/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 06:12:17,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 06:12:17,086 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 06:12:17,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 06:12:17,091 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 06:12:17,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 06:12:17,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 06:12:17,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 06:12:17,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 06:12:17,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 06:12:17,123 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 06:12:17,123 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 06:12:17,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 06:12:17,125 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 06:12:17,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 06:12:17,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 06:12:17,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 06:12:17,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 06:12:17,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 06:12:17,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 06:12:17,127 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 06:12:17,127 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 06:12:17,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 06:12:17,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 06:12:17,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 06:12:17,128 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 06:12:17,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 06:12:17,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:12:17,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 06:12:17,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 06:12:17,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 06:12:17,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 06:12:17,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 06:12:17,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 06:12:17,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 06:12:17,131 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 06:12:17,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 06:12:17,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 06:12:17,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 06:12:17,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 06:12:17,478 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 06:12:17,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-08-25 06:12:18,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 06:12:18,838 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 06:12:18,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2023-08-25 06:12:18,848 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feaaafb41/6667a3d170dd4aed9ab7ca77275f37f6/FLAGaa780f140 [2023-08-25 06:12:18,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feaaafb41/6667a3d170dd4aed9ab7ca77275f37f6 [2023-08-25 06:12:18,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 06:12:18,869 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 06:12:18,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 06:12:18,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 06:12:18,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 06:12:18,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:12:18" (1/1) ... [2023-08-25 06:12:18,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c323d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:18, skipping insertion in model container [2023-08-25 06:12:18,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:12:18" (1/1) ... [2023-08-25 06:12:18,910 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 06:12:19,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:12:19,150 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 06:12:19,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:12:19,207 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:12:19,207 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:12:19,215 INFO L206 MainTranslator]: Completed translation [2023-08-25 06:12:19,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19 WrapperNode [2023-08-25 06:12:19,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 06:12:19,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 06:12:19,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 06:12:19,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 06:12:19,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,273 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 273 [2023-08-25 06:12:19,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 06:12:19,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 06:12:19,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 06:12:19,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 06:12:19,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,338 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 06:12:19,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 06:12:19,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 06:12:19,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 06:12:19,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (1/1) ... [2023-08-25 06:12:19,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:12:19,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:12:19,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 06:12:19,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 06:12:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 06:12:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 06:12:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 06:12:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 06:12:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 06:12:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 06:12:19,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-25 06:12:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 06:12:19,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 06:12:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 06:12:19,402 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 06:12:19,498 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 06:12:19,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 06:12:20,182 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 06:12:20,499 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 06:12:20,500 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-08-25 06:12:20,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:12:20 BoogieIcfgContainer [2023-08-25 06:12:20,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 06:12:20,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 06:12:20,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 06:12:20,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 06:12:20,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:12:18" (1/3) ... [2023-08-25 06:12:20,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3cfce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:12:20, skipping insertion in model container [2023-08-25 06:12:20,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:12:19" (2/3) ... [2023-08-25 06:12:20,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3cfce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:12:20, skipping insertion in model container [2023-08-25 06:12:20,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:12:20" (3/3) ... [2023-08-25 06:12:20,508 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2023-08-25 06:12:20,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 06:12:20,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2023-08-25 06:12:20,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 06:12:20,641 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-25 06:12:20,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 298 transitions, 636 flow [2023-08-25 06:12:20,819 INFO L124 PetriNetUnfolderBase]: 14/293 cut-off events. [2023-08-25 06:12:20,819 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-25 06:12:20,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 293 events. 14/293 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 459 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 218. Up to 2 conditions per place. [2023-08-25 06:12:20,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 298 transitions, 636 flow [2023-08-25 06:12:20,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 278 transitions, 586 flow [2023-08-25 06:12:20,843 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 06:12:20,857 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 278 transitions, 586 flow [2023-08-25 06:12:20,861 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 278 transitions, 586 flow [2023-08-25 06:12:20,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 278 transitions, 586 flow [2023-08-25 06:12:20,937 INFO L124 PetriNetUnfolderBase]: 14/278 cut-off events. [2023-08-25 06:12:20,937 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-25 06:12:20,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 278 events. 14/278 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 455 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 218. Up to 2 conditions per place. [2023-08-25 06:12:20,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 15554 [2023-08-25 06:12:32,355 INFO L134 LiptonReduction]: Checked pairs total: 92550 [2023-08-25 06:12:32,356 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-25 06:12:32,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 06:12:32,373 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;@3322259e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 06:12:32,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2023-08-25 06:12:32,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 06:12:32,374 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 06:12:32,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 06:12:32,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:32,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 06:12:32,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:32,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1508, now seen corresponding path program 1 times [2023-08-25 06:12:32,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:32,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813651807] [2023-08-25 06:12:32,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:32,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:12:32,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:32,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813651807] [2023-08-25 06:12:32,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813651807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:32,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:32,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 06:12:32,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084573909] [2023-08-25 06:12:32,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:32,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 06:12:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 06:12:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 06:12:32,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 508 [2023-08-25 06:12:32,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 276 flow. Second operand has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:32,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:32,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 508 [2023-08-25 06:12:32,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:34,572 INFO L124 PetriNetUnfolderBase]: 10118/17978 cut-off events. [2023-08-25 06:12:34,573 INFO L125 PetriNetUnfolderBase]: For 684/684 co-relation queries the response was YES. [2023-08-25 06:12:34,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31520 conditions, 17978 events. 10118/17978 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 146310 event pairs, 6885 based on Foata normal form. 3132/17565 useless extension candidates. Maximal degree in co-relation 27084. Up to 12513 conditions per place. [2023-08-25 06:12:34,707 INFO L140 encePairwiseOnDemand]: 459/508 looper letters, 39 selfloop transitions, 0 changer transitions 0/74 dead transitions. [2023-08-25 06:12:34,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 74 transitions, 256 flow [2023-08-25 06:12:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 06:12:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 06:12:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 550 transitions. [2023-08-25 06:12:34,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5413385826771654 [2023-08-25 06:12:34,719 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 550 transitions. [2023-08-25 06:12:34,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 550 transitions. [2023-08-25 06:12:34,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:34,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 550 transitions. [2023-08-25 06:12:34,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 275.0) internal successors, (550), 2 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:34,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:34,732 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 508.0) internal successors, (1524), 3 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:34,734 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 276 flow. Second operand 2 states and 550 transitions. [2023-08-25 06:12:34,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 74 transitions, 256 flow [2023-08-25 06:12:34,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 74 transitions, 236 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-08-25 06:12:34,797 INFO L231 Difference]: Finished difference. Result has 76 places, 74 transitions, 158 flow [2023-08-25 06:12:34,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=158, PETRI_PLACES=76, PETRI_TRANSITIONS=74} [2023-08-25 06:12:34,804 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -54 predicate places. [2023-08-25 06:12:34,804 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 74 transitions, 158 flow [2023-08-25 06:12:34,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:34,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:34,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:12:34,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 06:12:34,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:34,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1242092967, now seen corresponding path program 1 times [2023-08-25 06:12:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:34,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751368846] [2023-08-25 06:12:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:34,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:12:34,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:34,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751368846] [2023-08-25 06:12:34,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751368846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:34,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:34,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 06:12:34,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075086310] [2023-08-25 06:12:34,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:34,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:12:34,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:34,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:12:34,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:12:34,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 508 [2023-08-25 06:12:34,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 74 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:34,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:34,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 508 [2023-08-25 06:12:34,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:37,968 INFO L124 PetriNetUnfolderBase]: 24842/37894 cut-off events. [2023-08-25 06:12:37,969 INFO L125 PetriNetUnfolderBase]: For 362/362 co-relation queries the response was YES. [2023-08-25 06:12:38,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70344 conditions, 37894 events. 24842/37894 cut-off events. For 362/362 co-relation queries the response was YES. Maximal size of possible extension queue 1325. Compared 258897 event pairs, 20306 based on Foata normal form. 0/32038 useless extension candidates. Maximal degree in co-relation 70341. Up to 31324 conditions per place. [2023-08-25 06:12:38,163 INFO L140 encePairwiseOnDemand]: 503/508 looper letters, 43 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2023-08-25 06:12:38,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 70 transitions, 238 flow [2023-08-25 06:12:38,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:12:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:12:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 678 transitions. [2023-08-25 06:12:38,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448818897637795 [2023-08-25 06:12:38,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 678 transitions. [2023-08-25 06:12:38,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 678 transitions. [2023-08-25 06:12:38,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:38,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 678 transitions. [2023-08-25 06:12:38,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:38,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:38,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:38,177 INFO L175 Difference]: Start difference. First operand has 76 places, 74 transitions, 158 flow. Second operand 3 states and 678 transitions. [2023-08-25 06:12:38,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 70 transitions, 238 flow [2023-08-25 06:12:38,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 70 transitions, 238 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 06:12:38,181 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 152 flow [2023-08-25 06:12:38,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2023-08-25 06:12:38,184 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -56 predicate places. [2023-08-25 06:12:38,185 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 152 flow [2023-08-25 06:12:38,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:38,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:38,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:12:38,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 06:12:38,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:38,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash -329033752, now seen corresponding path program 1 times [2023-08-25 06:12:38,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:38,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411199219] [2023-08-25 06:12:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:38,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:12:38,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:38,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411199219] [2023-08-25 06:12:38,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411199219] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:38,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:38,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 06:12:38,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580281592] [2023-08-25 06:12:38,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:38,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:12:38,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:12:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:12:38,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 508 [2023-08-25 06:12:38,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:38,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:38,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 508 [2023-08-25 06:12:38,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:39,834 INFO L124 PetriNetUnfolderBase]: 10118/17235 cut-off events. [2023-08-25 06:12:39,834 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2023-08-25 06:12:39,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30179 conditions, 17235 events. 10118/17235 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 131861 event pairs, 6885 based on Foata normal form. 0/13700 useless extension candidates. Maximal degree in co-relation 30175. Up to 12513 conditions per place. [2023-08-25 06:12:39,929 INFO L140 encePairwiseOnDemand]: 505/508 looper letters, 38 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2023-08-25 06:12:39,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 71 transitions, 234 flow [2023-08-25 06:12:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:12:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:12:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 680 transitions. [2023-08-25 06:12:39,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461942257217848 [2023-08-25 06:12:39,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 680 transitions. [2023-08-25 06:12:39,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 680 transitions. [2023-08-25 06:12:39,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:39,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 680 transitions. [2023-08-25 06:12:39,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:39,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:39,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 508.0) internal successors, (2032), 4 states have internal predecessors, (2032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:39,938 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 152 flow. Second operand 3 states and 680 transitions. [2023-08-25 06:12:39,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 71 transitions, 234 flow [2023-08-25 06:12:39,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 71 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:12:39,941 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 163 flow [2023-08-25 06:12:39,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2023-08-25 06:12:39,942 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -54 predicate places. [2023-08-25 06:12:39,942 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 163 flow [2023-08-25 06:12:39,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:39,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:39,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:12:39,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 06:12:39,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:39,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:39,947 INFO L85 PathProgramCache]: Analyzing trace with hash 521682768, now seen corresponding path program 1 times [2023-08-25 06:12:39,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:39,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113194611] [2023-08-25 06:12:39,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:39,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:12:40,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:40,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113194611] [2023-08-25 06:12:40,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113194611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:40,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:40,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:12:40,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401854586] [2023-08-25 06:12:40,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:40,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:12:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:40,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:12:40,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:12:40,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 508 [2023-08-25 06:12:40,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:40,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:40,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 508 [2023-08-25 06:12:40,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:45,729 INFO L124 PetriNetUnfolderBase]: 51444/65695 cut-off events. [2023-08-25 06:12:45,729 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-08-25 06:12:45,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129049 conditions, 65695 events. 51444/65695 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 2442. Compared 361758 event pairs, 17997 based on Foata normal form. 0/51858 useless extension candidates. Maximal degree in co-relation 129044. Up to 39046 conditions per place. [2023-08-25 06:12:46,058 INFO L140 encePairwiseOnDemand]: 500/508 looper letters, 147 selfloop transitions, 13 changer transitions 0/167 dead transitions. [2023-08-25 06:12:46,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 167 transitions, 680 flow [2023-08-25 06:12:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:12:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:12:46,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1294 transitions. [2023-08-25 06:12:46,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42454068241469817 [2023-08-25 06:12:46,062 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1294 transitions. [2023-08-25 06:12:46,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1294 transitions. [2023-08-25 06:12:46,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:46,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1294 transitions. [2023-08-25 06:12:46,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.66666666666666) internal successors, (1294), 6 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:46,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:46,072 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:46,073 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 163 flow. Second operand 6 states and 1294 transitions. [2023-08-25 06:12:46,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 167 transitions, 680 flow [2023-08-25 06:12:46,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 167 transitions, 676 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 06:12:46,076 INFO L231 Difference]: Finished difference. Result has 85 places, 83 transitions, 249 flow [2023-08-25 06:12:46,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=85, PETRI_TRANSITIONS=83} [2023-08-25 06:12:46,077 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -45 predicate places. [2023-08-25 06:12:46,077 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 83 transitions, 249 flow [2023-08-25 06:12:46,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:46,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:46,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:12:46,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 06:12:46,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:46,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:46,079 INFO L85 PathProgramCache]: Analyzing trace with hash -609703554, now seen corresponding path program 1 times [2023-08-25 06:12:46,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:46,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598230421] [2023-08-25 06:12:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:46,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:12:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:46,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598230421] [2023-08-25 06:12:46,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598230421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:46,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:46,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 06:12:46,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101151065] [2023-08-25 06:12:46,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:46,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 06:12:46,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:46,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 06:12:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:12:46,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 508 [2023-08-25 06:12:46,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 83 transitions, 249 flow. Second operand has 9 states, 9 states have (on average 185.22222222222223) internal successors, (1667), 9 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:46,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:46,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 508 [2023-08-25 06:12:46,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:52,330 INFO L124 PetriNetUnfolderBase]: 48504/61579 cut-off events. [2023-08-25 06:12:52,331 INFO L125 PetriNetUnfolderBase]: For 6924/6924 co-relation queries the response was YES. [2023-08-25 06:12:52,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137903 conditions, 61579 events. 48504/61579 cut-off events. For 6924/6924 co-relation queries the response was YES. Maximal size of possible extension queue 2320. Compared 330485 event pairs, 7247 based on Foata normal form. 600/49622 useless extension candidates. Maximal degree in co-relation 137894. Up to 26912 conditions per place. [2023-08-25 06:12:52,780 INFO L140 encePairwiseOnDemand]: 502/508 looper letters, 131 selfloop transitions, 8 changer transitions 0/146 dead transitions. [2023-08-25 06:12:52,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 667 flow [2023-08-25 06:12:52,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:12:52,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:12:52,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1408 transitions. [2023-08-25 06:12:52,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39595050618672667 [2023-08-25 06:12:52,785 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1408 transitions. [2023-08-25 06:12:52,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1408 transitions. [2023-08-25 06:12:52,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:52,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1408 transitions. [2023-08-25 06:12:52,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 201.14285714285714) internal successors, (1408), 7 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:52,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:52,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:52,797 INFO L175 Difference]: Start difference. First operand has 85 places, 83 transitions, 249 flow. Second operand 7 states and 1408 transitions. [2023-08-25 06:12:52,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 667 flow [2023-08-25 06:12:53,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 146 transitions, 663 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:12:53,516 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 257 flow [2023-08-25 06:12:53,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=257, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2023-08-25 06:12:53,517 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -41 predicate places. [2023-08-25 06:12:53,517 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 257 flow [2023-08-25 06:12:53,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 185.22222222222223) internal successors, (1667), 9 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:53,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:53,518 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] [2023-08-25 06:12:53,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 06:12:53,518 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:53,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:53,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1658937800, now seen corresponding path program 1 times [2023-08-25 06:12:53,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:53,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192126515] [2023-08-25 06:12:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:12:53,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:53,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192126515] [2023-08-25 06:12:53,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192126515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:53,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:53,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 06:12:53,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666595926] [2023-08-25 06:12:53,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:53,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 06:12:53,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:53,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 06:12:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 06:12:53,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 508 [2023-08-25 06:12:53,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:53,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:53,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 508 [2023-08-25 06:12:53,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:12:58,051 INFO L124 PetriNetUnfolderBase]: 34698/50867 cut-off events. [2023-08-25 06:12:58,052 INFO L125 PetriNetUnfolderBase]: For 11870/11870 co-relation queries the response was YES. [2023-08-25 06:12:58,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110916 conditions, 50867 events. 34698/50867 cut-off events. For 11870/11870 co-relation queries the response was YES. Maximal size of possible extension queue 1976. Compared 363095 event pairs, 15519 based on Foata normal form. 0/41865 useless extension candidates. Maximal degree in co-relation 110907. Up to 30291 conditions per place. [2023-08-25 06:12:58,404 INFO L140 encePairwiseOnDemand]: 504/508 looper letters, 75 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-08-25 06:12:58,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 112 transitions, 511 flow [2023-08-25 06:12:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 06:12:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 06:12:58,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 922 transitions. [2023-08-25 06:12:58,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453740157480315 [2023-08-25 06:12:58,407 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 922 transitions. [2023-08-25 06:12:58,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 922 transitions. [2023-08-25 06:12:58,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:12:58,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 922 transitions. [2023-08-25 06:12:58,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 230.5) internal successors, (922), 4 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:58,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:58,413 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:58,413 INFO L175 Difference]: Start difference. First operand has 89 places, 82 transitions, 257 flow. Second operand 4 states and 922 transitions. [2023-08-25 06:12:58,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 112 transitions, 511 flow [2023-08-25 06:12:58,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 112 transitions, 497 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 06:12:58,689 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 257 flow [2023-08-25 06:12:58,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2023-08-25 06:12:58,690 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -42 predicate places. [2023-08-25 06:12:58,690 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 257 flow [2023-08-25 06:12:58,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 219.5) internal successors, (878), 4 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:58,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:12:58,691 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:12:58,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 06:12:58,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:12:58,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:12:58,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1339567791, now seen corresponding path program 1 times [2023-08-25 06:12:58,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:12:58,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354598563] [2023-08-25 06:12:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:12:58,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:12:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:12:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:12:59,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:12:59,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354598563] [2023-08-25 06:12:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354598563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:12:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:12:59,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:12:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312709072] [2023-08-25 06:12:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:12:59,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:12:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:12:59,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:12:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:12:59,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 508 [2023-08-25 06:12:59,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:12:59,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:12:59,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 508 [2023-08-25 06:12:59,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:06,386 INFO L124 PetriNetUnfolderBase]: 66658/85113 cut-off events. [2023-08-25 06:13:06,386 INFO L125 PetriNetUnfolderBase]: For 18682/18682 co-relation queries the response was YES. [2023-08-25 06:13:06,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198515 conditions, 85113 events. 66658/85113 cut-off events. For 18682/18682 co-relation queries the response was YES. Maximal size of possible extension queue 2845. Compared 479842 event pairs, 36912 based on Foata normal form. 0/70370 useless extension candidates. Maximal degree in co-relation 198505. Up to 73966 conditions per place. [2023-08-25 06:13:06,891 INFO L140 encePairwiseOnDemand]: 500/508 looper letters, 131 selfloop transitions, 21 changer transitions 0/159 dead transitions. [2023-08-25 06:13:06,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 159 transitions, 757 flow [2023-08-25 06:13:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:13:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:13:06,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2023-08-25 06:13:06,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150262467191601 [2023-08-25 06:13:06,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2023-08-25 06:13:06,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2023-08-25 06:13:06,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:06,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2023-08-25 06:13:06,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:06,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:06,903 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:06,904 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 257 flow. Second operand 6 states and 1265 transitions. [2023-08-25 06:13:06,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 159 transitions, 757 flow [2023-08-25 06:13:07,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 753 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 06:13:07,392 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 435 flow [2023-08-25 06:13:07,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=435, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2023-08-25 06:13:07,392 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -34 predicate places. [2023-08-25 06:13:07,392 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 435 flow [2023-08-25 06:13:07,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:07,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:07,393 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:07,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 06:13:07,394 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:07,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1628796199, now seen corresponding path program 1 times [2023-08-25 06:13:07,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:07,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229187153] [2023-08-25 06:13:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:07,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:07,898 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:13:07,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:07,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229187153] [2023-08-25 06:13:07,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229187153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:07,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:07,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 06:13:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912843526] [2023-08-25 06:13:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:07,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 06:13:07,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:07,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 06:13:07,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:13:07,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 508 [2023-08-25 06:13:07,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 435 flow. Second operand has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:07,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:07,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 508 [2023-08-25 06:13:07,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:15,479 INFO L124 PetriNetUnfolderBase]: 66190/84397 cut-off events. [2023-08-25 06:13:15,480 INFO L125 PetriNetUnfolderBase]: For 26801/26801 co-relation queries the response was YES. [2023-08-25 06:13:15,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205416 conditions, 84397 events. 66190/84397 cut-off events. For 26801/26801 co-relation queries the response was YES. Maximal size of possible extension queue 2845. Compared 473935 event pairs, 35442 based on Foata normal form. 120/70006 useless extension candidates. Maximal degree in co-relation 205402. Up to 68629 conditions per place. [2023-08-25 06:13:15,998 INFO L140 encePairwiseOnDemand]: 502/508 looper letters, 131 selfloop transitions, 8 changer transitions 0/146 dead transitions. [2023-08-25 06:13:15,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 146 transitions, 829 flow [2023-08-25 06:13:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:13:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:13:16,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1387 transitions. [2023-08-25 06:13:16,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39004499437570306 [2023-08-25 06:13:16,002 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1387 transitions. [2023-08-25 06:13:16,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1387 transitions. [2023-08-25 06:13:16,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:16,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1387 transitions. [2023-08-25 06:13:16,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.14285714285714) internal successors, (1387), 7 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:16,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:16,010 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:16,010 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 435 flow. Second operand 7 states and 1387 transitions. [2023-08-25 06:13:16,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 146 transitions, 829 flow [2023-08-25 06:13:16,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 146 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:13:16,473 INFO L231 Difference]: Finished difference. Result has 100 places, 102 transitions, 441 flow [2023-08-25 06:13:16,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=441, PETRI_PLACES=100, PETRI_TRANSITIONS=102} [2023-08-25 06:13:16,473 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -30 predicate places. [2023-08-25 06:13:16,474 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 102 transitions, 441 flow [2023-08-25 06:13:16,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.55555555555554) internal successors, (1679), 9 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:16,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:16,475 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:16,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 06:13:16,475 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:16,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1309722303, now seen corresponding path program 1 times [2023-08-25 06:13:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:16,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626982162] [2023-08-25 06:13:16,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:16,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:13:16,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:16,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626982162] [2023-08-25 06:13:16,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626982162] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:16,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:16,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 06:13:16,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856031255] [2023-08-25 06:13:16,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:16,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 06:13:16,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:16,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 06:13:16,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 06:13:16,559 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 508 [2023-08-25 06:13:16,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 102 transitions, 441 flow. Second operand has 4 states, 4 states have (on average 221.25) internal successors, (885), 4 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:16,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:16,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 508 [2023-08-25 06:13:16,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:22,774 INFO L124 PetriNetUnfolderBase]: 46824/71204 cut-off events. [2023-08-25 06:13:22,775 INFO L125 PetriNetUnfolderBase]: For 35620/35620 co-relation queries the response was YES. [2023-08-25 06:13:23,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165931 conditions, 71204 events. 46824/71204 cut-off events. For 35620/35620 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 557520 event pairs, 22750 based on Foata normal form. 2066/63041 useless extension candidates. Maximal degree in co-relation 165917. Up to 44514 conditions per place. [2023-08-25 06:13:23,451 INFO L140 encePairwiseOnDemand]: 504/508 looper letters, 109 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2023-08-25 06:13:23,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 149 transitions, 913 flow [2023-08-25 06:13:23,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 06:13:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 06:13:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 922 transitions. [2023-08-25 06:13:23,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.453740157480315 [2023-08-25 06:13:23,454 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 922 transitions. [2023-08-25 06:13:23,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 922 transitions. [2023-08-25 06:13:23,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:23,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 922 transitions. [2023-08-25 06:13:23,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 230.5) internal successors, (922), 4 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:23,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:23,461 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:23,462 INFO L175 Difference]: Start difference. First operand has 100 places, 102 transitions, 441 flow. Second operand 4 states and 922 transitions. [2023-08-25 06:13:23,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 149 transitions, 913 flow [2023-08-25 06:13:23,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 149 transitions, 899 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 06:13:23,858 INFO L231 Difference]: Finished difference. Result has 99 places, 103 transitions, 441 flow [2023-08-25 06:13:23,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=441, PETRI_PLACES=99, PETRI_TRANSITIONS=103} [2023-08-25 06:13:23,859 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -31 predicate places. [2023-08-25 06:13:23,859 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 103 transitions, 441 flow [2023-08-25 06:13:23,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 221.25) internal successors, (885), 4 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:23,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:23,860 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:23,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 06:13:23,860 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:23,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1879494992, now seen corresponding path program 1 times [2023-08-25 06:13:23,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:23,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978224493] [2023-08-25 06:13:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:23,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 06:13:24,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:24,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978224493] [2023-08-25 06:13:24,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978224493] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:24,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:24,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:13:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294445576] [2023-08-25 06:13:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:24,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:13:24,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:13:24,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:13:24,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 508 [2023-08-25 06:13:24,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:24,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:24,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 508 [2023-08-25 06:13:24,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:33,694 INFO L124 PetriNetUnfolderBase]: 82444/105217 cut-off events. [2023-08-25 06:13:33,694 INFO L125 PetriNetUnfolderBase]: For 53441/53441 co-relation queries the response was YES. [2023-08-25 06:13:34,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273155 conditions, 105217 events. 82444/105217 cut-off events. For 53441/53441 co-relation queries the response was YES. Maximal size of possible extension queue 3336. Compared 608885 event pairs, 50368 based on Foata normal form. 0/87243 useless extension candidates. Maximal degree in co-relation 273140. Up to 98817 conditions per place. [2023-08-25 06:13:34,432 INFO L140 encePairwiseOnDemand]: 500/508 looper letters, 127 selfloop transitions, 29 changer transitions 0/163 dead transitions. [2023-08-25 06:13:34,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 163 transitions, 996 flow [2023-08-25 06:13:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:13:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:13:34,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2023-08-25 06:13:34,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068241469816273 [2023-08-25 06:13:34,435 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1240 transitions. [2023-08-25 06:13:34,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1240 transitions. [2023-08-25 06:13:34,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:34,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1240 transitions. [2023-08-25 06:13:34,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:34,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:34,442 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:34,442 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 441 flow. Second operand 6 states and 1240 transitions. [2023-08-25 06:13:34,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 163 transitions, 996 flow [2023-08-25 06:13:35,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 163 transitions, 992 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 06:13:35,039 INFO L231 Difference]: Finished difference. Result has 107 places, 131 transitions, 751 flow [2023-08-25 06:13:35,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=751, PETRI_PLACES=107, PETRI_TRANSITIONS=131} [2023-08-25 06:13:35,039 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -23 predicate places. [2023-08-25 06:13:35,040 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 131 transitions, 751 flow [2023-08-25 06:13:35,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:35,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:35,040 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:35,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 06:13:35,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:35,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:35,041 INFO L85 PathProgramCache]: Analyzing trace with hash -612104432, now seen corresponding path program 1 times [2023-08-25 06:13:35,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:35,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036125585] [2023-08-25 06:13:35,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:35,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 06:13:35,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:35,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036125585] [2023-08-25 06:13:35,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036125585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:35,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:35,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 06:13:35,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093514939] [2023-08-25 06:13:35,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:35,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 06:13:35,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:35,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 06:13:35,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:13:35,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 508 [2023-08-25 06:13:35,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 131 transitions, 751 flow. Second operand has 9 states, 9 states have (on average 187.77777777777777) internal successors, (1690), 9 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) [2023-08-25 06:13:35,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:35,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 508 [2023-08-25 06:13:35,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:45,523 INFO L124 PetriNetUnfolderBase]: 82357/105084 cut-off events. [2023-08-25 06:13:45,523 INFO L125 PetriNetUnfolderBase]: For 60985/60985 co-relation queries the response was YES. [2023-08-25 06:13:46,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276546 conditions, 105084 events. 82357/105084 cut-off events. For 60985/60985 co-relation queries the response was YES. Maximal size of possible extension queue 3336. Compared 607919 event pairs, 50104 based on Foata normal form. 30/87198 useless extension candidates. Maximal degree in co-relation 276527. Up to 97702 conditions per place. [2023-08-25 06:13:46,353 INFO L140 encePairwiseOnDemand]: 502/508 looper letters, 143 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2023-08-25 06:13:46,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 158 transitions, 1153 flow [2023-08-25 06:13:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:13:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:13:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1370 transitions. [2023-08-25 06:13:46,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38526434195725534 [2023-08-25 06:13:46,357 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1370 transitions. [2023-08-25 06:13:46,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1370 transitions. [2023-08-25 06:13:46,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:46,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1370 transitions. [2023-08-25 06:13:46,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 195.71428571428572) internal successors, (1370), 7 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:46,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:46,364 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:46,364 INFO L175 Difference]: Start difference. First operand has 107 places, 131 transitions, 751 flow. Second operand 7 states and 1370 transitions. [2023-08-25 06:13:46,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 158 transitions, 1153 flow [2023-08-25 06:13:47,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 158 transitions, 1145 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:13:47,430 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 755 flow [2023-08-25 06:13:47,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=755, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2023-08-25 06:13:47,430 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -19 predicate places. [2023-08-25 06:13:47,430 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 755 flow [2023-08-25 06:13:47,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 187.77777777777777) internal successors, (1690), 9 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) [2023-08-25 06:13:47,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:47,431 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:47,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 06:13:47,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:47,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 260556989, now seen corresponding path program 1 times [2023-08-25 06:13:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:47,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201884221] [2023-08-25 06:13:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:13:47,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:47,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201884221] [2023-08-25 06:13:47,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201884221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:47,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:47,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 06:13:47,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041251226] [2023-08-25 06:13:47,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:47,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 06:13:47,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:47,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 06:13:47,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 06:13:47,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 508 [2023-08-25 06:13:47,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 755 flow. Second operand has 4 states, 4 states have (on average 222.5) internal successors, (890), 4 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:47,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:47,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 508 [2023-08-25 06:13:47,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:13:57,260 INFO L124 PetriNetUnfolderBase]: 64911/94284 cut-off events. [2023-08-25 06:13:57,260 INFO L125 PetriNetUnfolderBase]: For 95601/97821 co-relation queries the response was YES. [2023-08-25 06:13:57,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253440 conditions, 94284 events. 64911/94284 cut-off events. For 95601/97821 co-relation queries the response was YES. Maximal size of possible extension queue 3330. Compared 706206 event pairs, 28890 based on Foata normal form. 1110/85347 useless extension candidates. Maximal degree in co-relation 253421. Up to 55317 conditions per place. [2023-08-25 06:13:58,058 INFO L140 encePairwiseOnDemand]: 504/508 looper letters, 138 selfloop transitions, 27 changer transitions 0/204 dead transitions. [2023-08-25 06:13:58,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 204 transitions, 1617 flow [2023-08-25 06:13:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 06:13:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 06:13:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 925 transitions. [2023-08-25 06:13:58,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4552165354330709 [2023-08-25 06:13:58,060 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 925 transitions. [2023-08-25 06:13:58,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 925 transitions. [2023-08-25 06:13:58,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:13:58,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 925 transitions. [2023-08-25 06:13:58,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 231.25) internal successors, (925), 4 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:58,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:58,064 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 508.0) internal successors, (2540), 5 states have internal predecessors, (2540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:58,064 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 755 flow. Second operand 4 states and 925 transitions. [2023-08-25 06:13:58,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 204 transitions, 1617 flow [2023-08-25 06:13:58,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 204 transitions, 1603 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 06:13:58,967 INFO L231 Difference]: Finished difference. Result has 110 places, 155 transitions, 1105 flow [2023-08-25 06:13:58,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1105, PETRI_PLACES=110, PETRI_TRANSITIONS=155} [2023-08-25 06:13:58,968 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -20 predicate places. [2023-08-25 06:13:58,968 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 155 transitions, 1105 flow [2023-08-25 06:13:58,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 222.5) internal successors, (890), 4 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:58,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:13:58,968 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:13:58,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 06:13:58,969 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:13:58,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:13:58,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1705277847, now seen corresponding path program 1 times [2023-08-25 06:13:58,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:13:58,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975798791] [2023-08-25 06:13:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:13:58,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:13:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:13:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:13:59,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:13:59,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975798791] [2023-08-25 06:13:59,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975798791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:13:59,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:13:59,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:13:59,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750056016] [2023-08-25 06:13:59,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:13:59,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:13:59,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:13:59,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:13:59,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:13:59,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 508 [2023-08-25 06:13:59,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 155 transitions, 1105 flow. Second operand has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:13:59,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:13:59,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 508 [2023-08-25 06:13:59,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:14:12,077 INFO L124 PetriNetUnfolderBase]: 96094/123666 cut-off events. [2023-08-25 06:14:12,078 INFO L125 PetriNetUnfolderBase]: For 117650/121715 co-relation queries the response was YES. [2023-08-25 06:14:12,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355477 conditions, 123666 events. 96094/123666 cut-off events. For 117650/121715 co-relation queries the response was YES. Maximal size of possible extension queue 4006. Compared 751067 event pairs, 64837 based on Foata normal form. 4065/116877 useless extension candidates. Maximal degree in co-relation 355457. Up to 118338 conditions per place. [2023-08-25 06:14:13,114 INFO L140 encePairwiseOnDemand]: 501/508 looper letters, 163 selfloop transitions, 21 changer transitions 0/191 dead transitions. [2023-08-25 06:14:13,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 191 transitions, 1667 flow [2023-08-25 06:14:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:14:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:14:13,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2023-08-25 06:14:13,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39993438320209973 [2023-08-25 06:14:13,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2023-08-25 06:14:13,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2023-08-25 06:14:13,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:14:13,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2023-08-25 06:14:13,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:13,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:13,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 508.0) internal successors, (3556), 7 states have internal predecessors, (3556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:13,121 INFO L175 Difference]: Start difference. First operand has 110 places, 155 transitions, 1105 flow. Second operand 6 states and 1219 transitions. [2023-08-25 06:14:13,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 191 transitions, 1667 flow [2023-08-25 06:14:14,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 191 transitions, 1639 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 06:14:14,343 INFO L231 Difference]: Finished difference. Result has 118 places, 175 transitions, 1339 flow [2023-08-25 06:14:14,343 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1339, PETRI_PLACES=118, PETRI_TRANSITIONS=175} [2023-08-25 06:14:14,344 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -12 predicate places. [2023-08-25 06:14:14,344 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 175 transitions, 1339 flow [2023-08-25 06:14:14,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.5) internal successors, (1185), 6 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:14,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:14:14,345 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:14:14,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 06:14:14,345 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:14:14,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:14:14,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1670656410, now seen corresponding path program 1 times [2023-08-25 06:14:14,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:14:14,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154425987] [2023-08-25 06:14:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:14:14,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:14:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:14:14,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:14:14,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:14:14,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154425987] [2023-08-25 06:14:14,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154425987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:14:14,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:14:14,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 06:14:14,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434717970] [2023-08-25 06:14:14,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:14:14,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 06:14:14,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:14:14,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 06:14:14,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:14:14,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 508 [2023-08-25 06:14:14,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 175 transitions, 1339 flow. Second operand has 9 states, 9 states have (on average 188.88888888888889) internal successors, (1700), 9 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:14,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:14:14,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 508 [2023-08-25 06:14:14,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:14:27,959 INFO L124 PetriNetUnfolderBase]: 96085/123546 cut-off events. [2023-08-25 06:14:27,959 INFO L125 PetriNetUnfolderBase]: For 130042/134127 co-relation queries the response was YES. [2023-08-25 06:14:28,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354908 conditions, 123546 events. 96085/123546 cut-off events. For 130042/134127 co-relation queries the response was YES. Maximal size of possible extension queue 4002. Compared 749468 event pairs, 64813 based on Foata normal form. 4091/116811 useless extension candidates. Maximal degree in co-relation 354884. Up to 118211 conditions per place. [2023-08-25 06:14:29,278 INFO L140 encePairwiseOnDemand]: 502/508 looper letters, 175 selfloop transitions, 8 changer transitions 0/190 dead transitions. [2023-08-25 06:14:29,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 190 transitions, 1765 flow [2023-08-25 06:14:29,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:14:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:14:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1357 transitions. [2023-08-25 06:14:29,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3816085489313836 [2023-08-25 06:14:29,282 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1357 transitions. [2023-08-25 06:14:29,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1357 transitions. [2023-08-25 06:14:29,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:14:29,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1357 transitions. [2023-08-25 06:14:29,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 193.85714285714286) internal successors, (1357), 7 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:29,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:29,289 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 508.0) internal successors, (4064), 8 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:29,289 INFO L175 Difference]: Start difference. First operand has 118 places, 175 transitions, 1339 flow. Second operand 7 states and 1357 transitions. [2023-08-25 06:14:29,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 190 transitions, 1765 flow [2023-08-25 06:14:30,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 190 transitions, 1759 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:14:30,917 INFO L231 Difference]: Finished difference. Result has 122 places, 174 transitions, 1345 flow [2023-08-25 06:14:30,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=508, PETRI_DIFFERENCE_MINUEND_FLOW=1329, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1345, PETRI_PLACES=122, PETRI_TRANSITIONS=174} [2023-08-25 06:14:30,918 INFO L281 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2023-08-25 06:14:30,918 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 174 transitions, 1345 flow [2023-08-25 06:14:30,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 188.88888888888889) internal successors, (1700), 9 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:30,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:14:30,919 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:14:30,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 06:14:30,919 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-08-25 06:14:30,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:14:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1489054445, now seen corresponding path program 1 times [2023-08-25 06:14:30,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:14:30,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130718848] [2023-08-25 06:14:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:14:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:14:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:14:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 06:14:31,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:14:31,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130718848] [2023-08-25 06:14:31,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130718848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:14:31,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:14:31,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 06:14:31,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555860158] [2023-08-25 06:14:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:14:31,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 06:14:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:14:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 06:14:31,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 06:14:31,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 508 [2023-08-25 06:14:31,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 174 transitions, 1345 flow. Second operand has 4 states, 4 states have (on average 224.5) internal successors, (898), 4 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:14:31,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:14:31,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 508 [2023-08-25 06:14:31,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand