/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 09:25:11,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 09:25:11,551 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 09:25:11,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 09:25:11,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 09:25:11,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 09:25:11,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 09:25:11,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 09:25:11,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 09:25:11,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 09:25:11,594 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 09:25:11,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 09:25:11,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 09:25:11,596 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 09:25:11,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 09:25:11,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 09:25:11,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 09:25:11,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 09:25:11,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 09:25:11,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 09:25:11,598 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 09:25:11,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 09:25:11,602 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 09:25:11,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 09:25:11,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 09:25:11,605 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 09:25:11,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 09:25:11,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:25:11,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 09:25:11,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 09:25:11,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 09:25:11,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 09:25:11,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 09:25:11,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 09:25:11,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 09:25:11,608 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 09:25:11,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 09:25:11,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 09:25:11,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 09:25:11,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 09:25:11,936 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 09:25:11,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-26 09:25:13,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 09:25:13,255 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 09:25:13,256 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2023-08-26 09:25:13,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d835d3d9/ebb51a3f4cda4718995642734164054f/FLAGf59f328f1 [2023-08-26 09:25:13,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d835d3d9/ebb51a3f4cda4718995642734164054f [2023-08-26 09:25:13,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 09:25:13,276 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 09:25:13,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 09:25:13,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 09:25:13,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 09:25:13,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44044953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13, skipping insertion in model container [2023-08-26 09:25:13,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,303 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 09:25:13,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:25:13,488 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 09:25:13,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 09:25:13,547 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:25:13,547 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 09:25:13,552 INFO L206 MainTranslator]: Completed translation [2023-08-26 09:25:13,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13 WrapperNode [2023-08-26 09:25:13,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 09:25:13,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 09:25:13,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 09:25:13,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 09:25:13,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,618 INFO L138 Inliner]: procedures = 23, calls = 71, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 418 [2023-08-26 09:25:13,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 09:25:13,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 09:25:13,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 09:25:13,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 09:25:13,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 09:25:13,673 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 09:25:13,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 09:25:13,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 09:25:13,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (1/1) ... [2023-08-26 09:25:13,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 09:25:13,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 09:25:13,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 09:25:13,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 09:25:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 09:25:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 09:25:13,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 09:25:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 09:25:13,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 09:25:13,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 09:25:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 09:25:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-26 09:25:13,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-26 09:25:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 09:25:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 09:25:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 09:25:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 09:25:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 09:25:13,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 09:25:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 09:25:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 09:25:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 09:25:13,759 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 09:25:13,880 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 09:25:13,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 09:25:14,383 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 09:25:14,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 09:25:14,604 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 09:25:14,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:25:14 BoogieIcfgContainer [2023-08-26 09:25:14,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 09:25:14,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 09:25:14,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 09:25:14,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 09:25:14,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 09:25:13" (1/3) ... [2023-08-26 09:25:14,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4ed634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:25:14, skipping insertion in model container [2023-08-26 09:25:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 09:25:13" (2/3) ... [2023-08-26 09:25:14,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4ed634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 09:25:14, skipping insertion in model container [2023-08-26 09:25:14,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 09:25:14" (3/3) ... [2023-08-26 09:25:14,615 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2023-08-26 09:25:14,630 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 09:25:14,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2023-08-26 09:25:14,631 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 09:25:14,722 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-26 09:25:14,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 287 transitions, 606 flow [2023-08-26 09:25:14,831 INFO L124 PetriNetUnfolderBase]: 5/283 cut-off events. [2023-08-26 09:25:14,831 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 09:25:14,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 283 events. 5/283 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 290 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-26 09:25:14,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 287 transitions, 606 flow [2023-08-26 09:25:14,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 270 transitions, 564 flow [2023-08-26 09:25:14,844 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 09:25:14,851 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-26 09:25:14,853 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 270 transitions, 564 flow [2023-08-26 09:25:14,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 270 transitions, 564 flow [2023-08-26 09:25:14,897 INFO L124 PetriNetUnfolderBase]: 5/270 cut-off events. [2023-08-26 09:25:14,898 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 09:25:14,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 270 events. 5/270 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 291 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-26 09:25:14,902 INFO L119 LiptonReduction]: Number of co-enabled transitions 7752 [2023-08-26 09:25:21,937 INFO L134 LiptonReduction]: Checked pairs total: 50408 [2023-08-26 09:25:21,938 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-08-26 09:25:21,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 09:25:21,964 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;@556521e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 09:25:21,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2023-08-26 09:25:21,966 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 09:25:21,966 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 09:25:21,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 09:25:21,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:21,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 09:25:21,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:21,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1383, now seen corresponding path program 1 times [2023-08-26 09:25:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:21,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121359590] [2023-08-26 09:25:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:21,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:22,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:22,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121359590] [2023-08-26 09:25:22,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121359590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:22,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:22,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 09:25:22,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626405498] [2023-08-26 09:25:22,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:22,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 09:25:22,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:22,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 09:25:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 09:25:22,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 550 [2023-08-26 09:25:22,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 96 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:22,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:22,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 550 [2023-08-26 09:25:22,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:22,960 INFO L124 PetriNetUnfolderBase]: 5627/7812 cut-off events. [2023-08-26 09:25:22,960 INFO L125 PetriNetUnfolderBase]: For 454/454 co-relation queries the response was YES. [2023-08-26 09:25:22,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16160 conditions, 7812 events. 5627/7812 cut-off events. For 454/454 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 34382 event pairs, 5627 based on Foata normal form. 0/7812 useless extension candidates. Maximal degree in co-relation 13992. Up to 7813 conditions per place. [2023-08-26 09:25:23,003 INFO L140 encePairwiseOnDemand]: 488/550 looper letters, 34 selfloop transitions, 0 changer transitions 0/34 dead transitions. [2023-08-26 09:25:23,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 34 transitions, 160 flow [2023-08-26 09:25:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 09:25:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 09:25:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 528 transitions. [2023-08-26 09:25:23,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48 [2023-08-26 09:25:23,017 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 528 transitions. [2023-08-26 09:25:23,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 528 transitions. [2023-08-26 09:25:23,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:23,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 528 transitions. [2023-08-26 09:25:23,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.0) internal successors, (528), 2 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:23,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:23,030 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 550.0) internal successors, (1650), 3 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:23,031 INFO L175 Difference]: Start difference. First operand has 109 places, 96 transitions, 216 flow. Second operand 2 states and 528 transitions. [2023-08-26 09:25:23,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 34 transitions, 160 flow [2023-08-26 09:25:23,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 144 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-26 09:25:23,044 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 76 flow [2023-08-26 09:25:23,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-26 09:25:23,048 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -69 predicate places. [2023-08-26 09:25:23,049 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 76 flow [2023-08-26 09:25:23,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:23,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:23,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:23,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 09:25:23,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:23,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:23,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1607284180, now seen corresponding path program 1 times [2023-08-26 09:25:23,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:23,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621875037] [2023-08-26 09:25:23,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:23,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:23,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:23,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621875037] [2023-08-26 09:25:23,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621875037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:23,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:23,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:25:23,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307503293] [2023-08-26 09:25:23,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:23,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:25:23,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:25:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:25:23,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:23,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:23,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:23,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:23,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:24,306 INFO L124 PetriNetUnfolderBase]: 6106/8495 cut-off events. [2023-08-26 09:25:24,307 INFO L125 PetriNetUnfolderBase]: For 98/98 co-relation queries the response was YES. [2023-08-26 09:25:24,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17203 conditions, 8495 events. 6106/8495 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 39529 event pairs, 1670 based on Foata normal form. 204/8699 useless extension candidates. Maximal degree in co-relation 17200. Up to 5023 conditions per place. [2023-08-26 09:25:24,345 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 74 selfloop transitions, 13 changer transitions 0/87 dead transitions. [2023-08-26 09:25:24,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 87 transitions, 364 flow [2023-08-26 09:25:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:25:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:25:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1123 transitions. [2023-08-26 09:25:24,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083636363636364 [2023-08-26 09:25:24,349 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1123 transitions. [2023-08-26 09:25:24,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1123 transitions. [2023-08-26 09:25:24,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:24,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1123 transitions. [2023-08-26 09:25:24,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.6) internal successors, (1123), 5 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:24,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:24,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:24,359 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 76 flow. Second operand 5 states and 1123 transitions. [2023-08-26 09:25:24,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 87 transitions, 364 flow [2023-08-26 09:25:24,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 87 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:25:24,361 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 162 flow [2023-08-26 09:25:24,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2023-08-26 09:25:24,362 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -62 predicate places. [2023-08-26 09:25:24,362 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 162 flow [2023-08-26 09:25:24,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:24,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:24,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:24,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 09:25:24,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:24,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:24,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1924587212, now seen corresponding path program 2 times [2023-08-26 09:25:24,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:24,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262097686] [2023-08-26 09:25:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:24,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:24,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:24,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:24,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262097686] [2023-08-26 09:25:24,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262097686] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:24,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:24,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:25:24,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393937829] [2023-08-26 09:25:24,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:24,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:25:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:25:24,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:25:24,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:24,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:24,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:24,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:24,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:25,161 INFO L124 PetriNetUnfolderBase]: 5112/7293 cut-off events. [2023-08-26 09:25:25,161 INFO L125 PetriNetUnfolderBase]: For 2826/2826 co-relation queries the response was YES. [2023-08-26 09:25:25,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18824 conditions, 7293 events. 5112/7293 cut-off events. For 2826/2826 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 34545 event pairs, 1368 based on Foata normal form. 242/7535 useless extension candidates. Maximal degree in co-relation 18817. Up to 4693 conditions per place. [2023-08-26 09:25:25,199 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 72 selfloop transitions, 18 changer transitions 0/90 dead transitions. [2023-08-26 09:25:25,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 90 transitions, 470 flow [2023-08-26 09:25:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:25:25,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:25:25,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1121 transitions. [2023-08-26 09:25:25,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40763636363636363 [2023-08-26 09:25:25,203 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1121 transitions. [2023-08-26 09:25:25,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1121 transitions. [2023-08-26 09:25:25,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:25,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1121 transitions. [2023-08-26 09:25:25,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 224.2) internal successors, (1121), 5 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:25,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:25,211 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:25,212 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 162 flow. Second operand 5 states and 1121 transitions. [2023-08-26 09:25:25,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 90 transitions, 470 flow [2023-08-26 09:25:25,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 09:25:25,215 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 249 flow [2023-08-26 09:25:25,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=249, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2023-08-26 09:25:25,216 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -56 predicate places. [2023-08-26 09:25:25,216 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 249 flow [2023-08-26 09:25:25,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:25,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:25,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:25,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 09:25:25,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:25,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash -539493472, now seen corresponding path program 3 times [2023-08-26 09:25:25,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:25,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910283259] [2023-08-26 09:25:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:25,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:25,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:25,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910283259] [2023-08-26 09:25:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910283259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:25,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:25,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:25:25,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209798908] [2023-08-26 09:25:25,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:25,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:25:25,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:25,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:25:25,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:25:25,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:25,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 249 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:25,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:25,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:25,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:26,660 INFO L124 PetriNetUnfolderBase]: 9380/13673 cut-off events. [2023-08-26 09:25:26,661 INFO L125 PetriNetUnfolderBase]: For 7525/7525 co-relation queries the response was YES. [2023-08-26 09:25:26,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36209 conditions, 13673 events. 9380/13673 cut-off events. For 7525/7525 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 77504 event pairs, 2226 based on Foata normal form. 326/13999 useless extension candidates. Maximal degree in co-relation 36199. Up to 4947 conditions per place. [2023-08-26 09:25:26,749 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 102 selfloop transitions, 47 changer transitions 0/149 dead transitions. [2023-08-26 09:25:26,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 149 transitions, 910 flow [2023-08-26 09:25:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:25:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:25:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1362 transitions. [2023-08-26 09:25:26,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-26 09:25:26,754 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1362 transitions. [2023-08-26 09:25:26,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1362 transitions. [2023-08-26 09:25:26,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:26,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1362 transitions. [2023-08-26 09:25:26,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.0) internal successors, (1362), 6 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:26,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:26,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:26,766 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 249 flow. Second operand 6 states and 1362 transitions. [2023-08-26 09:25:26,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 149 transitions, 910 flow [2023-08-26 09:25:26,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 149 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 09:25:26,772 INFO L231 Difference]: Finished difference. Result has 58 places, 82 transitions, 569 flow [2023-08-26 09:25:26,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=569, PETRI_PLACES=58, PETRI_TRANSITIONS=82} [2023-08-26 09:25:26,773 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -51 predicate places. [2023-08-26 09:25:26,773 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 82 transitions, 569 flow [2023-08-26 09:25:26,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:26,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:26,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:26,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 09:25:26,775 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:26,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:26,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1450499282, now seen corresponding path program 4 times [2023-08-26 09:25:26,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:26,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914645057] [2023-08-26 09:25:26,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:27,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914645057] [2023-08-26 09:25:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914645057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:27,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:27,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570585466] [2023-08-26 09:25:27,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:27,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:27,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:27,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:27,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:27,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:27,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 82 transitions, 569 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:27,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:27,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:27,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:28,396 INFO L124 PetriNetUnfolderBase]: 10114/14963 cut-off events. [2023-08-26 09:25:28,396 INFO L125 PetriNetUnfolderBase]: For 19894/19894 co-relation queries the response was YES. [2023-08-26 09:25:28,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47203 conditions, 14963 events. 10114/14963 cut-off events. For 19894/19894 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 89015 event pairs, 2430 based on Foata normal form. 500/15463 useless extension candidates. Maximal degree in co-relation 47191. Up to 5031 conditions per place. [2023-08-26 09:25:28,634 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 131 selfloop transitions, 72 changer transitions 0/203 dead transitions. [2023-08-26 09:25:28,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 203 transitions, 1462 flow [2023-08-26 09:25:28,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:25:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:25:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1818 transitions. [2023-08-26 09:25:28,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131818181818182 [2023-08-26 09:25:28,640 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1818 transitions. [2023-08-26 09:25:28,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1818 transitions. [2023-08-26 09:25:28,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:28,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1818 transitions. [2023-08-26 09:25:28,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 227.25) internal successors, (1818), 8 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:28,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:28,652 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:28,652 INFO L175 Difference]: Start difference. First operand has 58 places, 82 transitions, 569 flow. Second operand 8 states and 1818 transitions. [2023-08-26 09:25:28,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 203 transitions, 1462 flow [2023-08-26 09:25:28,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 203 transitions, 1443 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-26 09:25:28,665 INFO L231 Difference]: Finished difference. Result has 68 places, 107 transitions, 987 flow [2023-08-26 09:25:28,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=987, PETRI_PLACES=68, PETRI_TRANSITIONS=107} [2023-08-26 09:25:28,666 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -41 predicate places. [2023-08-26 09:25:28,666 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 107 transitions, 987 flow [2023-08-26 09:25:28,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:28,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:28,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:28,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 09:25:28,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:28,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:28,668 INFO L85 PathProgramCache]: Analyzing trace with hash 815100194, now seen corresponding path program 5 times [2023-08-26 09:25:28,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:28,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861886013] [2023-08-26 09:25:28,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:28,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:29,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:29,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861886013] [2023-08-26 09:25:29,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861886013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:29,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:29,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:25:29,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923063496] [2023-08-26 09:25:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:29,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:25:29,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:25:29,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:25:29,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 550 [2023-08-26 09:25:29,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 107 transitions, 987 flow. Second operand has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:29,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:29,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 550 [2023-08-26 09:25:29,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:30,900 INFO L124 PetriNetUnfolderBase]: 13793/20595 cut-off events. [2023-08-26 09:25:30,901 INFO L125 PetriNetUnfolderBase]: For 54708/54708 co-relation queries the response was YES. [2023-08-26 09:25:30,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74877 conditions, 20595 events. 13793/20595 cut-off events. For 54708/54708 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 129549 event pairs, 4010 based on Foata normal form. 1/20596 useless extension candidates. Maximal degree in co-relation 74860. Up to 10521 conditions per place. [2023-08-26 09:25:30,986 INFO L140 encePairwiseOnDemand]: 543/550 looper letters, 228 selfloop transitions, 12 changer transitions 69/309 dead transitions. [2023-08-26 09:25:30,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 309 transitions, 3359 flow [2023-08-26 09:25:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:25:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:25:30,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2023-08-26 09:25:30,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41484848484848486 [2023-08-26 09:25:30,991 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1369 transitions. [2023-08-26 09:25:30,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1369 transitions. [2023-08-26 09:25:30,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:30,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1369 transitions. [2023-08-26 09:25:30,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.16666666666666) internal successors, (1369), 6 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:30,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:30,999 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:31,000 INFO L175 Difference]: Start difference. First operand has 68 places, 107 transitions, 987 flow. Second operand 6 states and 1369 transitions. [2023-08-26 09:25:31,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 309 transitions, 3359 flow [2023-08-26 09:25:31,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 309 transitions, 3126 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-08-26 09:25:31,100 INFO L231 Difference]: Finished difference. Result has 73 places, 116 transitions, 926 flow [2023-08-26 09:25:31,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=73, PETRI_TRANSITIONS=116} [2023-08-26 09:25:31,101 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -36 predicate places. [2023-08-26 09:25:31,101 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 116 transitions, 926 flow [2023-08-26 09:25:31,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:31,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:31,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:31,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 09:25:31,102 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:31,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:31,103 INFO L85 PathProgramCache]: Analyzing trace with hash -804151248, now seen corresponding path program 6 times [2023-08-26 09:25:31,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:31,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360501977] [2023-08-26 09:25:31,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:31,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:31,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:31,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360501977] [2023-08-26 09:25:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360501977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:31,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:31,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 09:25:31,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131407286] [2023-08-26 09:25:31,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:31,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 09:25:31,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:31,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 09:25:31,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 09:25:31,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:31,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 116 transitions, 926 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:31,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:31,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:31,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:32,076 INFO L124 PetriNetUnfolderBase]: 5166/8037 cut-off events. [2023-08-26 09:25:32,076 INFO L125 PetriNetUnfolderBase]: For 17220/17220 co-relation queries the response was YES. [2023-08-26 09:25:32,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29739 conditions, 8037 events. 5166/8037 cut-off events. For 17220/17220 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 45759 event pairs, 1754 based on Foata normal form. 132/8169 useless extension candidates. Maximal degree in co-relation 29719. Up to 7403 conditions per place. [2023-08-26 09:25:32,115 INFO L140 encePairwiseOnDemand]: 541/550 looper letters, 103 selfloop transitions, 34 changer transitions 3/140 dead transitions. [2023-08-26 09:25:32,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 140 transitions, 1300 flow [2023-08-26 09:25:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 09:25:32,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 09:25:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1113 transitions. [2023-08-26 09:25:32,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4047272727272727 [2023-08-26 09:25:32,120 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1113 transitions. [2023-08-26 09:25:32,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1113 transitions. [2023-08-26 09:25:32,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:32,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1113 transitions. [2023-08-26 09:25:32,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 222.6) internal successors, (1113), 5 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:32,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:32,127 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 550.0) internal successors, (3300), 6 states have internal predecessors, (3300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:32,127 INFO L175 Difference]: Start difference. First operand has 73 places, 116 transitions, 926 flow. Second operand 5 states and 1113 transitions. [2023-08-26 09:25:32,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 140 transitions, 1300 flow [2023-08-26 09:25:32,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 140 transitions, 1289 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-26 09:25:32,171 INFO L231 Difference]: Finished difference. Result has 76 places, 108 transitions, 956 flow [2023-08-26 09:25:32,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=956, PETRI_PLACES=76, PETRI_TRANSITIONS=108} [2023-08-26 09:25:32,172 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-26 09:25:32,172 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 108 transitions, 956 flow [2023-08-26 09:25:32,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:32,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:32,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:32,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 09:25:32,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:32,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:32,174 INFO L85 PathProgramCache]: Analyzing trace with hash 741804580, now seen corresponding path program 7 times [2023-08-26 09:25:32,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:32,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143866971] [2023-08-26 09:25:32,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:32,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:32,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:32,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:32,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143866971] [2023-08-26 09:25:32,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143866971] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:32,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:32,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:32,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245873372] [2023-08-26 09:25:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:32,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:32,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:32,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:32,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 108 transitions, 956 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:32,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:32,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:32,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:33,467 INFO L124 PetriNetUnfolderBase]: 5909/9336 cut-off events. [2023-08-26 09:25:33,467 INFO L125 PetriNetUnfolderBase]: For 20004/20004 co-relation queries the response was YES. [2023-08-26 09:25:33,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34533 conditions, 9336 events. 5909/9336 cut-off events. For 20004/20004 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 56771 event pairs, 1131 based on Foata normal form. 50/9386 useless extension candidates. Maximal degree in co-relation 34512. Up to 3026 conditions per place. [2023-08-26 09:25:33,508 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 154 selfloop transitions, 112 changer transitions 1/267 dead transitions. [2023-08-26 09:25:33,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 267 transitions, 2414 flow [2023-08-26 09:25:33,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:33,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2012 transitions. [2023-08-26 09:25:33,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4064646464646465 [2023-08-26 09:25:33,513 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2012 transitions. [2023-08-26 09:25:33,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2012 transitions. [2023-08-26 09:25:33,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:33,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2012 transitions. [2023-08-26 09:25:33,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 223.55555555555554) internal successors, (2012), 9 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:33,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:33,526 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:33,526 INFO L175 Difference]: Start difference. First operand has 76 places, 108 transitions, 956 flow. Second operand 9 states and 2012 transitions. [2023-08-26 09:25:33,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 267 transitions, 2414 flow [2023-08-26 09:25:33,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 267 transitions, 2373 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 09:25:33,586 INFO L231 Difference]: Finished difference. Result has 85 places, 157 transitions, 1764 flow [2023-08-26 09:25:33,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1764, PETRI_PLACES=85, PETRI_TRANSITIONS=157} [2023-08-26 09:25:33,586 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -24 predicate places. [2023-08-26 09:25:33,586 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 157 transitions, 1764 flow [2023-08-26 09:25:33,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:33,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:33,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:33,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 09:25:33,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:33,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash -797981306, now seen corresponding path program 8 times [2023-08-26 09:25:33,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062761221] [2023-08-26 09:25:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:33,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:33,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:33,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062761221] [2023-08-26 09:25:33,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062761221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:33,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:33,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:33,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657779308] [2023-08-26 09:25:33,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:33,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:33,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:33,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:33,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:33,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:33,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 157 transitions, 1764 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:33,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:33,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:33,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:34,739 INFO L124 PetriNetUnfolderBase]: 5734/9177 cut-off events. [2023-08-26 09:25:34,739 INFO L125 PetriNetUnfolderBase]: For 33036/33036 co-relation queries the response was YES. [2023-08-26 09:25:34,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39656 conditions, 9177 events. 5734/9177 cut-off events. For 33036/33036 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 56626 event pairs, 1178 based on Foata normal form. 144/9321 useless extension candidates. Maximal degree in co-relation 39632. Up to 4279 conditions per place. [2023-08-26 09:25:34,786 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 169 selfloop transitions, 103 changer transitions 8/280 dead transitions. [2023-08-26 09:25:34,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 280 transitions, 2999 flow [2023-08-26 09:25:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:25:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:25:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1804 transitions. [2023-08-26 09:25:34,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41 [2023-08-26 09:25:34,792 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1804 transitions. [2023-08-26 09:25:34,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1804 transitions. [2023-08-26 09:25:34,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:34,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1804 transitions. [2023-08-26 09:25:34,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.5) internal successors, (1804), 8 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:34,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:34,803 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:34,803 INFO L175 Difference]: Start difference. First operand has 85 places, 157 transitions, 1764 flow. Second operand 8 states and 1804 transitions. [2023-08-26 09:25:34,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 280 transitions, 2999 flow [2023-08-26 09:25:34,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 280 transitions, 2955 flow, removed 20 selfloop flow, removed 1 redundant places. [2023-08-26 09:25:34,894 INFO L231 Difference]: Finished difference. Result has 93 places, 166 transitions, 2073 flow [2023-08-26 09:25:34,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=1726, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2073, PETRI_PLACES=93, PETRI_TRANSITIONS=166} [2023-08-26 09:25:34,895 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -16 predicate places. [2023-08-26 09:25:34,895 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 166 transitions, 2073 flow [2023-08-26 09:25:34,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:34,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:34,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:34,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 09:25:34,896 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:34,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash 428640432, now seen corresponding path program 9 times [2023-08-26 09:25:34,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:34,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438606274] [2023-08-26 09:25:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:34,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:35,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:35,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438606274] [2023-08-26 09:25:35,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438606274] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:35,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:35,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:35,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081386787] [2023-08-26 09:25:35,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:35,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:35,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:35,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:35,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:35,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:35,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 166 transitions, 2073 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:35,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:35,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:35,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:35,934 INFO L124 PetriNetUnfolderBase]: 4234/7011 cut-off events. [2023-08-26 09:25:35,934 INFO L125 PetriNetUnfolderBase]: For 27465/27465 co-relation queries the response was YES. [2023-08-26 09:25:35,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31056 conditions, 7011 events. 4234/7011 cut-off events. For 27465/27465 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 43175 event pairs, 1032 based on Foata normal form. 360/7371 useless extension candidates. Maximal degree in co-relation 31029. Up to 3627 conditions per place. [2023-08-26 09:25:35,973 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 144 selfloop transitions, 115 changer transitions 26/285 dead transitions. [2023-08-26 09:25:35,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 285 transitions, 3509 flow [2023-08-26 09:25:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:25:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:25:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1798 transitions. [2023-08-26 09:25:35,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40863636363636363 [2023-08-26 09:25:35,977 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1798 transitions. [2023-08-26 09:25:35,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1798 transitions. [2023-08-26 09:25:35,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:35,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1798 transitions. [2023-08-26 09:25:35,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 224.75) internal successors, (1798), 8 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:35,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:35,986 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:35,987 INFO L175 Difference]: Start difference. First operand has 93 places, 166 transitions, 2073 flow. Second operand 8 states and 1798 transitions. [2023-08-26 09:25:35,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 285 transitions, 3509 flow [2023-08-26 09:25:36,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 285 transitions, 3441 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-26 09:25:36,068 INFO L231 Difference]: Finished difference. Result has 100 places, 177 transitions, 2495 flow [2023-08-26 09:25:36,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2015, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2495, PETRI_PLACES=100, PETRI_TRANSITIONS=177} [2023-08-26 09:25:36,070 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -9 predicate places. [2023-08-26 09:25:36,070 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 177 transitions, 2495 flow [2023-08-26 09:25:36,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:36,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:36,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:36,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 09:25:36,072 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:36,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:36,072 INFO L85 PathProgramCache]: Analyzing trace with hash 987333846, now seen corresponding path program 10 times [2023-08-26 09:25:36,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:36,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127725] [2023-08-26 09:25:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:36,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:36,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:36,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127725] [2023-08-26 09:25:36,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:36,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:36,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:36,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746029389] [2023-08-26 09:25:36,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:36,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:36,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:36,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:36,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:36,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:36,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 177 transitions, 2495 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:36,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:36,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:36,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:37,328 INFO L124 PetriNetUnfolderBase]: 4450/7505 cut-off events. [2023-08-26 09:25:37,329 INFO L125 PetriNetUnfolderBase]: For 34783/34783 co-relation queries the response was YES. [2023-08-26 09:25:37,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33941 conditions, 7505 events. 4450/7505 cut-off events. For 34783/34783 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 48116 event pairs, 378 based on Foata normal form. 88/7593 useless extension candidates. Maximal degree in co-relation 33912. Up to 2729 conditions per place. [2023-08-26 09:25:37,374 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 151 changer transitions 8/305 dead transitions. [2023-08-26 09:25:37,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 305 transitions, 3781 flow [2023-08-26 09:25:37,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:25:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:25:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1589 transitions. [2023-08-26 09:25:37,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4127272727272727 [2023-08-26 09:25:37,378 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1589 transitions. [2023-08-26 09:25:37,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1589 transitions. [2023-08-26 09:25:37,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:37,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1589 transitions. [2023-08-26 09:25:37,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 227.0) internal successors, (1589), 7 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:37,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:37,386 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:37,386 INFO L175 Difference]: Start difference. First operand has 100 places, 177 transitions, 2495 flow. Second operand 7 states and 1589 transitions. [2023-08-26 09:25:37,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 305 transitions, 3781 flow [2023-08-26 09:25:37,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 305 transitions, 3710 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-26 09:25:37,473 INFO L231 Difference]: Finished difference. Result has 106 places, 201 transitions, 3154 flow [2023-08-26 09:25:37,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2434, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3154, PETRI_PLACES=106, PETRI_TRANSITIONS=201} [2023-08-26 09:25:37,474 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2023-08-26 09:25:37,474 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 201 transitions, 3154 flow [2023-08-26 09:25:37,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:37,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:37,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:37,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 09:25:37,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:37,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash -325954334, now seen corresponding path program 11 times [2023-08-26 09:25:37,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:37,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464246550] [2023-08-26 09:25:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:37,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:37,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464246550] [2023-08-26 09:25:37,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464246550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:37,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:37,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:37,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129056528] [2023-08-26 09:25:37,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:37,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:37,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:37,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:37,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:37,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:37,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 201 transitions, 3154 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:37,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:37,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:37,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:38,799 INFO L124 PetriNetUnfolderBase]: 4429/7492 cut-off events. [2023-08-26 09:25:38,800 INFO L125 PetriNetUnfolderBase]: For 51079/51079 co-relation queries the response was YES. [2023-08-26 09:25:38,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37659 conditions, 7492 events. 4429/7492 cut-off events. For 51079/51079 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 47799 event pairs, 866 based on Foata normal form. 28/7520 useless extension candidates. Maximal degree in co-relation 37628. Up to 3502 conditions per place. [2023-08-26 09:25:38,843 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 175 selfloop transitions, 135 changer transitions 10/320 dead transitions. [2023-08-26 09:25:38,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 320 transitions, 4442 flow [2023-08-26 09:25:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-26 09:25:38,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-26 09:25:38,848 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-26 09:25:38,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-26 09:25:38,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:38,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-26 09:25:38,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:38,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:38,855 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:38,855 INFO L175 Difference]: Start difference. First operand has 106 places, 201 transitions, 3154 flow. Second operand 9 states and 2022 transitions. [2023-08-26 09:25:38,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 320 transitions, 4442 flow [2023-08-26 09:25:38,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 320 transitions, 4326 flow, removed 40 selfloop flow, removed 2 redundant places. [2023-08-26 09:25:38,977 INFO L231 Difference]: Finished difference. Result has 113 places, 204 transitions, 3347 flow [2023-08-26 09:25:38,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3044, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3347, PETRI_PLACES=113, PETRI_TRANSITIONS=204} [2023-08-26 09:25:38,977 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 4 predicate places. [2023-08-26 09:25:38,978 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 204 transitions, 3347 flow [2023-08-26 09:25:38,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:38,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:38,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:38,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 09:25:38,978 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:38,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1931525040, now seen corresponding path program 12 times [2023-08-26 09:25:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:38,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644554641] [2023-08-26 09:25:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:39,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:39,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:39,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644554641] [2023-08-26 09:25:39,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644554641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:39,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:39,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:39,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448086545] [2023-08-26 09:25:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:39,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:39,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:39,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:39,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:39,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:39,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 204 transitions, 3347 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:39,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:39,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:39,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:40,060 INFO L124 PetriNetUnfolderBase]: 4040/6973 cut-off events. [2023-08-26 09:25:40,061 INFO L125 PetriNetUnfolderBase]: For 54553/54553 co-relation queries the response was YES. [2023-08-26 09:25:40,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36192 conditions, 6973 events. 4040/6973 cut-off events. For 54553/54553 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 45553 event pairs, 375 based on Foata normal form. 132/7105 useless extension candidates. Maximal degree in co-relation 36160. Up to 2421 conditions per place. [2023-08-26 09:25:40,095 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 140 selfloop transitions, 158 changer transitions 12/310 dead transitions. [2023-08-26 09:25:40,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 310 transitions, 4610 flow [2023-08-26 09:25:40,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:25:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:25:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-26 09:25:40,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-26 09:25:40,098 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-26 09:25:40,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-26 09:25:40,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:40,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-26 09:25:40,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:40,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:40,104 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:40,104 INFO L175 Difference]: Start difference. First operand has 113 places, 204 transitions, 3347 flow. Second operand 7 states and 1586 transitions. [2023-08-26 09:25:40,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 310 transitions, 4610 flow [2023-08-26 09:25:40,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 310 transitions, 4409 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-26 09:25:40,197 INFO L231 Difference]: Finished difference. Result has 114 places, 211 transitions, 3618 flow [2023-08-26 09:25:40,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3164, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3618, PETRI_PLACES=114, PETRI_TRANSITIONS=211} [2023-08-26 09:25:40,197 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2023-08-26 09:25:40,197 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 211 transitions, 3618 flow [2023-08-26 09:25:40,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:40,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:40,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:40,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 09:25:40,198 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:40,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:40,199 INFO L85 PathProgramCache]: Analyzing trace with hash -26018462, now seen corresponding path program 13 times [2023-08-26 09:25:40,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:40,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087294680] [2023-08-26 09:25:40,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:40,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:40,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:40,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087294680] [2023-08-26 09:25:40,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087294680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:40,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:40,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 09:25:40,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954239939] [2023-08-26 09:25:40,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:40,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 09:25:40,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:40,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 09:25:40,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-26 09:25:40,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:40,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 211 transitions, 3618 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:40,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:40,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:40,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:41,433 INFO L124 PetriNetUnfolderBase]: 3938/6813 cut-off events. [2023-08-26 09:25:41,433 INFO L125 PetriNetUnfolderBase]: For 61131/61131 co-relation queries the response was YES. [2023-08-26 09:25:41,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36400 conditions, 6813 events. 3938/6813 cut-off events. For 61131/61131 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 44135 event pairs, 746 based on Foata normal form. 14/6827 useless extension candidates. Maximal degree in co-relation 36368. Up to 2939 conditions per place. [2023-08-26 09:25:41,469 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 191 selfloop transitions, 136 changer transitions 16/343 dead transitions. [2023-08-26 09:25:41,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 343 transitions, 4970 flow [2023-08-26 09:25:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 09:25:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 09:25:41,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-26 09:25:41,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-26 09:25:41,474 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-26 09:25:41,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-26 09:25:41,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:41,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-26 09:25:41,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:41,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:41,485 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:41,485 INFO L175 Difference]: Start difference. First operand has 114 places, 211 transitions, 3618 flow. Second operand 12 states and 2669 transitions. [2023-08-26 09:25:41,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 343 transitions, 4970 flow [2023-08-26 09:25:41,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 343 transitions, 4699 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-26 09:25:41,584 INFO L231 Difference]: Finished difference. Result has 121 places, 209 transitions, 3573 flow [2023-08-26 09:25:41,584 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3369, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3573, PETRI_PLACES=121, PETRI_TRANSITIONS=209} [2023-08-26 09:25:41,585 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 12 predicate places. [2023-08-26 09:25:41,585 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 209 transitions, 3573 flow [2023-08-26 09:25:41,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:41,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:41,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:41,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 09:25:41,585 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:41,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:41,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1945340892, now seen corresponding path program 14 times [2023-08-26 09:25:41,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:41,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061312307] [2023-08-26 09:25:41,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:41,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061312307] [2023-08-26 09:25:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061312307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:41,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:41,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 09:25:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294371310] [2023-08-26 09:25:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:41,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 09:25:41,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:41,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 09:25:41,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-26 09:25:41,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:41,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 209 transitions, 3573 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:41,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:41,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:41,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:42,696 INFO L124 PetriNetUnfolderBase]: 4054/7057 cut-off events. [2023-08-26 09:25:42,696 INFO L125 PetriNetUnfolderBase]: For 64880/64880 co-relation queries the response was YES. [2023-08-26 09:25:42,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37482 conditions, 7057 events. 4054/7057 cut-off events. For 64880/64880 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 46606 event pairs, 774 based on Foata normal form. 54/7111 useless extension candidates. Maximal degree in co-relation 37450. Up to 2945 conditions per place. [2023-08-26 09:25:42,733 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 161 selfloop transitions, 114 changer transitions 85/360 dead transitions. [2023-08-26 09:25:42,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 360 transitions, 5386 flow [2023-08-26 09:25:42,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 09:25:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 09:25:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2670 transitions. [2023-08-26 09:25:42,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40454545454545454 [2023-08-26 09:25:42,737 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2670 transitions. [2023-08-26 09:25:42,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2670 transitions. [2023-08-26 09:25:42,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:42,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2670 transitions. [2023-08-26 09:25:42,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.5) internal successors, (2670), 12 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:42,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:42,747 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:42,747 INFO L175 Difference]: Start difference. First operand has 121 places, 209 transitions, 3573 flow. Second operand 12 states and 2670 transitions. [2023-08-26 09:25:42,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 360 transitions, 5386 flow [2023-08-26 09:25:42,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 360 transitions, 4922 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-26 09:25:42,850 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 2960 flow [2023-08-26 09:25:42,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3183, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2960, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-08-26 09:25:42,850 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 14 predicate places. [2023-08-26 09:25:42,850 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 2960 flow [2023-08-26 09:25:42,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:42,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:42,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:42,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 09:25:42,851 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:42,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:42,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1061181284, now seen corresponding path program 15 times [2023-08-26 09:25:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112498428] [2023-08-26 09:25:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:43,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:43,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112498428] [2023-08-26 09:25:43,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112498428] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:43,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:43,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 09:25:43,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734324179] [2023-08-26 09:25:43,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:43,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 09:25:43,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:43,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 09:25:43,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 09:25:43,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:43,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 2960 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:43,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:43,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:43,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:43,907 INFO L124 PetriNetUnfolderBase]: 3371/6024 cut-off events. [2023-08-26 09:25:43,907 INFO L125 PetriNetUnfolderBase]: For 57253/57253 co-relation queries the response was YES. [2023-08-26 09:25:43,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31978 conditions, 6024 events. 3371/6024 cut-off events. For 57253/57253 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39508 event pairs, 724 based on Foata normal form. 76/6100 useless extension candidates. Maximal degree in co-relation 31944. Up to 2360 conditions per place. [2023-08-26 09:25:43,940 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 120 changer transitions 15/282 dead transitions. [2023-08-26 09:25:43,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 282 transitions, 4188 flow [2023-08-26 09:25:43,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 09:25:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 09:25:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1351 transitions. [2023-08-26 09:25:43,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4093939393939394 [2023-08-26 09:25:43,943 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1351 transitions. [2023-08-26 09:25:43,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1351 transitions. [2023-08-26 09:25:43,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:43,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1351 transitions. [2023-08-26 09:25:43,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:43,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:43,948 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 550.0) internal successors, (3850), 7 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:43,948 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 2960 flow. Second operand 6 states and 1351 transitions. [2023-08-26 09:25:43,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 282 transitions, 4188 flow [2023-08-26 09:25:44,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 282 transitions, 4065 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-26 09:25:44,109 INFO L231 Difference]: Finished difference. Result has 122 places, 207 transitions, 3562 flow [2023-08-26 09:25:44,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2847, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3562, PETRI_PLACES=122, PETRI_TRANSITIONS=207} [2023-08-26 09:25:44,112 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 13 predicate places. [2023-08-26 09:25:44,112 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 207 transitions, 3562 flow [2023-08-26 09:25:44,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:44,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:44,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:44,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 09:25:44,113 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:44,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 79225516, now seen corresponding path program 16 times [2023-08-26 09:25:44,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:44,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381407712] [2023-08-26 09:25:44,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:44,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:44,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381407712] [2023-08-26 09:25:44,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381407712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:44,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:44,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:44,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395503164] [2023-08-26 09:25:44,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:44,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:44,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:44,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:44,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:44,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 207 transitions, 3562 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:44,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:44,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:44,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:45,264 INFO L124 PetriNetUnfolderBase]: 3274/5893 cut-off events. [2023-08-26 09:25:45,264 INFO L125 PetriNetUnfolderBase]: For 63461/63461 co-relation queries the response was YES. [2023-08-26 09:25:45,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33067 conditions, 5893 events. 3274/5893 cut-off events. For 63461/63461 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 39122 event pairs, 268 based on Foata normal form. 20/5913 useless extension candidates. Maximal degree in co-relation 33032. Up to 2093 conditions per place. [2023-08-26 09:25:45,298 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 130 selfloop transitions, 154 changer transitions 16/300 dead transitions. [2023-08-26 09:25:45,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 300 transitions, 4663 flow [2023-08-26 09:25:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:25:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:25:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1586 transitions. [2023-08-26 09:25:45,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41194805194805195 [2023-08-26 09:25:45,300 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1586 transitions. [2023-08-26 09:25:45,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1586 transitions. [2023-08-26 09:25:45,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:45,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1586 transitions. [2023-08-26 09:25:45,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 226.57142857142858) internal successors, (1586), 7 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:45,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:45,305 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:45,305 INFO L175 Difference]: Start difference. First operand has 122 places, 207 transitions, 3562 flow. Second operand 7 states and 1586 transitions. [2023-08-26 09:25:45,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 300 transitions, 4663 flow [2023-08-26 09:25:45,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 300 transitions, 4578 flow, removed 24 selfloop flow, removed 4 redundant places. [2023-08-26 09:25:45,411 INFO L231 Difference]: Finished difference. Result has 125 places, 206 transitions, 3808 flow [2023-08-26 09:25:45,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3478, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3808, PETRI_PLACES=125, PETRI_TRANSITIONS=206} [2023-08-26 09:25:45,412 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 16 predicate places. [2023-08-26 09:25:45,412 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 206 transitions, 3808 flow [2023-08-26 09:25:45,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:45,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:45,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:45,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 09:25:45,413 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:45,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:45,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1524074688, now seen corresponding path program 17 times [2023-08-26 09:25:45,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:45,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071008201] [2023-08-26 09:25:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:45,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:45,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071008201] [2023-08-26 09:25:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071008201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:45,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:45,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:45,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130241344] [2023-08-26 09:25:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:45,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:45,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:45,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:45,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 206 transitions, 3808 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:45,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:45,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:45,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:46,477 INFO L124 PetriNetUnfolderBase]: 3242/5847 cut-off events. [2023-08-26 09:25:46,477 INFO L125 PetriNetUnfolderBase]: For 69199/69199 co-relation queries the response was YES. [2023-08-26 09:25:46,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33658 conditions, 5847 events. 3242/5847 cut-off events. For 69199/69199 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 38811 event pairs, 278 based on Foata normal form. 14/5861 useless extension candidates. Maximal degree in co-relation 33624. Up to 1927 conditions per place. [2023-08-26 09:25:46,509 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 147 selfloop transitions, 158 changer transitions 15/320 dead transitions. [2023-08-26 09:25:46,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 320 transitions, 5082 flow [2023-08-26 09:25:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2022 transitions. [2023-08-26 09:25:46,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4084848484848485 [2023-08-26 09:25:46,512 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2022 transitions. [2023-08-26 09:25:46,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2022 transitions. [2023-08-26 09:25:46,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:46,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2022 transitions. [2023-08-26 09:25:46,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.66666666666666) internal successors, (2022), 9 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:46,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:46,517 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:46,517 INFO L175 Difference]: Start difference. First operand has 125 places, 206 transitions, 3808 flow. Second operand 9 states and 2022 transitions. [2023-08-26 09:25:46,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 320 transitions, 5082 flow [2023-08-26 09:25:46,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 320 transitions, 4805 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-08-26 09:25:46,624 INFO L231 Difference]: Finished difference. Result has 129 places, 210 transitions, 3942 flow [2023-08-26 09:25:46,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3552, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3942, PETRI_PLACES=129, PETRI_TRANSITIONS=210} [2023-08-26 09:25:46,625 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2023-08-26 09:25:46,625 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 210 transitions, 3942 flow [2023-08-26 09:25:46,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:46,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:46,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:46,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 09:25:46,625 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:46,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1545057920, now seen corresponding path program 18 times [2023-08-26 09:25:46,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:46,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049876547] [2023-08-26 09:25:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:46,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:46,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:46,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049876547] [2023-08-26 09:25:46,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049876547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:46,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:46,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:46,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794908715] [2023-08-26 09:25:46,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:46,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:46,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:46,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:46,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 210 transitions, 3942 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:46,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:46,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:46,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:47,865 INFO L124 PetriNetUnfolderBase]: 3307/5978 cut-off events. [2023-08-26 09:25:47,865 INFO L125 PetriNetUnfolderBase]: For 75105/75105 co-relation queries the response was YES. [2023-08-26 09:25:47,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34782 conditions, 5978 events. 3307/5978 cut-off events. For 75105/75105 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 39930 event pairs, 316 based on Foata normal form. 18/5996 useless extension candidates. Maximal degree in co-relation 34748. Up to 1938 conditions per place. [2023-08-26 09:25:47,898 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 141 selfloop transitions, 154 changer transitions 28/323 dead transitions. [2023-08-26 09:25:47,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 323 transitions, 5235 flow [2023-08-26 09:25:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:47,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:47,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2024 transitions. [2023-08-26 09:25:47,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4088888888888889 [2023-08-26 09:25:47,900 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2024 transitions. [2023-08-26 09:25:47,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2024 transitions. [2023-08-26 09:25:47,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:47,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2024 transitions. [2023-08-26 09:25:47,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.88888888888889) internal successors, (2024), 9 states have internal predecessors, (2024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:47,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:47,905 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:47,905 INFO L175 Difference]: Start difference. First operand has 129 places, 210 transitions, 3942 flow. Second operand 9 states and 2024 transitions. [2023-08-26 09:25:47,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 323 transitions, 5235 flow [2023-08-26 09:25:48,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 323 transitions, 4932 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 09:25:48,020 INFO L231 Difference]: Finished difference. Result has 133 places, 207 transitions, 3931 flow [2023-08-26 09:25:48,021 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3657, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3931, PETRI_PLACES=133, PETRI_TRANSITIONS=207} [2023-08-26 09:25:48,021 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 24 predicate places. [2023-08-26 09:25:48,021 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 207 transitions, 3931 flow [2023-08-26 09:25:48,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:48,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:48,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:48,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 09:25:48,022 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:48,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1166092776, now seen corresponding path program 19 times [2023-08-26 09:25:48,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:48,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838563147] [2023-08-26 09:25:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:48,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:48,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838563147] [2023-08-26 09:25:48,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838563147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:48,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:48,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:48,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868257706] [2023-08-26 09:25:48,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:48,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:48,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:48,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:48,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:48,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 207 transitions, 3931 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:48,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:48,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:48,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:49,161 INFO L124 PetriNetUnfolderBase]: 3205/5834 cut-off events. [2023-08-26 09:25:49,161 INFO L125 PetriNetUnfolderBase]: For 73757/73757 co-relation queries the response was YES. [2023-08-26 09:25:49,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34433 conditions, 5834 events. 3205/5834 cut-off events. For 73757/73757 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 39191 event pairs, 304 based on Foata normal form. 14/5848 useless extension candidates. Maximal degree in co-relation 34398. Up to 1966 conditions per place. [2023-08-26 09:25:49,191 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 146 selfloop transitions, 156 changer transitions 24/326 dead transitions. [2023-08-26 09:25:49,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 326 transitions, 5215 flow [2023-08-26 09:25:49,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:49,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2029 transitions. [2023-08-26 09:25:49,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4098989898989899 [2023-08-26 09:25:49,194 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2029 transitions. [2023-08-26 09:25:49,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2029 transitions. [2023-08-26 09:25:49,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:49,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2029 transitions. [2023-08-26 09:25:49,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 225.44444444444446) internal successors, (2029), 9 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:49,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:49,198 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:49,198 INFO L175 Difference]: Start difference. First operand has 133 places, 207 transitions, 3931 flow. Second operand 9 states and 2029 transitions. [2023-08-26 09:25:49,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 326 transitions, 5215 flow [2023-08-26 09:25:49,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 326 transitions, 5082 flow, removed 7 selfloop flow, removed 6 redundant places. [2023-08-26 09:25:49,311 INFO L231 Difference]: Finished difference. Result has 136 places, 207 transitions, 4130 flow [2023-08-26 09:25:49,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=3813, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4130, PETRI_PLACES=136, PETRI_TRANSITIONS=207} [2023-08-26 09:25:49,311 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 27 predicate places. [2023-08-26 09:25:49,311 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 207 transitions, 4130 flow [2023-08-26 09:25:49,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:49,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:49,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:49,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 09:25:49,312 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:49,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:49,312 INFO L85 PathProgramCache]: Analyzing trace with hash 898363850, now seen corresponding path program 20 times [2023-08-26 09:25:49,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:49,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71739962] [2023-08-26 09:25:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:49,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:49,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:49,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71739962] [2023-08-26 09:25:49,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71739962] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:49,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:49,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684442270] [2023-08-26 09:25:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:49,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:49,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:49,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:49,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 207 transitions, 4130 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:49,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:49,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:49,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:50,403 INFO L124 PetriNetUnfolderBase]: 2907/5296 cut-off events. [2023-08-26 09:25:50,403 INFO L125 PetriNetUnfolderBase]: For 79645/79645 co-relation queries the response was YES. [2023-08-26 09:25:50,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32020 conditions, 5296 events. 2907/5296 cut-off events. For 79645/79645 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 34760 event pairs, 576 based on Foata normal form. 28/5324 useless extension candidates. Maximal degree in co-relation 31985. Up to 1954 conditions per place. [2023-08-26 09:25:50,430 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 189 selfloop transitions, 116 changer transitions 21/326 dead transitions. [2023-08-26 09:25:50,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 326 transitions, 5465 flow [2023-08-26 09:25:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-26 09:25:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-26 09:25:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2023 transitions. [2023-08-26 09:25:50,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086868686868687 [2023-08-26 09:25:50,433 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2023 transitions. [2023-08-26 09:25:50,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2023 transitions. [2023-08-26 09:25:50,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:50,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2023 transitions. [2023-08-26 09:25:50,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 224.77777777777777) internal successors, (2023), 9 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:50,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:50,438 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 550.0) internal successors, (5500), 10 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:50,438 INFO L175 Difference]: Start difference. First operand has 136 places, 207 transitions, 4130 flow. Second operand 9 states and 2023 transitions. [2023-08-26 09:25:50,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 326 transitions, 5465 flow [2023-08-26 09:25:50,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 326 transitions, 5367 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-26 09:25:50,543 INFO L231 Difference]: Finished difference. Result has 141 places, 208 transitions, 4267 flow [2023-08-26 09:25:50,544 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4026, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4267, PETRI_PLACES=141, PETRI_TRANSITIONS=208} [2023-08-26 09:25:50,544 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 32 predicate places. [2023-08-26 09:25:50,544 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 208 transitions, 4267 flow [2023-08-26 09:25:50,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:50,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:50,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:50,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 09:25:50,545 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:50,545 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:50,545 INFO L85 PathProgramCache]: Analyzing trace with hash 361431784, now seen corresponding path program 21 times [2023-08-26 09:25:50,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:50,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863902329] [2023-08-26 09:25:50,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:50,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:50,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:50,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:50,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863902329] [2023-08-26 09:25:50,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863902329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:50,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:50,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 09:25:50,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804872662] [2023-08-26 09:25:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:50,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 09:25:50,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:50,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 09:25:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-26 09:25:50,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:50,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 208 transitions, 4267 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:50,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:50,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:50,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:51,642 INFO L124 PetriNetUnfolderBase]: 2908/5309 cut-off events. [2023-08-26 09:25:51,643 INFO L125 PetriNetUnfolderBase]: For 87598/87598 co-relation queries the response was YES. [2023-08-26 09:25:51,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32488 conditions, 5309 events. 2908/5309 cut-off events. For 87598/87598 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 34989 event pairs, 586 based on Foata normal form. 14/5323 useless extension candidates. Maximal degree in co-relation 32453. Up to 1960 conditions per place. [2023-08-26 09:25:51,670 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 195 selfloop transitions, 114 changer transitions 34/343 dead transitions. [2023-08-26 09:25:51,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 343 transitions, 5682 flow [2023-08-26 09:25:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 09:25:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 09:25:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2669 transitions. [2023-08-26 09:25:51,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4043939393939394 [2023-08-26 09:25:51,673 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2669 transitions. [2023-08-26 09:25:51,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2669 transitions. [2023-08-26 09:25:51,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:51,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2669 transitions. [2023-08-26 09:25:51,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 222.41666666666666) internal successors, (2669), 12 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:51,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:51,681 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:51,681 INFO L175 Difference]: Start difference. First operand has 141 places, 208 transitions, 4267 flow. Second operand 12 states and 2669 transitions. [2023-08-26 09:25:51,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 343 transitions, 5682 flow [2023-08-26 09:25:51,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 343 transitions, 5580 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-26 09:25:51,819 INFO L231 Difference]: Finished difference. Result has 150 places, 205 transitions, 4312 flow [2023-08-26 09:25:51,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=4171, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4312, PETRI_PLACES=150, PETRI_TRANSITIONS=205} [2023-08-26 09:25:51,819 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 41 predicate places. [2023-08-26 09:25:51,819 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 205 transitions, 4312 flow [2023-08-26 09:25:51,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:51,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:51,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:51,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 09:25:51,820 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:51,820 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:51,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1397536810, now seen corresponding path program 22 times [2023-08-26 09:25:51,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:51,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603485476] [2023-08-26 09:25:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:51,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:51,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:51,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603485476] [2023-08-26 09:25:51,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603485476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:51,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:51,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-26 09:25:51,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263467348] [2023-08-26 09:25:51,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:51,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-26 09:25:51,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:51,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-26 09:25:51,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-08-26 09:25:51,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:51,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 205 transitions, 4312 flow. Second operand has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:51,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:51,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:51,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:52,474 INFO L124 PetriNetUnfolderBase]: 1289/2466 cut-off events. [2023-08-26 09:25:52,474 INFO L125 PetriNetUnfolderBase]: For 32250/32250 co-relation queries the response was YES. [2023-08-26 09:25:52,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15137 conditions, 2466 events. 1289/2466 cut-off events. For 32250/32250 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 14455 event pairs, 382 based on Foata normal form. 180/2646 useless extension candidates. Maximal degree in co-relation 15101. Up to 1670 conditions per place. [2023-08-26 09:25:52,491 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 98 selfloop transitions, 11 changer transitions 99/208 dead transitions. [2023-08-26 09:25:52,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 208 transitions, 3569 flow [2023-08-26 09:25:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 09:25:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 09:25:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2612 transitions. [2023-08-26 09:25:52,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39575757575757575 [2023-08-26 09:25:52,494 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2612 transitions. [2023-08-26 09:25:52,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2612 transitions. [2023-08-26 09:25:52,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:52,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2612 transitions. [2023-08-26 09:25:52,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 217.66666666666666) internal successors, (2612), 12 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,502 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 550.0) internal successors, (7150), 13 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,502 INFO L175 Difference]: Start difference. First operand has 150 places, 205 transitions, 4312 flow. Second operand 12 states and 2612 transitions. [2023-08-26 09:25:52,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 208 transitions, 3569 flow [2023-08-26 09:25:52,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 208 transitions, 3416 flow, removed 16 selfloop flow, removed 11 redundant places. [2023-08-26 09:25:52,549 INFO L231 Difference]: Finished difference. Result has 153 places, 94 transitions, 1258 flow [2023-08-26 09:25:52,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=2604, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1258, PETRI_PLACES=153, PETRI_TRANSITIONS=94} [2023-08-26 09:25:52,549 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 44 predicate places. [2023-08-26 09:25:52,549 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 94 transitions, 1258 flow [2023-08-26 09:25:52,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 210.77777777777777) internal successors, (1897), 9 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:52,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:52,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 09:25:52,550 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:52,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:52,550 INFO L85 PathProgramCache]: Analyzing trace with hash 24109932, now seen corresponding path program 23 times [2023-08-26 09:25:52,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:52,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540112154] [2023-08-26 09:25:52,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:52,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:52,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:52,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540112154] [2023-08-26 09:25:52,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540112154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:52,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:52,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 09:25:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096178159] [2023-08-26 09:25:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:52,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 09:25:52,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 09:25:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-26 09:25:52,684 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:52,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 94 transitions, 1258 flow. Second operand has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:52,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:52,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:52,885 INFO L124 PetriNetUnfolderBase]: 235/492 cut-off events. [2023-08-26 09:25:52,885 INFO L125 PetriNetUnfolderBase]: For 6048/6048 co-relation queries the response was YES. [2023-08-26 09:25:52,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 492 events. 235/492 cut-off events. For 6048/6048 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2069 event pairs, 6 based on Foata normal form. 78/570 useless extension candidates. Maximal degree in co-relation 2907. Up to 178 conditions per place. [2023-08-26 09:25:52,888 INFO L140 encePairwiseOnDemand]: 540/550 looper letters, 47 selfloop transitions, 15 changer transitions 29/91 dead transitions. [2023-08-26 09:25:52,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 91 transitions, 1082 flow [2023-08-26 09:25:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 09:25:52,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 09:25:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1526 transitions. [2023-08-26 09:25:52,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39636363636363636 [2023-08-26 09:25:52,891 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1526 transitions. [2023-08-26 09:25:52,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1526 transitions. [2023-08-26 09:25:52,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:52,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1526 transitions. [2023-08-26 09:25:52,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 218.0) internal successors, (1526), 7 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,895 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 550.0) internal successors, (4400), 8 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,896 INFO L175 Difference]: Start difference. First operand has 153 places, 94 transitions, 1258 flow. Second operand 7 states and 1526 transitions. [2023-08-26 09:25:52,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 91 transitions, 1082 flow [2023-08-26 09:25:52,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 751 flow, removed 45 selfloop flow, removed 52 redundant places. [2023-08-26 09:25:52,905 INFO L231 Difference]: Finished difference. Result has 76 places, 42 transitions, 277 flow [2023-08-26 09:25:52,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=277, PETRI_PLACES=76, PETRI_TRANSITIONS=42} [2023-08-26 09:25:52,905 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -33 predicate places. [2023-08-26 09:25:52,905 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 42 transitions, 277 flow [2023-08-26 09:25:52,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 211.85714285714286) internal successors, (1483), 7 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:52,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 09:25:52,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 09:25:52,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 09:25:52,906 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 106 more)] === [2023-08-26 09:25:52,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 09:25:52,907 INFO L85 PathProgramCache]: Analyzing trace with hash 936710512, now seen corresponding path program 24 times [2023-08-26 09:25:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 09:25:52,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109080610] [2023-08-26 09:25:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 09:25:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 09:25:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 09:25:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 09:25:53,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 09:25:53,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109080610] [2023-08-26 09:25:53,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109080610] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 09:25:53,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 09:25:53,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-26 09:25:53,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101505043] [2023-08-26 09:25:53,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 09:25:53,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 09:25:53,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 09:25:53,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 09:25:53,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-26 09:25:53,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 550 [2023-08-26 09:25:53,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 42 transitions, 277 flow. Second operand has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:53,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 09:25:53,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 550 [2023-08-26 09:25:53,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 09:25:53,162 INFO L124 PetriNetUnfolderBase]: 55/130 cut-off events. [2023-08-26 09:25:53,162 INFO L125 PetriNetUnfolderBase]: For 592/592 co-relation queries the response was YES. [2023-08-26 09:25:53,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 130 events. 55/130 cut-off events. For 592/592 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 357 event pairs, 0 based on Foata normal form. 6/136 useless extension candidates. Maximal degree in co-relation 585. Up to 48 conditions per place. [2023-08-26 09:25:53,163 INFO L140 encePairwiseOnDemand]: 542/550 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-08-26 09:25:53,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 44 transitions, 347 flow [2023-08-26 09:25:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-26 09:25:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-26 09:25:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2023-08-26 09:25:53,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3861363636363636 [2023-08-26 09:25:53,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2023-08-26 09:25:53,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2023-08-26 09:25:53,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 09:25:53,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2023-08-26 09:25:53,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:53,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:53,171 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 550.0) internal successors, (4950), 9 states have internal predecessors, (4950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:53,171 INFO L175 Difference]: Start difference. First operand has 76 places, 42 transitions, 277 flow. Second operand 8 states and 1699 transitions. [2023-08-26 09:25:53,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 44 transitions, 347 flow [2023-08-26 09:25:53,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 238 flow, removed 12 selfloop flow, removed 23 redundant places. [2023-08-26 09:25:53,173 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-26 09:25:53,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-26 09:25:53,173 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -66 predicate places. [2023-08-26 09:25:53,174 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-26 09:25:53,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 211.25) internal successors, (1690), 8 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 09:25:53,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (109 of 110 remaining) [2023-08-26 09:25:53,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (108 of 110 remaining) [2023-08-26 09:25:53,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (107 of 110 remaining) [2023-08-26 09:25:53,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (106 of 110 remaining) [2023-08-26 09:25:53,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (105 of 110 remaining) [2023-08-26 09:25:53,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (104 of 110 remaining) [2023-08-26 09:25:53,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (103 of 110 remaining) [2023-08-26 09:25:53,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (102 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (101 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (100 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (99 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (98 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (97 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (96 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (95 of 110 remaining) [2023-08-26 09:25:53,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (94 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (93 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (92 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (91 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (90 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (89 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (88 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (87 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (86 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (85 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (84 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (83 of 110 remaining) [2023-08-26 09:25:53,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (82 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (81 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (80 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (79 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (78 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (77 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (76 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (75 of 110 remaining) [2023-08-26 09:25:53,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (74 of 110 remaining) [2023-08-26 09:25:53,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (73 of 110 remaining) [2023-08-26 09:25:53,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (72 of 110 remaining) [2023-08-26 09:25:53,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (71 of 110 remaining) [2023-08-26 09:25:53,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (70 of 110 remaining) [2023-08-26 09:25:53,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (69 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (68 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (67 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (66 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (65 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (64 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (63 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (62 of 110 remaining) [2023-08-26 09:25:53,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (61 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (60 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (59 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONASSERT (58 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (53 of 110 remaining) [2023-08-26 09:25:53,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (52 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (51 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (50 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (49 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (48 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (47 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (46 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (45 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (44 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (43 of 110 remaining) [2023-08-26 09:25:53,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (42 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (41 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (40 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (39 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (38 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (37 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (36 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (35 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (34 of 110 remaining) [2023-08-26 09:25:53,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (33 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (28 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (26 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (25 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (24 of 110 remaining) [2023-08-26 09:25:53,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (23 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (22 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (21 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (20 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (19 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (18 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (17 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (16 of 110 remaining) [2023-08-26 09:25:53,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (15 of 110 remaining) [2023-08-26 09:25:53,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (14 of 110 remaining) [2023-08-26 09:25:53,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (13 of 110 remaining) [2023-08-26 09:25:53,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (12 of 110 remaining) [2023-08-26 09:25:53,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (11 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (10 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (9 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (8 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (7 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (6 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE (5 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE (4 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE (3 of 110 remaining) [2023-08-26 09:25:53,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err8ASSERT_VIOLATIONDATA_RACE (2 of 110 remaining) [2023-08-26 09:25:53,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err9ASSERT_VIOLATIONDATA_RACE (1 of 110 remaining) [2023-08-26 09:25:53,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err10ASSERT_VIOLATIONDATA_RACE (0 of 110 remaining) [2023-08-26 09:25:53,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 09:25:53,195 INFO L445 BasicCegarLoop]: Path program histogram: [24, 1] [2023-08-26 09:25:53,200 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 09:25:53,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 09:25:53,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 09:25:53 BasicIcfg [2023-08-26 09:25:53,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 09:25:53,205 INFO L158 Benchmark]: Toolchain (without parser) took 39928.33ms. Allocated memory was 375.4MB in the beginning and 3.9GB in the end (delta: 3.5GB). Free memory was 351.3MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2023-08-26 09:25:53,205 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory was 351.4MB in the beginning and 351.2MB in the end (delta: 176.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 09:25:53,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.03ms. Allocated memory is still 375.4MB. Free memory was 350.8MB in the beginning and 338.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 09:25:53,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.36ms. Allocated memory is still 375.4MB. Free memory was 338.6MB in the beginning and 335.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 09:25:53,206 INFO L158 Benchmark]: Boogie Preprocessor took 53.44ms. Allocated memory is still 375.4MB. Free memory was 335.5MB in the beginning and 333.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 09:25:53,206 INFO L158 Benchmark]: RCFGBuilder took 934.13ms. Allocated memory is still 375.4MB. Free memory was 333.4MB in the beginning and 332.5MB in the end (delta: 927.2kB). Peak memory consumption was 44.5MB. Max. memory is 16.0GB. [2023-08-26 09:25:53,206 INFO L158 Benchmark]: TraceAbstraction took 38594.42ms. Allocated memory was 375.4MB in the beginning and 3.9GB in the end (delta: 3.5GB). Free memory was 331.5MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. [2023-08-26 09:25:53,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 375.4MB. Free memory was 351.4MB in the beginning and 351.2MB in the end (delta: 176.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 276.03ms. Allocated memory is still 375.4MB. Free memory was 350.8MB in the beginning and 338.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.36ms. Allocated memory is still 375.4MB. Free memory was 338.6MB in the beginning and 335.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 53.44ms. Allocated memory is still 375.4MB. Free memory was 335.5MB in the beginning and 333.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 934.13ms. Allocated memory is still 375.4MB. Free memory was 333.4MB in the beginning and 332.5MB in the end (delta: 927.2kB). Peak memory consumption was 44.5MB. Max. memory is 16.0GB. * TraceAbstraction took 38594.42ms. Allocated memory was 375.4MB in the beginning and 3.9GB in the end (delta: 3.5GB). Free memory was 331.5MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 2.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.1s, 278 PlacesBefore, 109 PlacesAfterwards, 270 TransitionsBefore, 96 TransitionsAfterwards, 7752 CoEnabledTransitionPairs, 9 FixpointIterations, 181 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 0 ConcurrentYvCompositions, 5 ChoiceCompositions, 263 TotalNumberOfCompositions, 50408 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15258, independent: 14504, independent conditional: 0, independent unconditional: 14504, dependent: 754, dependent conditional: 0, dependent unconditional: 754, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3161, independent: 3116, independent conditional: 0, independent unconditional: 3116, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15258, independent: 11388, independent conditional: 0, independent unconditional: 11388, dependent: 709, dependent conditional: 0, dependent unconditional: 709, unknown: 3161, unknown conditional: 0, unknown unconditional: 3161] , Statistics on independence cache: Total cache size (in pairs): 833, Positive cache size: 795, Positive conditional cache size: 0, Positive unconditional cache size: 795, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 124]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 125]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 128]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 129]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 130]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 131]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 134]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 141]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 142]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 143]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 145]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 359 locations, 110 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: 38.4s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 24, EmptinessCheckTime: 0.0s, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1689 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1689 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 410 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9122 IncrementalHoareTripleChecker+Invalid, 9532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 410 mSolverCounterUnsat, 0 mSDtfsCounter, 9122 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4312occurred in iteration=22, InterpolantAutomatonStates: 197, 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: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 792 ConstructedInterpolants, 0 QuantifiedInterpolants, 2188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 63 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 09:25:53,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...