetriNetUnfolderBase]: For 27989/29117 co-relation queries the response was YES. [2023-08-26 08:39:22,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125434 conditions, 53615 events. 29833/53615 cut-off events. For 27989/29117 co-relation queries the response was YES. Maximal size of possible extension queue 1277. Compared 478634 event pairs, 11641 based on Foata normal form. 104/50942 useless extension candidates. Maximal degree in co-relation 125411. Up to 19915 conditions per place. [2023-08-26 08:39:22,972 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 156 selfloop transitions, 8 changer transitions 5/217 dead transitions. [2023-08-26 08:39:22,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 217 transitions, 1113 flow [2023-08-26 08:39:22,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:22,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2650 transitions. [2023-08-26 08:39:22,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4677846425419241 [2023-08-26 08:39:22,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2650 transitions. [2023-08-26 08:39:22,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2650 transitions. [2023-08-26 08:39:22,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:22,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2650 transitions. [2023-08-26 08:39:22,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 530.0) internal successors, (2650), 5 states have internal predecessors, (2650), 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) [2023-08-26 08:39:22,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:22,982 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:22,982 INFO L175 Difference]: Start difference. First operand has 139 places, 125 transitions, 477 flow. Second operand 5 states and 2650 transitions. [2023-08-26 08:39:22,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 217 transitions, 1113 flow [2023-08-26 08:39:23,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 217 transitions, 1105 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 08:39:23,056 INFO L231 Difference]: Finished difference. Result has 143 places, 130 transitions, 534 flow [2023-08-26 08:39:23,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=534, PETRI_PLACES=143, PETRI_TRANSITIONS=130} [2023-08-26 08:39:23,057 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-08-26 08:39:23,057 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 130 transitions, 534 flow [2023-08-26 08:39:23,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:23,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:23,057 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:23,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 08:39:23,058 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:23,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash -86528034, now seen corresponding path program 4 times [2023-08-26 08:39:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166640417] [2023-08-26 08:39:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:23,421 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166640417] [2023-08-26 08:39:23,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166640417] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:39:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918029743] [2023-08-26 08:39:23,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 08:39:23,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:39:23,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:39:23,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:39:23,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 08:39:24,019 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 08:39:24,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:39:24,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-26 08:39:24,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:39:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:24,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:39:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:24,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918029743] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 08:39:24,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 08:39:24,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2023-08-26 08:39:24,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104105828] [2023-08-26 08:39:24,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:24,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:24,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:24,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:24,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:39:24,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:24,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 130 transitions, 534 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:24,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:24,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:24,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:30,579 INFO L124 PetriNetUnfolderBase]: 30819/58433 cut-off events. [2023-08-26 08:39:30,579 INFO L125 PetriNetUnfolderBase]: For 47106/48087 co-relation queries the response was YES. [2023-08-26 08:39:31,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140506 conditions, 58433 events. 30819/58433 cut-off events. For 47106/48087 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 554621 event pairs, 2083 based on Foata normal form. 293/56591 useless extension candidates. Maximal degree in co-relation 140480. Up to 20299 conditions per place. [2023-08-26 08:39:31,159 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 179 selfloop transitions, 26 changer transitions 1/254 dead transitions. [2023-08-26 08:39:31,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 254 transitions, 1433 flow [2023-08-26 08:39:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:39:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:39:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3671 transitions. [2023-08-26 08:39:31,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4628672298575211 [2023-08-26 08:39:31,162 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3671 transitions. [2023-08-26 08:39:31,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3671 transitions. [2023-08-26 08:39:31,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:31,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3671 transitions. [2023-08-26 08:39:31,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 524.4285714285714) internal successors, (3671), 7 states have internal predecessors, (3671), 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) [2023-08-26 08:39:31,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:39:31,171 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1133.0) internal successors, (9064), 8 states have internal predecessors, (9064), 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) [2023-08-26 08:39:31,171 INFO L175 Difference]: Start difference. First operand has 143 places, 130 transitions, 534 flow. Second operand 7 states and 3671 transitions. [2023-08-26 08:39:31,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 254 transitions, 1433 flow [2023-08-26 08:39:31,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 254 transitions, 1425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:39:31,277 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 734 flow [2023-08-26 08:39:31,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=734, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2023-08-26 08:39:31,277 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2023-08-26 08:39:31,277 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 734 flow [2023-08-26 08:39:31,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:31,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:31,278 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:31,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 08:39:31,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-26 08:39:31,484 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:31,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:31,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1130385776, now seen corresponding path program 5 times [2023-08-26 08:39:31,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:31,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554839168] [2023-08-26 08:39:31,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:31,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:31,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:31,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554839168] [2023-08-26 08:39:31,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554839168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:31,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:31,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:31,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068484122] [2023-08-26 08:39:31,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:31,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:31,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:31,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:31,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:31,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 734 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:31,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:31,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:31,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:39,125 INFO L124 PetriNetUnfolderBase]: 30955/58357 cut-off events. [2023-08-26 08:39:39,125 INFO L125 PetriNetUnfolderBase]: For 81033/84803 co-relation queries the response was YES. [2023-08-26 08:39:39,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149931 conditions, 58357 events. 30955/58357 cut-off events. For 81033/84803 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 552305 event pairs, 12109 based on Foata normal form. 355/56420 useless extension candidates. Maximal degree in co-relation 149901. Up to 19894 conditions per place. [2023-08-26 08:39:39,726 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 186 selfloop transitions, 23 changer transitions 3/260 dead transitions. [2023-08-26 08:39:39,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 260 transitions, 1645 flow [2023-08-26 08:39:39,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:39:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:39:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3170 transitions. [2023-08-26 08:39:39,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663136216534275 [2023-08-26 08:39:39,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3170 transitions. [2023-08-26 08:39:39,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3170 transitions. [2023-08-26 08:39:39,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:39,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3170 transitions. [2023-08-26 08:39:39,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 528.3333333333334) internal successors, (3170), 6 states have internal predecessors, (3170), 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) [2023-08-26 08:39:39,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:39,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:39,736 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 734 flow. Second operand 6 states and 3170 transitions. [2023-08-26 08:39:39,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 260 transitions, 1645 flow [2023-08-26 08:39:40,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 260 transitions, 1611 flow, removed 17 selfloop flow, removed 0 redundant places. [2023-08-26 08:39:40,303 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 886 flow [2023-08-26 08:39:40,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2023-08-26 08:39:40,304 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 17 predicate places. [2023-08-26 08:39:40,304 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 886 flow [2023-08-26 08:39:40,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:40,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:40,305 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:40,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 08:39:40,305 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:40,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1625294698, now seen corresponding path program 6 times [2023-08-26 08:39:40,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:40,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977378833] [2023-08-26 08:39:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:40,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977378833] [2023-08-26 08:39:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977378833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:40,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997860955] [2023-08-26 08:39:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:40,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:40,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:40,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:40,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:40,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:40,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:40,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:40,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:48,114 INFO L124 PetriNetUnfolderBase]: 31299/61807 cut-off events. [2023-08-26 08:39:48,115 INFO L125 PetriNetUnfolderBase]: For 92937/98195 co-relation queries the response was YES. [2023-08-26 08:39:48,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156690 conditions, 61807 events. 31299/61807 cut-off events. For 92937/98195 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 606389 event pairs, 13634 based on Foata normal form. 234/59989 useless extension candidates. Maximal degree in co-relation 156655. Up to 25231 conditions per place. [2023-08-26 08:39:48,984 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 181 selfloop transitions, 14 changer transitions 3/246 dead transitions. [2023-08-26 08:39:48,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 246 transitions, 1689 flow [2023-08-26 08:39:48,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:39:48,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:39:48,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2644 transitions. [2023-08-26 08:39:48,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46672550750220654 [2023-08-26 08:39:48,989 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2644 transitions. [2023-08-26 08:39:48,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2644 transitions. [2023-08-26 08:39:48,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:48,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2644 transitions. [2023-08-26 08:39:49,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 528.8) internal successors, (2644), 5 states have internal predecessors, (2644), 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) [2023-08-26 08:39:49,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:49,040 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:39:49,040 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 886 flow. Second operand 5 states and 2644 transitions. [2023-08-26 08:39:49,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 246 transitions, 1689 flow [2023-08-26 08:39:49,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 246 transitions, 1673 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 08:39:49,738 INFO L231 Difference]: Finished difference. Result has 167 places, 160 transitions, 990 flow [2023-08-26 08:39:49,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=990, PETRI_PLACES=167, PETRI_TRANSITIONS=160} [2023-08-26 08:39:49,739 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 23 predicate places. [2023-08-26 08:39:49,739 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 160 transitions, 990 flow [2023-08-26 08:39:49,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:49,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:39:49,739 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:39:49,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-26 08:39:49,740 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:39:49,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:39:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash -391782690, now seen corresponding path program 7 times [2023-08-26 08:39:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:39:49,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203806656] [2023-08-26 08:39:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:39:49,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:39:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:39:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:39:50,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:39:50,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203806656] [2023-08-26 08:39:50,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203806656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:39:50,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:39:50,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:39:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892563310] [2023-08-26 08:39:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:39:50,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:39:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:39:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:39:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:39:50,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:39:50,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 160 transitions, 990 flow. Second operand has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:39:50,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:39:50,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:39:50,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:39:58,656 INFO L124 PetriNetUnfolderBase]: 34088/68636 cut-off events. [2023-08-26 08:39:58,657 INFO L125 PetriNetUnfolderBase]: For 108484/112855 co-relation queries the response was YES. [2023-08-26 08:39:59,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171562 conditions, 68636 events. 34088/68636 cut-off events. For 108484/112855 co-relation queries the response was YES. Maximal size of possible extension queue 1536. Compared 694876 event pairs, 13226 based on Foata normal form. 494/67142 useless extension candidates. Maximal degree in co-relation 171523. Up to 23965 conditions per place. [2023-08-26 08:39:59,469 INFO L140 encePairwiseOnDemand]: 1126/1133 looper letters, 201 selfloop transitions, 20 changer transitions 4/273 dead transitions. [2023-08-26 08:39:59,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 273 transitions, 1881 flow [2023-08-26 08:39:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:39:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:39:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3177 transitions. [2023-08-26 08:39:59,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4673433362753751 [2023-08-26 08:39:59,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3177 transitions. [2023-08-26 08:39:59,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3177 transitions. [2023-08-26 08:39:59,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:39:59,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3177 transitions. [2023-08-26 08:39:59,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 529.5) internal successors, (3177), 6 states have internal predecessors, (3177), 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) [2023-08-26 08:39:59,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:59,478 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:39:59,478 INFO L175 Difference]: Start difference. First operand has 167 places, 160 transitions, 990 flow. Second operand 6 states and 3177 transitions. [2023-08-26 08:39:59,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 273 transitions, 1881 flow [2023-08-26 08:40:00,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 273 transitions, 1841 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-26 08:40:00,125 INFO L231 Difference]: Finished difference. Result has 173 places, 165 transitions, 1092 flow [2023-08-26 08:40:00,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1092, PETRI_PLACES=173, PETRI_TRANSITIONS=165} [2023-08-26 08:40:00,125 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 29 predicate places. [2023-08-26 08:40:00,125 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 165 transitions, 1092 flow [2023-08-26 08:40:00,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.0) internal successors, (2550), 5 states have internal predecessors, (2550), 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) [2023-08-26 08:40:00,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:40:00,126 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:40:00,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 08:40:00,126 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:40:00,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:40:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash -141072581, now seen corresponding path program 1 times [2023-08-26 08:40:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:40:00,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659607851] [2023-08-26 08:40:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:40:00,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:40:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:40:00,522 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-26 08:40:00,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:40:00,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659607851] [2023-08-26 08:40:00,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659607851] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:40:00,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:40:00,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:40:00,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562912637] [2023-08-26 08:40:00,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:40:00,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:40:00,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:40:00,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:40:00,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:40:00,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:40:00,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 165 transitions, 1092 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:40:00,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:40:00,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:40:00,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:40:13,545 INFO L124 PetriNetUnfolderBase]: 39658/99323 cut-off events. [2023-08-26 08:40:13,545 INFO L125 PetriNetUnfolderBase]: For 240679/244962 co-relation queries the response was YES. [2023-08-26 08:40:14,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257162 conditions, 99323 events. 39658/99323 cut-off events. For 240679/244962 co-relation queries the response was YES. Maximal size of possible extension queue 2360. Compared 1255736 event pairs, 11195 based on Foata normal form. 316/97478 useless extension candidates. Maximal degree in co-relation 257120. Up to 18089 conditions per place. [2023-08-26 08:40:14,900 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 313 selfloop transitions, 32 changer transitions 6/399 dead transitions. [2023-08-26 08:40:14,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 399 transitions, 3603 flow [2023-08-26 08:40:14,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:40:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:40:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3204 transitions. [2023-08-26 08:40:14,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.471315092674316 [2023-08-26 08:40:14,902 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3204 transitions. [2023-08-26 08:40:14,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3204 transitions. [2023-08-26 08:40:14,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:40:14,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3204 transitions. [2023-08-26 08:40:14,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 534.0) internal successors, (3204), 6 states have internal predecessors, (3204), 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) [2023-08-26 08:40:14,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:40:14,909 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1133.0) internal successors, (7931), 7 states have internal predecessors, (7931), 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) [2023-08-26 08:40:14,909 INFO L175 Difference]: Start difference. First operand has 173 places, 165 transitions, 1092 flow. Second operand 6 states and 3204 transitions. [2023-08-26 08:40:14,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 399 transitions, 3603 flow [2023-08-26 08:40:17,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 399 transitions, 3499 flow, removed 19 selfloop flow, removed 2 redundant places. [2023-08-26 08:40:17,556 INFO L231 Difference]: Finished difference. Result has 180 places, 188 transitions, 1439 flow [2023-08-26 08:40:17,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1439, PETRI_PLACES=180, PETRI_TRANSITIONS=188} [2023-08-26 08:40:17,556 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 36 predicate places. [2023-08-26 08:40:17,557 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 188 transitions, 1439 flow [2023-08-26 08:40:17,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:40:17,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:40:17,557 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:40:17,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-26 08:40:17,558 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:40:17,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:40:17,558 INFO L85 PathProgramCache]: Analyzing trace with hash 633794975, now seen corresponding path program 2 times [2023-08-26 08:40:17,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:40:17,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336528739] [2023-08-26 08:40:17,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:40:17,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:40:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:40:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-08-26 08:40:18,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:40:18,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336528739] [2023-08-26 08:40:18,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336528739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:40:18,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:40:18,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:40:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574275942] [2023-08-26 08:40:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:40:18,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:40:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:40:18,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:40:18,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:40:18,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:40:18,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 188 transitions, 1439 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:40:18,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:40:18,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:40:18,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:40:35,156 INFO L124 PetriNetUnfolderBase]: 47674/123427 cut-off events. [2023-08-26 08:40:35,157 INFO L125 PetriNetUnfolderBase]: For 318087/325751 co-relation queries the response was YES. [2023-08-26 08:40:36,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318638 conditions, 123427 events. 47674/123427 cut-off events. For 318087/325751 co-relation queries the response was YES. Maximal size of possible extension queue 2745. Compared 1623326 event pairs, 21692 based on Foata normal form. 391/120686 useless extension candidates. Maximal degree in co-relation 318592. Up to 40339 conditions per place. [2023-08-26 08:40:37,036 INFO L140 encePairwiseOnDemand]: 1127/1133 looper letters, 294 selfloop transitions, 18 changer transitions 8/368 dead transitions. [2023-08-26 08:40:37,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 368 transitions, 3729 flow [2023-08-26 08:40:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:40:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:40:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2647 transitions. [2023-08-26 08:40:37,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672550750220653 [2023-08-26 08:40:37,039 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2647 transitions. [2023-08-26 08:40:37,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2647 transitions. [2023-08-26 08:40:37,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:40:37,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2647 transitions. [2023-08-26 08:40:37,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.4) internal successors, (2647), 5 states have internal predecessors, (2647), 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) [2023-08-26 08:40:37,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:40:37,043 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:40:37,043 INFO L175 Difference]: Start difference. First operand has 180 places, 188 transitions, 1439 flow. Second operand 5 states and 2647 transitions. [2023-08-26 08:40:37,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 368 transitions, 3729 flow [2023-08-26 08:40:39,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 368 transitions, 3725 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-26 08:40:39,903 INFO L231 Difference]: Finished difference. Result has 187 places, 197 transitions, 1566 flow [2023-08-26 08:40:39,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1435, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1566, PETRI_PLACES=187, PETRI_TRANSITIONS=197} [2023-08-26 08:40:39,903 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 43 predicate places. [2023-08-26 08:40:39,903 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 197 transitions, 1566 flow [2023-08-26 08:40:39,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:40:39,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:40:39,904 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:40:39,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-26 08:40:39,904 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:40:39,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:40:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash -242198125, now seen corresponding path program 3 times [2023-08-26 08:40:39,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:40:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755861165] [2023-08-26 08:40:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:40:39,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:40:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:40:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-26 08:40:40,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:40:40,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755861165] [2023-08-26 08:40:40,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755861165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:40:40,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:40:40,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:40:40,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203551558] [2023-08-26 08:40:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:40:40,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:40:40,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:40:40,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:40:40,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:40:40,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:40:40,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 197 transitions, 1566 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:40:40,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:40:40,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:40:40,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:40:57,180 INFO L124 PetriNetUnfolderBase]: 46968/115114 cut-off events. [2023-08-26 08:40:57,180 INFO L125 PetriNetUnfolderBase]: For 318057/328494 co-relation queries the response was YES. [2023-08-26 08:40:58,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312323 conditions, 115114 events. 46968/115114 cut-off events. For 318057/328494 co-relation queries the response was YES. Maximal size of possible extension queue 2622. Compared 1459332 event pairs, 18492 based on Foata normal form. 157/112154 useless extension candidates. Maximal degree in co-relation 312273. Up to 26906 conditions per place. [2023-08-26 08:40:58,981 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 212 selfloop transitions, 30 changer transitions 23/313 dead transitions. [2023-08-26 08:40:58,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 313 transitions, 2908 flow [2023-08-26 08:40:58,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:40:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:40:58,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2645 transitions. [2023-08-26 08:40:58,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46690203000882613 [2023-08-26 08:40:58,984 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2645 transitions. [2023-08-26 08:40:58,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2645 transitions. [2023-08-26 08:40:58,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:40:58,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2645 transitions. [2023-08-26 08:40:58,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.0) internal successors, (2645), 5 states have internal predecessors, (2645), 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) [2023-08-26 08:40:58,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:40:58,991 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:40:58,991 INFO L175 Difference]: Start difference. First operand has 187 places, 197 transitions, 1566 flow. Second operand 5 states and 2645 transitions. [2023-08-26 08:40:58,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 313 transitions, 2908 flow [2023-08-26 08:41:01,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 313 transitions, 2893 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-26 08:41:01,950 INFO L231 Difference]: Finished difference. Result has 192 places, 197 transitions, 1636 flow [2023-08-26 08:41:01,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1551, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1636, PETRI_PLACES=192, PETRI_TRANSITIONS=197} [2023-08-26 08:41:01,953 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 48 predicate places. [2023-08-26 08:41:01,953 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 197 transitions, 1636 flow [2023-08-26 08:41:01,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:41:01,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:41:01,953 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:41:01,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-26 08:41:01,954 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:41:01,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:41:01,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1491917681, now seen corresponding path program 4 times [2023-08-26 08:41:01,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:41:01,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138385543] [2023-08-26 08:41:01,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:41:01,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:41:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:41:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-26 08:41:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:41:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138385543] [2023-08-26 08:41:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138385543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:41:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:41:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:41:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633021920] [2023-08-26 08:41:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:41:02,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:41:02,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:41:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:41:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:41:02,339 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:41:02,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 197 transitions, 1636 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:41:02,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:41:02,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:41:02,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:41:19,849 INFO L124 PetriNetUnfolderBase]: 46529/120078 cut-off events. [2023-08-26 08:41:19,849 INFO L125 PetriNetUnfolderBase]: For 355467/363876 co-relation queries the response was YES. [2023-08-26 08:41:21,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322895 conditions, 120078 events. 46529/120078 cut-off events. For 355467/363876 co-relation queries the response was YES. Maximal size of possible extension queue 2637. Compared 1564994 event pairs, 22748 based on Foata normal form. 155/117038 useless extension candidates. Maximal degree in co-relation 322843. Up to 40534 conditions per place. [2023-08-26 08:41:21,948 INFO L140 encePairwiseOnDemand]: 1128/1133 looper letters, 271 selfloop transitions, 12 changer transitions 24/355 dead transitions. [2023-08-26 08:41:21,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 355 transitions, 3748 flow [2023-08-26 08:41:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:41:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:41:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2637 transitions. [2023-08-26 08:41:21,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4654898499558694 [2023-08-26 08:41:21,951 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2637 transitions. [2023-08-26 08:41:21,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2637 transitions. [2023-08-26 08:41:21,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:41:21,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2637 transitions. [2023-08-26 08:41:21,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 527.4) internal successors, (2637), 5 states have internal predecessors, (2637), 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) [2023-08-26 08:41:21,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:41:21,958 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:41:21,958 INFO L175 Difference]: Start difference. First operand has 192 places, 197 transitions, 1636 flow. Second operand 5 states and 2637 transitions. [2023-08-26 08:41:21,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 355 transitions, 3748 flow [2023-08-26 08:41:26,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 355 transitions, 3638 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-26 08:41:26,411 INFO L231 Difference]: Finished difference. Result has 193 places, 198 transitions, 1615 flow [2023-08-26 08:41:26,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1615, PETRI_PLACES=193, PETRI_TRANSITIONS=198} [2023-08-26 08:41:26,412 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 49 predicate places. [2023-08-26 08:41:26,412 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 198 transitions, 1615 flow [2023-08-26 08:41:26,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:41:26,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:41:26,413 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:41:26,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-26 08:41:26,414 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:41:26,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:41:26,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1165409215, now seen corresponding path program 5 times [2023-08-26 08:41:26,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:41:26,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681980449] [2023-08-26 08:41:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:41:26,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:41:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:41:27,097 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-08-26 08:41:27,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:41:27,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681980449] [2023-08-26 08:41:27,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681980449] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:41:27,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:41:27,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:41:27,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959614564] [2023-08-26 08:41:27,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:41:27,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:41:27,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:41:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:41:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:41:27,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 1133 [2023-08-26 08:41:27,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 198 transitions, 1615 flow. Second operand has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:41:27,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:41:27,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 1133 [2023-08-26 08:41:27,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:41:47,862 INFO L124 PetriNetUnfolderBase]: 54219/139140 cut-off events. [2023-08-26 08:41:47,862 INFO L125 PetriNetUnfolderBase]: For 352715/360120 co-relation queries the response was YES. [2023-08-26 08:41:49,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360263 conditions, 139140 events. 54219/139140 cut-off events. For 352715/360120 co-relation queries the response was YES. Maximal size of possible extension queue 2858. Compared 1842175 event pairs, 21000 based on Foata normal form. 162/135261 useless extension candidates. Maximal degree in co-relation 360210. Up to 35453 conditions per place. [2023-08-26 08:41:50,089 INFO L140 encePairwiseOnDemand]: 1125/1133 looper letters, 260 selfloop transitions, 45 changer transitions 24/377 dead transitions. [2023-08-26 08:41:50,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 377 transitions, 3953 flow [2023-08-26 08:41:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:41:50,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:41:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2647 transitions. [2023-08-26 08:41:50,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672550750220653 [2023-08-26 08:41:50,092 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2647 transitions. [2023-08-26 08:41:50,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2647 transitions. [2023-08-26 08:41:50,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:41:50,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2647 transitions. [2023-08-26 08:41:50,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 529.4) internal successors, (2647), 5 states have internal predecessors, (2647), 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) [2023-08-26 08:41:50,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:41:50,098 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1133.0) internal successors, (6798), 6 states have internal predecessors, (6798), 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) [2023-08-26 08:41:50,098 INFO L175 Difference]: Start difference. First operand has 193 places, 198 transitions, 1615 flow. Second operand 5 states and 2647 transitions. [2023-08-26 08:41:50,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 377 transitions, 3953 flow [2023-08-26 08:41:52,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 377 transitions, 3931 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 08:41:52,896 INFO L231 Difference]: Finished difference. Result has 197 places, 229 transitions, 2285 flow [2023-08-26 08:41:52,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1133, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2285, PETRI_PLACES=197, PETRI_TRANSITIONS=229} [2023-08-26 08:41:52,897 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 53 predicate places. [2023-08-26 08:41:52,900 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 229 transitions, 2285 flow [2023-08-26 08:41:52,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 510.4) internal successors, (2552), 5 states have internal predecessors, (2552), 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) [2023-08-26 08:41:52,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:41:52,901 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:41:52,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-26 08:41:52,901 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 81 more)] === [2023-08-26 08:41:52,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:41:52,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1458324888, now seen corresponding path program 1 times [2023-08-26 08:41:52,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:41:52,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313761143] [2023-08-26 08:41:52,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:41:52,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:41:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:41:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:41:55,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:41:55,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313761143] [2023-08-26 08:41:55,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313761143] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:41:55,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775454753] [2023-08-26 08:41:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:41:55,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:41:55,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:41:55,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:41:55,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-26 08:41:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:41:55,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-26 08:41:55,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:41:57,127 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-26 08:41:57,154 INFO L322 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2023-08-26 08:41:57,154 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 44 [2023-08-26 08:41:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:41:57,241 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:41:58,321 INFO L322 Elim1Store]: treesize reduction 32, result has 73.6 percent of original size [2023-08-26 08:41:58,322 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 102 [2023-08-26 08:41:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-26 08:41:58,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775454753] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:41:58,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:41:58,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 14] total 44 [2023-08-26 08:41:58,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719209508] [2023-08-26 08:41:58,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:41:58,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-08-26 08:41:58,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:41:58,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-08-26 08:41:58,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1810, Unknown=0, NotChecked=0, Total=1980 [2023-08-26 08:41:58,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 1133 [2023-08-26 08:41:58,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 229 transitions, 2285 flow. Second operand has 45 states, 45 states have (on average 406.84444444444443) internal successors, (18308), 45 states have internal predecessors, (18308), 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) [2023-08-26 08:41:58,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:41:58,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 1133 [2023-08-26 08:41:58,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand