/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/parallel-parallel-sum-1-dsl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:34:30,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:34:30,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 05:34:30,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:34:30,649 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:34:30,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:34:30,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:34:30,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:34:30,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:34:30,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:34:30,685 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:34:30,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:34:30,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:34:30,686 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:34:30,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:34:30,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:34:30,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:34:30,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:34:30,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:34:30,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:34:30,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:34:30,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:34:30,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:34:30,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:34:30,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:34:30,690 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:34:30,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:34:30,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:34:30,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:34:30,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:34:30,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:34:30,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:34:30,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:34:30,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:34:30,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:34:30,693 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:34:31,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:34:31,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:34:31,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:34:31,048 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:34:31,048 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:34:31,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-08-25 05:34:32,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:34:32,399 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:34:32,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1-dsl.wvr.c [2023-08-25 05:34:32,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7f0773e/a1de34fbaec54dba96f1787220c249c9/FLAGe6044784a [2023-08-25 05:34:32,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7f0773e/a1de34fbaec54dba96f1787220c249c9 [2023-08-25 05:34:32,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:34:32,419 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:34:32,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:34:32,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:34:32,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:34:32,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4dd0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32, skipping insertion in model container [2023-08-25 05:34:32,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,444 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:34:32,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:34:32,681 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:34:32,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:34:32,748 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:34:32,748 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:34:32,754 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:34:32,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32 WrapperNode [2023-08-25 05:34:32,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:34:32,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:34:32,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:34:32,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:34:32,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,827 INFO L138 Inliner]: procedures = 29, calls = 96, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 511 [2023-08-25 05:34:32,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:34:32,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:34:32,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:34:32,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:34:32,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:34:32,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:34:32,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:34:32,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:34:32,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (1/1) ... [2023-08-25 05:34:32,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:34:32,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:34:32,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 05:34:32,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 05:34:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:34:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:34:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:34:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:34:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:34:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:34:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:34:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:34:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:34:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:34:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 05:34:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 05:34:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:34:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-25 05:34:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-25 05:34:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-08-25 05:34:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-08-25 05:34:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:34:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:34:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 05:34:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:34:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:34:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:34:33,004 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:34:33,152 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:34:33,154 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:34:33,842 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:34:34,162 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:34:34,162 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-08-25 05:34:34,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:34:34 BoogieIcfgContainer [2023-08-25 05:34:34,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:34:34,167 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:34:34,167 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:34:34,170 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:34:34,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:34:32" (1/3) ... [2023-08-25 05:34:34,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda8528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:34:34, skipping insertion in model container [2023-08-25 05:34:34,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:34:32" (2/3) ... [2023-08-25 05:34:34,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dda8528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:34:34, skipping insertion in model container [2023-08-25 05:34:34,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:34:34" (3/3) ... [2023-08-25 05:34:34,174 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2023-08-25 05:34:34,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:34:34,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-08-25 05:34:34,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:34:34,320 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-25 05:34:34,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 438 transitions, 948 flow [2023-08-25 05:34:34,534 INFO L124 PetriNetUnfolderBase]: 18/398 cut-off events. [2023-08-25 05:34:34,535 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 05:34:34,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 398 events. 18/398 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 794 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 335. Up to 3 conditions per place. [2023-08-25 05:34:34,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 438 transitions, 948 flow [2023-08-25 05:34:34,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 390 places, 389 transitions, 826 flow [2023-08-25 05:34:34,555 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:34:34,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 390 places, 389 transitions, 826 flow [2023-08-25 05:34:34,567 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 390 places, 389 transitions, 826 flow [2023-08-25 05:34:34,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 390 places, 389 transitions, 826 flow [2023-08-25 05:34:34,634 INFO L124 PetriNetUnfolderBase]: 18/389 cut-off events. [2023-08-25 05:34:34,634 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 05:34:34,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 389 events. 18/389 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 793 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 335. Up to 3 conditions per place. [2023-08-25 05:34:34,652 INFO L119 LiptonReduction]: Number of co-enabled transitions 28136 [2023-08-25 05:34:43,355 INFO L134 LiptonReduction]: Checked pairs total: 199034 [2023-08-25 05:34:43,355 INFO L136 LiptonReduction]: Total number of compositions: 387 [2023-08-25 05:34:43,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:34:43,372 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;@11869218, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:34:43,373 INFO L358 AbstractCegarLoop]: Starting to check reachability of 148 error locations. [2023-08-25 05:34:43,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:34:43,374 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:34:43,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:34:43,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:34:43,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:34:43,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:34:43,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:34:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2247, now seen corresponding path program 1 times [2023-08-25 05:34:43,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:34:43,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882673278] [2023-08-25 05:34:43,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:34:43,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:34:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:34:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:34:43,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:34:43,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882673278] [2023-08-25 05:34:43,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882673278] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:34:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:34:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:34:43,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023707651] [2023-08-25 05:34:43,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:34:43,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:34:43,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:34:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:34:43,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:34:43,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 829 [2023-08-25 05:34:43,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 172 transitions, 392 flow. Second operand has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:43,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:34:43,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 829 [2023-08-25 05:34:43,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:34:45,571 INFO L124 PetriNetUnfolderBase]: 8482/16656 cut-off events. [2023-08-25 05:34:45,572 INFO L125 PetriNetUnfolderBase]: For 2181/2291 co-relation queries the response was YES. [2023-08-25 05:34:45,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29537 conditions, 16656 events. 8482/16656 cut-off events. For 2181/2291 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 134632 event pairs, 5973 based on Foata normal form. 131/13070 useless extension candidates. Maximal degree in co-relation 28842. Up to 10663 conditions per place. [2023-08-25 05:34:45,724 INFO L140 encePairwiseOnDemand]: 758/829 looper letters, 45 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2023-08-25 05:34:45,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 101 transitions, 340 flow [2023-08-25 05:34:45,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:34:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:34:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 792 transitions. [2023-08-25 05:34:45,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776839565741858 [2023-08-25 05:34:45,742 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 792 transitions. [2023-08-25 05:34:45,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 792 transitions. [2023-08-25 05:34:45,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:34:45,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 792 transitions. [2023-08-25 05:34:45,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 396.0) internal successors, (792), 2 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:45,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 829.0) internal successors, (2487), 3 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:45,760 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 829.0) internal successors, (2487), 3 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:45,762 INFO L175 Difference]: Start difference. First operand has 182 places, 172 transitions, 392 flow. Second operand 2 states and 792 transitions. [2023-08-25 05:34:45,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 101 transitions, 340 flow [2023-08-25 05:34:45,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 101 transitions, 308 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-25 05:34:45,793 INFO L231 Difference]: Finished difference. Result has 100 places, 101 transitions, 218 flow [2023-08-25 05:34:45,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=101} [2023-08-25 05:34:45,797 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -82 predicate places. [2023-08-25 05:34:45,798 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 101 transitions, 218 flow [2023-08-25 05:34:45,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 338.5) internal successors, (677), 2 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:34:45,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:34:45,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:34:45,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:34:45,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:34:45,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:34:45,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1616422576, now seen corresponding path program 1 times [2023-08-25 05:34:45,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:34:45,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386047506] [2023-08-25 05:34:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:34:45,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:34:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:34:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:34:46,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:34:46,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386047506] [2023-08-25 05:34:46,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386047506] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:34:46,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:34:46,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:34:46,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299641373] [2023-08-25 05:34:46,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:34:46,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:34:46,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:34:46,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:34:46,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:34:46,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 829 [2023-08-25 05:34:46,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 101 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 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 05:34:46,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:34:46,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 829 [2023-08-25 05:34:46,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:21,138 INFO L124 PetriNetUnfolderBase]: 385006/464038 cut-off events. [2023-08-25 05:35:21,138 INFO L125 PetriNetUnfolderBase]: For 4752/4752 co-relation queries the response was YES. [2023-08-25 05:35:21,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931772 conditions, 464038 events. 385006/464038 cut-off events. For 4752/4752 co-relation queries the response was YES. Maximal size of possible extension queue 4954. Compared 2281711 event pairs, 76547 based on Foata normal form. 0/356491 useless extension candidates. Maximal degree in co-relation 931769. Up to 136946 conditions per place. [2023-08-25 05:35:23,379 INFO L140 encePairwiseOnDemand]: 824/829 looper letters, 308 selfloop transitions, 4 changer transitions 0/332 dead transitions. [2023-08-25 05:35:23,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 332 transitions, 1352 flow [2023-08-25 05:35:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1981 transitions. [2023-08-25 05:35:23,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39827100924809006 [2023-08-25 05:35:23,385 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1981 transitions. [2023-08-25 05:35:23,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1981 transitions. [2023-08-25 05:35:23,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:23,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1981 transitions. [2023-08-25 05:35:23,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 330.1666666666667) internal successors, (1981), 6 states have internal predecessors, (1981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,401 INFO L175 Difference]: Start difference. First operand has 100 places, 101 transitions, 218 flow. Second operand 6 states and 1981 transitions. [2023-08-25 05:35:23,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 332 transitions, 1352 flow [2023-08-25 05:35:23,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 332 transitions, 1352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:35:23,409 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 224 flow [2023-08-25 05:35:23,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2023-08-25 05:35:23,410 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -78 predicate places. [2023-08-25 05:35:23,410 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 224 flow [2023-08-25 05:35:23,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 279.8333333333333) internal successors, (1679), 6 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 05:35:23,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:23,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:23,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:35:23,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:35:23,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:23,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1284036768, now seen corresponding path program 1 times [2023-08-25 05:35:23,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:23,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557334285] [2023-08-25 05:35:23,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:23,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:23,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557334285] [2023-08-25 05:35:23,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557334285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:23,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:23,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:23,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210345469] [2023-08-25 05:35:23,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:23,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:23,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:23,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:23,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:23,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 829 [2023-08-25 05:35:23,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:23,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 829 [2023-08-25 05:35:23,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:53,346 INFO L124 PetriNetUnfolderBase]: 354254/433077 cut-off events. [2023-08-25 05:35:53,346 INFO L125 PetriNetUnfolderBase]: For 42303/42303 co-relation queries the response was YES. [2023-08-25 05:35:53,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905099 conditions, 433077 events. 354254/433077 cut-off events. For 42303/42303 co-relation queries the response was YES. Maximal size of possible extension queue 4525. Compared 2148640 event pairs, 76124 based on Foata normal form. 0/340092 useless extension candidates. Maximal degree in co-relation 905095. Up to 177616 conditions per place. [2023-08-25 05:35:55,387 INFO L140 encePairwiseOnDemand]: 823/829 looper letters, 248 selfloop transitions, 5 changer transitions 0/271 dead transitions. [2023-08-25 05:35:55,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 271 transitions, 1132 flow [2023-08-25 05:35:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1928 transitions. [2023-08-25 05:35:55,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38761560112585447 [2023-08-25 05:35:55,395 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1928 transitions. [2023-08-25 05:35:55,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1928 transitions. [2023-08-25 05:35:55,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:55,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1928 transitions. [2023-08-25 05:35:55,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 321.3333333333333) internal successors, (1928), 6 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:55,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:55,410 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:55,410 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 224 flow. Second operand 6 states and 1928 transitions. [2023-08-25 05:35:55,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 271 transitions, 1132 flow [2023-08-25 05:35:55,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 271 transitions, 1097 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:55,476 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 225 flow [2023-08-25 05:35:55,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2023-08-25 05:35:55,477 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -78 predicate places. [2023-08-25 05:35:55,478 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 225 flow [2023-08-25 05:35:55,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:55,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:55,479 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] [2023-08-25 05:35:55,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:35:55,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:35:55,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:55,483 INFO L85 PathProgramCache]: Analyzing trace with hash -354134477, now seen corresponding path program 1 times [2023-08-25 05:35:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:55,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302476915] [2023-08-25 05:35:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:55,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:55,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:55,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302476915] [2023-08-25 05:35:55,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302476915] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:55,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:55,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:55,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197917211] [2023-08-25 05:35:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:55,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:55,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 829 [2023-08-25 05:35:55,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 281.8333333333333) internal successors, (1691), 6 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:55,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:55,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 829 [2023-08-25 05:35:55,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:21,956 INFO L124 PetriNetUnfolderBase]: 321155/393362 cut-off events. [2023-08-25 05:36:21,956 INFO L125 PetriNetUnfolderBase]: For 24174/24174 co-relation queries the response was YES. [2023-08-25 05:36:22,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819920 conditions, 393362 events. 321155/393362 cut-off events. For 24174/24174 co-relation queries the response was YES. Maximal size of possible extension queue 4063. Compared 1908696 event pairs, 69984 based on Foata normal form. 0/314280 useless extension candidates. Maximal degree in co-relation 819916. Up to 159133 conditions per place. [2023-08-25 05:36:23,697 INFO L140 encePairwiseOnDemand]: 823/829 looper letters, 267 selfloop transitions, 5 changer transitions 0/290 dead transitions. [2023-08-25 05:36:23,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 290 transitions, 1223 flow [2023-08-25 05:36:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:36:23,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:36:23,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1947 transitions. [2023-08-25 05:36:23,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3914354644149578 [2023-08-25 05:36:23,703 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1947 transitions. [2023-08-25 05:36:23,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1947 transitions. [2023-08-25 05:36:23,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:23,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1947 transitions. [2023-08-25 05:36:23,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 324.5) internal successors, (1947), 6 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:23,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:23,717 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:23,717 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 225 flow. Second operand 6 states and 1947 transitions. [2023-08-25 05:36:23,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 290 transitions, 1223 flow [2023-08-25 05:36:24,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 290 transitions, 1173 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:36:24,073 INFO L231 Difference]: Finished difference. Result has 103 places, 98 transitions, 223 flow [2023-08-25 05:36:24,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=103, PETRI_TRANSITIONS=98} [2023-08-25 05:36:24,074 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -79 predicate places. [2023-08-25 05:36:24,075 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 98 transitions, 223 flow [2023-08-25 05:36:24,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 281.8333333333333) internal successors, (1691), 6 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:24,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:36:24,076 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] [2023-08-25 05:36:24,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:36:24,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:36:24,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:36:24,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1469093851, now seen corresponding path program 1 times [2023-08-25 05:36:24,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:36:24,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988946563] [2023-08-25 05:36:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:24,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:36:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:24,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:36:24,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:36:24,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988946563] [2023-08-25 05:36:24,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988946563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:36:24,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:36:24,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:36:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614828339] [2023-08-25 05:36:24,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:36:24,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:36:24,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:36:24,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:36:24,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:36:24,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 829 [2023-08-25 05:36:24,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 98 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 282.8333333333333) internal successors, (1697), 6 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:24,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:36:24,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 829 [2023-08-25 05:36:24,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:53,384 INFO L124 PetriNetUnfolderBase]: 327690/400986 cut-off events. [2023-08-25 05:36:53,385 INFO L125 PetriNetUnfolderBase]: For 10551/10551 co-relation queries the response was YES. [2023-08-25 05:36:54,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836391 conditions, 400986 events. 327690/400986 cut-off events. For 10551/10551 co-relation queries the response was YES. Maximal size of possible extension queue 4101. Compared 1929040 event pairs, 213016 based on Foata normal form. 0/322283 useless extension candidates. Maximal degree in co-relation 836387. Up to 333836 conditions per place. [2023-08-25 05:36:55,161 INFO L140 encePairwiseOnDemand]: 823/829 looper letters, 231 selfloop transitions, 5 changer transitions 0/253 dead transitions. [2023-08-25 05:36:55,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 253 transitions, 1077 flow [2023-08-25 05:36:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:36:55,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:36:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1911 transitions. [2023-08-25 05:36:55,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3841978287092883 [2023-08-25 05:36:55,167 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1911 transitions. [2023-08-25 05:36:55,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1911 transitions. [2023-08-25 05:36:55,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:55,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1911 transitions. [2023-08-25 05:36:55,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:55,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:55,179 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:55,179 INFO L175 Difference]: Start difference. First operand has 103 places, 98 transitions, 223 flow. Second operand 6 states and 1911 transitions. [2023-08-25 05:36:55,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 253 transitions, 1077 flow [2023-08-25 05:36:59,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 253 transitions, 1027 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:36:59,568 INFO L231 Difference]: Finished difference. Result has 102 places, 97 transitions, 221 flow [2023-08-25 05:36:59,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=102, PETRI_TRANSITIONS=97} [2023-08-25 05:36:59,569 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -80 predicate places. [2023-08-25 05:36:59,569 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 97 transitions, 221 flow [2023-08-25 05:36:59,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 282.8333333333333) internal successors, (1697), 6 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:59,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:36:59,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:36:59,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:36:59,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:36:59,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:36:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2023327613, now seen corresponding path program 1 times [2023-08-25 05:36:59,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:36:59,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42575748] [2023-08-25 05:36:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:59,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:36:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:36:59,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:36:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42575748] [2023-08-25 05:36:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42575748] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:36:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:36:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:36:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734429687] [2023-08-25 05:36:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:36:59,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:36:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:36:59,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:36:59,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:36:59,834 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 829 [2023-08-25 05:36:59,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:59,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:36:59,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 829 [2023-08-25 05:36:59,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:37:24,860 INFO L124 PetriNetUnfolderBase]: 318609/388966 cut-off events. [2023-08-25 05:37:24,860 INFO L125 PetriNetUnfolderBase]: For 5577/5577 co-relation queries the response was YES. [2023-08-25 05:37:25,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795939 conditions, 388966 events. 318609/388966 cut-off events. For 5577/5577 co-relation queries the response was YES. Maximal size of possible extension queue 4085. Compared 1849427 event pairs, 206749 based on Foata normal form. 0/314096 useless extension candidates. Maximal degree in co-relation 795935. Up to 324107 conditions per place. [2023-08-25 05:37:26,498 INFO L140 encePairwiseOnDemand]: 823/829 looper letters, 250 selfloop transitions, 5 changer transitions 0/272 dead transitions. [2023-08-25 05:37:26,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 272 transitions, 1153 flow [2023-08-25 05:37:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:37:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:37:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1930 transitions. [2023-08-25 05:37:26,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38801769199839165 [2023-08-25 05:37:26,503 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1930 transitions. [2023-08-25 05:37:26,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1930 transitions. [2023-08-25 05:37:26,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:37:26,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1930 transitions. [2023-08-25 05:37:26,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 321.6666666666667) internal successors, (1930), 6 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:26,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:26,514 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:26,514 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 221 flow. Second operand 6 states and 1930 transitions. [2023-08-25 05:37:26,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 272 transitions, 1153 flow [2023-08-25 05:37:26,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 272 transitions, 1103 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:37:26,972 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 219 flow [2023-08-25 05:37:26,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2023-08-25 05:37:26,973 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -81 predicate places. [2023-08-25 05:37:26,973 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 219 flow [2023-08-25 05:37:26,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:26,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:37:26,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:37:26,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:37:26,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:37:26,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:37:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash 409548997, now seen corresponding path program 1 times [2023-08-25 05:37:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:37:26,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090437410] [2023-08-25 05:37:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:37:26,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:37:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:37:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:37:27,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:37:27,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090437410] [2023-08-25 05:37:27,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090437410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:37:27,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:37:27,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:37:27,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68593097] [2023-08-25 05:37:27,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:37:27,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:37:27,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:37:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:37:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:37:27,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 829 [2023-08-25 05:37:27,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:27,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:37:27,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 829 [2023-08-25 05:37:27,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:37:51,398 INFO L124 PetriNetUnfolderBase]: 299164/366613 cut-off events. [2023-08-25 05:37:51,398 INFO L125 PetriNetUnfolderBase]: For 4119/4119 co-relation queries the response was YES. [2023-08-25 05:37:51,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748165 conditions, 366613 events. 299164/366613 cut-off events. For 4119/4119 co-relation queries the response was YES. Maximal size of possible extension queue 4023. Compared 1766277 event pairs, 228156 based on Foata normal form. 0/295532 useless extension candidates. Maximal degree in co-relation 748161. Up to 357690 conditions per place. [2023-08-25 05:37:52,875 INFO L140 encePairwiseOnDemand]: 824/829 looper letters, 180 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2023-08-25 05:37:52,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 203 transitions, 865 flow [2023-08-25 05:37:52,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:37:52,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:37:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1853 transitions. [2023-08-25 05:37:52,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3725371934057097 [2023-08-25 05:37:52,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1853 transitions. [2023-08-25 05:37:52,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1853 transitions. [2023-08-25 05:37:52,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:37:52,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1853 transitions. [2023-08-25 05:37:52,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 308.8333333333333) internal successors, (1853), 6 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,890 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,890 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 219 flow. Second operand 6 states and 1853 transitions. [2023-08-25 05:37:52,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 203 transitions, 865 flow [2023-08-25 05:37:53,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 203 transitions, 815 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 05:37:53,434 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 215 flow [2023-08-25 05:37:53,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=100, PETRI_TRANSITIONS=95} [2023-08-25 05:37:53,435 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -82 predicate places. [2023-08-25 05:37:53,435 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 215 flow [2023-08-25 05:37:53,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:53,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:37:53,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:53,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:37:53,436 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:37:53,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:37:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1004539819, now seen corresponding path program 1 times [2023-08-25 05:37:53,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:37:53,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775748368] [2023-08-25 05:37:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:37:53,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:37:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:37:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:37:53,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:37:53,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775748368] [2023-08-25 05:37:53,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775748368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:37:53,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:37:53,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:37:53,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967995322] [2023-08-25 05:37:53,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:37:53,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:37:53,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:37:53,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:37:53,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:37:53,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 829 [2023-08-25 05:37:53,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:53,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:37:53,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 829 [2023-08-25 05:37:53,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:37:56,544 INFO L124 PetriNetUnfolderBase]: 24591/41171 cut-off events. [2023-08-25 05:37:56,545 INFO L125 PetriNetUnfolderBase]: For 1559/1765 co-relation queries the response was YES. [2023-08-25 05:37:56,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73810 conditions, 41171 events. 24591/41171 cut-off events. For 1559/1765 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 325885 event pairs, 7499 based on Foata normal form. 1/33497 useless extension candidates. Maximal degree in co-relation 73806. Up to 12273 conditions per place. [2023-08-25 05:37:56,715 INFO L140 encePairwiseOnDemand]: 822/829 looper letters, 111 selfloop transitions, 8 changer transitions 1/170 dead transitions. [2023-08-25 05:37:56,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 170 transitions, 633 flow [2023-08-25 05:37:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:37:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:37:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1453 transitions. [2023-08-25 05:37:56,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4381785283474065 [2023-08-25 05:37:56,718 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1453 transitions. [2023-08-25 05:37:56,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1453 transitions. [2023-08-25 05:37:56,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:37:56,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1453 transitions. [2023-08-25 05:37:56,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 363.25) internal successors, (1453), 4 states have internal predecessors, (1453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:56,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 829.0) internal successors, (4145), 5 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:56,725 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 829.0) internal successors, (4145), 5 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:56,725 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 215 flow. Second operand 4 states and 1453 transitions. [2023-08-25 05:37:56,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 170 transitions, 633 flow [2023-08-25 05:37:56,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 170 transitions, 626 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:37:56,729 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 261 flow [2023-08-25 05:37:56,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2023-08-25 05:37:56,730 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -81 predicate places. [2023-08-25 05:37:56,730 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 261 flow [2023-08-25 05:37:56,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:56,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:37:56,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:56,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:37:56,731 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:37:56,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:37:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1342359644, now seen corresponding path program 1 times [2023-08-25 05:37:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:37:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528670920] [2023-08-25 05:37:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:37:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:37:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:37:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:37:56,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:37:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528670920] [2023-08-25 05:37:56,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528670920] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:37:56,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:37:56,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:37:56,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784772418] [2023-08-25 05:37:56,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:37:56,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:37:56,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:37:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:37:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:37:56,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 829 [2023-08-25 05:37:56,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:56,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:37:56,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 829 [2023-08-25 05:37:56,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:01,780 INFO L124 PetriNetUnfolderBase]: 40211/63908 cut-off events. [2023-08-25 05:38:01,780 INFO L125 PetriNetUnfolderBase]: For 11514/14002 co-relation queries the response was YES. [2023-08-25 05:38:01,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130264 conditions, 63908 events. 40211/63908 cut-off events. For 11514/14002 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 496943 event pairs, 12935 based on Foata normal form. 8/50914 useless extension candidates. Maximal degree in co-relation 130258. Up to 23107 conditions per place. [2023-08-25 05:38:02,072 INFO L140 encePairwiseOnDemand]: 822/829 looper letters, 113 selfloop transitions, 11 changer transitions 1/175 dead transitions. [2023-08-25 05:38:02,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 175 transitions, 707 flow [2023-08-25 05:38:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:38:02,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:38:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1451 transitions. [2023-08-25 05:38:02,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43757539203860074 [2023-08-25 05:38:02,076 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1451 transitions. [2023-08-25 05:38:02,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1451 transitions. [2023-08-25 05:38:02,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:02,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1451 transitions. [2023-08-25 05:38:02,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 362.75) internal successors, (1451), 4 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:02,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 829.0) internal successors, (4145), 5 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:02,083 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 829.0) internal successors, (4145), 5 states have internal predecessors, (4145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:02,083 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 261 flow. Second operand 4 states and 1451 transitions. [2023-08-25 05:38:02,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 175 transitions, 707 flow [2023-08-25 05:38:02,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 175 transitions, 707 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:38:02,091 INFO L231 Difference]: Finished difference. Result has 106 places, 109 transitions, 340 flow [2023-08-25 05:38:02,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=106, PETRI_TRANSITIONS=109} [2023-08-25 05:38:02,092 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -76 predicate places. [2023-08-25 05:38:02,092 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 109 transitions, 340 flow [2023-08-25 05:38:02,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 341.0) internal successors, (1364), 4 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:02,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:02,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:02,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:38:02,093 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:02,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1993291623, now seen corresponding path program 1 times [2023-08-25 05:38:02,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:02,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105035497] [2023-08-25 05:38:02,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:02,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:02,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:02,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105035497] [2023-08-25 05:38:02,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105035497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:38:02,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:38:02,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:38:02,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555152858] [2023-08-25 05:38:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:38:02,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:38:02,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:02,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:38:02,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:38:02,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:02,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 109 transitions, 340 flow. Second operand has 5 states, 5 states have (on average 320.8) internal successors, (1604), 5 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:02,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:02,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:02,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:08,843 INFO L124 PetriNetUnfolderBase]: 50674/87318 cut-off events. [2023-08-25 05:38:08,843 INFO L125 PetriNetUnfolderBase]: For 40023/54235 co-relation queries the response was YES. [2023-08-25 05:38:09,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185522 conditions, 87318 events. 50674/87318 cut-off events. For 40023/54235 co-relation queries the response was YES. Maximal size of possible extension queue 2441. Compared 789237 event pairs, 15669 based on Foata normal form. 26/72953 useless extension candidates. Maximal degree in co-relation 185513. Up to 28288 conditions per place. [2023-08-25 05:38:09,321 INFO L140 encePairwiseOnDemand]: 821/829 looper letters, 159 selfloop transitions, 7 changer transitions 0/216 dead transitions. [2023-08-25 05:38:09,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 216 transitions, 1083 flow [2023-08-25 05:38:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:38:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:38:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2020 transitions. [2023-08-25 05:38:09,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40611178126256536 [2023-08-25 05:38:09,326 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2020 transitions. [2023-08-25 05:38:09,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2020 transitions. [2023-08-25 05:38:09,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:09,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2020 transitions. [2023-08-25 05:38:09,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 336.6666666666667) internal successors, (2020), 6 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:09,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:09,335 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:09,336 INFO L175 Difference]: Start difference. First operand has 106 places, 109 transitions, 340 flow. Second operand 6 states and 2020 transitions. [2023-08-25 05:38:09,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 216 transitions, 1083 flow [2023-08-25 05:38:09,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 216 transitions, 1071 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 05:38:09,380 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 408 flow [2023-08-25 05:38:09,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=116, PETRI_TRANSITIONS=115} [2023-08-25 05:38:09,381 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -66 predicate places. [2023-08-25 05:38:09,381 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 408 flow [2023-08-25 05:38:09,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 320.8) internal successors, (1604), 5 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:09,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:09,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:09,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:38:09,382 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:09,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:09,382 INFO L85 PathProgramCache]: Analyzing trace with hash -298427007, now seen corresponding path program 1 times [2023-08-25 05:38:09,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:09,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475501675] [2023-08-25 05:38:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:09,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:09,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475501675] [2023-08-25 05:38:09,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475501675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:38:09,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:38:09,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:38:09,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802535758] [2023-08-25 05:38:09,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:38:09,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:38:09,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:09,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:38:09,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:38:09,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:09,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 115 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 320.8) internal successors, (1604), 5 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:09,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:09,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:09,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:15,536 INFO L124 PetriNetUnfolderBase]: 40749/74797 cut-off events. [2023-08-25 05:38:15,536 INFO L125 PetriNetUnfolderBase]: For 51906/54092 co-relation queries the response was YES. [2023-08-25 05:38:15,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168907 conditions, 74797 events. 40749/74797 cut-off events. For 51906/54092 co-relation queries the response was YES. Maximal size of possible extension queue 2249. Compared 713539 event pairs, 12988 based on Foata normal form. 300/67991 useless extension candidates. Maximal degree in co-relation 168893. Up to 26698 conditions per place. [2023-08-25 05:38:15,973 INFO L140 encePairwiseOnDemand]: 821/829 looper letters, 100 selfloop transitions, 4 changer transitions 51/205 dead transitions. [2023-08-25 05:38:15,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 205 transitions, 1057 flow [2023-08-25 05:38:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:38:15,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:38:15,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2011 transitions. [2023-08-25 05:38:15,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40430237233614796 [2023-08-25 05:38:15,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2011 transitions. [2023-08-25 05:38:15,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2011 transitions. [2023-08-25 05:38:15,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:15,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2011 transitions. [2023-08-25 05:38:15,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.1666666666667) internal successors, (2011), 6 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:15,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:15,985 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:15,985 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 408 flow. Second operand 6 states and 2011 transitions. [2023-08-25 05:38:15,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 205 transitions, 1057 flow [2023-08-25 05:38:15,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 205 transitions, 1055 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 05:38:16,001 INFO L231 Difference]: Finished difference. Result has 125 places, 114 transitions, 410 flow [2023-08-25 05:38:16,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=125, PETRI_TRANSITIONS=114} [2023-08-25 05:38:16,001 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -57 predicate places. [2023-08-25 05:38:16,001 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 114 transitions, 410 flow [2023-08-25 05:38:16,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 320.8) internal successors, (1604), 5 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:16,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:16,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:16,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:38:16,002 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:16,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:16,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1216698192, now seen corresponding path program 1 times [2023-08-25 05:38:16,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:16,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35629601] [2023-08-25 05:38:16,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:16,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:16,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:16,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:16,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35629601] [2023-08-25 05:38:16,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35629601] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:16,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123578228] [2023-08-25 05:38:16,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:16,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:16,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:16,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:38:16,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:38:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:16,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 05:38:16,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:16,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123578228] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:38:16,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:38:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-08-25 05:38:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260074897] [2023-08-25 05:38:16,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:38:16,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 05:38:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:16,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 05:38:16,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-08-25 05:38:16,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:16,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 114 transitions, 410 flow. Second operand has 11 states, 11 states have (on average 318.27272727272725) internal successors, (3501), 11 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:16,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:16,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:16,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:24,065 INFO L124 PetriNetUnfolderBase]: 48484/87497 cut-off events. [2023-08-25 05:38:24,066 INFO L125 PetriNetUnfolderBase]: For 90181/93292 co-relation queries the response was YES. [2023-08-25 05:38:24,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219457 conditions, 87497 events. 48484/87497 cut-off events. For 90181/93292 co-relation queries the response was YES. Maximal size of possible extension queue 2488. Compared 838162 event pairs, 13971 based on Foata normal form. 1154/83887 useless extension candidates. Maximal degree in co-relation 219439. Up to 27338 conditions per place. [2023-08-25 05:38:24,908 INFO L140 encePairwiseOnDemand]: 821/829 looper letters, 169 selfloop transitions, 8 changer transitions 0/227 dead transitions. [2023-08-25 05:38:24,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 227 transitions, 1267 flow [2023-08-25 05:38:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:38:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:38:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2333 transitions. [2023-08-25 05:38:24,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4020334309839738 [2023-08-25 05:38:24,912 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2333 transitions. [2023-08-25 05:38:24,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2333 transitions. [2023-08-25 05:38:24,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:24,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2333 transitions. [2023-08-25 05:38:24,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 333.2857142857143) internal successors, (2333), 7 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:24,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 829.0) internal successors, (6632), 8 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:24,924 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 829.0) internal successors, (6632), 8 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:24,924 INFO L175 Difference]: Start difference. First operand has 125 places, 114 transitions, 410 flow. Second operand 7 states and 2333 transitions. [2023-08-25 05:38:24,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 227 transitions, 1267 flow [2023-08-25 05:38:24,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 227 transitions, 1225 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-08-25 05:38:24,951 INFO L231 Difference]: Finished difference. Result has 126 places, 120 transitions, 472 flow [2023-08-25 05:38:24,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=472, PETRI_PLACES=126, PETRI_TRANSITIONS=120} [2023-08-25 05:38:24,951 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -56 predicate places. [2023-08-25 05:38:24,951 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 120 transitions, 472 flow [2023-08-25 05:38:24,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 318.27272727272725) internal successors, (3501), 11 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:24,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:24,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:24,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 05:38:25,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-25 05:38:25,159 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:25,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash -697532339, now seen corresponding path program 1 times [2023-08-25 05:38:25,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:25,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251985352] [2023-08-25 05:38:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:25,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:25,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251985352] [2023-08-25 05:38:25,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251985352] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560540081] [2023-08-25 05:38:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:25,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:25,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:25,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:38:25,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 05:38:25,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:25,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-25 05:38:25,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:25,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:25,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560540081] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:38:25,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:38:25,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-25 05:38:25,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175600407] [2023-08-25 05:38:25,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:38:25,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 05:38:25,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:25,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 05:38:25,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-25 05:38:25,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:25,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 120 transitions, 472 flow. Second operand has 12 states, 12 states have (on average 318.4166666666667) internal successors, (3821), 12 states have internal predecessors, (3821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:25,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:25,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:25,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:31,537 INFO L124 PetriNetUnfolderBase]: 40749/66466 cut-off events. [2023-08-25 05:38:31,537 INFO L125 PetriNetUnfolderBase]: For 73392/76674 co-relation queries the response was YES. [2023-08-25 05:38:31,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180309 conditions, 66466 events. 40749/66466 cut-off events. For 73392/76674 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 538080 event pairs, 12752 based on Foata normal form. 768/62776 useless extension candidates. Maximal degree in co-relation 180291. Up to 26698 conditions per place. [2023-08-25 05:38:32,035 INFO L140 encePairwiseOnDemand]: 821/829 looper letters, 100 selfloop transitions, 5 changer transitions 57/212 dead transitions. [2023-08-25 05:38:32,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 212 transitions, 1169 flow [2023-08-25 05:38:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 05:38:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 05:38:32,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2324 transitions. [2023-08-25 05:38:32,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40048250904704463 [2023-08-25 05:38:32,040 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2324 transitions. [2023-08-25 05:38:32,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2324 transitions. [2023-08-25 05:38:32,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:32,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2324 transitions. [2023-08-25 05:38:32,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:32,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 829.0) internal successors, (6632), 8 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:32,047 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 829.0) internal successors, (6632), 8 states have internal predecessors, (6632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:32,047 INFO L175 Difference]: Start difference. First operand has 126 places, 120 transitions, 472 flow. Second operand 7 states and 2324 transitions. [2023-08-25 05:38:32,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 212 transitions, 1169 flow [2023-08-25 05:38:32,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 212 transitions, 1161 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 05:38:32,070 INFO L231 Difference]: Finished difference. Result has 133 places, 115 transitions, 436 flow [2023-08-25 05:38:32,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=436, PETRI_PLACES=133, PETRI_TRANSITIONS=115} [2023-08-25 05:38:32,071 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -49 predicate places. [2023-08-25 05:38:32,071 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 115 transitions, 436 flow [2023-08-25 05:38:32,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 318.4166666666667) internal successors, (3821), 12 states have internal predecessors, (3821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:32,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:32,072 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:32,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 05:38:32,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 05:38:32,278 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:32,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:32,278 INFO L85 PathProgramCache]: Analyzing trace with hash 501527096, now seen corresponding path program 2 times [2023-08-25 05:38:32,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:32,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298247037] [2023-08-25 05:38:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:38:32,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298247037] [2023-08-25 05:38:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298247037] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043867084] [2023-08-25 05:38:32,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:38:32,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:32,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:32,810 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:38:32,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 05:38:34,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:38:34,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:38:34,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 11 conjunts are in the unsatisfiable core [2023-08-25 05:38:34,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:34,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:38:34,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:38:34,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043867084] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:34,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 05:38:34,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2023-08-25 05:38:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400988614] [2023-08-25 05:38:34,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:38:34,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:38:34,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:34,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:38:34,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-25 05:38:34,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:34,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 115 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:34,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:34,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:34,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:38,425 INFO L124 PetriNetUnfolderBase]: 28494/45413 cut-off events. [2023-08-25 05:38:38,425 INFO L125 PetriNetUnfolderBase]: For 69180/86322 co-relation queries the response was YES. [2023-08-25 05:38:38,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132912 conditions, 45413 events. 28494/45413 cut-off events. For 69180/86322 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 334701 event pairs, 13380 based on Foata normal form. 1162/43878 useless extension candidates. Maximal degree in co-relation 132891. Up to 32677 conditions per place. [2023-08-25 05:38:38,978 INFO L140 encePairwiseOnDemand]: 822/829 looper letters, 89 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2023-08-25 05:38:38,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 146 transitions, 765 flow [2023-08-25 05:38:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:38:38,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:38:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1958 transitions. [2023-08-25 05:38:38,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3936469642139123 [2023-08-25 05:38:38,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1958 transitions. [2023-08-25 05:38:38,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1958 transitions. [2023-08-25 05:38:38,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:38,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1958 transitions. [2023-08-25 05:38:38,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:38,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:38,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:38,987 INFO L175 Difference]: Start difference. First operand has 133 places, 115 transitions, 436 flow. Second operand 6 states and 1958 transitions. [2023-08-25 05:38:38,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 146 transitions, 765 flow [2023-08-25 05:38:39,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 146 transitions, 715 flow, removed 15 selfloop flow, removed 9 redundant places. [2023-08-25 05:38:39,010 INFO L231 Difference]: Finished difference. Result has 126 places, 117 transitions, 434 flow [2023-08-25 05:38:39,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=126, PETRI_TRANSITIONS=117} [2023-08-25 05:38:39,010 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -56 predicate places. [2023-08-25 05:38:39,010 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 117 transitions, 434 flow [2023-08-25 05:38:39,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:39,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:39,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:39,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 05:38:39,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:39,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:39,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:39,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1734384263, now seen corresponding path program 2 times [2023-08-25 05:38:39,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:39,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757296065] [2023-08-25 05:38:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:39,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:39,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:39,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757296065] [2023-08-25 05:38:39,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757296065] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:39,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387073375] [2023-08-25 05:38:39,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:38:39,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:39,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:39,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:38:39,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 05:38:40,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:38:40,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:38:40,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 05:38:40,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:40,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387073375] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 05:38:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2023-08-25 05:38:40,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619433418] [2023-08-25 05:38:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:38:40,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:38:40,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:38:40,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-08-25 05:38:40,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 829 [2023-08-25 05:38:40,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:40,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:40,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 829 [2023-08-25 05:38:40,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:43,362 INFO L124 PetriNetUnfolderBase]: 21901/34289 cut-off events. [2023-08-25 05:38:43,362 INFO L125 PetriNetUnfolderBase]: For 40822/42137 co-relation queries the response was YES. [2023-08-25 05:38:43,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100422 conditions, 34289 events. 21901/34289 cut-off events. For 40822/42137 co-relation queries the response was YES. Maximal size of possible extension queue 1031. Compared 237582 event pairs, 9851 based on Foata normal form. 832/33602 useless extension candidates. Maximal degree in co-relation 100405. Up to 25062 conditions per place. [2023-08-25 05:38:43,621 INFO L140 encePairwiseOnDemand]: 822/829 looper letters, 93 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2023-08-25 05:38:43,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 150 transitions, 786 flow [2023-08-25 05:38:43,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:38:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:38:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1958 transitions. [2023-08-25 05:38:43,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3936469642139123 [2023-08-25 05:38:43,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1958 transitions. [2023-08-25 05:38:43,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1958 transitions. [2023-08-25 05:38:43,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:43,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1958 transitions. [2023-08-25 05:38:43,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:43,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:43,630 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 829.0) internal successors, (5803), 7 states have internal predecessors, (5803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:43,630 INFO L175 Difference]: Start difference. First operand has 126 places, 117 transitions, 434 flow. Second operand 6 states and 1958 transitions. [2023-08-25 05:38:43,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 150 transitions, 786 flow [2023-08-25 05:38:43,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 150 transitions, 757 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-25 05:38:43,649 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 450 flow [2023-08-25 05:38:43,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-25 05:38:43,650 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, -54 predicate places. [2023-08-25 05:38:43,650 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 450 flow [2023-08-25 05:38:43,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.0) internal successors, (1920), 6 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:43,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:43,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:43,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 05:38:43,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 05:38:43,858 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:38:43,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:43,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1911484303, now seen corresponding path program 1 times [2023-08-25 05:38:43,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:43,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440528540] [2023-08-25 05:38:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:43,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:38:45,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:45,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440528540] [2023-08-25 05:38:45,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440528540] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:45,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743159927] [2023-08-25 05:38:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:45,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:45,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:45,534 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:38:45,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 05:38:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:45,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 60 conjunts are in the unsatisfiable core [2023-08-25 05:38:45,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:45,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:38:45,969 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 05:38:46,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:38:46,270 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 05:38:46,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:38:46,338 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 05:38:46,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:38:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:38:46,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:46,526 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1523 (Array Int Int))) (= c_~s_6~0 (+ (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1523) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) is different from false [2023-08-25 05:38:46,566 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1523 (Array Int Int)) (v_ArrVal_1522 (Array Int Int))) (= c_~s_6~0 (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_1522) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1523) c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) is different from false [2023-08-25 05:38:47,400 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork3_~#t2~0.base_46| Int)) (or (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_49| Int)) (or (forall ((v_ArrVal_1523 (Array Int Int)) (v_ArrVal_1522 (Array Int Int))) (= c_~s_6~0 (select (select (store (store |c_#memory_int| |v_thread1Thread1of1ForFork3_~#t2~0.base_46| v_ArrVal_1522) |v_thread1Thread1of1ForFork3_~#t3~0.base_49| v_ArrVal_1523) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_49| |c_#StackHeapBarrier|))) (<= |v_thread1Thread1of1ForFork3_~#t2~0.base_46| |c_#StackHeapBarrier|))) is different from false [2023-08-25 05:38:47,568 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_49| Int) (v_ArrVal_1523 (Array Int Int)) (v_ArrVal_1522 (Array Int Int)) (v_ArrVal_1521 (Array Int Int)) (|v_thread1Thread1of1ForFork3_~#t2~0.base_46| Int)) (or (= (select (select (store (store (store |c_#memory_int| |c_thread4Thread1of1ForFork5_~#t6~0.base| v_ArrVal_1521) |v_thread1Thread1of1ForFork3_~#t2~0.base_46| v_ArrVal_1522) |v_thread1Thread1of1ForFork3_~#t3~0.base_49| v_ArrVal_1523) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0)) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_49| |c_#StackHeapBarrier|) (<= |v_thread1Thread1of1ForFork3_~#t2~0.base_46| |c_#StackHeapBarrier|))) is different from false [2023-08-25 05:38:47,602 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:38:47,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 442 treesize of output 294 [2023-08-25 05:38:47,611 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 130 [2023-08-25 05:38:47,616 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 114 [2023-08-25 05:38:47,622 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2023-08-25 05:38:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 1 not checked. [2023-08-25 05:38:47,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743159927] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:38:47,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:38:47,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 35 [2023-08-25 05:38:47,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410885410] [2023-08-25 05:38:47,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:38:47,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-08-25 05:38:47,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:47,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-08-25 05:38:47,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=888, Unknown=35, NotChecked=260, Total=1332 [2023-08-25 05:38:47,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 829 [2023-08-25 05:38:47,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 450 flow. Second operand has 37 states, 37 states have (on average 268.5135135135135) internal successors, (9935), 37 states have internal predecessors, (9935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:47,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:47,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 829 [2023-08-25 05:38:47,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:39:29,183 INFO L124 PetriNetUnfolderBase]: 302233/385666 cut-off events. [2023-08-25 05:39:29,183 INFO L125 PetriNetUnfolderBase]: For 481723/512098 co-relation queries the response was YES. [2023-08-25 05:39:30,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227388 conditions, 385666 events. 302233/385666 cut-off events. For 481723/512098 co-relation queries the response was YES. Maximal size of possible extension queue 4922. Compared 2216847 event pairs, 21412 based on Foata normal form. 954/377039 useless extension candidates. Maximal degree in co-relation 1227370. Up to 144045 conditions per place. [2023-08-25 05:39:32,532 INFO L140 encePairwiseOnDemand]: 810/829 looper letters, 1026 selfloop transitions, 127 changer transitions 27/1204 dead transitions. [2023-08-25 05:39:32,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 1204 transitions, 6599 flow [2023-08-25 05:39:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-08-25 05:39:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-08-25 05:39:32,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 10877 transitions. [2023-08-25 05:39:32,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35461154761516644 [2023-08-25 05:39:32,543 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 10877 transitions. [2023-08-25 05:39:32,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 10877 transitions. [2023-08-25 05:39:32,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:39:32,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 10877 transitions. [2023-08-25 05:39:32,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 293.97297297297297) internal successors, (10877), 37 states have internal predecessors, (10877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:32,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 829.0) internal successors, (31502), 38 states have internal predecessors, (31502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:32,579 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 829.0) internal successors, (31502), 38 states have internal predecessors, (31502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:32,579 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 450 flow. Second operand 37 states and 10877 transitions. [2023-08-25 05:39:32,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 1204 transitions, 6599 flow [2023-08-25 05:39:33,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 1204 transitions, 6485 flow, removed 32 selfloop flow, removed 4 redundant places. [2023-08-25 05:39:33,880 INFO L231 Difference]: Finished difference. Result has 186 places, 248 transitions, 1629 flow [2023-08-25 05:39:33,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=829, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1629, PETRI_PLACES=186, PETRI_TRANSITIONS=248} [2023-08-25 05:39:33,881 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 4 predicate places. [2023-08-25 05:39:33,881 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 248 transitions, 1629 flow [2023-08-25 05:39:33,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 268.5135135135135) internal successors, (9935), 37 states have internal predecessors, (9935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:33,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:39:33,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:33,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 05:39:34,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 05:39:34,090 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 144 more)] === [2023-08-25 05:39:34,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:39:34,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1676311339, now seen corresponding path program 2 times [2023-08-25 05:39:34,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:39:34,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285187689] [2023-08-25 05:39:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:39:34,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:39:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:39:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:39:35,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:39:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285187689] [2023-08-25 05:39:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285187689] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:39:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450568920] [2023-08-25 05:39:35,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:39:35,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:39:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:39:35,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:39:35,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 05:39:36,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:39:36,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:39:36,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 79 conjunts are in the unsatisfiable core [2023-08-25 05:39:36,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:39:36,404 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 05:39:36,428 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:39:36,455 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:39:36,535 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:39:36,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:39:36,662 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:39:36,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:39:36,917 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:39:36,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:39:36,978 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:39:37,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-08-25 05:39:37,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:39:37,059 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:39:37,251 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1741 (Array Int Int)) (v_ArrVal_1740 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork5_~#t5~0.base| v_ArrVal_1740) |c_thread4Thread1of1ForFork5_~#t6~0.base| v_ArrVal_1741) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_2~0)) is different from false [2023-08-25 05:39:37,265 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_thread4Thread1of1ForFork5_~#t6~0.base_45| Int)) (or (forall ((v_ArrVal_1741 (Array Int Int)) (v_ArrVal_1740 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork5_~#t5~0.base| v_ArrVal_1740) |v_thread4Thread1of1ForFork5_~#t6~0.base_45| v_ArrVal_1741) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) c_~s_2~0)) (<= |v_thread4Thread1of1ForFork5_~#t6~0.base_45| |c_#StackHeapBarrier|))) is different from false [2023-08-25 05:39:42,920 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1741 (Array Int Int)) (v_ArrVal_1740 (Array Int Int)) (|v_thread4Thread1of1ForFork5_~#t6~0.base_45| Int) (v_ArrVal_1739 (Array Int Int)) (v_ArrVal_1738 (Array Int Int)) (|v_thread4Thread1of1ForFork5_~#t5~0.base_45| Int)) (or (<= |v_thread4Thread1of1ForFork5_~#t5~0.base_45| |c_#StackHeapBarrier|) (let ((.cse0 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_1738))) (= (select (select (store (store (store .cse0 |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_1739) |v_thread4Thread1of1ForFork5_~#t5~0.base_45| v_ArrVal_1740) |v_thread4Thread1of1ForFork5_~#t6~0.base_45| v_ArrVal_1741) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ (select (select .cse0 c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) c_~s_2~0))) (<= |v_thread4Thread1of1ForFork5_~#t6~0.base_45| |c_#StackHeapBarrier|))) is different from false [2023-08-25 05:40:08,576 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:40:08,577 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 55 [2023-08-25 05:40:08,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 680182 treesize of output 653302 [2023-08-25 05:40:08,745 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1178 treesize of output 1050 [2023-08-25 05:40:08,771 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1050 treesize of output 986 [2023-08-25 05:40:08,795 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 986 treesize of output 930 [2023-08-25 05:40:08,827 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 522 treesize of output 490 [2023-08-25 05:40:08,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 898 treesize of output 786 [2023-08-25 05:40:08,873 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 786 treesize of output 758 [2023-08-25 05:40:11,245 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-25 05:40:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-08-25 05:40:11,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450568920] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:40:11,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:40:11,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 19] total 49 [2023-08-25 05:40:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103239499] [2023-08-25 05:40:11,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:40:11,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-08-25 05:40:11,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:40:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-08-25 05:40:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1907, Unknown=101, NotChecked=282, Total=2550 [2023-08-25 05:40:11,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 829 [2023-08-25 05:40:11,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 248 transitions, 1629 flow. Second operand has 51 states, 51 states have (on average 234.66666666666666) internal successors, (11968), 51 states have internal predecessors, (11968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:11,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:40:11,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 829 [2023-08-25 05:40:11,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand