/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/popl20-channel-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 09:39:09,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 09:39:09,771 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 09:39:09,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 09:39:09,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 09:39:09,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 09:39:09,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 09:39:09,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 09:39:09,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 09:39:09,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 09:39:09,810 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 09:39:09,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 09:39:09,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 09:39:09,812 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 09:39:09,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 09:39:09,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 09:39:09,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 09:39:09,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 09:39:09,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 09:39:09,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 09:39:09,814 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 09:39:09,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 09:39:09,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 09:39:09,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 09:39:09,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 09:39:09,815 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 09:39:09,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 09:39:09,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:39:09,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 09:39:09,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 09:39:09,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 09:39:09,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 09:39:09,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 09:39:09,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 09:39:09,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 09:39:09,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 09:39:10,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 09:39:10,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 09:39:10,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 09:39:10,140 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 09:39:10,140 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 09:39:10,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-08-26 09:39:11,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 09:39:11,591 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 09:39:11,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2023-08-26 09:39:11,599 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be540e2c/a2b153c8717c44c9b87081fad2f87cb8/FLAG29cd21093 [2023-08-26 09:39:11,609 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8be540e2c/a2b153c8717c44c9b87081fad2f87cb8 [2023-08-26 09:39:11,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 09:39:11,613 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 09:39:11,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 09:39:11,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 09:39:11,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 09:39:11,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:11,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e6ceb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11, skipping insertion in model container [2023-08-26 09:39:11,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:11,641 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 09:39:11,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:39:11,860 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 09:39:11,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:39:11,917 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:39:11,918 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:39:11,923 INFO L206 MainTranslator]: Completed translation [2023-08-26 09:39:11,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11 WrapperNode [2023-08-26 09:39:11,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 09:39:11,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 09:39:11,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 09:39:11,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 09:39:11,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:11,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:11,993 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 288 [2023-08-26 09:39:11,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 09:39:11,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 09:39:11,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 09:39:11,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 09:39:12,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 09:39:12,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 09:39:12,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 09:39:12,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 09:39:12,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (1/1) ... [2023-08-26 09:39:12,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:39:12,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:12,082 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 09:39:12,109 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 09:39:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 09:39:12,124 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 09:39:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 09:39:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 09:39:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 09:39:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 09:39:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 09:39:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 09:39:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 09:39:12,128 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 09:39:12,245 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 09:39:12,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 09:39:12,737 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 09:39:12,853 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 09:39:12,854 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 09:39:12,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:39:12 BoogieIcfgContainer [2023-08-26 09:39:12,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 09:39:12,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 09:39:12,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 09:39:12,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 09:39:12,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:39:11" (1/3) ... [2023-08-26 09:39:12,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbeefa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:39:12, skipping insertion in model container [2023-08-26 09:39:12,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:39:11" (2/3) ... [2023-08-26 09:39:12,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dbeefa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:39:12, skipping insertion in model container [2023-08-26 09:39:12,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:39:12" (3/3) ... [2023-08-26 09:39:12,863 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2023-08-26 09:39:12,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 09:39:12,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-08-26 09:39:12,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 09:39:12,936 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 09:39:12,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 260 transitions, 536 flow [2023-08-26 09:39:13,034 INFO L124 PetriNetUnfolderBase]: 13/258 cut-off events. [2023-08-26 09:39:13,035 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 09:39:13,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 258 events. 13/258 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 446 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 181. Up to 2 conditions per place. [2023-08-26 09:39:13,041 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 260 transitions, 536 flow [2023-08-26 09:39:13,046 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 249 transitions, 510 flow [2023-08-26 09:39:13,049 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 09:39:13,056 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 243 places, 249 transitions, 510 flow [2023-08-26 09:39:13,059 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 243 places, 249 transitions, 510 flow [2023-08-26 09:39:13,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 249 transitions, 510 flow [2023-08-26 09:39:13,098 INFO L124 PetriNetUnfolderBase]: 13/249 cut-off events. [2023-08-26 09:39:13,098 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 09:39:13,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 249 events. 13/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 432 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 181. Up to 2 conditions per place. [2023-08-26 09:39:13,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 7740 [2023-08-26 09:39:19,433 INFO L134 LiptonReduction]: Checked pairs total: 33103 [2023-08-26 09:39:19,433 INFO L136 LiptonReduction]: Total number of compositions: 271 [2023-08-26 09:39:19,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 09:39:19,451 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;@2500b330, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 09:39:19,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-08-26 09:39:19,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 09:39:19,453 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 09:39:19,453 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:39:19,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:19,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 09:39:19,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:19,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1161, now seen corresponding path program 1 times [2023-08-26 09:39:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:19,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156092500] [2023-08-26 09:39:19,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:19,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:19,537 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 09:39:19,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:19,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156092500] [2023-08-26 09:39:19,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156092500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:19,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:19,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 09:39:19,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748418026] [2023-08-26 09:39:19,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:19,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 09:39:19,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:19,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 09:39:19,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 09:39:19,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 531 [2023-08-26 09:39:19,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 172 flow. Second operand has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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 09:39:19,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:19,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 531 [2023-08-26 09:39:19,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:19,676 INFO L124 PetriNetUnfolderBase]: 227/542 cut-off events. [2023-08-26 09:39:19,676 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-08-26 09:39:19,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 542 events. 227/542 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2826 event pairs, 154 based on Foata normal form. 14/459 useless extension candidates. Maximal degree in co-relation 829. Up to 368 conditions per place. [2023-08-26 09:39:19,681 INFO L140 encePairwiseOnDemand]: 495/531 looper letters, 26 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2023-08-26 09:39:19,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 152 flow [2023-08-26 09:39:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 09:39:19,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 09:39:19,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 510 transitions. [2023-08-26 09:39:19,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480225988700565 [2023-08-26 09:39:19,695 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 510 transitions. [2023-08-26 09:39:19,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 510 transitions. [2023-08-26 09:39:19,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:19,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 510 transitions. [2023-08-26 09:39:19,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 255.0) internal successors, (510), 2 states have internal predecessors, (510), 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 09:39:19,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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 09:39:19,708 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 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 09:39:19,710 INFO L175 Difference]: Start difference. First operand has 82 places, 80 transitions, 172 flow. Second operand 2 states and 510 transitions. [2023-08-26 09:39:19,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 152 flow [2023-08-26 09:39:19,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 144 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:39:19,714 INFO L231 Difference]: Finished difference. Result has 44 places, 44 transitions, 92 flow [2023-08-26 09:39:19,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=44, PETRI_TRANSITIONS=44} [2023-08-26 09:39:19,719 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -38 predicate places. [2023-08-26 09:39:19,719 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 44 transitions, 92 flow [2023-08-26 09:39:19,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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 09:39:19,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:19,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 09:39:19,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 09:39:19,720 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:19,721 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:19,721 INFO L85 PathProgramCache]: Analyzing trace with hash 191706826, now seen corresponding path program 1 times [2023-08-26 09:39:19,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:19,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461018762] [2023-08-26 09:39:19,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:19,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:19,820 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 09:39:19,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:19,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461018762] [2023-08-26 09:39:19,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461018762] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:19,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:19,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:39:19,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388833691] [2023-08-26 09:39:19,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:19,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:39:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:39:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:39:19,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 531 [2023-08-26 09:39:19,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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 09:39:19,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:19,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 531 [2023-08-26 09:39:19,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:19,916 INFO L124 PetriNetUnfolderBase]: 227/537 cut-off events. [2023-08-26 09:39:19,916 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 09:39:19,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 537 events. 227/537 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2770 event pairs, 154 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 914. Up to 367 conditions per place. [2023-08-26 09:39:19,921 INFO L140 encePairwiseOnDemand]: 529/531 looper letters, 25 selfloop transitions, 1 changer transitions 0/43 dead transitions. [2023-08-26 09:39:19,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 43 transitions, 142 flow [2023-08-26 09:39:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:39:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:39:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2023-08-26 09:39:19,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4218455743879473 [2023-08-26 09:39:19,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2023-08-26 09:39:19,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2023-08-26 09:39:19,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:19,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2023-08-26 09:39:19,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 09:39:19,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:19,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:19,934 INFO L175 Difference]: Start difference. First operand has 44 places, 44 transitions, 92 flow. Second operand 3 states and 672 transitions. [2023-08-26 09:39:19,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 43 transitions, 142 flow [2023-08-26 09:39:19,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 43 transitions, 142 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:39:19,935 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 92 flow [2023-08-26 09:39:19,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2023-08-26 09:39:19,936 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -37 predicate places. [2023-08-26 09:39:19,937 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 92 flow [2023-08-26 09:39:19,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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 09:39:19,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:19,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:39:19,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 09:39:19,941 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:19,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:19,942 INFO L85 PathProgramCache]: Analyzing trace with hash -453022719, now seen corresponding path program 1 times [2023-08-26 09:39:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:19,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293137252] [2023-08-26 09:39:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:19,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:19,997 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 09:39:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:19,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293137252] [2023-08-26 09:39:19,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293137252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:19,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:19,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 09:39:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929397424] [2023-08-26 09:39:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:39:19,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:39:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:39:20,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 531 [2023-08-26 09:39:20,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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 09:39:20,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:20,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 531 [2023-08-26 09:39:20,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:20,096 INFO L124 PetriNetUnfolderBase]: 300/608 cut-off events. [2023-08-26 09:39:20,096 INFO L125 PetriNetUnfolderBase]: For 10/15 co-relation queries the response was YES. [2023-08-26 09:39:20,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 608 events. 300/608 cut-off events. For 10/15 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2876 event pairs, 60 based on Foata normal form. 1/474 useless extension candidates. Maximal degree in co-relation 1109. Up to 393 conditions per place. [2023-08-26 09:39:20,099 INFO L140 encePairwiseOnDemand]: 527/531 looper letters, 39 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2023-08-26 09:39:20,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 58 transitions, 209 flow [2023-08-26 09:39:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:39:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:39:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2023-08-26 09:39:20,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43753923414940366 [2023-08-26 09:39:20,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 697 transitions. [2023-08-26 09:39:20,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 697 transitions. [2023-08-26 09:39:20,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:20,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 697 transitions. [2023-08-26 09:39:20,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 09:39:20,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:20,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:20,107 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 92 flow. Second operand 3 states and 697 transitions. [2023-08-26 09:39:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 58 transitions, 209 flow [2023-08-26 09:39:20,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:39:20,109 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 110 flow [2023-08-26 09:39:20,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2023-08-26 09:39:20,110 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -36 predicate places. [2023-08-26 09:39:20,110 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 110 flow [2023-08-26 09:39:20,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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 09:39:20,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:20,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:39:20,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 09:39:20,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:20,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash -381733309, now seen corresponding path program 1 times [2023-08-26 09:39:20,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:20,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852568763] [2023-08-26 09:39:20,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:20,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:20,512 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 09:39:20,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852568763] [2023-08-26 09:39:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852568763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:20,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:20,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:39:20,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053484996] [2023-08-26 09:39:20,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:20,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:39:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:39:20,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:39:20,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 531 [2023-08-26 09:39:20,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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 09:39:20,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:20,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 531 [2023-08-26 09:39:20,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:21,052 INFO L124 PetriNetUnfolderBase]: 1392/2087 cut-off events. [2023-08-26 09:39:21,052 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2023-08-26 09:39:21,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4604 conditions, 2087 events. 1392/2087 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 9403 event pairs, 104 based on Foata normal form. 0/1638 useless extension candidates. Maximal degree in co-relation 4600. Up to 803 conditions per place. [2023-08-26 09:39:21,063 INFO L140 encePairwiseOnDemand]: 526/531 looper letters, 131 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2023-08-26 09:39:21,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 136 transitions, 622 flow [2023-08-26 09:39:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:39:21,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:39:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1285 transitions. [2023-08-26 09:39:21,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40332705586942874 [2023-08-26 09:39:21,067 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1285 transitions. [2023-08-26 09:39:21,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1285 transitions. [2023-08-26 09:39:21,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:21,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1285 transitions. [2023-08-26 09:39:21,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.16666666666666) internal successors, (1285), 6 states have internal predecessors, (1285), 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 09:39:21,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:21,077 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:21,077 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 110 flow. Second operand 6 states and 1285 transitions. [2023-08-26 09:39:21,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 136 transitions, 622 flow [2023-08-26 09:39:21,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 136 transitions, 622 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:39:21,080 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 116 flow [2023-08-26 09:39:21,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2023-08-26 09:39:21,081 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -32 predicate places. [2023-08-26 09:39:21,081 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 116 flow [2023-08-26 09:39:21,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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 09:39:21,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:21,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:39:21,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 09:39:21,083 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:21,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:21,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1767050411, now seen corresponding path program 1 times [2023-08-26 09:39:21,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:21,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65569240] [2023-08-26 09:39:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:21,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:21,302 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 09:39:21,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65569240] [2023-08-26 09:39:21,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65569240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:21,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:21,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:39:21,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439946365] [2023-08-26 09:39:21,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:21,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:39:21,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:21,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:39:21,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:39:21,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 531 [2023-08-26 09:39:21,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 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 09:39:21,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:21,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 531 [2023-08-26 09:39:21,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:21,683 INFO L124 PetriNetUnfolderBase]: 1312/1969 cut-off events. [2023-08-26 09:39:21,683 INFO L125 PetriNetUnfolderBase]: For 444/444 co-relation queries the response was YES. [2023-08-26 09:39:21,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4724 conditions, 1969 events. 1312/1969 cut-off events. For 444/444 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 8483 event pairs, 678 based on Foata normal form. 0/1576 useless extension candidates. Maximal degree in co-relation 4719. Up to 1496 conditions per place. [2023-08-26 09:39:21,692 INFO L140 encePairwiseOnDemand]: 525/531 looper letters, 89 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2023-08-26 09:39:21,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 458 flow [2023-08-26 09:39:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:39:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:39:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1232 transitions. [2023-08-26 09:39:21,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.386691776522285 [2023-08-26 09:39:21,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1232 transitions. [2023-08-26 09:39:21,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1232 transitions. [2023-08-26 09:39:21,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:21,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1232 transitions. [2023-08-26 09:39:21,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.33333333333334) internal successors, (1232), 6 states have internal predecessors, (1232), 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 09:39:21,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:21,705 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:21,705 INFO L175 Difference]: Start difference. First operand has 50 places, 44 transitions, 116 flow. Second operand 6 states and 1232 transitions. [2023-08-26 09:39:21,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 458 flow [2023-08-26 09:39:21,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 95 transitions, 423 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:39:21,708 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 117 flow [2023-08-26 09:39:21,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=117, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2023-08-26 09:39:21,709 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -32 predicate places. [2023-08-26 09:39:21,709 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 117 flow [2023-08-26 09:39:21,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 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 09:39:21,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:21,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:39:21,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 09:39:21,710 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:21,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash 479861206, now seen corresponding path program 1 times [2023-08-26 09:39:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267800176] [2023-08-26 09:39:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:21,946 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 09:39:21,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:21,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267800176] [2023-08-26 09:39:21,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267800176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:21,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:21,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:39:21,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479906053] [2023-08-26 09:39:21,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:21,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:39:21,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:21,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:39:21,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:39:21,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 531 [2023-08-26 09:39:21,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 09:39:21,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:21,951 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 531 [2023-08-26 09:39:21,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:22,260 INFO L124 PetriNetUnfolderBase]: 1300/1948 cut-off events. [2023-08-26 09:39:22,260 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2023-08-26 09:39:22,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4590 conditions, 1948 events. 1300/1948 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 8333 event pairs, 884 based on Foata normal form. 0/1567 useless extension candidates. Maximal degree in co-relation 4585. Up to 1838 conditions per place. [2023-08-26 09:39:22,270 INFO L140 encePairwiseOnDemand]: 526/531 looper letters, 69 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2023-08-26 09:39:22,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 365 flow [2023-08-26 09:39:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:39:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:39:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1227 transitions. [2023-08-26 09:39:22,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3851224105461394 [2023-08-26 09:39:22,274 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1227 transitions. [2023-08-26 09:39:22,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1227 transitions. [2023-08-26 09:39:22,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:22,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1227 transitions. [2023-08-26 09:39:22,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 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 09:39:22,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:22,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 531.0) internal successors, (3717), 7 states have internal predecessors, (3717), 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 09:39:22,282 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 117 flow. Second operand 6 states and 1227 transitions. [2023-08-26 09:39:22,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 365 flow [2023-08-26 09:39:22,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 74 transitions, 355 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 09:39:22,285 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 113 flow [2023-08-26 09:39:22,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2023-08-26 09:39:22,285 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -33 predicate places. [2023-08-26 09:39:22,286 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 113 flow [2023-08-26 09:39:22,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 09:39:22,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:22,286 INFO L208 CegarLoopForPetriNet]: trace histogram [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 09:39:22,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 09:39:22,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:22,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:22,287 INFO L85 PathProgramCache]: Analyzing trace with hash 832746094, now seen corresponding path program 1 times [2023-08-26 09:39:22,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:22,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104264961] [2023-08-26 09:39:22,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:22,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:22,346 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 09:39:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:22,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104264961] [2023-08-26 09:39:22,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104264961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:22,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:22,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 09:39:22,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369998957] [2023-08-26 09:39:22,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:22,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:39:22,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:39:22,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:39:22,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 531 [2023-08-26 09:39:22,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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 09:39:22,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:22,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 531 [2023-08-26 09:39:22,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:22,460 INFO L124 PetriNetUnfolderBase]: 452/924 cut-off events. [2023-08-26 09:39:22,461 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-08-26 09:39:22,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 924 events. 452/924 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4405 event pairs, 165 based on Foata normal form. 2/758 useless extension candidates. Maximal degree in co-relation 1900. Up to 382 conditions per place. [2023-08-26 09:39:22,466 INFO L140 encePairwiseOnDemand]: 528/531 looper letters, 42 selfloop transitions, 2 changer transitions 4/61 dead transitions. [2023-08-26 09:39:22,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 258 flow [2023-08-26 09:39:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:39:22,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:39:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2023-08-26 09:39:22,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44318895166352795 [2023-08-26 09:39:22,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2023-08-26 09:39:22,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2023-08-26 09:39:22,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:22,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2023-08-26 09:39:22,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 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 09:39:22,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:22,473 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:22,473 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 113 flow. Second operand 3 states and 706 transitions. [2023-08-26 09:39:22,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 258 flow [2023-08-26 09:39:22,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 249 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 09:39:22,475 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 118 flow [2023-08-26 09:39:22,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2023-08-26 09:39:22,476 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -34 predicate places. [2023-08-26 09:39:22,476 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 118 flow [2023-08-26 09:39:22,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 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 09:39:22,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:22,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:22,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 09:39:22,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:22,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:22,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1520066032, now seen corresponding path program 1 times [2023-08-26 09:39:22,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:22,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923000460] [2023-08-26 09:39:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:22,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:22,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:22,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:22,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923000460] [2023-08-26 09:39:22,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923000460] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:22,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:22,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:39:22,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5740607] [2023-08-26 09:39:22,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:22,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:39:22,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:22,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:39:22,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:39:22,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 531 [2023-08-26 09:39:22,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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 09:39:22,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:22,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 531 [2023-08-26 09:39:22,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:22,763 INFO L124 PetriNetUnfolderBase]: 491/856 cut-off events. [2023-08-26 09:39:22,763 INFO L125 PetriNetUnfolderBase]: For 60/116 co-relation queries the response was YES. [2023-08-26 09:39:22,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1871 conditions, 856 events. 491/856 cut-off events. For 60/116 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3043 event pairs, 180 based on Foata normal form. 4/716 useless extension candidates. Maximal degree in co-relation 1865. Up to 712 conditions per place. [2023-08-26 09:39:22,768 INFO L140 encePairwiseOnDemand]: 526/531 looper letters, 40 selfloop transitions, 6 changer transitions 6/61 dead transitions. [2023-08-26 09:39:22,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 61 transitions, 264 flow [2023-08-26 09:39:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:39:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:39:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 880 transitions. [2023-08-26 09:39:22,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4143126177024482 [2023-08-26 09:39:22,771 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 880 transitions. [2023-08-26 09:39:22,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 880 transitions. [2023-08-26 09:39:22,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:22,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 880 transitions. [2023-08-26 09:39:22,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 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 09:39:22,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:22,776 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:22,776 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 118 flow. Second operand 4 states and 880 transitions. [2023-08-26 09:39:22,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 61 transitions, 264 flow [2023-08-26 09:39:22,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 61 transitions, 262 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:39:22,778 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 148 flow [2023-08-26 09:39:22,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2023-08-26 09:39:22,779 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -30 predicate places. [2023-08-26 09:39:22,779 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 148 flow [2023-08-26 09:39:22,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 213.0) internal successors, (852), 4 states have internal predecessors, (852), 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 09:39:22,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:22,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:22,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 09:39:22,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:22,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:22,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1553536913, now seen corresponding path program 1 times [2023-08-26 09:39:22,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:22,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675055214] [2023-08-26 09:39:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:22,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675055214] [2023-08-26 09:39:22,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675055214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:22,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:22,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:39:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636378397] [2023-08-26 09:39:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:22,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:39:22,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:39:22,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:39:22,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 531 [2023-08-26 09:39:22,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 47 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 207.75) internal successors, (831), 4 states have internal predecessors, (831), 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 09:39:22,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:22,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 531 [2023-08-26 09:39:22,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:22,998 INFO L124 PetriNetUnfolderBase]: 370/839 cut-off events. [2023-08-26 09:39:22,998 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2023-08-26 09:39:23,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 839 events. 370/839 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3862 event pairs, 269 based on Foata normal form. 0/740 useless extension candidates. Maximal degree in co-relation 1824. Up to 588 conditions per place. [2023-08-26 09:39:23,002 INFO L140 encePairwiseOnDemand]: 527/531 looper letters, 33 selfloop transitions, 2 changer transitions 11/59 dead transitions. [2023-08-26 09:39:23,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 272 flow [2023-08-26 09:39:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:39:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:39:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 847 transitions. [2023-08-26 09:39:23,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3987758945386064 [2023-08-26 09:39:23,005 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 847 transitions. [2023-08-26 09:39:23,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 847 transitions. [2023-08-26 09:39:23,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:23,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 847 transitions. [2023-08-26 09:39:23,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 211.75) internal successors, (847), 4 states have internal predecessors, (847), 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 09:39:23,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:23,011 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:23,011 INFO L175 Difference]: Start difference. First operand has 52 places, 47 transitions, 148 flow. Second operand 4 states and 847 transitions. [2023-08-26 09:39:23,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 272 flow [2023-08-26 09:39:23,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 272 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:39:23,013 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 162 flow [2023-08-26 09:39:23,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2023-08-26 09:39:23,014 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -25 predicate places. [2023-08-26 09:39:23,014 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 162 flow [2023-08-26 09:39:23,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 207.75) internal successors, (831), 4 states have internal predecessors, (831), 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 09:39:23,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:23,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:23,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 09:39:23,015 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:23,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash -29606904, now seen corresponding path program 1 times [2023-08-26 09:39:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882309424] [2023-08-26 09:39:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 09:39:23,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:23,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882309424] [2023-08-26 09:39:23,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882309424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:23,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:23,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 09:39:23,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732234435] [2023-08-26 09:39:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:23,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 09:39:23,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 09:39:23,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 09:39:23,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 531 [2023-08-26 09:39:23,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 09:39:23,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:23,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 531 [2023-08-26 09:39:23,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:23,199 INFO L124 PetriNetUnfolderBase]: 347/716 cut-off events. [2023-08-26 09:39:23,199 INFO L125 PetriNetUnfolderBase]: For 191/195 co-relation queries the response was YES. [2023-08-26 09:39:23,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 716 events. 347/716 cut-off events. For 191/195 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2837 event pairs, 218 based on Foata normal form. 1/676 useless extension candidates. Maximal degree in co-relation 1637. Up to 512 conditions per place. [2023-08-26 09:39:23,204 INFO L140 encePairwiseOnDemand]: 528/531 looper letters, 33 selfloop transitions, 3 changer transitions 5/53 dead transitions. [2023-08-26 09:39:23,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 53 transitions, 253 flow [2023-08-26 09:39:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 09:39:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 09:39:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-08-26 09:39:23,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4381669805398619 [2023-08-26 09:39:23,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-08-26 09:39:23,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-08-26 09:39:23,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:23,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-08-26 09:39:23,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 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 09:39:23,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:23,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 531.0) internal successors, (2124), 4 states have internal predecessors, (2124), 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 09:39:23,211 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 162 flow. Second operand 3 states and 698 transitions. [2023-08-26 09:39:23,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 53 transitions, 253 flow [2023-08-26 09:39:23,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 53 transitions, 243 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-26 09:39:23,213 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 145 flow [2023-08-26 09:39:23,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2023-08-26 09:39:23,214 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -26 predicate places. [2023-08-26 09:39:23,214 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 145 flow [2023-08-26 09:39:23,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 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 09:39:23,214 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:23,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:23,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 09:39:23,215 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:23,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash -768105946, now seen corresponding path program 1 times [2023-08-26 09:39:23,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:23,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790715053] [2023-08-26 09:39:23,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:23,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:23,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:23,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790715053] [2023-08-26 09:39:23,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790715053] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:39:23,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701754146] [2023-08-26 09:39:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:23,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:23,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:23,441 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 09:39:23,463 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 09:39:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:23,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-26 09:39:23,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:39:23,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:23,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:39:23,819 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 09:39:23,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701754146] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:39:23,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:39:23,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 5] total 8 [2023-08-26 09:39:23,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444002945] [2023-08-26 09:39:23,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:39:23,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 09:39:23,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 09:39:23,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-26 09:39:23,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 531 [2023-08-26 09:39:23,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 145 flow. Second operand has 9 states, 9 states have (on average 211.66666666666666) internal successors, (1905), 9 states have internal predecessors, (1905), 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 09:39:23,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:23,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 531 [2023-08-26 09:39:23,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:24,081 INFO L124 PetriNetUnfolderBase]: 546/982 cut-off events. [2023-08-26 09:39:24,082 INFO L125 PetriNetUnfolderBase]: For 182/193 co-relation queries the response was YES. [2023-08-26 09:39:24,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 982 events. 546/982 cut-off events. For 182/193 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3874 event pairs, 31 based on Foata normal form. 23/865 useless extension candidates. Maximal degree in co-relation 2246. Up to 523 conditions per place. [2023-08-26 09:39:24,087 INFO L140 encePairwiseOnDemand]: 524/531 looper letters, 45 selfloop transitions, 5 changer transitions 35/94 dead transitions. [2023-08-26 09:39:24,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 94 transitions, 447 flow [2023-08-26 09:39:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:39:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:39:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1741 transitions. [2023-08-26 09:39:24,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4098399246704331 [2023-08-26 09:39:24,092 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1741 transitions. [2023-08-26 09:39:24,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1741 transitions. [2023-08-26 09:39:24,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:24,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1741 transitions. [2023-08-26 09:39:24,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 217.625) internal successors, (1741), 8 states have internal predecessors, (1741), 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 09:39:24,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 531.0) internal successors, (4779), 9 states have internal predecessors, (4779), 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 09:39:24,115 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 531.0) internal successors, (4779), 9 states have internal predecessors, (4779), 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 09:39:24,115 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 145 flow. Second operand 8 states and 1741 transitions. [2023-08-26 09:39:24,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 94 transitions, 447 flow [2023-08-26 09:39:24,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 94 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 09:39:24,117 INFO L231 Difference]: Finished difference. Result has 63 places, 43 transitions, 144 flow [2023-08-26 09:39:24,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=144, PETRI_PLACES=63, PETRI_TRANSITIONS=43} [2023-08-26 09:39:24,117 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -19 predicate places. [2023-08-26 09:39:24,117 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 43 transitions, 144 flow [2023-08-26 09:39:24,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 211.66666666666666) internal successors, (1905), 9 states have internal predecessors, (1905), 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 09:39:24,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:24,118 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:24,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 09:39:24,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-26 09:39:24,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:24,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:24,320 INFO L85 PathProgramCache]: Analyzing trace with hash -357699616, now seen corresponding path program 2 times [2023-08-26 09:39:24,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:24,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354040868] [2023-08-26 09:39:24,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:24,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:25,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:25,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354040868] [2023-08-26 09:39:25,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354040868] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:39:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271908470] [2023-08-26 09:39:25,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 09:39:25,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:25,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:25,050 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 09:39:25,068 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 09:39:25,244 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 09:39:25,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:39:25,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 40 conjunts are in the unsatisfiable core [2023-08-26 09:39:25,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:39:25,326 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 15 treesize of output 11 [2023-08-26 09:39:25,368 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 6 treesize of output 5 [2023-08-26 09:39:25,411 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 6 treesize of output 5 [2023-08-26 09:39:25,756 INFO L322 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-08-26 09:39:25,757 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2023-08-26 09:39:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:25,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:39:26,381 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:26,381 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2023-08-26 09:39:26,398 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:26,399 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 148 treesize of output 140 [2023-08-26 09:39:26,410 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:26,410 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 132 treesize of output 116 [2023-08-26 09:39:26,423 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:26,423 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 79 [2023-08-26 09:39:26,705 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:26,706 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 50 [2023-08-26 09:39:26,717 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-26 09:39:26,718 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 316 treesize of output 288 [2023-08-26 09:39:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 09:39:26,736 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 84 [2023-08-26 09:39:26,750 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-08-26 09:39:26,750 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 75 [2023-08-26 09:39:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:26,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271908470] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:39:26,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:39:26,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 26 [2023-08-26 09:39:26,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785814728] [2023-08-26 09:39:26,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:39:26,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-08-26 09:39:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:26,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-08-26 09:39:26,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=602, Unknown=2, NotChecked=0, Total=756 [2023-08-26 09:39:26,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 531 [2023-08-26 09:39:26,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 43 transitions, 144 flow. Second operand has 28 states, 28 states have (on average 156.5) internal successors, (4382), 28 states have internal predecessors, (4382), 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 09:39:26,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:26,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 531 [2023-08-26 09:39:26,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:29,848 INFO L124 PetriNetUnfolderBase]: 4753/7295 cut-off events. [2023-08-26 09:39:29,848 INFO L125 PetriNetUnfolderBase]: For 2343/2343 co-relation queries the response was YES. [2023-08-26 09:39:29,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18618 conditions, 7295 events. 4753/7295 cut-off events. For 2343/2343 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 36198 event pairs, 816 based on Foata normal form. 2/6410 useless extension candidates. Maximal degree in co-relation 18607. Up to 2128 conditions per place. [2023-08-26 09:39:29,888 INFO L140 encePairwiseOnDemand]: 518/531 looper letters, 251 selfloop transitions, 42 changer transitions 56/350 dead transitions. [2023-08-26 09:39:29,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 350 transitions, 1705 flow [2023-08-26 09:39:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-26 09:39:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-26 09:39:29,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4325 transitions. [2023-08-26 09:39:29,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31326959293060985 [2023-08-26 09:39:29,900 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4325 transitions. [2023-08-26 09:39:29,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4325 transitions. [2023-08-26 09:39:29,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:29,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4325 transitions. [2023-08-26 09:39:29,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 166.34615384615384) internal successors, (4325), 26 states have internal predecessors, (4325), 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 09:39:29,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 531.0) internal successors, (14337), 27 states have internal predecessors, (14337), 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 09:39:29,927 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 531.0) internal successors, (14337), 27 states have internal predecessors, (14337), 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 09:39:29,927 INFO L175 Difference]: Start difference. First operand has 63 places, 43 transitions, 144 flow. Second operand 26 states and 4325 transitions. [2023-08-26 09:39:29,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 350 transitions, 1705 flow [2023-08-26 09:39:30,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 350 transitions, 1601 flow, removed 25 selfloop flow, removed 6 redundant places. [2023-08-26 09:39:30,029 INFO L231 Difference]: Finished difference. Result has 96 places, 82 transitions, 469 flow [2023-08-26 09:39:30,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=469, PETRI_PLACES=96, PETRI_TRANSITIONS=82} [2023-08-26 09:39:30,030 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 14 predicate places. [2023-08-26 09:39:30,030 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 82 transitions, 469 flow [2023-08-26 09:39:30,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 156.5) internal successors, (4382), 28 states have internal predecessors, (4382), 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 09:39:30,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:30,032 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:39:30,040 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 09:39:30,240 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,SelfDestructingSolverStorable11 [2023-08-26 09:39:30,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:30,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash -370371385, now seen corresponding path program 3 times [2023-08-26 09:39:30,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:30,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153870196] [2023-08-26 09:39:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:31,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:31,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153870196] [2023-08-26 09:39:31,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153870196] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:39:31,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356884140] [2023-08-26 09:39:31,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 09:39:31,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:31,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:31,777 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 09:39:31,789 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 09:39:32,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 09:39:32,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:39:32,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 16 conjunts are in the unsatisfiable core [2023-08-26 09:39:32,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:39:32,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 09:39:32,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:39:32,563 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:32,563 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2023-08-26 09:39:32,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 09:39:32,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356884140] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:39:32,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:39:32,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 19 [2023-08-26 09:39:32,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591544421] [2023-08-26 09:39:32,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:39:32,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-26 09:39:32,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:32,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-26 09:39:32,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2023-08-26 09:39:32,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 531 [2023-08-26 09:39:32,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 82 transitions, 469 flow. Second operand has 21 states, 21 states have (on average 175.85714285714286) internal successors, (3693), 21 states have internal predecessors, (3693), 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 09:39:32,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:32,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 531 [2023-08-26 09:39:32,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:33,717 INFO L124 PetriNetUnfolderBase]: 1804/3199 cut-off events. [2023-08-26 09:39:33,718 INFO L125 PetriNetUnfolderBase]: For 6884/6884 co-relation queries the response was YES. [2023-08-26 09:39:33,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10204 conditions, 3199 events. 1804/3199 cut-off events. For 6884/6884 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 15749 event pairs, 316 based on Foata normal form. 1/3190 useless extension candidates. Maximal degree in co-relation 10178. Up to 1173 conditions per place. [2023-08-26 09:39:33,746 INFO L140 encePairwiseOnDemand]: 523/531 looper letters, 120 selfloop transitions, 38 changer transitions 14/181 dead transitions. [2023-08-26 09:39:33,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 181 transitions, 1290 flow [2023-08-26 09:39:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 09:39:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 09:39:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2886 transitions. [2023-08-26 09:39:33,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3396892655367232 [2023-08-26 09:39:33,754 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2886 transitions. [2023-08-26 09:39:33,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2886 transitions. [2023-08-26 09:39:33,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:33,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2886 transitions. [2023-08-26 09:39:33,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 180.375) internal successors, (2886), 16 states have internal predecessors, (2886), 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 09:39:33,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 531.0) internal successors, (9027), 17 states have internal predecessors, (9027), 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 09:39:33,772 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 531.0) internal successors, (9027), 17 states have internal predecessors, (9027), 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 09:39:33,772 INFO L175 Difference]: Start difference. First operand has 96 places, 82 transitions, 469 flow. Second operand 16 states and 2886 transitions. [2023-08-26 09:39:33,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 181 transitions, 1290 flow [2023-08-26 09:39:33,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 181 transitions, 1250 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-08-26 09:39:33,794 INFO L231 Difference]: Finished difference. Result has 113 places, 92 transitions, 616 flow [2023-08-26 09:39:33,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=616, PETRI_PLACES=113, PETRI_TRANSITIONS=92} [2023-08-26 09:39:33,795 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 31 predicate places. [2023-08-26 09:39:33,795 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 92 transitions, 616 flow [2023-08-26 09:39:33,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 175.85714285714286) internal successors, (3693), 21 states have internal predecessors, (3693), 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 09:39:33,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:33,796 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 09:39:33,807 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 09:39:34,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:34,002 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:34,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:34,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1544959174, now seen corresponding path program 4 times [2023-08-26 09:39:34,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:34,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601425990] [2023-08-26 09:39:34,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:34,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:34,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601425990] [2023-08-26 09:39:34,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601425990] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:39:34,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166877012] [2023-08-26 09:39:34,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-26 09:39:34,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:34,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:34,201 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 09:39:34,227 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 09:39:34,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-26 09:39:34,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:39:34,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-26 09:39:34,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:39:34,730 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:34,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:39:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 09:39:34,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166877012] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:39:34,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:39:34,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2023-08-26 09:39:34,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579076440] [2023-08-26 09:39:34,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:39:34,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-26 09:39:34,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:34,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-26 09:39:34,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-08-26 09:39:34,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 531 [2023-08-26 09:39:34,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 92 transitions, 616 flow. Second operand has 15 states, 15 states have (on average 189.4) internal successors, (2841), 15 states have internal predecessors, (2841), 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 09:39:34,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:34,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 531 [2023-08-26 09:39:34,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:35,783 INFO L124 PetriNetUnfolderBase]: 3211/5630 cut-off events. [2023-08-26 09:39:35,783 INFO L125 PetriNetUnfolderBase]: For 13103/13123 co-relation queries the response was YES. [2023-08-26 09:39:35,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18584 conditions, 5630 events. 3211/5630 cut-off events. For 13103/13123 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 31461 event pairs, 925 based on Foata normal form. 65/5692 useless extension candidates. Maximal degree in co-relation 18554. Up to 2588 conditions per place. [2023-08-26 09:39:35,886 INFO L140 encePairwiseOnDemand]: 519/531 looper letters, 105 selfloop transitions, 30 changer transitions 94/238 dead transitions. [2023-08-26 09:39:35,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 238 transitions, 1781 flow [2023-08-26 09:39:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 09:39:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 09:39:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3115 transitions. [2023-08-26 09:39:35,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3666431261770245 [2023-08-26 09:39:35,902 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3115 transitions. [2023-08-26 09:39:35,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3115 transitions. [2023-08-26 09:39:35,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:35,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3115 transitions. [2023-08-26 09:39:35,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 194.6875) internal successors, (3115), 16 states have internal predecessors, (3115), 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 09:39:35,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 531.0) internal successors, (9027), 17 states have internal predecessors, (9027), 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 09:39:35,923 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 531.0) internal successors, (9027), 17 states have internal predecessors, (9027), 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 09:39:35,923 INFO L175 Difference]: Start difference. First operand has 113 places, 92 transitions, 616 flow. Second operand 16 states and 3115 transitions. [2023-08-26 09:39:35,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 238 transitions, 1781 flow [2023-08-26 09:39:35,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 238 transitions, 1710 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-08-26 09:39:35,956 INFO L231 Difference]: Finished difference. Result has 130 places, 100 transitions, 781 flow [2023-08-26 09:39:35,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=781, PETRI_PLACES=130, PETRI_TRANSITIONS=100} [2023-08-26 09:39:35,957 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 48 predicate places. [2023-08-26 09:39:35,957 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 100 transitions, 781 flow [2023-08-26 09:39:35,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 189.4) internal successors, (2841), 15 states have internal predecessors, (2841), 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 09:39:35,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:35,958 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:39:35,972 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 09:39:36,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:36,165 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:36,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:36,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1357178232, now seen corresponding path program 5 times [2023-08-26 09:39:36,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:36,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398878673] [2023-08-26 09:39:36,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:36,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-26 09:39:36,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:36,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398878673] [2023-08-26 09:39:36,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398878673] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:39:36,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:39:36,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:39:36,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88113581] [2023-08-26 09:39:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:39:36,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 09:39:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:36,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 09:39:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-26 09:39:36,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 531 [2023-08-26 09:39:36,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 100 transitions, 781 flow. Second operand has 4 states, 4 states have (on average 228.5) internal successors, (914), 4 states have internal predecessors, (914), 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 09:39:36,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:36,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 531 [2023-08-26 09:39:36,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:39:36,975 INFO L124 PetriNetUnfolderBase]: 2250/4747 cut-off events. [2023-08-26 09:39:36,975 INFO L125 PetriNetUnfolderBase]: For 21089/21183 co-relation queries the response was YES. [2023-08-26 09:39:36,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17696 conditions, 4747 events. 2250/4747 cut-off events. For 21089/21183 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 30507 event pairs, 862 based on Foata normal form. 408/5137 useless extension candidates. Maximal degree in co-relation 17657. Up to 2059 conditions per place. [2023-08-26 09:39:37,016 INFO L140 encePairwiseOnDemand]: 526/531 looper letters, 94 selfloop transitions, 20 changer transitions 0/126 dead transitions. [2023-08-26 09:39:37,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 126 transitions, 1193 flow [2023-08-26 09:39:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 09:39:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 09:39:37,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 926 transitions. [2023-08-26 09:39:37,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.435969868173258 [2023-08-26 09:39:37,018 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 926 transitions. [2023-08-26 09:39:37,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 926 transitions. [2023-08-26 09:39:37,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:39:37,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 926 transitions. [2023-08-26 09:39:37,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 231.5) internal successors, (926), 4 states have internal predecessors, (926), 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 09:39:37,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:37,022 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 531.0) internal successors, (2655), 5 states have internal predecessors, (2655), 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 09:39:37,022 INFO L175 Difference]: Start difference. First operand has 130 places, 100 transitions, 781 flow. Second operand 4 states and 926 transitions. [2023-08-26 09:39:37,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 126 transitions, 1193 flow [2023-08-26 09:39:37,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 126 transitions, 1117 flow, removed 36 selfloop flow, removed 12 redundant places. [2023-08-26 09:39:37,054 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 788 flow [2023-08-26 09:39:37,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=788, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2023-08-26 09:39:37,054 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 24 predicate places. [2023-08-26 09:39:37,054 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 788 flow [2023-08-26 09:39:37,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 228.5) internal successors, (914), 4 states have internal predecessors, (914), 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 09:39:37,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:39:37,055 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 09:39:37,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 09:39:37,055 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:39:37,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:39:37,055 INFO L85 PathProgramCache]: Analyzing trace with hash 364300406, now seen corresponding path program 1 times [2023-08-26 09:39:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:39:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169178060] [2023-08-26 09:39:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:37,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:39:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:38,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:38,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:39:38,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169178060] [2023-08-26 09:39:38,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169178060] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:39:38,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841113978] [2023-08-26 09:39:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:39:38,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:39:38,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:39:38,250 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 09:39:38,266 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 09:39:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:39:38,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 58 conjunts are in the unsatisfiable core [2023-08-26 09:39:38,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:39:38,485 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 16 treesize of output 12 [2023-08-26 09:39:38,528 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 15 treesize of output 11 [2023-08-26 09:39:38,580 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 6 treesize of output 5 [2023-08-26 09:39:38,621 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 6 treesize of output 5 [2023-08-26 09:39:39,220 INFO L322 Elim1Store]: treesize reduction 32, result has 17.9 percent of original size [2023-08-26 09:39:39,220 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 50 treesize of output 21 [2023-08-26 09:39:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:39,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:39:40,257 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:40,258 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 100 [2023-08-26 09:39:40,281 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:40,282 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 562 treesize of output 530 [2023-08-26 09:39:40,316 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:40,316 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 180 treesize of output 190 [2023-08-26 09:39:40,341 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:40,342 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 179 treesize of output 163 [2023-08-26 09:39:41,276 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:39:41,277 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 155 treesize of output 100 [2023-08-26 09:39:41,294 INFO L322 Elim1Store]: treesize reduction 28, result has 24.3 percent of original size [2023-08-26 09:39:41,294 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 266 treesize of output 240 [2023-08-26 09:39:41,325 INFO L322 Elim1Store]: treesize reduction 28, result has 24.3 percent of original size [2023-08-26 09:39:41,325 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 232 treesize of output 188 [2023-08-26 09:39:41,345 INFO L322 Elim1Store]: treesize reduction 28, result has 24.3 percent of original size [2023-08-26 09:39:41,346 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 153 treesize of output 135 [2023-08-26 09:39:41,453 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-26 09:39:41,528 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:39:41,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841113978] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:39:41,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:39:41,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 14] total 42 [2023-08-26 09:39:41,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856155092] [2023-08-26 09:39:41,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:39:41,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-08-26 09:39:41,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:39:41,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-08-26 09:39:41,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1633, Unknown=2, NotChecked=0, Total=1892 [2023-08-26 09:39:41,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 531 [2023-08-26 09:39:41,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 788 flow. Second operand has 44 states, 44 states have (on average 156.1590909090909) internal successors, (6871), 44 states have internal predecessors, (6871), 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 09:39:41,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:39:41,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 531 [2023-08-26 09:39:41,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:40:05,492 INFO L124 PetriNetUnfolderBase]: 50279/79073 cut-off events. [2023-08-26 09:40:05,492 INFO L125 PetriNetUnfolderBase]: For 226649/226649 co-relation queries the response was YES. [2023-08-26 09:40:05,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290631 conditions, 79073 events. 50279/79073 cut-off events. For 226649/226649 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 567203 event pairs, 6580 based on Foata normal form. 583/79654 useless extension candidates. Maximal degree in co-relation 290599. Up to 9837 conditions per place. [2023-08-26 09:40:06,275 INFO L140 encePairwiseOnDemand]: 519/531 looper letters, 1531 selfloop transitions, 494 changer transitions 260/2286 dead transitions. [2023-08-26 09:40:06,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 2286 transitions, 15341 flow [2023-08-26 09:40:06,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-08-26 09:40:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2023-08-26 09:40:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 22257 transitions. [2023-08-26 09:40:06,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3175398048279404 [2023-08-26 09:40:06,307 INFO L72 ComplementDD]: Start complementDD. Operand 132 states and 22257 transitions. [2023-08-26 09:40:06,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 22257 transitions. [2023-08-26 09:40:06,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:40:06,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 132 states and 22257 transitions. [2023-08-26 09:40:06,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 133 states, 132 states have (on average 168.61363636363637) internal successors, (22257), 132 states have internal predecessors, (22257), 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 09:40:06,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 133 states, 133 states have (on average 531.0) internal successors, (70623), 133 states have internal predecessors, (70623), 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 09:40:06,420 INFO L81 ComplementDD]: Finished complementDD. Result has 133 states, 133 states have (on average 531.0) internal successors, (70623), 133 states have internal predecessors, (70623), 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 09:40:06,420 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 788 flow. Second operand 132 states and 22257 transitions. [2023-08-26 09:40:06,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 2286 transitions, 15341 flow [2023-08-26 09:40:06,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 2286 transitions, 14999 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-26 09:40:06,797 INFO L231 Difference]: Finished difference. Result has 288 places, 592 transitions, 7380 flow [2023-08-26 09:40:06,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=132, PETRI_FLOW=7380, PETRI_PLACES=288, PETRI_TRANSITIONS=592} [2023-08-26 09:40:06,798 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 206 predicate places. [2023-08-26 09:40:06,798 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 592 transitions, 7380 flow [2023-08-26 09:40:06,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 156.1590909090909) internal successors, (6871), 44 states have internal predecessors, (6871), 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 09:40:06,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:40:06,800 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 09:40:06,807 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-08-26 09:40:07,006 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,SelfDestructingSolverStorable15 [2023-08-26 09:40:07,007 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:40:07,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:40:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1964828162, now seen corresponding path program 2 times [2023-08-26 09:40:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:40:07,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885859375] [2023-08-26 09:40:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:40:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:40:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:40:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:40:08,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:40:08,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885859375] [2023-08-26 09:40:08,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885859375] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:40:08,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096063398] [2023-08-26 09:40:08,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 09:40:08,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:40:08,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:40:08,661 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 09:40:08,665 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 09:40:08,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 09:40:08,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:40:08,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-26 09:40:08,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:40:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:40:09,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:40:10,246 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:40:10,247 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 75 treesize of output 60 [2023-08-26 09:40:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:40:10,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096063398] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:40:10,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:40:10,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 39 [2023-08-26 09:40:10,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147190524] [2023-08-26 09:40:10,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:40:10,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-26 09:40:10,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:40:10,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-26 09:40:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1376, Unknown=0, NotChecked=0, Total=1640 [2023-08-26 09:40:10,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 531 [2023-08-26 09:40:10,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 592 transitions, 7380 flow. Second operand has 41 states, 41 states have (on average 175.0) internal successors, (7175), 41 states have internal predecessors, (7175), 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 09:40:10,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:40:10,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 531 [2023-08-26 09:40:10,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:40:39,995 INFO L124 PetriNetUnfolderBase]: 49582/86037 cut-off events. [2023-08-26 09:40:39,995 INFO L125 PetriNetUnfolderBase]: For 1378486/1378752 co-relation queries the response was YES. [2023-08-26 09:40:41,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421946 conditions, 86037 events. 49582/86037 cut-off events. For 1378486/1378752 co-relation queries the response was YES. Maximal size of possible extension queue 1948. Compared 742646 event pairs, 4390 based on Foata normal form. 959/86994 useless extension candidates. Maximal degree in co-relation 421861. Up to 16425 conditions per place. [2023-08-26 09:40:41,836 INFO L140 encePairwiseOnDemand]: 519/531 looper letters, 1391 selfloop transitions, 1720 changer transitions 107/3227 dead transitions. [2023-08-26 09:40:41,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 3227 transitions, 43381 flow [2023-08-26 09:40:41,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2023-08-26 09:40:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2023-08-26 09:40:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 19801 transitions. [2023-08-26 09:40:41,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34527795215177515 [2023-08-26 09:40:41,865 INFO L72 ComplementDD]: Start complementDD. Operand 108 states and 19801 transitions. [2023-08-26 09:40:41,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 19801 transitions. [2023-08-26 09:40:41,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:40:41,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 108 states and 19801 transitions. [2023-08-26 09:40:41,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 109 states, 108 states have (on average 183.34259259259258) internal successors, (19801), 108 states have internal predecessors, (19801), 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 09:40:41,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 109 states, 109 states have (on average 531.0) internal successors, (57879), 109 states have internal predecessors, (57879), 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 09:40:41,961 INFO L81 ComplementDD]: Finished complementDD. Result has 109 states, 109 states have (on average 531.0) internal successors, (57879), 109 states have internal predecessors, (57879), 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 09:40:41,961 INFO L175 Difference]: Start difference. First operand has 288 places, 592 transitions, 7380 flow. Second operand 108 states and 19801 transitions. [2023-08-26 09:40:41,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 3227 transitions, 43381 flow [2023-08-26 09:40:53,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 3227 transitions, 37982 flow, removed 2690 selfloop flow, removed 8 redundant places. [2023-08-26 09:40:53,299 INFO L231 Difference]: Finished difference. Result has 447 places, 2167 transitions, 33358 flow [2023-08-26 09:40:53,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=5919, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=364, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=108, PETRI_FLOW=33358, PETRI_PLACES=447, PETRI_TRANSITIONS=2167} [2023-08-26 09:40:53,300 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 365 predicate places. [2023-08-26 09:40:53,300 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 2167 transitions, 33358 flow [2023-08-26 09:40:53,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 175.0) internal successors, (7175), 41 states have internal predecessors, (7175), 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 09:40:53,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:40:53,301 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 09:40:53,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-26 09:40:53,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-26 09:40:53,505 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-26 09:40:53,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:40:53,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1073116080, now seen corresponding path program 3 times [2023-08-26 09:40:53,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:40:53,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945079226] [2023-08-26 09:40:53,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:40:53,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:40:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:40:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:40:54,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:40:54,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945079226] [2023-08-26 09:40:54,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945079226] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 09:40:54,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705200650] [2023-08-26 09:40:54,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 09:40:54,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 09:40:54,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:40:54,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 09:40:54,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-26 09:40:55,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-26 09:40:55,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 09:40:55,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 70 conjunts are in the unsatisfiable core [2023-08-26 09:40:55,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 09:40:55,442 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 13 treesize of output 9 [2023-08-26 09:40:55,498 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 6 treesize of output 5 [2023-08-26 09:40:55,540 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 6 treesize of output 5 [2023-08-26 09:40:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 09:40:56,146 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-26 09:40:56,148 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:40:56,148 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 15 [2023-08-26 09:40:56,367 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:40:56,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 09:41:01,688 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:41:01,689 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 86 [2023-08-26 09:41:01,718 INFO L322 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2023-08-26 09:41:01,719 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 262 treesize of output 246 [2023-08-26 09:41:01,755 INFO L322 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2023-08-26 09:41:01,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 229 treesize of output 191 [2023-08-26 09:41:01,783 INFO L322 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2023-08-26 09:41:01,784 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 152 treesize of output 139 [2023-08-26 09:41:02,155 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 09:41:02,155 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 86 [2023-08-26 09:41:02,187 INFO L322 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2023-08-26 09:41:02,187 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 262 treesize of output 242 [2023-08-26 09:41:02,215 INFO L322 Elim1Store]: treesize reduction 36, result has 20.0 percent of original size [2023-08-26 09:41:02,216 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 229 treesize of output 187 [2023-08-26 09:41:02,241 INFO L322 Elim1Store]: treesize reduction 36, result has 20.0 percent of original size [2023-08-26 09:41:02,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 152 treesize of output 135 [2023-08-26 09:41:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:41:02,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705200650] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 09:41:02,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 09:41:02,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 19] total 51 [2023-08-26 09:41:02,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573319592] [2023-08-26 09:41:02,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 09:41:02,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-08-26 09:41:02,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:41:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-08-26 09:41:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=2265, Unknown=3, NotChecked=0, Total=2756 [2023-08-26 09:41:02,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 531 [2023-08-26 09:41:02,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 2167 transitions, 33358 flow. Second operand has 53 states, 53 states have (on average 153.73584905660377) internal successors, (8148), 53 states have internal predecessors, (8148), 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 09:41:02,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:41:02,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 531 [2023-08-26 09:41:02,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:41:11,330 WARN L234 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 104 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:41:13,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:41:21,915 WARN L234 SmtUtils]: Spent 8.29s on a formula simplification. DAG size of input: 87 DAG size of output: 83 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:41:28,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:41:30,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:41:46,258 WARN L234 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 103 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:41:57,552 WARN L234 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 108 DAG size of output: 105 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:06,921 WARN L234 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 101 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:10,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:42:22,120 WARN L234 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 96 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:31,139 WARN L234 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 89 DAG size of output: 86 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:40,797 WARN L234 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 100 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:51,304 WARN L234 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 103 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:42:59,750 WARN L234 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 98 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:08,998 WARN L234 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 94 DAG size of output: 91 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:17,440 WARN L234 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 93 DAG size of output: 90 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:27,441 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 103 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:36,010 WARN L234 SmtUtils]: Spent 8.48s on a formula simplification. DAG size of input: 105 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:44,730 WARN L234 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 100 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:43:53,203 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 105 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:03,706 WARN L234 SmtUtils]: Spent 10.41s on a formula simplification. DAG size of input: 98 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:14,926 WARN L234 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 96 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:23,349 WARN L234 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 98 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:34,538 WARN L234 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 100 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:43,834 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 103 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:44:52,425 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 100 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:45:01,562 WARN L234 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 99 DAG size of output: 96 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:45:21,450 WARN L234 SmtUtils]: Spent 8.59s on a formula simplification. DAG size of input: 108 DAG size of output: 105 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:45:30,283 WARN L234 SmtUtils]: Spent 8.37s on a formula simplification. DAG size of input: 106 DAG size of output: 103 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:45:43,206 WARN L234 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 105 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:45:51,891 WARN L234 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 109 DAG size of output: 106 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:46:17,242 WARN L234 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 104 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:46:27,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:46:52,564 WARN L234 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 102 DAG size of output: 98 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:47:01,201 WARN L234 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 99 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:47:18,357 WARN L234 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 104 DAG size of output: 99 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:47:26,889 WARN L234 SmtUtils]: Spent 8.34s on a formula simplification. DAG size of input: 101 DAG size of output: 96 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:47:35,436 WARN L234 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 105 DAG size of output: 101 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:47:51,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:48:01,027 WARN L234 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 107 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:48:09,580 WARN L234 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 101 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:48:27,585 WARN L234 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 103 DAG size of output: 98 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:48:39,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:48:41,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-26 09:48:49,788 WARN L234 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 101 DAG size of output: 97 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:49:28,608 WARN L234 SmtUtils]: Spent 8.78s on a formula simplification. DAG size of input: 107 DAG size of output: 103 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:49:37,790 WARN L234 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 104 DAG size of output: 100 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:50:02,365 WARN L234 SmtUtils]: Spent 8.51s on a formula simplification. DAG size of input: 110 DAG size of output: 106 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:50:29,371 WARN L234 SmtUtils]: Spent 8.51s on a formula simplification. DAG size of input: 106 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-26 09:50:37,934 WARN L234 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 106 DAG size of output: 102 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-08-26 09:50:47,177 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 09:50:47,177 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-26 09:50:48,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-26 09:50:48,378 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-08-26 09:50:48,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown