/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 -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/clever.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:16:10,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:16:10,899 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 [2023-08-25 05:16:10,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:16:10,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:16:10,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:16:10,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:16:10,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:16:10,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:16:10,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:16:10,948 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:16:10,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:16:10,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:16:10,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:16:10,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:16:10,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:16:10,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:16:10,951 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:16:10,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:16:10,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:16:10,952 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:16:10,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:16:10,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:16:10,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:16:10,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:16:10,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:16:10,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:16:10,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:16:10,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:16:10,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:16:10,955 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:16:11,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:16:11,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:16:11,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:16:11,232 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:16:11,233 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:16:11,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/clever.wvr.c [2023-08-25 05:16:12,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:16:12,594 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:16:12,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/clever.wvr.c [2023-08-25 05:16:12,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f352f39/79722538a07445749ac3cf57ca3b2901/FLAG90b0eb097 [2023-08-25 05:16:12,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74f352f39/79722538a07445749ac3cf57ca3b2901 [2023-08-25 05:16:12,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:16:12,615 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:16:12,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:16:12,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:16:12,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:16:12,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581e2202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12, skipping insertion in model container [2023-08-25 05:16:12,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,637 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:16:12,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:16:12,816 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:16:12,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:16:12,874 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:16:12,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12 WrapperNode [2023-08-25 05:16:12,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:16:12,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:16:12,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:16:12,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:16:12,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,930 INFO L138 Inliner]: procedures = 19, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 157 [2023-08-25 05:16:12,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:16:12,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:16:12,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:16:12,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:16:12,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,963 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:16:12,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:16:12,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:16:12,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:16:12,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (1/1) ... [2023-08-25 05:16:12,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:16:12,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:13,014 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) [2023-08-25 05:16:13,041 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 [2023-08-25 05:16:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:16:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:16:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:16:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:16:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:16:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:16:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:16:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:16:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:16:13,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:16:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:16:13,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:16:13,061 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:16:13,173 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:16:13,176 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:16:13,499 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:16:13,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:16:13,507 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 05:16:13,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:16:13 BoogieIcfgContainer [2023-08-25 05:16:13,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:16:13,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:16:13,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:16:13,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:16:13,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:16:12" (1/3) ... [2023-08-25 05:16:13,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e48014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:16:13, skipping insertion in model container [2023-08-25 05:16:13,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:16:12" (2/3) ... [2023-08-25 05:16:13,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e48014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:16:13, skipping insertion in model container [2023-08-25 05:16:13,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:16:13" (3/3) ... [2023-08-25 05:16:13,521 INFO L112 eAbstractionObserver]: Analyzing ICFG clever.wvr.c [2023-08-25 05:16:13,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:16:13,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2023-08-25 05:16:13,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:16:13,650 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 05:16:13,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 278 transitions, 572 flow [2023-08-25 05:16:13,876 INFO L124 PetriNetUnfolderBase]: 12/276 cut-off events. [2023-08-25 05:16:13,876 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:16:13,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 12/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 438 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2023-08-25 05:16:13,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 278 transitions, 572 flow [2023-08-25 05:16:13,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 262 places, 267 transitions, 546 flow [2023-08-25 05:16:13,898 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:16:13,910 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 262 places, 267 transitions, 546 flow [2023-08-25 05:16:13,914 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 262 places, 267 transitions, 546 flow [2023-08-25 05:16:13,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 262 places, 267 transitions, 546 flow [2023-08-25 05:16:13,974 INFO L124 PetriNetUnfolderBase]: 12/267 cut-off events. [2023-08-25 05:16:13,974 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 05:16:13,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 267 events. 12/267 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 439 event pairs, 0 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2023-08-25 05:16:13,980 INFO L119 LiptonReduction]: Number of co-enabled transitions 7006 [2023-08-25 05:16:20,781 INFO L134 LiptonReduction]: Checked pairs total: 13386 [2023-08-25 05:16:20,781 INFO L136 LiptonReduction]: Total number of compositions: 338 [2023-08-25 05:16:20,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:16:20,798 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@68bd9da4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:16:20,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-08-25 05:16:20,800 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:16:20,800 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:16:20,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:16:20,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:20,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:16:20,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:20,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1041, now seen corresponding path program 1 times [2023-08-25 05:16:20,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:20,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188939331] [2023-08-25 05:16:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:20,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188939331] [2023-08-25 05:16:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188939331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:20,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:16:20,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872632237] [2023-08-25 05:16:20,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:20,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:16:20,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:16:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:16:20,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 616 [2023-08-25 05:16:20,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 134 flow. Second operand has 2 states, 2 states have (on average 267.5) internal successors, (535), 2 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:20,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:20,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 616 [2023-08-25 05:16:20,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:20,998 INFO L124 PetriNetUnfolderBase]: 125/244 cut-off events. [2023-08-25 05:16:20,998 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-08-25 05:16:21,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 244 events. 125/244 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 901 event pairs, 87 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 418. Up to 211 conditions per place. [2023-08-25 05:16:21,003 INFO L140 encePairwiseOnDemand]: 581/616 looper letters, 21 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-08-25 05:16:21,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 106 flow [2023-08-25 05:16:21,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:16:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:16:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 590 transitions. [2023-08-25 05:16:21,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788961038961039 [2023-08-25 05:16:21,021 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 590 transitions. [2023-08-25 05:16:21,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 590 transitions. [2023-08-25 05:16:21,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 590 transitions. [2023-08-25 05:16:21,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 295.0) internal successors, (590), 2 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,035 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,037 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 134 flow. Second operand 2 states and 590 transitions. [2023-08-25 05:16:21,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 106 flow [2023-08-25 05:16:21,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:16:21,041 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 56 flow [2023-08-25 05:16:21,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-25 05:16:21,045 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -35 predicate places. [2023-08-25 05:16:21,045 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 56 flow [2023-08-25 05:16:21,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 267.5) internal successors, (535), 2 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:21,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 05:16:21,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:16:21,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:21,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:21,046 INFO L85 PathProgramCache]: Analyzing trace with hash 32455162, now seen corresponding path program 1 times [2023-08-25 05:16:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:21,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380596361] [2023-08-25 05:16:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:21,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:21,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380596361] [2023-08-25 05:16:21,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380596361] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:21,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:21,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:21,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144284755] [2023-08-25 05:16:21,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:21,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:21,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:21,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:21,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:21,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 616 [2023-08-25 05:16:21,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:21,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 616 [2023-08-25 05:16:21,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:21,211 INFO L124 PetriNetUnfolderBase]: 130/245 cut-off events. [2023-08-25 05:16:21,211 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:16:21,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 245 events. 130/245 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 882 event pairs, 40 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 472. Up to 214 conditions per place. [2023-08-25 05:16:21,213 INFO L140 encePairwiseOnDemand]: 612/616 looper letters, 24 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2023-08-25 05:16:21,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 29 transitions, 115 flow [2023-08-25 05:16:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2023-08-25 05:16:21,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43398268398268397 [2023-08-25 05:16:21,215 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2023-08-25 05:16:21,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2023-08-25 05:16:21,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2023-08-25 05:16:21,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,223 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 56 flow. Second operand 3 states and 802 transitions. [2023-08-25 05:16:21,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 29 transitions, 115 flow [2023-08-25 05:16:21,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 29 transitions, 115 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:21,224 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 66 flow [2023-08-25 05:16:21,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2023-08-25 05:16:21,225 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -34 predicate places. [2023-08-25 05:16:21,225 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 66 flow [2023-08-25 05:16:21,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.3333333333333) internal successors, (778), 3 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:21,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 05:16:21,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:16:21,227 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:21,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:21,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1125012953, now seen corresponding path program 1 times [2023-08-25 05:16:21,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:21,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332420701] [2023-08-25 05:16:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:21,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:21,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:21,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332420701] [2023-08-25 05:16:21,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332420701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:21,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:21,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385849392] [2023-08-25 05:16:21,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:21,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:21,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:21,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:21,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:21,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 616 [2023-08-25 05:16:21,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:21,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 616 [2023-08-25 05:16:21,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:21,343 INFO L124 PetriNetUnfolderBase]: 130/229 cut-off events. [2023-08-25 05:16:21,343 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-08-25 05:16:21,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 229 events. 130/229 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 727 event pairs, 81 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 494. Up to 219 conditions per place. [2023-08-25 05:16:21,345 INFO L140 encePairwiseOnDemand]: 613/616 looper letters, 22 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-25 05:16:21,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 24 transitions, 108 flow [2023-08-25 05:16:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:21,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2023-08-25 05:16:21,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264069264069264 [2023-08-25 05:16:21,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2023-08-25 05:16:21,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2023-08-25 05:16:21,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2023-08-25 05:16:21,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,354 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 66 flow. Second operand 3 states and 788 transitions. [2023-08-25 05:16:21,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 24 transitions, 108 flow [2023-08-25 05:16:21,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:21,355 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 64 flow [2023-08-25 05:16:21,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2023-08-25 05:16:21,357 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -34 predicate places. [2023-08-25 05:16:21,357 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 64 flow [2023-08-25 05:16:21,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:21,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:21,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:16:21,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:21,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:21,362 INFO L85 PathProgramCache]: Analyzing trace with hash 515670125, now seen corresponding path program 1 times [2023-08-25 05:16:21,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:21,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390922668] [2023-08-25 05:16:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:21,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:21,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:21,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390922668] [2023-08-25 05:16:21,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390922668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:21,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:21,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:16:21,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278220729] [2023-08-25 05:16:21,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:21,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:21,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:21,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:21,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:21,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 616 [2023-08-25 05:16:21,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:21,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 616 [2023-08-25 05:16:21,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:21,484 INFO L124 PetriNetUnfolderBase]: 145/244 cut-off events. [2023-08-25 05:16:21,485 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-25 05:16:21,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 244 events. 145/244 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 733 event pairs, 80 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 547. Up to 215 conditions per place. [2023-08-25 05:16:21,486 INFO L140 encePairwiseOnDemand]: 612/616 looper letters, 29 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2023-08-25 05:16:21,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 32 transitions, 149 flow [2023-08-25 05:16:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 760 transitions. [2023-08-25 05:16:21,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41125541125541126 [2023-08-25 05:16:21,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 760 transitions. [2023-08-25 05:16:21,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 760 transitions. [2023-08-25 05:16:21,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 760 transitions. [2023-08-25 05:16:21,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,496 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 64 flow. Second operand 3 states and 760 transitions. [2023-08-25 05:16:21,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 32 transitions, 149 flow [2023-08-25 05:16:21,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 32 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:21,498 INFO L231 Difference]: Finished difference. Result has 29 places, 24 transitions, 76 flow [2023-08-25 05:16:21,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=29, PETRI_TRANSITIONS=24} [2023-08-25 05:16:21,499 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -33 predicate places. [2023-08-25 05:16:21,500 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 24 transitions, 76 flow [2023-08-25 05:16:21,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:21,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:21,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:16:21,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:21,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:21,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1115535242, now seen corresponding path program 1 times [2023-08-25 05:16:21,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:21,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307010663] [2023-08-25 05:16:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:21,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:21,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:21,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307010663] [2023-08-25 05:16:21,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307010663] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:21,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:21,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 05:16:21,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406161110] [2023-08-25 05:16:21,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:21,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:16:21,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:21,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:16:21,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:16:21,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 616 [2023-08-25 05:16:21,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 24 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:21,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 616 [2023-08-25 05:16:21,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:21,780 INFO L124 PetriNetUnfolderBase]: 281/471 cut-off events. [2023-08-25 05:16:21,780 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-08-25 05:16:21,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 471 events. 281/471 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1685 event pairs, 94 based on Foata normal form. 1/392 useless extension candidates. Maximal degree in co-relation 1133. Up to 262 conditions per place. [2023-08-25 05:16:21,783 INFO L140 encePairwiseOnDemand]: 612/616 looper letters, 39 selfloop transitions, 3 changer transitions 1/43 dead transitions. [2023-08-25 05:16:21,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 43 transitions, 217 flow [2023-08-25 05:16:21,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:16:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:16:21,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2023-08-25 05:16:21,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43885281385281383 [2023-08-25 05:16:21,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2023-08-25 05:16:21,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2023-08-25 05:16:21,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2023-08-25 05:16:21,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 616.0) internal successors, (2464), 4 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,801 INFO L175 Difference]: Start difference. First operand has 29 places, 24 transitions, 76 flow. Second operand 3 states and 811 transitions. [2023-08-25 05:16:21,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 43 transitions, 217 flow [2023-08-25 05:16:21,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:21,805 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 92 flow [2023-08-25 05:16:21,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-08-25 05:16:21,806 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -31 predicate places. [2023-08-25 05:16:21,806 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 92 flow [2023-08-25 05:16:21,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:21,807 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:21,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:16:21,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:21,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash 739266523, now seen corresponding path program 1 times [2023-08-25 05:16:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220247353] [2023-08-25 05:16:21,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:21,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:21,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:21,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:21,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220247353] [2023-08-25 05:16:21,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220247353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:21,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:21,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:16:21,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527309075] [2023-08-25 05:16:21,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:21,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:16:21,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:21,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:16:21,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:16:21,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:16:21,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:21,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:21,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:16:21,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:21,986 INFO L124 PetriNetUnfolderBase]: 483/812 cut-off events. [2023-08-25 05:16:21,987 INFO L125 PetriNetUnfolderBase]: For 163/163 co-relation queries the response was YES. [2023-08-25 05:16:21,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2012 conditions, 812 events. 483/812 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3284 event pairs, 93 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 2005. Up to 361 conditions per place. [2023-08-25 05:16:21,991 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 64 selfloop transitions, 7 changer transitions 2/73 dead transitions. [2023-08-25 05:16:21,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 73 transitions, 382 flow [2023-08-25 05:16:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:16:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:16:21,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1310 transitions. [2023-08-25 05:16:21,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4253246753246753 [2023-08-25 05:16:21,995 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1310 transitions. [2023-08-25 05:16:21,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1310 transitions. [2023-08-25 05:16:21,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:21,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1310 transitions. [2023-08-25 05:16:21,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,004 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,004 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 92 flow. Second operand 5 states and 1310 transitions. [2023-08-25 05:16:22,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 73 transitions, 382 flow [2023-08-25 05:16:22,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 73 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:22,007 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 142 flow [2023-08-25 05:16:22,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2023-08-25 05:16:22,008 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -25 predicate places. [2023-08-25 05:16:22,008 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 142 flow [2023-08-25 05:16:22,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:22,009 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:22,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:16:22,009 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:22,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1882498831, now seen corresponding path program 2 times [2023-08-25 05:16:22,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:22,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597459893] [2023-08-25 05:16:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:22,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:22,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597459893] [2023-08-25 05:16:22,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597459893] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329384370] [2023-08-25 05:16:22,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:16:22,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:22,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:22,061 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) [2023-08-25 05:16:22,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:16:22,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:16:22,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:22,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 05:16:22,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:22,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:22,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:22,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329384370] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:22,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:22,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-08-25 05:16:22,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588717169] [2023-08-25 05:16:22,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:22,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:16:22,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:16:22,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:16:22,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:16:22,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:22,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:16:22,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:22,384 INFO L124 PetriNetUnfolderBase]: 462/773 cut-off events. [2023-08-25 05:16:22,384 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2023-08-25 05:16:22,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2193 conditions, 773 events. 462/773 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3010 event pairs, 40 based on Foata normal form. 14/787 useless extension candidates. Maximal degree in co-relation 2183. Up to 286 conditions per place. [2023-08-25 05:16:22,388 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 51 selfloop transitions, 11 changer transitions 6/68 dead transitions. [2023-08-25 05:16:22,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 68 transitions, 408 flow [2023-08-25 05:16:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:16:22,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:16:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1301 transitions. [2023-08-25 05:16:22,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4224025974025974 [2023-08-25 05:16:22,392 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1301 transitions. [2023-08-25 05:16:22,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1301 transitions. [2023-08-25 05:16:22,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:22,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1301 transitions. [2023-08-25 05:16:22,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 260.2) internal successors, (1301), 5 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,399 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,399 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 142 flow. Second operand 5 states and 1301 transitions. [2023-08-25 05:16:22,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 68 transitions, 408 flow [2023-08-25 05:16:22,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 68 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:22,403 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 209 flow [2023-08-25 05:16:22,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-08-25 05:16:22,403 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -18 predicate places. [2023-08-25 05:16:22,404 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 209 flow [2023-08-25 05:16:22,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.25) internal successors, (1013), 4 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:22,404 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:22,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 05:16:22,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:22,610 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:22,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:22,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1483746473, now seen corresponding path program 1 times [2023-08-25 05:16:22,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:22,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104873569] [2023-08-25 05:16:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:22,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:16:22,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:22,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104873569] [2023-08-25 05:16:22,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104873569] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:22,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:22,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:16:22,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618094235] [2023-08-25 05:16:22,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:22,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:16:22,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:22,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:16:22,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:16:22,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:16:22,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 209 flow. Second operand has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:22,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:16:22,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:22,840 INFO L124 PetriNetUnfolderBase]: 604/1001 cut-off events. [2023-08-25 05:16:22,840 INFO L125 PetriNetUnfolderBase]: For 1350/1350 co-relation queries the response was YES. [2023-08-25 05:16:22,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 1001 events. 604/1001 cut-off events. For 1350/1350 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4100 event pairs, 207 based on Foata normal form. 6/1007 useless extension candidates. Maximal degree in co-relation 3174. Up to 438 conditions per place. [2023-08-25 05:16:22,847 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 70 selfloop transitions, 11 changer transitions 1/82 dead transitions. [2023-08-25 05:16:22,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 82 transitions, 596 flow [2023-08-25 05:16:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:16:22,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:16:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1304 transitions. [2023-08-25 05:16:22,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42337662337662335 [2023-08-25 05:16:22,852 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1304 transitions. [2023-08-25 05:16:22,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1304 transitions. [2023-08-25 05:16:22,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:22,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1304 transitions. [2023-08-25 05:16:22,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 260.8) internal successors, (1304), 5 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,861 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 209 flow. Second operand 5 states and 1304 transitions. [2023-08-25 05:16:22,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 82 transitions, 596 flow [2023-08-25 05:16:22,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 82 transitions, 590 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:22,867 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 315 flow [2023-08-25 05:16:22,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=315, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2023-08-25 05:16:22,868 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places. [2023-08-25 05:16:22,868 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 315 flow [2023-08-25 05:16:22,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:22,869 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:22,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:16:22,869 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:22,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash 344331277, now seen corresponding path program 2 times [2023-08-25 05:16:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035172172] [2023-08-25 05:16:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:16:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:22,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035172172] [2023-08-25 05:16:22,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035172172] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:16:22,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:16:22,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:16:22,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222325114] [2023-08-25 05:16:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:16:22,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:16:22,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:22,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:16:22,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:16:22,932 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:16:22,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:22,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:22,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:16:22,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:23,090 INFO L124 PetriNetUnfolderBase]: 548/910 cut-off events. [2023-08-25 05:16:23,090 INFO L125 PetriNetUnfolderBase]: For 2054/2054 co-relation queries the response was YES. [2023-08-25 05:16:23,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3128 conditions, 910 events. 548/910 cut-off events. For 2054/2054 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3602 event pairs, 104 based on Foata normal form. 40/950 useless extension candidates. Maximal degree in co-relation 3110. Up to 504 conditions per place. [2023-08-25 05:16:23,097 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 63 selfloop transitions, 13 changer transitions 5/81 dead transitions. [2023-08-25 05:16:23,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 81 transitions, 635 flow [2023-08-25 05:16:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:16:23,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:16:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1303 transitions. [2023-08-25 05:16:23,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42305194805194807 [2023-08-25 05:16:23,100 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1303 transitions. [2023-08-25 05:16:23,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1303 transitions. [2023-08-25 05:16:23,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:23,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1303 transitions. [2023-08-25 05:16:23,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 260.6) internal successors, (1303), 5 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:23,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:23,108 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 616.0) internal successors, (3696), 6 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:23,108 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 315 flow. Second operand 5 states and 1303 transitions. [2023-08-25 05:16:23,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 81 transitions, 635 flow [2023-08-25 05:16:23,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 625 flow, removed 5 selfloop flow, removed 0 redundant places. [2023-08-25 05:16:23,114 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 355 flow [2023-08-25 05:16:23,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=355, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2023-08-25 05:16:23,115 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2023-08-25 05:16:23,115 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 355 flow [2023-08-25 05:16:23,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:23,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:23,116 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:23,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:16:23,116 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:23,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:23,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2104379191, now seen corresponding path program 1 times [2023-08-25 05:16:23,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:23,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828950604] [2023-08-25 05:16:23,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:23,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:23,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:23,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828950604] [2023-08-25 05:16:23,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828950604] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:23,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472711309] [2023-08-25 05:16:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:23,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:23,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:23,415 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) [2023-08-25 05:16:23,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 05:16:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:23,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 05:16:23,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:23,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:23,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:23,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472711309] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:23,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:23,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2023-08-25 05:16:23,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763804394] [2023-08-25 05:16:23,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:23,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 05:16:23,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:23,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 05:16:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-08-25 05:16:23,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:23,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 355 flow. Second operand has 13 states, 13 states have (on average 243.30769230769232) internal successors, (3163), 13 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:23,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:23,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:23,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:24,551 INFO L124 PetriNetUnfolderBase]: 1153/1930 cut-off events. [2023-08-25 05:16:24,552 INFO L125 PetriNetUnfolderBase]: For 6011/6011 co-relation queries the response was YES. [2023-08-25 05:16:24,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7303 conditions, 1930 events. 1153/1930 cut-off events. For 6011/6011 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 9390 event pairs, 107 based on Foata normal form. 24/1954 useless extension candidates. Maximal degree in co-relation 7282. Up to 681 conditions per place. [2023-08-25 05:16:24,565 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 118 selfloop transitions, 22 changer transitions 43/183 dead transitions. [2023-08-25 05:16:24,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 183 transitions, 1682 flow [2023-08-25 05:16:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 05:16:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 05:16:24,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2513 transitions. [2023-08-25 05:16:24,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40795454545454546 [2023-08-25 05:16:24,571 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2513 transitions. [2023-08-25 05:16:24,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2513 transitions. [2023-08-25 05:16:24,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:24,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2513 transitions. [2023-08-25 05:16:24,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 251.3) internal successors, (2513), 10 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:24,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 616.0) internal successors, (6776), 11 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:24,585 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 616.0) internal successors, (6776), 11 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:24,585 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 355 flow. Second operand 10 states and 2513 transitions. [2023-08-25 05:16:24,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 183 transitions, 1682 flow [2023-08-25 05:16:24,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 183 transitions, 1643 flow, removed 18 selfloop flow, removed 1 redundant places. [2023-08-25 05:16:24,599 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 586 flow [2023-08-25 05:16:24,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=586, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2023-08-25 05:16:24,600 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2023-08-25 05:16:24,600 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 586 flow [2023-08-25 05:16:24,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 243.30769230769232) internal successors, (3163), 13 states have internal predecessors, (3163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:24,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:24,602 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:24,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 05:16:24,807 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,SelfDestructingSolverStorable9 [2023-08-25 05:16:24,808 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:24,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1178697621, now seen corresponding path program 2 times [2023-08-25 05:16:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:24,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122979944] [2023-08-25 05:16:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:24,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:25,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122979944] [2023-08-25 05:16:25,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122979944] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489013467] [2023-08-25 05:16:25,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:16:25,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:25,139 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) [2023-08-25 05:16:25,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 05:16:25,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:16:25,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:25,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 05:16:25,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:25,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:25,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489013467] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:25,616 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:25,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2023-08-25 05:16:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033781006] [2023-08-25 05:16:25,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:25,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 05:16:25,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:25,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 05:16:25,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-08-25 05:16:25,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:25,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 586 flow. Second operand has 13 states, 13 states have (on average 243.46153846153845) internal successors, (3165), 13 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:25,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:25,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:25,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:26,786 INFO L124 PetriNetUnfolderBase]: 2686/4497 cut-off events. [2023-08-25 05:16:26,786 INFO L125 PetriNetUnfolderBase]: For 17684/17684 co-relation queries the response was YES. [2023-08-25 05:16:26,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18465 conditions, 4497 events. 2686/4497 cut-off events. For 17684/17684 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 24394 event pairs, 397 based on Foata normal form. 5/4502 useless extension candidates. Maximal degree in co-relation 18437. Up to 1105 conditions per place. [2023-08-25 05:16:26,828 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 255 selfloop transitions, 75 changer transitions 15/345 dead transitions. [2023-08-25 05:16:26,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 345 transitions, 3543 flow [2023-08-25 05:16:26,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 05:16:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 05:16:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3791 transitions. [2023-08-25 05:16:26,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4102813852813853 [2023-08-25 05:16:26,838 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3791 transitions. [2023-08-25 05:16:26,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3791 transitions. [2023-08-25 05:16:26,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:26,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3791 transitions. [2023-08-25 05:16:26,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 252.73333333333332) internal successors, (3791), 15 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:26,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 616.0) internal successors, (9856), 16 states have internal predecessors, (9856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:26,858 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 616.0) internal successors, (9856), 16 states have internal predecessors, (9856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:26,858 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 586 flow. Second operand 15 states and 3791 transitions. [2023-08-25 05:16:26,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 345 transitions, 3543 flow [2023-08-25 05:16:26,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 345 transitions, 3389 flow, removed 75 selfloop flow, removed 3 redundant places. [2023-08-25 05:16:26,892 INFO L231 Difference]: Finished difference. Result has 92 places, 125 transitions, 1471 flow [2023-08-25 05:16:26,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1471, PETRI_PLACES=92, PETRI_TRANSITIONS=125} [2023-08-25 05:16:26,893 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 30 predicate places. [2023-08-25 05:16:26,893 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 125 transitions, 1471 flow [2023-08-25 05:16:26,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 243.46153846153845) internal successors, (3165), 13 states have internal predecessors, (3165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:26,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:26,894 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:26,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 05:16:27,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:27,100 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:27,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:27,100 INFO L85 PathProgramCache]: Analyzing trace with hash -423585751, now seen corresponding path program 3 times [2023-08-25 05:16:27,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044567371] [2023-08-25 05:16:27,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:27,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:27,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:27,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044567371] [2023-08-25 05:16:27,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044567371] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:27,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255014097] [2023-08-25 05:16:27,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:16:27,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:27,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:27,511 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) [2023-08-25 05:16:27,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 05:16:27,643 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 05:16:27,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:27,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 05:16:27,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:27,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:27,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:28,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255014097] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:28,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 11 [2023-08-25 05:16:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95656752] [2023-08-25 05:16:28,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:28,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-25 05:16:28,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-25 05:16:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-08-25 05:16:28,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:28,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 125 transitions, 1471 flow. Second operand has 13 states, 13 states have (on average 243.3846153846154) internal successors, (3164), 13 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:28,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:28,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:28,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:29,304 INFO L124 PetriNetUnfolderBase]: 4208/7035 cut-off events. [2023-08-25 05:16:29,305 INFO L125 PetriNetUnfolderBase]: For 41234/41234 co-relation queries the response was YES. [2023-08-25 05:16:29,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32443 conditions, 7035 events. 4208/7035 cut-off events. For 41234/41234 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 42218 event pairs, 859 based on Foata normal form. 4/7039 useless extension candidates. Maximal degree in co-relation 32405. Up to 2074 conditions per place. [2023-08-25 05:16:29,367 INFO L140 encePairwiseOnDemand]: 610/616 looper letters, 189 selfloop transitions, 93 changer transitions 17/299 dead transitions. [2023-08-25 05:16:29,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 299 transitions, 3678 flow [2023-08-25 05:16:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 05:16:29,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 05:16:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2512 transitions. [2023-08-25 05:16:29,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4077922077922078 [2023-08-25 05:16:29,374 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2512 transitions. [2023-08-25 05:16:29,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2512 transitions. [2023-08-25 05:16:29,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:29,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2512 transitions. [2023-08-25 05:16:29,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 251.2) internal successors, (2512), 10 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:29,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 616.0) internal successors, (6776), 11 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:29,387 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 616.0) internal successors, (6776), 11 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:29,387 INFO L175 Difference]: Start difference. First operand has 92 places, 125 transitions, 1471 flow. Second operand 10 states and 2512 transitions. [2023-08-25 05:16:29,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 299 transitions, 3678 flow [2023-08-25 05:16:29,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 299 transitions, 3478 flow, removed 94 selfloop flow, removed 3 redundant places. [2023-08-25 05:16:29,588 INFO L231 Difference]: Finished difference. Result has 103 places, 172 transitions, 2258 flow [2023-08-25 05:16:29,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=1347, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2258, PETRI_PLACES=103, PETRI_TRANSITIONS=172} [2023-08-25 05:16:29,589 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 41 predicate places. [2023-08-25 05:16:29,589 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 172 transitions, 2258 flow [2023-08-25 05:16:29,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 243.3846153846154) internal successors, (3164), 13 states have internal predecessors, (3164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:29,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:29,590 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:29,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 05:16:29,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:29,795 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:29,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:29,796 INFO L85 PathProgramCache]: Analyzing trace with hash 595880261, now seen corresponding path program 1 times [2023-08-25 05:16:29,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:29,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269059553] [2023-08-25 05:16:29,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:29,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269059553] [2023-08-25 05:16:30,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269059553] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174374456] [2023-08-25 05:16:30,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:30,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:30,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:30,272 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) [2023-08-25 05:16:30,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 05:16:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:30,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-25 05:16:30,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:30,860 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:31,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174374456] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:31,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:31,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2023-08-25 05:16:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039542806] [2023-08-25 05:16:31,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:31,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 05:16:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 05:16:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-08-25 05:16:31,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:31,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 172 transitions, 2258 flow. Second operand has 20 states, 20 states have (on average 242.7) internal successors, (4854), 20 states have internal predecessors, (4854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:31,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:31,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:31,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:35,411 INFO L124 PetriNetUnfolderBase]: 5889/9861 cut-off events. [2023-08-25 05:16:35,411 INFO L125 PetriNetUnfolderBase]: For 68335/68335 co-relation queries the response was YES. [2023-08-25 05:16:35,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47166 conditions, 9861 events. 5889/9861 cut-off events. For 68335/68335 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 63571 event pairs, 731 based on Foata normal form. 2/9863 useless extension candidates. Maximal degree in co-relation 47123. Up to 4101 conditions per place. [2023-08-25 05:16:35,486 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 381 selfloop transitions, 153 changer transitions 6/540 dead transitions. [2023-08-25 05:16:35,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 540 transitions, 6430 flow [2023-08-25 05:16:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-25 05:16:35,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-25 05:16:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 6760 transitions. [2023-08-25 05:16:35,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40644540644540644 [2023-08-25 05:16:35,502 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 6760 transitions. [2023-08-25 05:16:35,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 6760 transitions. [2023-08-25 05:16:35,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:35,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 6760 transitions. [2023-08-25 05:16:35,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 250.37037037037038) internal successors, (6760), 27 states have internal predecessors, (6760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:35,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 616.0) internal successors, (17248), 28 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:35,536 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 616.0) internal successors, (17248), 28 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:35,536 INFO L175 Difference]: Start difference. First operand has 103 places, 172 transitions, 2258 flow. Second operand 27 states and 6760 transitions. [2023-08-25 05:16:35,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 540 transitions, 6430 flow [2023-08-25 05:16:35,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 540 transitions, 6343 flow, removed 36 selfloop flow, removed 4 redundant places. [2023-08-25 05:16:35,704 INFO L231 Difference]: Finished difference. Result has 133 places, 267 transitions, 4055 flow [2023-08-25 05:16:35,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=2215, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=4055, PETRI_PLACES=133, PETRI_TRANSITIONS=267} [2023-08-25 05:16:35,705 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 71 predicate places. [2023-08-25 05:16:35,706 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 267 transitions, 4055 flow [2023-08-25 05:16:35,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 242.7) internal successors, (4854), 20 states have internal predecessors, (4854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:35,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:35,707 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:35,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 05:16:35,912 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,SelfDestructingSolverStorable12 [2023-08-25 05:16:35,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:35,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1752028711, now seen corresponding path program 2 times [2023-08-25 05:16:35,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:35,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725957070] [2023-08-25 05:16:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:35,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725957070] [2023-08-25 05:16:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725957070] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911910174] [2023-08-25 05:16:36,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:16:36,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:36,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:36,341 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) [2023-08-25 05:16:36,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 05:16:36,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:16:36,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:36,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-25 05:16:36,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:36,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:38,905 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:16:38,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911910174] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:38,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:38,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 4] total 15 [2023-08-25 05:16:38,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116407251] [2023-08-25 05:16:38,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:38,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 05:16:38,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:38,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 05:16:38,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-08-25 05:16:38,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:38,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 267 transitions, 4055 flow. Second operand has 17 states, 17 states have (on average 243.05882352941177) internal successors, (4132), 17 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:38,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:38,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:38,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:45,445 INFO L124 PetriNetUnfolderBase]: 8632/14536 cut-off events. [2023-08-25 05:16:45,445 INFO L125 PetriNetUnfolderBase]: For 124386/124386 co-relation queries the response was YES. [2023-08-25 05:16:45,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73228 conditions, 14536 events. 8632/14536 cut-off events. For 124386/124386 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 100001 event pairs, 1883 based on Foata normal form. 6/14542 useless extension candidates. Maximal degree in co-relation 73177. Up to 9080 conditions per place. [2023-08-25 05:16:45,568 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 534 selfloop transitions, 172 changer transitions 8/714 dead transitions. [2023-08-25 05:16:45,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 714 transitions, 10407 flow [2023-08-25 05:16:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 05:16:45,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 05:16:45,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5321 transitions. [2023-08-25 05:16:45,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41133271490414347 [2023-08-25 05:16:45,578 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5321 transitions. [2023-08-25 05:16:45,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5321 transitions. [2023-08-25 05:16:45,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:45,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5321 transitions. [2023-08-25 05:16:45,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 253.38095238095238) internal successors, (5321), 21 states have internal predecessors, (5321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:45,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 616.0) internal successors, (13552), 22 states have internal predecessors, (13552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:45,602 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 616.0) internal successors, (13552), 22 states have internal predecessors, (13552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:45,602 INFO L175 Difference]: Start difference. First operand has 133 places, 267 transitions, 4055 flow. Second operand 21 states and 5321 transitions. [2023-08-25 05:16:45,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 714 transitions, 10407 flow [2023-08-25 05:16:46,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 714 transitions, 9337 flow, removed 519 selfloop flow, removed 5 redundant places. [2023-08-25 05:16:46,021 INFO L231 Difference]: Finished difference. Result has 160 places, 418 transitions, 6654 flow [2023-08-25 05:16:46,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=3533, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6654, PETRI_PLACES=160, PETRI_TRANSITIONS=418} [2023-08-25 05:16:46,022 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 98 predicate places. [2023-08-25 05:16:46,022 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 418 transitions, 6654 flow [2023-08-25 05:16:46,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 243.05882352941177) internal successors, (4132), 17 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:46,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:46,023 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:46,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 05:16:46,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:46,227 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:46,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1580164627, now seen corresponding path program 3 times [2023-08-25 05:16:46,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:46,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862796007] [2023-08-25 05:16:46,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:46,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:46,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862796007] [2023-08-25 05:16:46,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862796007] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572757239] [2023-08-25 05:16:46,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:16:46,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:46,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:46,556 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) [2023-08-25 05:16:46,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 05:16:46,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-08-25 05:16:46,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:46,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-25 05:16:46,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:46,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:46,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:51,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:16:51,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572757239] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:51,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:51,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 4] total 15 [2023-08-25 05:16:51,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867763346] [2023-08-25 05:16:51,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:51,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 05:16:51,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:51,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 05:16:51,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-08-25 05:16:51,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:51,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 418 transitions, 6654 flow. Second operand has 17 states, 17 states have (on average 243.05882352941177) internal successors, (4132), 17 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:51,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:51,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:51,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:16:57,436 INFO L124 PetriNetUnfolderBase]: 10432/17591 cut-off events. [2023-08-25 05:16:57,436 INFO L125 PetriNetUnfolderBase]: For 151227/151227 co-relation queries the response was YES. [2023-08-25 05:16:57,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87656 conditions, 17591 events. 10432/17591 cut-off events. For 151227/151227 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 125595 event pairs, 1395 based on Foata normal form. 15/17606 useless extension candidates. Maximal degree in co-relation 87594. Up to 7793 conditions per place. [2023-08-25 05:16:57,553 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 407 selfloop transitions, 317 changer transitions 4/728 dead transitions. [2023-08-25 05:16:57,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 728 transitions, 11552 flow [2023-08-25 05:16:57,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 05:16:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 05:16:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5007 transitions. [2023-08-25 05:16:57,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40641233766233764 [2023-08-25 05:16:57,560 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5007 transitions. [2023-08-25 05:16:57,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5007 transitions. [2023-08-25 05:16:57,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:16:57,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5007 transitions. [2023-08-25 05:16:57,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.35) internal successors, (5007), 20 states have internal predecessors, (5007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:57,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 616.0) internal successors, (12936), 21 states have internal predecessors, (12936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:57,575 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 616.0) internal successors, (12936), 21 states have internal predecessors, (12936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:57,575 INFO L175 Difference]: Start difference. First operand has 160 places, 418 transitions, 6654 flow. Second operand 20 states and 5007 transitions. [2023-08-25 05:16:57,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 728 transitions, 11552 flow [2023-08-25 05:16:58,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 728 transitions, 11056 flow, removed 237 selfloop flow, removed 5 redundant places. [2023-08-25 05:16:58,157 INFO L231 Difference]: Finished difference. Result has 181 places, 532 transitions, 9613 flow [2023-08-25 05:16:58,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=6282, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9613, PETRI_PLACES=181, PETRI_TRANSITIONS=532} [2023-08-25 05:16:58,158 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 119 predicate places. [2023-08-25 05:16:58,158 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 532 transitions, 9613 flow [2023-08-25 05:16:58,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 243.05882352941177) internal successors, (4132), 17 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:58,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:16:58,159 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:16:58,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 05:16:58,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:58,365 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:16:58,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:16:58,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1427661339, now seen corresponding path program 4 times [2023-08-25 05:16:58,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:16:58,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111065234] [2023-08-25 05:16:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:16:58,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:16:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:16:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:58,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:16:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111065234] [2023-08-25 05:16:58,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111065234] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:16:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966561482] [2023-08-25 05:16:58,715 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 05:16:58,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:16:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:16:58,717 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:16:58,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 05:16:58,994 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 05:16:58,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:16:58,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 25 conjunts are in the unsatisfiable core [2023-08-25 05:16:58,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:16:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:16:59,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:16:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:16:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966561482] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:16:59,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:16:59,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 16 [2023-08-25 05:16:59,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99224275] [2023-08-25 05:16:59,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:16:59,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 05:16:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:16:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 05:16:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2023-08-25 05:16:59,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:16:59,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 532 transitions, 9613 flow. Second operand has 18 states, 18 states have (on average 242.88888888888889) internal successors, (4372), 18 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:16:59,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:16:59,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:16:59,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:17:02,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:17:06,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:17:12,776 INFO L124 PetriNetUnfolderBase]: 12954/21756 cut-off events. [2023-08-25 05:17:12,776 INFO L125 PetriNetUnfolderBase]: For 242703/242703 co-relation queries the response was YES. [2023-08-25 05:17:12,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115454 conditions, 21756 events. 12954/21756 cut-off events. For 242703/242703 co-relation queries the response was YES. Maximal size of possible extension queue 768. Compared 160883 event pairs, 1597 based on Foata normal form. 5/21761 useless extension candidates. Maximal degree in co-relation 115385. Up to 8830 conditions per place. [2023-08-25 05:17:12,945 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 502 selfloop transitions, 447 changer transitions 11/960 dead transitions. [2023-08-25 05:17:12,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 960 transitions, 16756 flow [2023-08-25 05:17:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-25 05:17:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-25 05:17:12,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 6750 transitions. [2023-08-25 05:17:12,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40584415584415584 [2023-08-25 05:17:12,952 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 6750 transitions. [2023-08-25 05:17:12,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 6750 transitions. [2023-08-25 05:17:12,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:17:12,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 6750 transitions. [2023-08-25 05:17:12,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 250.0) internal successors, (6750), 27 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:12,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 616.0) internal successors, (17248), 28 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:12,974 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 616.0) internal successors, (17248), 28 states have internal predecessors, (17248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:12,974 INFO L175 Difference]: Start difference. First operand has 181 places, 532 transitions, 9613 flow. Second operand 27 states and 6750 transitions. [2023-08-25 05:17:12,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 960 transitions, 16756 flow [2023-08-25 05:17:14,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 960 transitions, 16019 flow, removed 355 selfloop flow, removed 7 redundant places. [2023-08-25 05:17:14,084 INFO L231 Difference]: Finished difference. Result has 212 places, 691 transitions, 14014 flow [2023-08-25 05:17:14,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=9174, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=14014, PETRI_PLACES=212, PETRI_TRANSITIONS=691} [2023-08-25 05:17:14,085 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 150 predicate places. [2023-08-25 05:17:14,085 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 691 transitions, 14014 flow [2023-08-25 05:17:14,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 242.88888888888889) internal successors, (4372), 18 states have internal predecessors, (4372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:14,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:17:14,086 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:17:14,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 05:17:14,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 05:17:14,291 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:17:14,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:17:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1299646677, now seen corresponding path program 5 times [2023-08-25 05:17:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:17:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263824805] [2023-08-25 05:17:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:17:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:17:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:17:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:17:14,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:17:14,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263824805] [2023-08-25 05:17:14,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263824805] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:17:14,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157194216] [2023-08-25 05:17:14,689 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 05:17:14,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:17:14,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:17:14,693 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:17:14,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 05:17:14,901 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-25 05:17:14,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:17:14,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 26 conjunts are in the unsatisfiable core [2023-08-25 05:17:14,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:17:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:17:15,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:17:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:17:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157194216] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:17:15,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:17:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 17 [2023-08-25 05:17:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681770843] [2023-08-25 05:17:15,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:17:15,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 05:17:15,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:17:15,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 05:17:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-08-25 05:17:15,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:17:15,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 691 transitions, 14014 flow. Second operand has 19 states, 19 states have (on average 242.73684210526315) internal successors, (4612), 19 states have internal predecessors, (4612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:15,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:17:15,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:17:15,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:17:25,537 INFO L124 PetriNetUnfolderBase]: 19200/32157 cut-off events. [2023-08-25 05:17:25,538 INFO L125 PetriNetUnfolderBase]: For 469738/469738 co-relation queries the response was YES. [2023-08-25 05:17:25,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181392 conditions, 32157 events. 19200/32157 cut-off events. For 469738/469738 co-relation queries the response was YES. Maximal size of possible extension queue 1036. Compared 246798 event pairs, 2691 based on Foata normal form. 29/32186 useless extension candidates. Maximal degree in co-relation 181313. Up to 11296 conditions per place. [2023-08-25 05:17:25,866 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 713 selfloop transitions, 677 changer transitions 23/1413 dead transitions. [2023-08-25 05:17:25,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 1413 transitions, 27769 flow [2023-08-25 05:17:25,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-08-25 05:17:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-08-25 05:17:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 9245 transitions. [2023-08-25 05:17:25,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40562478062478063 [2023-08-25 05:17:25,876 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 9245 transitions. [2023-08-25 05:17:25,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 9245 transitions. [2023-08-25 05:17:25,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:17:25,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 9245 transitions. [2023-08-25 05:17:25,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 249.86486486486487) internal successors, (9245), 37 states have internal predecessors, (9245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:25,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 616.0) internal successors, (23408), 38 states have internal predecessors, (23408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:25,905 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 616.0) internal successors, (23408), 38 states have internal predecessors, (23408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:25,905 INFO L175 Difference]: Start difference. First operand has 212 places, 691 transitions, 14014 flow. Second operand 37 states and 9245 transitions. [2023-08-25 05:17:25,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 1413 transitions, 27769 flow [2023-08-25 05:17:28,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 1413 transitions, 25770 flow, removed 973 selfloop flow, removed 3 redundant places. [2023-08-25 05:17:28,412 INFO L231 Difference]: Finished difference. Result has 262 places, 1019 transitions, 22269 flow [2023-08-25 05:17:28,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=13129, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=22269, PETRI_PLACES=262, PETRI_TRANSITIONS=1019} [2023-08-25 05:17:28,413 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 200 predicate places. [2023-08-25 05:17:28,413 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 1019 transitions, 22269 flow [2023-08-25 05:17:28,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 242.73684210526315) internal successors, (4612), 19 states have internal predecessors, (4612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:28,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:17:28,414 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:17:28,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 05:17:28,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 05:17:28,619 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:17:28,619 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:17:28,619 INFO L85 PathProgramCache]: Analyzing trace with hash 865209945, now seen corresponding path program 6 times [2023-08-25 05:17:28,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:17:28,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495780310] [2023-08-25 05:17:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:17:28,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:17:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:17:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:17:28,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:17:28,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495780310] [2023-08-25 05:17:28,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495780310] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:17:28,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322401516] [2023-08-25 05:17:28,674 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 05:17:28,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:17:28,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:17:28,675 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:17:28,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 05:17:28,895 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 05:17:28,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:17:28,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:17:28,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:17:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:17:28,927 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:17:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:17:28,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322401516] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:17:28,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:17:28,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-08-25 05:17:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116173214] [2023-08-25 05:17:28,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:17:28,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:17:28,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:17:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:17:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:17:28,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:17:28,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 1019 transitions, 22269 flow. Second operand has 6 states, 6 states have (on average 253.5) internal successors, (1521), 6 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:28,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:17:28,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:17:28,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:17:44,094 INFO L124 PetriNetUnfolderBase]: 31401/52784 cut-off events. [2023-08-25 05:17:44,094 INFO L125 PetriNetUnfolderBase]: For 859333/859333 co-relation queries the response was YES. [2023-08-25 05:17:44,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303466 conditions, 52784 events. 31401/52784 cut-off events. For 859333/859333 co-relation queries the response was YES. Maximal size of possible extension queue 1659. Compared 437841 event pairs, 5251 based on Foata normal form. 112/52896 useless extension candidates. Maximal degree in co-relation 303370. Up to 20197 conditions per place. [2023-08-25 05:17:45,116 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1906 selfloop transitions, 487 changer transitions 5/2398 dead transitions. [2023-08-25 05:17:45,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 2398 transitions, 53892 flow [2023-08-25 05:17:45,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:17:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:17:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2092 transitions. [2023-08-25 05:17:45,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.424512987012987 [2023-08-25 05:17:45,120 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2092 transitions. [2023-08-25 05:17:45,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2092 transitions. [2023-08-25 05:17:45,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:17:45,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2092 transitions. [2023-08-25 05:17:45,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 261.5) internal successors, (2092), 8 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:45,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 616.0) internal successors, (5544), 9 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:45,126 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 616.0) internal successors, (5544), 9 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:45,126 INFO L175 Difference]: Start difference. First operand has 262 places, 1019 transitions, 22269 flow. Second operand 8 states and 2092 transitions. [2023-08-25 05:17:45,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 2398 transitions, 53892 flow [2023-08-25 05:17:52,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 2398 transitions, 49669 flow, removed 2073 selfloop flow, removed 6 redundant places. [2023-08-25 05:17:52,532 INFO L231 Difference]: Finished difference. Result has 268 places, 1382 transitions, 31829 flow [2023-08-25 05:17:52,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=20775, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1019, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=611, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=31829, PETRI_PLACES=268, PETRI_TRANSITIONS=1382} [2023-08-25 05:17:52,533 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 206 predicate places. [2023-08-25 05:17:52,533 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 1382 transitions, 31829 flow [2023-08-25 05:17:52,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.5) internal successors, (1521), 6 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:52,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:17:52,533 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:17:52,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 05:17:52,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 05:17:52,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:17:52,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:17:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash -234279621, now seen corresponding path program 7 times [2023-08-25 05:17:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:17:52,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926488886] [2023-08-25 05:17:52,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:17:52,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:17:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:17:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:17:52,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:17:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926488886] [2023-08-25 05:17:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926488886] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:17:52,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674475317] [2023-08-25 05:17:52,789 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 05:17:52,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:17:52,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:17:52,790 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:17:52,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 05:17:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:17:52,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:17:52,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:17:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:17:52,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:17:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:17:52,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674475317] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:17:52,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:17:52,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-25 05:17:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237795466] [2023-08-25 05:17:52,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:17:52,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:17:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:17:52,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:17:52,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:17:52,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:17:52,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 1382 transitions, 31829 flow. Second operand has 5 states, 5 states have (on average 254.2) internal successors, (1271), 5 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:17:52,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:17:52,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:17:52,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:18:12,323 INFO L124 PetriNetUnfolderBase]: 32218/55308 cut-off events. [2023-08-25 05:18:12,323 INFO L125 PetriNetUnfolderBase]: For 911586/911586 co-relation queries the response was YES. [2023-08-25 05:18:13,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326637 conditions, 55308 events. 32218/55308 cut-off events. For 911586/911586 co-relation queries the response was YES. Maximal size of possible extension queue 1813. Compared 475170 event pairs, 4595 based on Foata normal form. 172/55480 useless extension candidates. Maximal degree in co-relation 326536. Up to 13724 conditions per place. [2023-08-25 05:18:13,452 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1415 selfloop transitions, 787 changer transitions 0/2202 dead transitions. [2023-08-25 05:18:13,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 2202 transitions, 52113 flow [2023-08-25 05:18:13,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:18:13,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:18:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1827 transitions. [2023-08-25 05:18:13,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4237012987012987 [2023-08-25 05:18:13,454 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1827 transitions. [2023-08-25 05:18:13,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1827 transitions. [2023-08-25 05:18:13,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:18:13,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1827 transitions. [2023-08-25 05:18:13,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:13,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:13,459 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:13,459 INFO L175 Difference]: Start difference. First operand has 268 places, 1382 transitions, 31829 flow. Second operand 7 states and 1827 transitions. [2023-08-25 05:18:13,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 2202 transitions, 52113 flow [2023-08-25 05:18:23,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 2202 transitions, 51657 flow, removed 228 selfloop flow, removed 0 redundant places. [2023-08-25 05:18:23,629 INFO L231 Difference]: Finished difference. Result has 276 places, 1590 transitions, 38975 flow [2023-08-25 05:18:23,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=31286, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=597, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=38975, PETRI_PLACES=276, PETRI_TRANSITIONS=1590} [2023-08-25 05:18:23,630 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 214 predicate places. [2023-08-25 05:18:23,630 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 1590 transitions, 38975 flow [2023-08-25 05:18:23,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.2) internal successors, (1271), 5 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:23,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:18:23,630 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:18:23,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-25 05:18:23,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:18:23,832 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:18:23,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:18:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash -772508161, now seen corresponding path program 8 times [2023-08-25 05:18:23,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:18:23,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467084724] [2023-08-25 05:18:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:18:23,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:18:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:18:23,887 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:18:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:18:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467084724] [2023-08-25 05:18:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467084724] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:18:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870274532] [2023-08-25 05:18:23,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:18:23,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:18:23,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:18:23,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:18:23,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 05:18:24,015 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:18:24,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:18:24,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:18:24,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:18:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:18:24,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:18:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:18:24,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870274532] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:18:24,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:18:24,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-08-25 05:18:24,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263688157] [2023-08-25 05:18:24,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:18:24,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:18:24,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:18:24,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:18:24,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:18:24,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:18:24,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 1590 transitions, 38975 flow. Second operand has 6 states, 6 states have (on average 253.5) internal successors, (1521), 6 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:24,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:18:24,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:18:24,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:18:48,737 INFO L124 PetriNetUnfolderBase]: 35106/60382 cut-off events. [2023-08-25 05:18:48,737 INFO L125 PetriNetUnfolderBase]: For 1134942/1134942 co-relation queries the response was YES. [2023-08-25 05:18:49,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371574 conditions, 60382 events. 35106/60382 cut-off events. For 1134942/1134942 co-relation queries the response was YES. Maximal size of possible extension queue 2114. Compared 527990 event pairs, 6428 based on Foata normal form. 778/61160 useless extension candidates. Maximal degree in co-relation 371470. Up to 16733 conditions per place. [2023-08-25 05:18:50,041 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1759 selfloop transitions, 722 changer transitions 0/2481 dead transitions. [2023-08-25 05:18:50,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 2481 transitions, 60442 flow [2023-08-25 05:18:50,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:18:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:18:50,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1829 transitions. [2023-08-25 05:18:50,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42416512059369205 [2023-08-25 05:18:50,044 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1829 transitions. [2023-08-25 05:18:50,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1829 transitions. [2023-08-25 05:18:50,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:18:50,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1829 transitions. [2023-08-25 05:18:50,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 261.2857142857143) internal successors, (1829), 7 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:50,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:50,049 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:18:50,050 INFO L175 Difference]: Start difference. First operand has 276 places, 1590 transitions, 38975 flow. Second operand 7 states and 1829 transitions. [2023-08-25 05:18:50,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 2481 transitions, 60442 flow [2023-08-25 05:19:03,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 2481 transitions, 60331 flow, removed 52 selfloop flow, removed 1 redundant places. [2023-08-25 05:19:03,108 INFO L231 Difference]: Finished difference. Result has 286 places, 1716 transitions, 45317 flow [2023-08-25 05:19:03,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=37381, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=559, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=45317, PETRI_PLACES=286, PETRI_TRANSITIONS=1716} [2023-08-25 05:19:03,110 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 224 predicate places. [2023-08-25 05:19:03,110 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 1716 transitions, 45317 flow [2023-08-25 05:19:03,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.5) internal successors, (1521), 6 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:03,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:19:03,110 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:19:03,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 05:19:03,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:19:03,315 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:19:03,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:19:03,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1368047871, now seen corresponding path program 9 times [2023-08-25 05:19:03,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:19:03,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512722132] [2023-08-25 05:19:03,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:19:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:19:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:19:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 05:19:03,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:19:03,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512722132] [2023-08-25 05:19:03,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512722132] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:19:03,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151158746] [2023-08-25 05:19:03,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:19:03,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:19:03,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:19:03,374 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:19:03,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 05:19:03,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 05:19:03,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:19:03,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:19:03,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:19:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 05:19:03,544 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:19:03,609 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 05:19:03,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151158746] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:19:03,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:19:03,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-25 05:19:03,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355486987] [2023-08-25 05:19:03,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:19:03,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:19:03,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:19:03,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:19:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:19:03,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:19:03,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 1716 transitions, 45317 flow. Second operand has 5 states, 5 states have (on average 254.0) internal successors, (1270), 5 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:03,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:19:03,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:19:03,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:19:30,957 INFO L124 PetriNetUnfolderBase]: 34474/59177 cut-off events. [2023-08-25 05:19:30,958 INFO L125 PetriNetUnfolderBase]: For 1312328/1312328 co-relation queries the response was YES. [2023-08-25 05:19:32,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391584 conditions, 59177 events. 34474/59177 cut-off events. For 1312328/1312328 co-relation queries the response was YES. Maximal size of possible extension queue 2126. Compared 515205 event pairs, 7267 based on Foata normal form. 284/59461 useless extension candidates. Maximal degree in co-relation 391476. Up to 25095 conditions per place. [2023-08-25 05:19:32,361 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 2026 selfloop transitions, 540 changer transitions 0/2566 dead transitions. [2023-08-25 05:19:32,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 2566 transitions, 62304 flow [2023-08-25 05:19:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:19:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:19:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1823 transitions. [2023-08-25 05:19:32,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42277365491651203 [2023-08-25 05:19:32,363 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1823 transitions. [2023-08-25 05:19:32,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1823 transitions. [2023-08-25 05:19:32,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:19:32,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1823 transitions. [2023-08-25 05:19:32,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 260.42857142857144) internal successors, (1823), 7 states have internal predecessors, (1823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:32,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:32,368 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:32,368 INFO L175 Difference]: Start difference. First operand has 286 places, 1716 transitions, 45317 flow. Second operand 7 states and 1823 transitions. [2023-08-25 05:19:32,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 2566 transitions, 62304 flow [2023-08-25 05:19:47,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 2566 transitions, 62025 flow, removed 53 selfloop flow, removed 1 redundant places. [2023-08-25 05:19:47,216 INFO L231 Difference]: Finished difference. Result has 295 places, 1684 transitions, 45475 flow [2023-08-25 05:19:47,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=43166, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=522, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=45475, PETRI_PLACES=295, PETRI_TRANSITIONS=1684} [2023-08-25 05:19:47,218 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 233 predicate places. [2023-08-25 05:19:47,218 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 1684 transitions, 45475 flow [2023-08-25 05:19:47,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.0) internal successors, (1270), 5 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:47,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:19:47,219 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:19:47,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 05:19:47,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-08-25 05:19:47,424 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:19:47,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:19:47,425 INFO L85 PathProgramCache]: Analyzing trace with hash -112554371, now seen corresponding path program 10 times [2023-08-25 05:19:47,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:19:47,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238836849] [2023-08-25 05:19:47,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:19:47,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:19:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:19:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:19:47,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:19:47,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238836849] [2023-08-25 05:19:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238836849] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:19:47,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169002856] [2023-08-25 05:19:47,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 05:19:47,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:19:47,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:19:47,862 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:19:47,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-25 05:19:48,202 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 05:19:48,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:19:48,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 33 conjunts are in the unsatisfiable core [2023-08-25 05:19:48,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:19:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:19:48,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:19:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 05:19:52,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169002856] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:19:52,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:19:52,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 22 [2023-08-25 05:19:52,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089536483] [2023-08-25 05:19:52,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:19:52,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 05:19:52,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:19:52,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 05:19:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=448, Unknown=1, NotChecked=0, Total=552 [2023-08-25 05:19:52,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:19:52,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 1684 transitions, 45475 flow. Second operand has 24 states, 24 states have (on average 242.33333333333334) internal successors, (5816), 24 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:19:52,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:19:52,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:19:52,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:20:05,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:20:41,841 INFO L124 PetriNetUnfolderBase]: 39439/67600 cut-off events. [2023-08-25 05:20:41,841 INFO L125 PetriNetUnfolderBase]: For 1627732/1627732 co-relation queries the response was YES. [2023-08-25 05:20:43,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462533 conditions, 67600 events. 39439/67600 cut-off events. For 1627732/1627732 co-relation queries the response was YES. Maximal size of possible extension queue 2397. Compared 595169 event pairs, 6623 based on Foata normal form. 16/67616 useless extension candidates. Maximal degree in co-relation 462422. Up to 32968 conditions per place. [2023-08-25 05:20:43,618 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1153 selfloop transitions, 1194 changer transitions 34/2381 dead transitions. [2023-08-25 05:20:43,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 2381 transitions, 63323 flow [2023-08-25 05:20:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-25 05:20:43,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-25 05:20:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 8754 transitions. [2023-08-25 05:20:43,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40602968460111316 [2023-08-25 05:20:43,626 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 8754 transitions. [2023-08-25 05:20:43,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 8754 transitions. [2023-08-25 05:20:43,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:20:43,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 8754 transitions. [2023-08-25 05:20:43,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 250.11428571428573) internal successors, (8754), 35 states have internal predecessors, (8754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:20:43,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 616.0) internal successors, (22176), 36 states have internal predecessors, (22176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:20:43,649 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 616.0) internal successors, (22176), 36 states have internal predecessors, (22176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:20:43,649 INFO L175 Difference]: Start difference. First operand has 295 places, 1684 transitions, 45475 flow. Second operand 35 states and 8754 transitions. [2023-08-25 05:20:43,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 2381 transitions, 63323 flow [2023-08-25 05:21:04,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 2381 transitions, 62915 flow, removed 36 selfloop flow, removed 1 redundant places. [2023-08-25 05:21:04,190 INFO L231 Difference]: Finished difference. Result has 340 places, 1976 transitions, 58585 flow [2023-08-25 05:21:04,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=45194, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=912, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=58585, PETRI_PLACES=340, PETRI_TRANSITIONS=1976} [2023-08-25 05:21:04,192 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 278 predicate places. [2023-08-25 05:21:04,192 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 1976 transitions, 58585 flow [2023-08-25 05:21:04,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 242.33333333333334) internal successors, (5816), 24 states have internal predecessors, (5816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:21:04,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:21:04,193 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:21:04,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-25 05:21:04,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:21:04,399 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:21:04,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:21:04,399 INFO L85 PathProgramCache]: Analyzing trace with hash 976237281, now seen corresponding path program 11 times [2023-08-25 05:21:04,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:21:04,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591488872] [2023-08-25 05:21:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:21:04,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:21:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:21:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:21:04,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:21:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591488872] [2023-08-25 05:21:04,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591488872] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:21:04,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340306801] [2023-08-25 05:21:04,454 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 05:21:04,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:21:04,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:21:04,455 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:21:04,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-25 05:21:04,580 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-08-25 05:21:04,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:21:04,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:21:04,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:21:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:21:04,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:21:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:21:04,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340306801] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:21:04,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:21:04,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-08-25 05:21:04,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074843751] [2023-08-25 05:21:04,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:21:04,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:21:04,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:21:04,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:21:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:21:04,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:21:04,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 1976 transitions, 58585 flow. Second operand has 6 states, 6 states have (on average 254.0) internal successors, (1524), 6 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:21:04,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:21:04,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:21:04,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:21:44,759 INFO L124 PetriNetUnfolderBase]: 43432/74551 cut-off events. [2023-08-25 05:21:44,759 INFO L125 PetriNetUnfolderBase]: For 2095568/2095568 co-relation queries the response was YES. [2023-08-25 05:21:46,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526712 conditions, 74551 events. 43432/74551 cut-off events. For 2095568/2095568 co-relation queries the response was YES. Maximal size of possible extension queue 2545. Compared 666215 event pairs, 8128 based on Foata normal form. 892/75443 useless extension candidates. Maximal degree in co-relation 526590. Up to 38846 conditions per place. [2023-08-25 05:21:46,938 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1710 selfloop transitions, 1085 changer transitions 0/2795 dead transitions. [2023-08-25 05:21:46,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 2795 transitions, 82809 flow [2023-08-25 05:21:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:21:46,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:21:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1836 transitions. [2023-08-25 05:21:46,940 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42578849721706863 [2023-08-25 05:21:46,940 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1836 transitions. [2023-08-25 05:21:46,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1836 transitions. [2023-08-25 05:21:46,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:21:46,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1836 transitions. [2023-08-25 05:21:46,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 262.2857142857143) internal successors, (1836), 7 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:21:46,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:21:46,945 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:21:46,945 INFO L175 Difference]: Start difference. First operand has 340 places, 1976 transitions, 58585 flow. Second operand 7 states and 1836 transitions. [2023-08-25 05:21:46,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 2795 transitions, 82809 flow [2023-08-25 05:22:11,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 2795 transitions, 81036 flow, removed 828 selfloop flow, removed 12 redundant places. [2023-08-25 05:22:11,282 INFO L231 Difference]: Finished difference. Result has 340 places, 2173 transitions, 67691 flow [2023-08-25 05:22:11,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=56885, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=873, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1043, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=67691, PETRI_PLACES=340, PETRI_TRANSITIONS=2173} [2023-08-25 05:22:11,284 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 278 predicate places. [2023-08-25 05:22:11,284 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 2173 transitions, 67691 flow [2023-08-25 05:22:11,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.0) internal successors, (1524), 6 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:22:11,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:22:11,285 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:22:11,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-25 05:22:11,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:22:11,490 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:22:11,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:22:11,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1533996335, now seen corresponding path program 12 times [2023-08-25 05:22:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:22:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055287974] [2023-08-25 05:22:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:22:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:22:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:22:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-25 05:22:11,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:22:11,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055287974] [2023-08-25 05:22:11,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055287974] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:22:11,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795181450] [2023-08-25 05:22:11,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 05:22:11,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:22:11,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:22:11,549 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:22:11,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-25 05:22:11,690 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-08-25 05:22:11,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:22:11,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:22:11,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:22:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-25 05:22:11,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:22:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-25 05:22:11,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795181450] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:22:11,754 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:22:11,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-25 05:22:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490160060] [2023-08-25 05:22:11,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:22:11,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:22:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:22:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:22:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:22:11,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:22:11,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 2173 transitions, 67691 flow. Second operand has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:22:11,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:22:11,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:22:11,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:22:57,478 INFO L124 PetriNetUnfolderBase]: 43789/75451 cut-off events. [2023-08-25 05:22:57,478 INFO L125 PetriNetUnfolderBase]: For 2286307/2286307 co-relation queries the response was YES. [2023-08-25 05:22:59,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 556952 conditions, 75451 events. 43789/75451 cut-off events. For 2286307/2286307 co-relation queries the response was YES. Maximal size of possible extension queue 2570. Compared 678216 event pairs, 10547 based on Foata normal form. 24/75475 useless extension candidates. Maximal degree in co-relation 556827. Up to 48273 conditions per place. [2023-08-25 05:22:59,564 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1852 selfloop transitions, 463 changer transitions 0/2315 dead transitions. [2023-08-25 05:22:59,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 2315 transitions, 74717 flow [2023-08-25 05:22:59,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:22:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:22:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1819 transitions. [2023-08-25 05:22:59,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42184601113172543 [2023-08-25 05:22:59,566 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1819 transitions. [2023-08-25 05:22:59,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1819 transitions. [2023-08-25 05:22:59,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:22:59,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1819 transitions. [2023-08-25 05:22:59,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:22:59,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:22:59,571 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:22:59,571 INFO L175 Difference]: Start difference. First operand has 340 places, 2173 transitions, 67691 flow. Second operand 7 states and 1819 transitions. [2023-08-25 05:22:59,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 2315 transitions, 74717 flow [2023-08-25 05:23:29,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 2315 transitions, 74427 flow, removed 145 selfloop flow, removed 0 redundant places. [2023-08-25 05:23:29,057 INFO L231 Difference]: Finished difference. Result has 349 places, 2191 transitions, 69410 flow [2023-08-25 05:23:29,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=66612, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=69410, PETRI_PLACES=349, PETRI_TRANSITIONS=2191} [2023-08-25 05:23:29,059 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 287 predicate places. [2023-08-25 05:23:29,059 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 2191 transitions, 69410 flow [2023-08-25 05:23:29,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.6) internal successors, (1273), 5 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:23:29,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:23:29,059 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:23:29,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-25 05:23:29,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-25 05:23:29,260 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:23:29,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:23:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1271304957, now seen corresponding path program 13 times [2023-08-25 05:23:29,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:23:29,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422371987] [2023-08-25 05:23:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:23:29,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:23:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:23:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:23:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:23:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422371987] [2023-08-25 05:23:29,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422371987] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:23:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976941392] [2023-08-25 05:23:29,315 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 05:23:29,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:23:29,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:23:29,316 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:23:29,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-25 05:23:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:23:29,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:23:29,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:23:29,465 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:23:29,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:23:29,495 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 05:23:29,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976941392] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:23:29,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:23:29,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-08-25 05:23:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060426704] [2023-08-25 05:23:29,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:23:29,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:23:29,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:23:29,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:23:29,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:23:29,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:23:29,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 2191 transitions, 69410 flow. Second operand has 6 states, 6 states have (on average 253.83333333333334) internal successors, (1523), 6 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:23:29,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:23:29,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:23:29,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:24:32,173 INFO L124 PetriNetUnfolderBase]: 57246/98151 cut-off events. [2023-08-25 05:24:32,173 INFO L125 PetriNetUnfolderBase]: For 3223380/3223380 co-relation queries the response was YES. [2023-08-25 05:24:34,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736404 conditions, 98151 events. 57246/98151 cut-off events. For 3223380/3223380 co-relation queries the response was YES. Maximal size of possible extension queue 2882. Compared 897204 event pairs, 16663 based on Foata normal form. 646/98797 useless extension candidates. Maximal degree in co-relation 736275. Up to 25783 conditions per place. [2023-08-25 05:24:35,015 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1818 selfloop transitions, 1142 changer transitions 120/3080 dead transitions. [2023-08-25 05:24:35,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 3080 transitions, 93879 flow [2023-08-25 05:24:35,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 05:24:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 05:24:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2082 transitions. [2023-08-25 05:24:35,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4224837662337662 [2023-08-25 05:24:35,017 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2082 transitions. [2023-08-25 05:24:35,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2082 transitions. [2023-08-25 05:24:35,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:24:35,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2082 transitions. [2023-08-25 05:24:35,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 260.25) internal successors, (2082), 8 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:35,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 616.0) internal successors, (5544), 9 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:35,022 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 616.0) internal successors, (5544), 9 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:24:35,023 INFO L175 Difference]: Start difference. First operand has 349 places, 2191 transitions, 69410 flow. Second operand 8 states and 2082 transitions. [2023-08-25 05:24:35,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 3080 transitions, 93879 flow [2023-08-25 05:25:17,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 3080 transitions, 92639 flow, removed 192 selfloop flow, removed 1 redundant places. [2023-08-25 05:25:17,879 INFO L231 Difference]: Finished difference. Result has 360 places, 2346 transitions, 77242 flow [2023-08-25 05:25:17,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=61392, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=886, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=979, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=77242, PETRI_PLACES=360, PETRI_TRANSITIONS=2346} [2023-08-25 05:25:17,880 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 298 predicate places. [2023-08-25 05:25:17,880 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 2346 transitions, 77242 flow [2023-08-25 05:25:17,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.83333333333334) internal successors, (1523), 6 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:17,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:25:17,881 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:25:17,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-25 05:25:18,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:25:18,081 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:25:18,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:25:18,082 INFO L85 PathProgramCache]: Analyzing trace with hash 97011755, now seen corresponding path program 14 times [2023-08-25 05:25:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:25:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956155769] [2023-08-25 05:25:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:25:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:25:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:25:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 05:25:18,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:25:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956155769] [2023-08-25 05:25:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956155769] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:25:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971502436] [2023-08-25 05:25:18,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:25:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:25:18,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:25:18,131 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:25:18,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-25 05:25:18,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:25:18,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:25:18,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-25 05:25:18,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:25:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 05:25:18,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:25:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 05:25:18,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971502436] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:25:18,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:25:18,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2023-08-25 05:25:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319079140] [2023-08-25 05:25:18,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:25:18,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:25:18,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:25:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:25:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:25:18,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 616 [2023-08-25 05:25:18,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 2346 transitions, 77242 flow. Second operand has 5 states, 5 states have (on average 254.4) internal successors, (1272), 5 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:25:18,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:25:18,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 616 [2023-08-25 05:25:18,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:26:22,117 INFO L124 PetriNetUnfolderBase]: 56145/96587 cut-off events. [2023-08-25 05:26:22,117 INFO L125 PetriNetUnfolderBase]: For 3584803/3584803 co-relation queries the response was YES. [2023-08-25 05:26:24,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746748 conditions, 96587 events. 56145/96587 cut-off events. For 3584803/3584803 co-relation queries the response was YES. Maximal size of possible extension queue 2763. Compared 887354 event pairs, 11182 based on Foata normal form. 1492/98079 useless extension candidates. Maximal degree in co-relation 746614. Up to 30520 conditions per place. [2023-08-25 05:26:24,989 INFO L140 encePairwiseOnDemand]: 609/616 looper letters, 1684 selfloop transitions, 1586 changer transitions 0/3270 dead transitions. [2023-08-25 05:26:24,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 3270 transitions, 106094 flow [2023-08-25 05:26:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:26:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:26:24,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1829 transitions. [2023-08-25 05:26:24,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42416512059369205 [2023-08-25 05:26:24,991 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1829 transitions. [2023-08-25 05:26:24,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1829 transitions. [2023-08-25 05:26:24,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:26:24,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1829 transitions. [2023-08-25 05:26:24,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 261.2857142857143) internal successors, (1829), 7 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:24,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:24,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 616.0) internal successors, (4928), 8 states have internal predecessors, (4928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:26:24,994 INFO L175 Difference]: Start difference. First operand has 360 places, 2346 transitions, 77242 flow. Second operand 7 states and 1829 transitions. [2023-08-25 05:26:24,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 3270 transitions, 106094 flow [2023-08-25 05:27:22,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 3270 transitions, 104871 flow, removed 513 selfloop flow, removed 7 redundant places. [2023-08-25 05:27:22,779 INFO L231 Difference]: Finished difference. Result has 361 places, 2522 transitions, 86819 flow [2023-08-25 05:27:22,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=616, PETRI_DIFFERENCE_MINUEND_FLOW=75992, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=835, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=86819, PETRI_PLACES=361, PETRI_TRANSITIONS=2522} [2023-08-25 05:27:22,781 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 299 predicate places. [2023-08-25 05:27:22,781 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 2522 transitions, 86819 flow [2023-08-25 05:27:22,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 254.4) internal successors, (1272), 5 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:22,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:27:22,782 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:27:22,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-08-25 05:27:22,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:27:22,982 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-08-25 05:27:22,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:27:22,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1098784954, now seen corresponding path program 15 times [2023-08-25 05:27:22,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:27:22,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041230615] [2023-08-25 05:27:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:27:22,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:27:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:27:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:27:23,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:27:23,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041230615] [2023-08-25 05:27:23,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041230615] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:27:23,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666661518] [2023-08-25 05:27:23,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:27:23,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:27:23,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:27:23,361 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:27:23,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-25 05:27:23,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-08-25 05:27:23,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:27:23,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 38 conjunts are in the unsatisfiable core [2023-08-25 05:27:23,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:27:23,985 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:27:23,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:27:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:27:31,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666661518] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:27:31,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:27:31,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 25 [2023-08-25 05:27:31,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733433448] [2023-08-25 05:27:31,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:27:31,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 05:27:31,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:27:31,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 05:27:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=574, Unknown=2, NotChecked=0, Total=702 [2023-08-25 05:27:31,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 616 [2023-08-25 05:27:31,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 2522 transitions, 86819 flow. Second operand has 27 states, 27 states have (on average 242.14814814814815) internal successors, (6538), 27 states have internal predecessors, (6538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:27:31,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:27:31,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 616 [2023-08-25 05:27:31,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:27:51,613 WARN L234 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 89 DAG size of output: 63 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 05:28:07,590 WARN L234 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 87 DAG size of output: 56 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 05:28:19,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:28:24,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:29:14,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:29:16,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-08-25 05:29:18,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-08-25 05:29:20,534 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 05:29:20,534 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 [2023-08-25 05:29:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-08-25 05:29:21,428 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (57 of 58 remaining) [2023-08-25 05:29:21,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-08-25 05:29:21,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-25 05:29:21,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:29:21,629 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). [2023-08-25 05:29:21,630 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-08-25 05:29:21,630 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-08-25 05:29:21,630 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-08-25 05:29:21,630 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-08-25 05:29:21,631 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-08-25 05:29:21,632 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-08-25 05:29:21,633 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-08-25 05:29:21,634 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-08-25 05:29:21,635 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-08-25 05:29:21,636 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2023-08-25 05:29:21,636 INFO L445 BasicCegarLoop]: Path program histogram: [15, 3, 2, 2, 1, 1, 1, 1, 1] [2023-08-25 05:29:21,643 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:29:21,643 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:29:21,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:29:21 BasicIcfg [2023-08-25 05:29:21,646 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:29:21,647 INFO L158 Benchmark]: Toolchain (without parser) took 789031.94ms. Allocated memory was 360.7MB in the beginning and 14.5GB in the end (delta: 14.2GB). Free memory was 338.9MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 7.5GB. Max. memory is 16.0GB. [2023-08-25 05:29:21,647 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 338.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:29:21,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.10ms. Allocated memory is still 360.7MB. Free memory was 338.9MB in the beginning and 327.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 05:29:21,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.03ms. Allocated memory is still 360.7MB. Free memory was 327.1MB in the beginning and 325.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:29:21,648 INFO L158 Benchmark]: Boogie Preprocessor took 47.30ms. Allocated memory is still 360.7MB. Free memory was 325.0MB in the beginning and 323.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:29:21,648 INFO L158 Benchmark]: RCFGBuilder took 529.89ms. Allocated memory is still 360.7MB. Free memory was 323.4MB in the beginning and 302.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 05:29:21,648 INFO L158 Benchmark]: TraceAbstraction took 788135.34ms. Allocated memory was 360.7MB in the beginning and 14.5GB in the end (delta: 14.2GB). Free memory was 301.4MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2023-08-25 05:29:21,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 360.7MB. Free memory is still 338.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 259.10ms. Allocated memory is still 360.7MB. Free memory was 338.9MB in the beginning and 327.1MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 55.03ms. Allocated memory is still 360.7MB. Free memory was 327.1MB in the beginning and 325.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.30ms. Allocated memory is still 360.7MB. Free memory was 325.0MB in the beginning and 323.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 529.89ms. Allocated memory is still 360.7MB. Free memory was 323.4MB in the beginning and 302.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 788135.34ms. Allocated memory was 360.7MB in the beginning and 14.5GB in the end (delta: 14.2GB). Free memory was 301.4MB in the beginning and 8.4GB in the end (delta: -8.1GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 262 PlacesBefore, 62 PlacesAfterwards, 267 TransitionsBefore, 61 TransitionsAfterwards, 7006 CoEnabledTransitionPairs, 9 FixpointIterations, 190 TrivialSequentialCompositions, 121 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 338 TotalNumberOfCompositions, 13386 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8754, independent: 8498, independent conditional: 0, independent unconditional: 8498, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4309, independent: 4266, independent conditional: 0, independent unconditional: 4266, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8754, independent: 4232, independent conditional: 0, independent unconditional: 4232, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 4309, unknown conditional: 0, unknown unconditional: 4309] , Statistics on independence cache: Total cache size (in pairs): 214, Positive cache size: 194, Positive conditional cache size: 0, Positive unconditional cache size: 194, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 44]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 41]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (27states, 239/616 universal loopers) in iteration 27,while PetriNetUnfolder was constructing finite prefix that currently has 269808 conditions, 37165 events (22119/37164 cut-off events. For 1237832/1237832 co-relation queries the response was YES. Maximal size of possible extension queue 2902. Compared 329801 event pairs, 3732 based on Foata normal form. 0/40050 useless extension candidates. Maximal degree in co-relation 269678. Up to 18103 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 358 locations, 58 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 788.0s, OverallIterations: 27, TraceHistogramMax: 6, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 745.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 3130 SdHoareTripleChecker+Valid, 43.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3130 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 41.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 332 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14199 IncrementalHoareTripleChecker+Invalid, 14537 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 332 mSolverCounterUnsat, 0 mSDtfsCounter, 14199 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1301 GetRequests, 856 SyntacticMatches, 49 SemanticMatches, 396 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3885 ImplicationChecksByTransitivity, 103.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86819occurred in iteration=26, InterpolantAutomatonStates: 294, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 26.9s InterpolantComputationTime, 1110 NumberOfCodeBlocks, 1108 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 1556 ConstructedInterpolants, 0 QuantifiedInterpolants, 28133 SizeOfPredicates, 59 NumberOfNonLiveVariables, 4397 ConjunctsInSsa, 302 ConjunctsInUnsatCore, 65 InterpolantComputations, 8 PerfectInterpolantSequences, 318/772 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown