/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/popl20-more-max-array.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 06:32:27,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 06:32:27,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 06:32:27,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 06:32:27,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 06:32:27,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 06:32:27,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 06:32:27,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 06:32:27,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 06:32:27,245 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 06:32:27,246 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 06:32:27,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 06:32:27,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 06:32:27,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 06:32:27,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 06:32:27,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 06:32:27,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 06:32:27,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 06:32:27,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 06:32:27,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 06:32:27,249 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 06:32:27,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 06:32:27,250 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 06:32:27,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 06:32:27,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 06:32:27,251 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 06:32:27,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 06:32:27,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:32:27,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 06:32:27,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 06:32:27,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 06:32:27,253 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 06:32:27,253 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 06:32:27,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 06:32:27,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 06:32:27,254 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 06:32:27,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 06:32:27,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 06:32:27,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 06:32:27,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 06:32:27,614 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 06:32:27,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-max-array.wvr.c [2023-08-25 06:32:28,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 06:32:29,089 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 06:32:29,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-max-array.wvr.c [2023-08-25 06:32:29,097 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5c0a1b0/d958994cf51f44c0a136fe518fef4b66/FLAGccf522ec0 [2023-08-25 06:32:29,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c5c0a1b0/d958994cf51f44c0a136fe518fef4b66 [2023-08-25 06:32:29,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 06:32:29,119 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 06:32:29,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 06:32:29,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 06:32:29,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 06:32:29,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd59846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29, skipping insertion in model container [2023-08-25 06:32:29,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,148 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 06:32:29,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:32:29,374 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 06:32:29,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 06:32:29,426 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:32:29,426 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 06:32:29,432 INFO L206 MainTranslator]: Completed translation [2023-08-25 06:32:29,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29 WrapperNode [2023-08-25 06:32:29,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 06:32:29,435 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 06:32:29,435 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 06:32:29,435 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 06:32:29,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,485 INFO L138 Inliner]: procedures = 24, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-08-25 06:32:29,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 06:32:29,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 06:32:29,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 06:32:29,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 06:32:29,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,499 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 06:32:29,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 06:32:29,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 06:32:29,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 06:32:29,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (1/1) ... [2023-08-25 06:32:29,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 06:32:29,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:29,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 06:32:29,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 06:32:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 06:32:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 06:32:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 06:32:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 06:32:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 06:32:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 06:32:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 06:32:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 06:32:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 06:32:29,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 06:32:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 06:32:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 06:32:29,618 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 06:32:29,723 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 06:32:29,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 06:32:30,112 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 06:32:30,307 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 06:32:30,307 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-25 06:32:30,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:32:30 BoogieIcfgContainer [2023-08-25 06:32:30,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 06:32:30,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 06:32:30,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 06:32:30,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 06:32:30,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:32:29" (1/3) ... [2023-08-25 06:32:30,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35648962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:32:30, skipping insertion in model container [2023-08-25 06:32:30,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:32:29" (2/3) ... [2023-08-25 06:32:30,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35648962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:32:30, skipping insertion in model container [2023-08-25 06:32:30,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:32:30" (3/3) ... [2023-08-25 06:32:30,319 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-max-array.wvr.c [2023-08-25 06:32:30,336 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 06:32:30,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-25 06:32:30,337 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 06:32:30,452 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 06:32:30,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 243 transitions, 510 flow [2023-08-25 06:32:30,583 INFO L124 PetriNetUnfolderBase]: 13/240 cut-off events. [2023-08-25 06:32:30,584 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 06:32:30,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 240 events. 13/240 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 166. Up to 2 conditions per place. [2023-08-25 06:32:30,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 243 transitions, 510 flow [2023-08-25 06:32:30,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 226 places, 229 transitions, 476 flow [2023-08-25 06:32:30,602 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 06:32:30,613 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 229 transitions, 476 flow [2023-08-25 06:32:30,617 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 229 transitions, 476 flow [2023-08-25 06:32:30,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 229 transitions, 476 flow [2023-08-25 06:32:30,673 INFO L124 PetriNetUnfolderBase]: 13/229 cut-off events. [2023-08-25 06:32:30,674 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 06:32:30,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 229 events. 13/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 291 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 166. Up to 2 conditions per place. [2023-08-25 06:32:30,680 INFO L119 LiptonReduction]: Number of co-enabled transitions 5682 [2023-08-25 06:32:39,945 INFO L134 LiptonReduction]: Checked pairs total: 36820 [2023-08-25 06:32:39,945 INFO L136 LiptonReduction]: Total number of compositions: 223 [2023-08-25 06:32:39,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 06:32:39,974 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;@39236d4d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 06:32:39,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-08-25 06:32:39,976 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 06:32:39,976 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 06:32:39,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 06:32:39,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:39,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 06:32:39,977 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:39,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1068, now seen corresponding path program 1 times [2023-08-25 06:32:39,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:39,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268729871] [2023-08-25 06:32:39,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:39,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:40,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268729871] [2023-08-25 06:32:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268729871] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 06:32:40,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438420351] [2023-08-25 06:32:40,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:40,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 06:32:40,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:40,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 06:32:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 06:32:40,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 466 [2023-08-25 06:32:40,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 180 flow. Second operand has 2 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:40,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 466 [2023-08-25 06:32:40,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:40,297 INFO L124 PetriNetUnfolderBase]: 333/803 cut-off events. [2023-08-25 06:32:40,298 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-08-25 06:32:40,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1316 conditions, 803 events. 333/803 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4833 event pairs, 176 based on Foata normal form. 154/785 useless extension candidates. Maximal degree in co-relation 1080. Up to 462 conditions per place. [2023-08-25 06:32:40,308 INFO L140 encePairwiseOnDemand]: 435/466 looper letters, 23 selfloop transitions, 0 changer transitions 0/50 dead transitions. [2023-08-25 06:32:40,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 164 flow [2023-08-25 06:32:40,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 06:32:40,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 06:32:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 468 transitions. [2023-08-25 06:32:40,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5021459227467812 [2023-08-25 06:32:40,327 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 468 transitions. [2023-08-25 06:32:40,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 468 transitions. [2023-08-25 06:32:40,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:40,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 468 transitions. [2023-08-25 06:32:40,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,343 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,344 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 180 flow. Second operand 2 states and 468 transitions. [2023-08-25 06:32:40,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 164 flow [2023-08-25 06:32:40,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 152 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 06:32:40,350 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 106 flow [2023-08-25 06:32:40,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=106, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2023-08-25 06:32:40,354 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -33 predicate places. [2023-08-25 06:32:40,355 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 106 flow [2023-08-25 06:32:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:40,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 06:32:40,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 06:32:40,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:40,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:40,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1760838084, now seen corresponding path program 1 times [2023-08-25 06:32:40,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:40,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293384711] [2023-08-25 06:32:40,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:40,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:40,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:40,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293384711] [2023-08-25 06:32:40,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293384711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:40,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:40,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 06:32:40,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346137151] [2023-08-25 06:32:40,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:40,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:32:40,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:32:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:32:40,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 466 [2023-08-25 06:32:40,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:40,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 466 [2023-08-25 06:32:40,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:40,656 INFO L124 PetriNetUnfolderBase]: 579/1105 cut-off events. [2023-08-25 06:32:40,657 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2023-08-25 06:32:40,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1939 conditions, 1105 events. 579/1105 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5950 event pairs, 364 based on Foata normal form. 0/925 useless extension candidates. Maximal degree in co-relation 1936. Up to 810 conditions per place. [2023-08-25 06:32:40,664 INFO L140 encePairwiseOnDemand]: 463/466 looper letters, 25 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-08-25 06:32:40,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 154 flow [2023-08-25 06:32:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:32:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:32:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2023-08-25 06:32:40,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43204577968526464 [2023-08-25 06:32:40,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:40,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,673 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 106 flow. Second operand 3 states and 604 transitions. [2023-08-25 06:32:40,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 154 flow [2023-08-25 06:32:40,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 48 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 06:32:40,675 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 104 flow [2023-08-25 06:32:40,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-08-25 06:32:40,676 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -33 predicate places. [2023-08-25 06:32:40,676 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 104 flow [2023-08-25 06:32:40,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:40,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:40,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 06:32:40,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:40,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:40,678 INFO L85 PathProgramCache]: Analyzing trace with hash 156176085, now seen corresponding path program 1 times [2023-08-25 06:32:40,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819982861] [2023-08-25 06:32:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:40,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819982861] [2023-08-25 06:32:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819982861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:40,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:40,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 06:32:40,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701771405] [2023-08-25 06:32:40,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:40,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:32:40,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:40,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:32:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:32:40,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 466 [2023-08-25 06:32:40,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:40,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 466 [2023-08-25 06:32:40,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:40,941 INFO L124 PetriNetUnfolderBase]: 622/1180 cut-off events. [2023-08-25 06:32:40,941 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-25 06:32:40,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1180 events. 622/1180 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6202 event pairs, 418 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 2084. Up to 876 conditions per place. [2023-08-25 06:32:40,949 INFO L140 encePairwiseOnDemand]: 463/466 looper letters, 25 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2023-08-25 06:32:40,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 46 transitions, 152 flow [2023-08-25 06:32:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:32:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:32:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2023-08-25 06:32:40,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43204577968526464 [2023-08-25 06:32:40,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:40,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2023-08-25 06:32:40,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,958 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 104 flow. Second operand 3 states and 604 transitions. [2023-08-25 06:32:40,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 46 transitions, 152 flow [2023-08-25 06:32:40,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:32:40,959 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 101 flow [2023-08-25 06:32:40,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-25 06:32:40,960 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -34 predicate places. [2023-08-25 06:32:40,960 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 101 flow [2023-08-25 06:32:40,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:40,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:40,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:40,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 06:32:40,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:40,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:40,962 INFO L85 PathProgramCache]: Analyzing trace with hash 746571131, now seen corresponding path program 1 times [2023-08-25 06:32:40,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:40,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718068218] [2023-08-25 06:32:40,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:40,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:41,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718068218] [2023-08-25 06:32:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718068218] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:41,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 06:32:41,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148549499] [2023-08-25 06:32:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:41,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 06:32:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:41,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 06:32:41,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 06:32:41,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 466 [2023-08-25 06:32:41,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:41,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 466 [2023-08-25 06:32:41,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:41,219 INFO L124 PetriNetUnfolderBase]: 333/763 cut-off events. [2023-08-25 06:32:41,219 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-08-25 06:32:41,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 763 events. 333/763 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4391 event pairs, 176 based on Foata normal form. 1/609 useless extension candidates. Maximal degree in co-relation 1244. Up to 462 conditions per place. [2023-08-25 06:32:41,224 INFO L140 encePairwiseOnDemand]: 463/466 looper letters, 22 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2023-08-25 06:32:41,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 47 transitions, 151 flow [2023-08-25 06:32:41,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 06:32:41,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 06:32:41,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-08-25 06:32:41,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4062947067238913 [2023-08-25 06:32:41,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-08-25 06:32:41,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-08-25 06:32:41,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:41,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-08-25 06:32:41,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 466.0) internal successors, (1864), 4 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,231 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 101 flow. Second operand 3 states and 568 transitions. [2023-08-25 06:32:41,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 47 transitions, 151 flow [2023-08-25 06:32:41,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 47 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 06:32:41,233 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 112 flow [2023-08-25 06:32:41,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2023-08-25 06:32:41,234 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -32 predicate places. [2023-08-25 06:32:41,234 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 112 flow [2023-08-25 06:32:41,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:41,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:41,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 06:32:41,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:41,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1968936470, now seen corresponding path program 1 times [2023-08-25 06:32:41,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53804018] [2023-08-25 06:32:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:41,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:32:41,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:41,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53804018] [2023-08-25 06:32:41,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53804018] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:41,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:41,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:32:41,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217703060] [2023-08-25 06:32:41,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:41,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:32:41,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:41,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:32:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:32:41,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 466 [2023-08-25 06:32:41,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 47 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:41,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:41,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 466 [2023-08-25 06:32:41,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:41,986 INFO L124 PetriNetUnfolderBase]: 969/1363 cut-off events. [2023-08-25 06:32:41,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 06:32:41,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 1363 events. 969/1363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6169 event pairs, 73 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 2689. Up to 584 conditions per place. [2023-08-25 06:32:41,995 INFO L140 encePairwiseOnDemand]: 461/466 looper letters, 66 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2023-08-25 06:32:41,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 314 flow [2023-08-25 06:32:41,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:32:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:32:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1132 transitions. [2023-08-25 06:32:41,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40486409155937053 [2023-08-25 06:32:41,998 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1132 transitions. [2023-08-25 06:32:41,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1132 transitions. [2023-08-25 06:32:41,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:41,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1132 transitions. [2023-08-25 06:32:42,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,007 INFO L175 Difference]: Start difference. First operand has 52 places, 47 transitions, 112 flow. Second operand 6 states and 1132 transitions. [2023-08-25 06:32:42,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 314 flow [2023-08-25 06:32:42,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 310 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 06:32:42,010 INFO L231 Difference]: Finished difference. Result has 55 places, 46 transitions, 114 flow [2023-08-25 06:32:42,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2023-08-25 06:32:42,010 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -29 predicate places. [2023-08-25 06:32:42,011 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 114 flow [2023-08-25 06:32:42,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.16666666666666) internal successors, (1075), 6 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:42,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:42,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 06:32:42,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:42,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:42,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1790805603, now seen corresponding path program 1 times [2023-08-25 06:32:42,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:42,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183200007] [2023-08-25 06:32:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:42,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:42,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:42,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:42,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183200007] [2023-08-25 06:32:42,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183200007] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:42,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169953765] [2023-08-25 06:32:42,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:42,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:42,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:42,109 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 06:32:42,133 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 06:32:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:42,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 06:32:42,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:32:42,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:32:42,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:32:42,379 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 06:32:42,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169953765] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:42,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 06:32:42,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2023-08-25 06:32:42,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87086905] [2023-08-25 06:32:42,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:42,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 06:32:42,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:42,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 06:32:42,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 06:32:42,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 466 [2023-08-25 06:32:42,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 46 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 179.6) internal successors, (898), 5 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:42,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 466 [2023-08-25 06:32:42,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:42,546 INFO L124 PetriNetUnfolderBase]: 376/771 cut-off events. [2023-08-25 06:32:42,547 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-25 06:32:42,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 771 events. 376/771 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4005 event pairs, 134 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 1455. Up to 321 conditions per place. [2023-08-25 06:32:42,552 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 31 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-08-25 06:32:42,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 57 transitions, 212 flow [2023-08-25 06:32:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 06:32:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 06:32:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 922 transitions. [2023-08-25 06:32:42,555 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39570815450643776 [2023-08-25 06:32:42,555 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 922 transitions. [2023-08-25 06:32:42,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 922 transitions. [2023-08-25 06:32:42,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:42,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 922 transitions. [2023-08-25 06:32:42,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 184.4) internal successors, (922), 5 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 466.0) internal successors, (2796), 6 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,564 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 466.0) internal successors, (2796), 6 states have internal predecessors, (2796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,564 INFO L175 Difference]: Start difference. First operand has 55 places, 46 transitions, 114 flow. Second operand 5 states and 922 transitions. [2023-08-25 06:32:42,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 57 transitions, 212 flow [2023-08-25 06:32:42,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 203 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 06:32:42,569 INFO L231 Difference]: Finished difference. Result has 57 places, 47 transitions, 130 flow [2023-08-25 06:32:42,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=57, PETRI_TRANSITIONS=47} [2023-08-25 06:32:42,571 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -27 predicate places. [2023-08-25 06:32:42,571 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 47 transitions, 130 flow [2023-08-25 06:32:42,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 179.6) internal successors, (898), 5 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:42,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:42,572 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] [2023-08-25 06:32:42,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 06:32:42,778 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,SelfDestructingSolverStorable5 [2023-08-25 06:32:42,779 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:42,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1823615022, now seen corresponding path program 1 times [2023-08-25 06:32:42,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:42,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002792639] [2023-08-25 06:32:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:42,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:32:43,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:43,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002792639] [2023-08-25 06:32:43,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002792639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:43,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:43,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:32:43,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84605615] [2023-08-25 06:32:43,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:43,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:32:43,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:32:43,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:32:43,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 466 [2023-08-25 06:32:43,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 47 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:43,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:43,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 466 [2023-08-25 06:32:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:43,507 INFO L124 PetriNetUnfolderBase]: 891/1265 cut-off events. [2023-08-25 06:32:43,508 INFO L125 PetriNetUnfolderBase]: For 490/606 co-relation queries the response was YES. [2023-08-25 06:32:43,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1265 events. 891/1265 cut-off events. For 490/606 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5770 event pairs, 463 based on Foata normal form. 116/1325 useless extension candidates. Maximal degree in co-relation 2913. Up to 1024 conditions per place. [2023-08-25 06:32:43,517 INFO L140 encePairwiseOnDemand]: 461/466 looper letters, 54 selfloop transitions, 4 changer transitions 0/66 dead transitions. [2023-08-25 06:32:43,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 284 flow [2023-08-25 06:32:43,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:32:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:32:43,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1119 transitions. [2023-08-25 06:32:43,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4002145922746781 [2023-08-25 06:32:43,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1119 transitions. [2023-08-25 06:32:43,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1119 transitions. [2023-08-25 06:32:43,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:43,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1119 transitions. [2023-08-25 06:32:43,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.5) internal successors, (1119), 6 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:43,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:43,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:43,531 INFO L175 Difference]: Start difference. First operand has 57 places, 47 transitions, 130 flow. Second operand 6 states and 1119 transitions. [2023-08-25 06:32:43,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 284 flow [2023-08-25 06:32:43,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 66 transitions, 278 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 06:32:43,534 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 130 flow [2023-08-25 06:32:43,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2023-08-25 06:32:43,534 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2023-08-25 06:32:43,535 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 130 flow [2023-08-25 06:32:43,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:43,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:43,535 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] [2023-08-25 06:32:43,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 06:32:43,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:43,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:43,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1405621186, now seen corresponding path program 1 times [2023-08-25 06:32:43,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:43,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844976492] [2023-08-25 06:32:43,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:43,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:32:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844976492] [2023-08-25 06:32:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844976492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:44,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 06:32:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272950676] [2023-08-25 06:32:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:44,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 06:32:44,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:44,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 06:32:44,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 06:32:44,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 466 [2023-08-25 06:32:44,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:44,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 466 [2023-08-25 06:32:44,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:44,333 INFO L124 PetriNetUnfolderBase]: 888/1259 cut-off events. [2023-08-25 06:32:44,333 INFO L125 PetriNetUnfolderBase]: For 370/486 co-relation queries the response was YES. [2023-08-25 06:32:44,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2880 conditions, 1259 events. 888/1259 cut-off events. For 370/486 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5762 event pairs, 525 based on Foata normal form. 116/1322 useless extension candidates. Maximal degree in co-relation 2873. Up to 1180 conditions per place. [2023-08-25 06:32:44,343 INFO L140 encePairwiseOnDemand]: 461/466 looper letters, 45 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2023-08-25 06:32:44,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 250 flow [2023-08-25 06:32:44,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:32:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:32:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1110 transitions. [2023-08-25 06:32:44,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3969957081545064 [2023-08-25 06:32:44,347 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1110 transitions. [2023-08-25 06:32:44,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1110 transitions. [2023-08-25 06:32:44,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:44,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1110 transitions. [2023-08-25 06:32:44,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.0) internal successors, (1110), 6 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,354 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,355 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 130 flow. Second operand 6 states and 1110 transitions. [2023-08-25 06:32:44,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 250 flow [2023-08-25 06:32:44,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 57 transitions, 243 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 06:32:44,359 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 129 flow [2023-08-25 06:32:44,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2023-08-25 06:32:44,361 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2023-08-25 06:32:44,361 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 129 flow [2023-08-25 06:32:44,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:44,362 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] [2023-08-25 06:32:44,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 06:32:44,362 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:44,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1065554045, now seen corresponding path program 1 times [2023-08-25 06:32:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026944677] [2023-08-25 06:32:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:32:44,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:44,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026944677] [2023-08-25 06:32:44,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026944677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 06:32:44,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 06:32:44,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 06:32:44,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448938717] [2023-08-25 06:32:44,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 06:32:44,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 06:32:44,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:44,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 06:32:44,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 06:32:44,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 466 [2023-08-25 06:32:44,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:44,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 466 [2023-08-25 06:32:44,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:44,587 INFO L124 PetriNetUnfolderBase]: 396/869 cut-off events. [2023-08-25 06:32:44,587 INFO L125 PetriNetUnfolderBase]: For 207/263 co-relation queries the response was YES. [2023-08-25 06:32:44,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 869 events. 396/869 cut-off events. For 207/263 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4769 event pairs, 168 based on Foata normal form. 88/907 useless extension candidates. Maximal degree in co-relation 1673. Up to 440 conditions per place. [2023-08-25 06:32:44,593 INFO L140 encePairwiseOnDemand]: 462/466 looper letters, 34 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2023-08-25 06:32:44,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 241 flow [2023-08-25 06:32:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 06:32:44,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 06:32:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 795 transitions. [2023-08-25 06:32:44,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42650214592274677 [2023-08-25 06:32:44,596 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 795 transitions. [2023-08-25 06:32:44,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 795 transitions. [2023-08-25 06:32:44,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:44,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 795 transitions. [2023-08-25 06:32:44,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 198.75) internal successors, (795), 4 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 466.0) internal successors, (2330), 5 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,601 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 466.0) internal successors, (2330), 5 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,601 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 129 flow. Second operand 4 states and 795 transitions. [2023-08-25 06:32:44,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 241 flow [2023-08-25 06:32:44,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 06:32:44,603 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 136 flow [2023-08-25 06:32:44,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2023-08-25 06:32:44,604 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2023-08-25 06:32:44,604 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 136 flow [2023-08-25 06:32:44,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 195.25) internal successors, (781), 4 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:44,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:44,604 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:44,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 06:32:44,605 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:44,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:44,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1699527606, now seen corresponding path program 1 times [2023-08-25 06:32:44,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:44,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803909905] [2023-08-25 06:32:44,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:44,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:45,379 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 06:32:45,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803909905] [2023-08-25 06:32:45,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803909905] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:45,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706400741] [2023-08-25 06:32:45,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:45,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:45,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:45,381 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 06:32:45,392 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 06:32:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:45,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 42 conjunts are in the unsatisfiable core [2023-08-25 06:32:45,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:32:45,626 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 11 treesize of output 7 [2023-08-25 06:32:45,691 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 06:32:45,812 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 06:32:45,920 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 06:32:46,285 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 76 treesize of output 52 [2023-08-25 06:32:46,292 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 0 case distinctions, treesize of input 36 treesize of output 39 [2023-08-25 06:32:46,299 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 0 case distinctions, treesize of input 33 treesize of output 36 [2023-08-25 06:32:46,443 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 06:32:46,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:32:46,502 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:46,503 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-25 06:32:46,541 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:46,542 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:32:46,713 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:46,713 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-25 06:32:46,762 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:46,763 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:32:47,452 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~A~0.offset (* 4 c_~M~0)))) (and (forall ((v_ArrVal_533 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_532) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_533) c_~A~0.base))) (let ((.cse0 (select .cse1 c_~A~0.offset))) (or (<= .cse0 c_~max1~0) (< c_~max2~0 (select .cse1 .cse2)) (= .cse0 c_~max2~0))))) (or (= c_~max1~0 c_~max2~0) (forall ((v_ArrVal_533 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (let ((.cse3 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_532) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_533) c_~A~0.base))) (or (< c_~max1~0 (select .cse3 c_~A~0.offset)) (< c_~max2~0 (select .cse3 .cse2)))))) (forall ((v_ArrVal_533 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_532) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_533) c_~A~0.base))) (let ((.cse5 (select .cse4 .cse2))) (or (< c_~max1~0 (select .cse4 c_~A~0.offset)) (= c_~max1~0 .cse5) (<= .cse5 c_~max2~0))))) (forall ((v_ArrVal_533 (Array Int Int)) (v_ArrVal_532 (Array Int Int))) (let ((.cse8 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_532) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_533) c_~A~0.base))) (let ((.cse7 (select .cse8 .cse2)) (.cse6 (select .cse8 c_~A~0.offset))) (or (= .cse6 .cse7) (<= .cse7 c_~max2~0) (<= .cse6 c_~max1~0))))))) is different from false [2023-08-25 06:32:47,832 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:47,832 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 61 treesize of output 49 [2023-08-25 06:32:47,850 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:47,850 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 2187 treesize of output 2099 [2023-08-25 06:32:47,888 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:47,888 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 119 treesize of output 119 [2023-08-25 06:32:47,906 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:47,907 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 235 treesize of output 211 [2023-08-25 06:32:47,927 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:47,928 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 101 [2023-08-25 06:32:48,331 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:48,331 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 118 treesize of output 82 [2023-08-25 06:32:48,350 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 06:32:48,351 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 3552 treesize of output 3363 [2023-08-25 06:32:48,389 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 06:32:48,390 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 174 [2023-08-25 06:32:48,408 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 06:32:48,408 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 376 treesize of output 312 [2023-08-25 06:32:48,428 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 06:32:48,429 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 139 [2023-08-25 06:32:48,570 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-08-25 06:32:48,570 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 93 treesize of output 1 [2023-08-25 06:32:48,578 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-08-25 06:32:48,578 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 89 treesize of output 1 [2023-08-25 06:32:48,609 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 06:32:48,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706400741] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:32:48,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:32:48,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2023-08-25 06:32:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400469445] [2023-08-25 06:32:48,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:32:48,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 06:32:48,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:48,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 06:32:48,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=363, Unknown=10, NotChecked=40, Total=506 [2023-08-25 06:32:48,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 466 [2023-08-25 06:32:48,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 136 flow. Second operand has 23 states, 23 states have (on average 128.52173913043478) internal successors, (2956), 23 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:48,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:48,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 466 [2023-08-25 06:32:48,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:50,520 INFO L124 PetriNetUnfolderBase]: 2458/4151 cut-off events. [2023-08-25 06:32:50,521 INFO L125 PetriNetUnfolderBase]: For 2557/2557 co-relation queries the response was YES. [2023-08-25 06:32:50,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9829 conditions, 4151 events. 2458/4151 cut-off events. For 2557/2557 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 25929 event pairs, 230 based on Foata normal form. 1/4112 useless extension candidates. Maximal degree in co-relation 9821. Up to 2256 conditions per place. [2023-08-25 06:32:50,552 INFO L140 encePairwiseOnDemand]: 455/466 looper letters, 137 selfloop transitions, 25 changer transitions 1/170 dead transitions. [2023-08-25 06:32:50,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 170 transitions, 816 flow [2023-08-25 06:32:50,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 06:32:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 06:32:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2023-08-25 06:32:50,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30300429184549355 [2023-08-25 06:32:50,558 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1412 transitions. [2023-08-25 06:32:50,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1412 transitions. [2023-08-25 06:32:50,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:50,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1412 transitions. [2023-08-25 06:32:50,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:50,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:50,569 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:50,569 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 136 flow. Second operand 10 states and 1412 transitions. [2023-08-25 06:32:50,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 170 transitions, 816 flow [2023-08-25 06:32:50,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 170 transitions, 801 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 06:32:50,575 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 305 flow [2023-08-25 06:32:50,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=305, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2023-08-25 06:32:50,576 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2023-08-25 06:32:50,576 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 305 flow [2023-08-25 06:32:50,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 128.52173913043478) internal successors, (2956), 23 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:50,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:50,578 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:50,591 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 06:32:50,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-25 06:32:50,786 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:50,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:50,786 INFO L85 PathProgramCache]: Analyzing trace with hash -142186198, now seen corresponding path program 2 times [2023-08-25 06:32:50,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:50,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430438252] [2023-08-25 06:32:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:50,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:52,105 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 06:32:52,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430438252] [2023-08-25 06:32:52,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430438252] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056220855] [2023-08-25 06:32:52,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:32:52,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:52,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:52,109 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 06:32:52,112 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 06:32:52,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:32:52,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:32:52,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 06:32:52,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:32:52,950 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:32:52,955 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 06:32:52,956 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 52 [2023-08-25 06:32:53,013 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 06:32:53,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:32:53,038 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:53,038 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-25 06:32:53,060 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:53,061 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:32:53,285 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:53,286 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 115 treesize of output 75 [2023-08-25 06:32:53,295 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:53,296 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:32:53,535 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 06:32:53,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056220855] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:32:53,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:32:53,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 22 [2023-08-25 06:32:53,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840657713] [2023-08-25 06:32:53,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:32:53,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 06:32:53,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:53,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 06:32:53,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2023-08-25 06:32:53,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 466 [2023-08-25 06:32:53,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 305 flow. Second operand has 24 states, 24 states have (on average 129.25) internal successors, (3102), 24 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:53,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:53,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 466 [2023-08-25 06:32:53,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:54,752 INFO L124 PetriNetUnfolderBase]: 2922/4797 cut-off events. [2023-08-25 06:32:54,752 INFO L125 PetriNetUnfolderBase]: For 5082/5150 co-relation queries the response was YES. [2023-08-25 06:32:54,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13525 conditions, 4797 events. 2922/4797 cut-off events. For 5082/5150 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 30474 event pairs, 490 based on Foata normal form. 31/4774 useless extension candidates. Maximal degree in co-relation 13513. Up to 3154 conditions per place. [2023-08-25 06:32:54,792 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 127 selfloop transitions, 23 changer transitions 1/158 dead transitions. [2023-08-25 06:32:54,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 158 transitions, 890 flow [2023-08-25 06:32:54,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 06:32:54,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 06:32:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1259 transitions. [2023-08-25 06:32:54,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3001907486886028 [2023-08-25 06:32:54,796 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1259 transitions. [2023-08-25 06:32:54,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1259 transitions. [2023-08-25 06:32:54,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:54,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1259 transitions. [2023-08-25 06:32:54,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 139.88888888888889) internal successors, (1259), 9 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:54,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:54,819 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 466.0) internal successors, (4660), 10 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:54,819 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 305 flow. Second operand 9 states and 1259 transitions. [2023-08-25 06:32:54,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 158 transitions, 890 flow [2023-08-25 06:32:54,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 158 transitions, 882 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 06:32:54,835 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 437 flow [2023-08-25 06:32:54,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=437, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2023-08-25 06:32:54,835 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -5 predicate places. [2023-08-25 06:32:54,835 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 437 flow [2023-08-25 06:32:54,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 129.25) internal successors, (3102), 24 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:54,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:54,836 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:54,846 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 06:32:55,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:55,037 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:55,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1364417632, now seen corresponding path program 3 times [2023-08-25 06:32:55,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:55,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594550554] [2023-08-25 06:32:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:55,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:55,747 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 06:32:55,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:55,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594550554] [2023-08-25 06:32:55,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594550554] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:55,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703527181] [2023-08-25 06:32:55,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 06:32:55,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:55,750 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 06:32:55,752 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 06:32:55,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 06:32:55,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:32:55,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 06:32:56,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:32:56,331 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 67 [2023-08-25 06:32:56,355 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 8 treesize of output 1 [2023-08-25 06:32:56,359 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:56,360 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:32:56,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:32:56,504 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 06:32:56,504 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 55 [2023-08-25 06:32:56,579 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 06:32:56,579 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:32:56,706 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:56,706 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 115 treesize of output 75 [2023-08-25 06:32:56,716 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:56,716 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:32:56,903 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 06:32:56,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703527181] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:32:56,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:32:56,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2023-08-25 06:32:56,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561691550] [2023-08-25 06:32:56,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:32:56,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 06:32:56,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:32:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 06:32:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2023-08-25 06:32:56,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 466 [2023-08-25 06:32:56,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 437 flow. Second operand has 21 states, 21 states have (on average 155.9047619047619) internal successors, (3274), 21 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:56,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:32:56,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 466 [2023-08-25 06:32:56,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:32:57,877 INFO L124 PetriNetUnfolderBase]: 1148/2315 cut-off events. [2023-08-25 06:32:57,878 INFO L125 PetriNetUnfolderBase]: For 3642/3739 co-relation queries the response was YES. [2023-08-25 06:32:57,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6704 conditions, 2315 events. 1148/2315 cut-off events. For 3642/3739 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 15109 event pairs, 198 based on Foata normal form. 40/2298 useless extension candidates. Maximal degree in co-relation 6688. Up to 1237 conditions per place. [2023-08-25 06:32:57,904 INFO L140 encePairwiseOnDemand]: 456/466 looper letters, 85 selfloop transitions, 31 changer transitions 1/136 dead transitions. [2023-08-25 06:32:57,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 136 transitions, 924 flow [2023-08-25 06:32:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 06:32:57,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 06:32:57,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1621 transitions. [2023-08-25 06:32:57,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3478540772532189 [2023-08-25 06:32:57,909 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1621 transitions. [2023-08-25 06:32:57,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1621 transitions. [2023-08-25 06:32:57,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:32:57,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1621 transitions. [2023-08-25 06:32:57,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 162.1) internal successors, (1621), 10 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:57,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:57,919 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:57,919 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 437 flow. Second operand 10 states and 1621 transitions. [2023-08-25 06:32:57,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 136 transitions, 924 flow [2023-08-25 06:32:57,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 882 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-08-25 06:32:57,928 INFO L231 Difference]: Finished difference. Result has 88 places, 93 transitions, 620 flow [2023-08-25 06:32:57,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=620, PETRI_PLACES=88, PETRI_TRANSITIONS=93} [2023-08-25 06:32:57,929 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 4 predicate places. [2023-08-25 06:32:57,930 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 93 transitions, 620 flow [2023-08-25 06:32:57,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 155.9047619047619) internal successors, (3274), 21 states have internal predecessors, (3274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:32:57,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:32:57,931 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:32:57,944 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 06:32:58,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:58,138 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:32:58,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:32:58,138 INFO L85 PathProgramCache]: Analyzing trace with hash 552496860, now seen corresponding path program 4 times [2023-08-25 06:32:58,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:32:58,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909860076] [2023-08-25 06:32:58,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:32:58,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:32:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:32:58,749 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 06:32:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:32:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909860076] [2023-08-25 06:32:58,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909860076] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:32:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228147347] [2023-08-25 06:32:58,751 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 06:32:58,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:32:58,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:32:58,753 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 06:32:58,755 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 06:32:59,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 06:32:59,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:32:59,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-25 06:32:59,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:32:59,637 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:32:59,659 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 8 treesize of output 1 [2023-08-25 06:32:59,671 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:59,671 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:32:59,743 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 75 treesize of output 51 [2023-08-25 06:32:59,746 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 0 case distinctions, treesize of input 36 treesize of output 39 [2023-08-25 06:32:59,749 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 0 case distinctions, treesize of input 33 treesize of output 36 [2023-08-25 06:32:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:32:59,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:32:59,984 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:59,985 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 115 treesize of output 75 [2023-08-25 06:32:59,997 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:32:59,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:33:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:33:00,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228147347] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:00,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:00,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 20 [2023-08-25 06:33:00,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822370737] [2023-08-25 06:33:00,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:00,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-08-25 06:33:00,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:00,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-08-25 06:33:00,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2023-08-25 06:33:00,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 466 [2023-08-25 06:33:00,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 620 flow. Second operand has 22 states, 22 states have (on average 151.9090909090909) internal successors, (3342), 22 states have internal predecessors, (3342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:00,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:00,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 466 [2023-08-25 06:33:00,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:33:01,979 INFO L124 PetriNetUnfolderBase]: 1838/3647 cut-off events. [2023-08-25 06:33:01,979 INFO L125 PetriNetUnfolderBase]: For 8449/8560 co-relation queries the response was YES. [2023-08-25 06:33:01,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11676 conditions, 3647 events. 1838/3647 cut-off events. For 8449/8560 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 25135 event pairs, 259 based on Foata normal form. 42/3649 useless extension candidates. Maximal degree in co-relation 11655. Up to 1941 conditions per place. [2023-08-25 06:33:02,004 INFO L140 encePairwiseOnDemand]: 454/466 looper letters, 136 selfloop transitions, 69 changer transitions 1/224 dead transitions. [2023-08-25 06:33:02,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 224 transitions, 1751 flow [2023-08-25 06:33:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-25 06:33:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-25 06:33:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3449 transitions. [2023-08-25 06:33:02,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33642216152945764 [2023-08-25 06:33:02,016 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3449 transitions. [2023-08-25 06:33:02,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3449 transitions. [2023-08-25 06:33:02,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:33:02,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3449 transitions. [2023-08-25 06:33:02,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 156.77272727272728) internal successors, (3449), 22 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:02,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 466.0) internal successors, (10718), 23 states have internal predecessors, (10718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:02,039 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 466.0) internal successors, (10718), 23 states have internal predecessors, (10718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:02,039 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 620 flow. Second operand 22 states and 3449 transitions. [2023-08-25 06:33:02,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 224 transitions, 1751 flow [2023-08-25 06:33:02,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 224 transitions, 1704 flow, removed 21 selfloop flow, removed 2 redundant places. [2023-08-25 06:33:02,061 INFO L231 Difference]: Finished difference. Result has 118 places, 140 transitions, 1255 flow [2023-08-25 06:33:02,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1255, PETRI_PLACES=118, PETRI_TRANSITIONS=140} [2023-08-25 06:33:02,062 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 34 predicate places. [2023-08-25 06:33:02,063 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 140 transitions, 1255 flow [2023-08-25 06:33:02,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 151.9090909090909) internal successors, (3342), 22 states have internal predecessors, (3342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:02,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:33:02,064 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:33:02,074 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 06:33:02,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 06:33:02,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:33:02,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:33:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash 606753338, now seen corresponding path program 5 times [2023-08-25 06:33:02,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:33:02,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522678892] [2023-08-25 06:33:02,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:33:02,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:33:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:03,036 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 06:33:03,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:33:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522678892] [2023-08-25 06:33:03,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522678892] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:33:03,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509173370] [2023-08-25 06:33:03,037 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 06:33:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:33:03,038 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 06:33:03,041 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 06:33:03,278 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:33:03,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:33:03,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 33 conjunts are in the unsatisfiable core [2023-08-25 06:33:03,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:33:03,530 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 06:33:03,536 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 06:33:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 06:33:03,626 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 34 treesize of output 32 [2023-08-25 06:33:03,801 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:33:03,805 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 06:33:03,806 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 52 [2023-08-25 06:33:03,955 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 06:33:03,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:33:04,328 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:04,329 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 181 treesize of output 157 [2023-08-25 06:33:04,343 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:04,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:33:04,354 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 81 treesize of output 69 [2023-08-25 06:33:04,362 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 69 treesize of output 63 [2023-08-25 06:33:04,380 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:04,381 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:33:05,249 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 06:33:05,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509173370] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:05,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:05,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 23 [2023-08-25 06:33:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940870725] [2023-08-25 06:33:05,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:05,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 06:33:05,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:05,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 06:33:05,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=513, Unknown=1, NotChecked=0, Total=600 [2023-08-25 06:33:05,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 466 [2023-08-25 06:33:05,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 140 transitions, 1255 flow. Second operand has 25 states, 25 states have (on average 145.76) internal successors, (3644), 25 states have internal predecessors, (3644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:05,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:05,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 466 [2023-08-25 06:33:05,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:33:18,318 WARN L234 SmtUtils]: Spent 12.26s on a formula simplification. DAG size of input: 69 DAG size of output: 50 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 06:33:30,707 WARN L234 SmtUtils]: Spent 12.23s on a formula simplification. DAG size of input: 57 DAG size of output: 42 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 06:33:31,282 INFO L124 PetriNetUnfolderBase]: 1798/3623 cut-off events. [2023-08-25 06:33:31,282 INFO L125 PetriNetUnfolderBase]: For 14454/14679 co-relation queries the response was YES. [2023-08-25 06:33:31,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13848 conditions, 3623 events. 1798/3623 cut-off events. For 14454/14679 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 25566 event pairs, 239 based on Foata normal form. 42/3544 useless extension candidates. Maximal degree in co-relation 13815. Up to 1640 conditions per place. [2023-08-25 06:33:31,310 INFO L140 encePairwiseOnDemand]: 455/466 looper letters, 135 selfloop transitions, 75 changer transitions 1/229 dead transitions. [2023-08-25 06:33:31,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 229 transitions, 2092 flow [2023-08-25 06:33:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 06:33:31,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 06:33:31,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1707 transitions. [2023-08-25 06:33:31,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.333008193523215 [2023-08-25 06:33:31,316 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1707 transitions. [2023-08-25 06:33:31,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1707 transitions. [2023-08-25 06:33:31,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:33:31,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1707 transitions. [2023-08-25 06:33:31,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 155.1818181818182) internal successors, (1707), 11 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:31,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:31,326 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 466.0) internal successors, (5592), 12 states have internal predecessors, (5592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:31,326 INFO L175 Difference]: Start difference. First operand has 118 places, 140 transitions, 1255 flow. Second operand 11 states and 1707 transitions. [2023-08-25 06:33:31,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 229 transitions, 2092 flow [2023-08-25 06:33:31,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 229 transitions, 1985 flow, removed 26 selfloop flow, removed 6 redundant places. [2023-08-25 06:33:31,360 INFO L231 Difference]: Finished difference. Result has 126 places, 155 transitions, 1513 flow [2023-08-25 06:33:31,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1513, PETRI_PLACES=126, PETRI_TRANSITIONS=155} [2023-08-25 06:33:31,361 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 42 predicate places. [2023-08-25 06:33:31,361 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 155 transitions, 1513 flow [2023-08-25 06:33:31,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 145.76) internal successors, (3644), 25 states have internal predecessors, (3644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:31,362 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:33:31,362 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:33:31,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-08-25 06:33:31,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:31,569 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:33:31,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:33:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1526114660, now seen corresponding path program 6 times [2023-08-25 06:33:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:33:31,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371254342] [2023-08-25 06:33:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:33:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:33:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:32,626 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 06:33:32,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:33:32,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371254342] [2023-08-25 06:33:32,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371254342] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:33:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403402877] [2023-08-25 06:33:32,627 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 06:33:32,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:32,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:33:32,628 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:33:32,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-08-25 06:33:32,891 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-08-25 06:33:32,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:33:32,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-25 06:33:32,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:33:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 06:33:32,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 06:33:32,913 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 18 treesize of output 16 [2023-08-25 06:33:32,946 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-25 06:33:32,984 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 06:33:33,098 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 06:33:33,118 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 06:33:33,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 06:33:33,212 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2023-08-25 06:33:33,318 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 34 treesize of output 32 [2023-08-25 06:33:33,449 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 81 treesize of output 57 [2023-08-25 06:33:33,453 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 0 case distinctions, treesize of input 36 treesize of output 39 [2023-08-25 06:33:33,458 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 0 case distinctions, treesize of input 33 treesize of output 36 [2023-08-25 06:33:33,666 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 06:33:33,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:33:33,977 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:33,977 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-25 06:33:34,013 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:34,014 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:33:38,725 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,725 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 55 treesize of output 43 [2023-08-25 06:33:38,740 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,740 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 1243 treesize of output 1183 [2023-08-25 06:33:38,760 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,760 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 75 [2023-08-25 06:33:38,770 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 59 treesize of output 47 [2023-08-25 06:33:38,780 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 70 treesize of output 46 [2023-08-25 06:33:38,943 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,944 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 77 treesize of output 53 [2023-08-25 06:33:38,956 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,956 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 340 treesize of output 324 [2023-08-25 06:33:38,976 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:38,976 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 87 [2023-08-25 06:33:38,985 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 118 [2023-08-25 06:33:38,996 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 118 treesize of output 94 [2023-08-25 06:33:39,214 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-08-25 06:33:39,215 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 87 treesize of output 1 [2023-08-25 06:33:39,223 INFO L322 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-08-25 06:33:39,224 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 106 treesize of output 1 [2023-08-25 06:33:39,275 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 06:33:39,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403402877] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:39,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:39,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 23 [2023-08-25 06:33:39,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114410139] [2023-08-25 06:33:39,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:39,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 06:33:39,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:39,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 06:33:39,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=477, Unknown=18, NotChecked=0, Total=600 [2023-08-25 06:33:39,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 466 [2023-08-25 06:33:39,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 155 transitions, 1513 flow. Second operand has 25 states, 25 states have (on average 128.32) internal successors, (3208), 25 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:39,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:39,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 466 [2023-08-25 06:33:39,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:33:47,228 INFO L124 PetriNetUnfolderBase]: 5814/10148 cut-off events. [2023-08-25 06:33:47,229 INFO L125 PetriNetUnfolderBase]: For 52259/52768 co-relation queries the response was YES. [2023-08-25 06:33:47,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43832 conditions, 10148 events. 5814/10148 cut-off events. For 52259/52768 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 76668 event pairs, 475 based on Foata normal form. 119/9971 useless extension candidates. Maximal degree in co-relation 43794. Up to 5157 conditions per place. [2023-08-25 06:33:47,312 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 173 selfloop transitions, 81 changer transitions 1/265 dead transitions. [2023-08-25 06:33:47,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 265 transitions, 2482 flow [2023-08-25 06:33:47,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 06:33:47,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 06:33:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2023-08-25 06:33:47,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30300429184549355 [2023-08-25 06:33:47,316 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1412 transitions. [2023-08-25 06:33:47,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1412 transitions. [2023-08-25 06:33:47,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:33:47,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1412 transitions. [2023-08-25 06:33:47,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:47,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:47,324 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:47,324 INFO L175 Difference]: Start difference. First operand has 126 places, 155 transitions, 1513 flow. Second operand 10 states and 1412 transitions. [2023-08-25 06:33:47,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 265 transitions, 2482 flow [2023-08-25 06:33:47,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 265 transitions, 2351 flow, removed 41 selfloop flow, removed 5 redundant places. [2023-08-25 06:33:47,596 INFO L231 Difference]: Finished difference. Result has 133 places, 166 transitions, 1759 flow [2023-08-25 06:33:47,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1394, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1759, PETRI_PLACES=133, PETRI_TRANSITIONS=166} [2023-08-25 06:33:47,597 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 49 predicate places. [2023-08-25 06:33:47,597 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 166 transitions, 1759 flow [2023-08-25 06:33:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 128.32) internal successors, (3208), 25 states have internal predecessors, (3208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:47,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:33:47,598 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:33:47,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-08-25 06:33:47,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:47,798 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:33:47,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:33:47,799 INFO L85 PathProgramCache]: Analyzing trace with hash -733235660, now seen corresponding path program 7 times [2023-08-25 06:33:47,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:33:47,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374178595] [2023-08-25 06:33:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:33:47,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:33:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:48,853 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 06:33:48,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:33:48,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374178595] [2023-08-25 06:33:48,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374178595] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:33:48,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787289485] [2023-08-25 06:33:48,853 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 06:33:48,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:48,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:33:48,854 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:33:48,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-08-25 06:33:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:49,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 29 conjunts are in the unsatisfiable core [2023-08-25 06:33:49,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:33:49,288 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:33:49,316 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 8 treesize of output 1 [2023-08-25 06:33:49,325 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:49,325 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:33:49,469 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-08-25 06:33:49,470 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 80 [2023-08-25 06:33:49,474 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 0 case distinctions, treesize of input 36 treesize of output 39 [2023-08-25 06:33:49,479 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 0 case distinctions, treesize of input 33 treesize of output 36 [2023-08-25 06:33:49,625 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 06:33:49,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:33:49,739 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:49,739 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 115 treesize of output 75 [2023-08-25 06:33:49,749 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:49,749 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:33:49,980 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 06:33:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787289485] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:49,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:49,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 22 [2023-08-25 06:33:49,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745975485] [2023-08-25 06:33:49,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 06:33:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:49,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 06:33:49,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2023-08-25 06:33:49,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 466 [2023-08-25 06:33:49,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 166 transitions, 1759 flow. Second operand has 24 states, 24 states have (on average 128.75) internal successors, (3090), 24 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:49,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:49,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 466 [2023-08-25 06:33:49,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:33:52,299 INFO L124 PetriNetUnfolderBase]: 7014/11424 cut-off events. [2023-08-25 06:33:52,299 INFO L125 PetriNetUnfolderBase]: For 73036/73842 co-relation queries the response was YES. [2023-08-25 06:33:52,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54282 conditions, 11424 events. 7014/11424 cut-off events. For 73036/73842 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 83664 event pairs, 1403 based on Foata normal form. 351/11435 useless extension candidates. Maximal degree in co-relation 54240. Up to 7392 conditions per place. [2023-08-25 06:33:52,419 INFO L140 encePairwiseOnDemand]: 456/466 looper letters, 254 selfloop transitions, 83 changer transitions 9/356 dead transitions. [2023-08-25 06:33:52,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 356 transitions, 3325 flow [2023-08-25 06:33:52,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 06:33:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 06:33:52,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2372 transitions. [2023-08-25 06:33:52,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.299419338550871 [2023-08-25 06:33:52,424 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2372 transitions. [2023-08-25 06:33:52,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2372 transitions. [2023-08-25 06:33:52,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:33:52,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2372 transitions. [2023-08-25 06:33:52,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.52941176470588) internal successors, (2372), 17 states have internal predecessors, (2372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:52,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:52,439 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:52,439 INFO L175 Difference]: Start difference. First operand has 133 places, 166 transitions, 1759 flow. Second operand 17 states and 2372 transitions. [2023-08-25 06:33:52,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 356 transitions, 3325 flow [2023-08-25 06:33:52,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 356 transitions, 3226 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-08-25 06:33:52,736 INFO L231 Difference]: Finished difference. Result has 149 places, 194 transitions, 2239 flow [2023-08-25 06:33:52,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1662, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2239, PETRI_PLACES=149, PETRI_TRANSITIONS=194} [2023-08-25 06:33:52,737 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 65 predicate places. [2023-08-25 06:33:52,737 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 194 transitions, 2239 flow [2023-08-25 06:33:52,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 128.75) internal successors, (3090), 24 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:52,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:33:52,738 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:33:52,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 06:33:52,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 06:33:52,944 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:33:52,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:33:52,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1240771650, now seen corresponding path program 8 times [2023-08-25 06:33:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:33:52,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227397057] [2023-08-25 06:33:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:33:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:33:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:53,677 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 06:33:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:33:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227397057] [2023-08-25 06:33:53,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227397057] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:33:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213844664] [2023-08-25 06:33:53,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:33:53,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:53,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:33:53,679 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:33:53,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-08-25 06:33:53,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:33:53,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:33:53,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 26 conjunts are in the unsatisfiable core [2023-08-25 06:33:53,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:33:54,106 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 73 [2023-08-25 06:33:54,135 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:54,136 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:33:54,149 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 8 treesize of output 1 [2023-08-25 06:33:54,398 INFO L322 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2023-08-25 06:33:54,398 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 80 [2023-08-25 06:33:54,402 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 0 case distinctions, treesize of input 36 treesize of output 39 [2023-08-25 06:33:54,406 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 0 case distinctions, treesize of input 33 treesize of output 36 [2023-08-25 06:33:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:33:54,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:33:54,665 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:54,666 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 103 treesize of output 75 [2023-08-25 06:33:54,673 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:33:54,674 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:33:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:33:54,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213844664] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:54,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:54,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 21 [2023-08-25 06:33:54,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406769801] [2023-08-25 06:33:54,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:54,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 06:33:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:54,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 06:33:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2023-08-25 06:33:54,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 466 [2023-08-25 06:33:54,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 194 transitions, 2239 flow. Second operand has 23 states, 23 states have (on average 151.82608695652175) internal successors, (3492), 23 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:54,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:54,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 466 [2023-08-25 06:33:54,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:33:57,107 INFO L124 PetriNetUnfolderBase]: 3371/6660 cut-off events. [2023-08-25 06:33:57,107 INFO L125 PetriNetUnfolderBase]: For 40189/40630 co-relation queries the response was YES. [2023-08-25 06:33:57,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29651 conditions, 6660 events. 3371/6660 cut-off events. For 40189/40630 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 50662 event pairs, 602 based on Foata normal form. 205/6797 useless extension candidates. Maximal degree in co-relation 29603. Up to 3453 conditions per place. [2023-08-25 06:33:57,163 INFO L140 encePairwiseOnDemand]: 454/466 looper letters, 180 selfloop transitions, 136 changer transitions 2/336 dead transitions. [2023-08-25 06:33:57,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 336 transitions, 4084 flow [2023-08-25 06:33:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 06:33:57,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 06:33:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3310 transitions. [2023-08-25 06:33:57,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33823829961169016 [2023-08-25 06:33:57,168 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3310 transitions. [2023-08-25 06:33:57,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3310 transitions. [2023-08-25 06:33:57,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:33:57,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3310 transitions. [2023-08-25 06:33:57,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 157.61904761904762) internal successors, (3310), 21 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:57,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 466.0) internal successors, (10252), 22 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:57,181 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 466.0) internal successors, (10252), 22 states have internal predecessors, (10252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:57,181 INFO L175 Difference]: Start difference. First operand has 149 places, 194 transitions, 2239 flow. Second operand 21 states and 3310 transitions. [2023-08-25 06:33:57,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 336 transitions, 4084 flow [2023-08-25 06:33:57,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 336 transitions, 3820 flow, removed 92 selfloop flow, removed 6 redundant places. [2023-08-25 06:33:57,291 INFO L231 Difference]: Finished difference. Result has 174 places, 243 transitions, 3160 flow [2023-08-25 06:33:57,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=1990, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3160, PETRI_PLACES=174, PETRI_TRANSITIONS=243} [2023-08-25 06:33:57,292 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 90 predicate places. [2023-08-25 06:33:57,292 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 243 transitions, 3160 flow [2023-08-25 06:33:57,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 151.82608695652175) internal successors, (3492), 23 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:57,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:33:57,293 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:33:57,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-08-25 06:33:57,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 06:33:57,499 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:33:57,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:33:57,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1507821141, now seen corresponding path program 9 times [2023-08-25 06:33:57,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:33:57,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684710989] [2023-08-25 06:33:57,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:33:57,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:33:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:33:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:33:57,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:33:57,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684710989] [2023-08-25 06:33:57,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684710989] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:33:57,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491702436] [2023-08-25 06:33:57,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 06:33:57,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:33:57,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:33:57,683 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:33:57,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 06:33:57,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 06:33:57,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:33:57,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 06:33:57,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:33:58,072 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 06:33:58,073 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:33:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 06:33:58,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491702436] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:33:58,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:33:58,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 16 [2023-08-25 06:33:58,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41666592] [2023-08-25 06:33:58,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:33:58,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 06:33:58,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:33:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 06:33:58,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-08-25 06:33:58,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 466 [2023-08-25 06:33:58,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 243 transitions, 3160 flow. Second operand has 17 states, 17 states have (on average 167.35294117647058) internal successors, (2845), 17 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:33:58,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:33:58,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 466 [2023-08-25 06:33:58,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:00,422 INFO L124 PetriNetUnfolderBase]: 4115/8294 cut-off events. [2023-08-25 06:34:00,423 INFO L125 PetriNetUnfolderBase]: For 71606/71854 co-relation queries the response was YES. [2023-08-25 06:34:00,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41154 conditions, 8294 events. 4115/8294 cut-off events. For 71606/71854 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 67816 event pairs, 889 based on Foata normal form. 135/8190 useless extension candidates. Maximal degree in co-relation 41094. Up to 3193 conditions per place. [2023-08-25 06:34:00,486 INFO L140 encePairwiseOnDemand]: 453/466 looper letters, 365 selfloop transitions, 157 changer transitions 0/540 dead transitions. [2023-08-25 06:34:00,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 540 transitions, 7582 flow [2023-08-25 06:34:00,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-25 06:34:00,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-25 06:34:00,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 4469 transitions. [2023-08-25 06:34:00,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36885110597556947 [2023-08-25 06:34:00,491 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 4469 transitions. [2023-08-25 06:34:00,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 4469 transitions. [2023-08-25 06:34:00,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:00,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 4469 transitions. [2023-08-25 06:34:00,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 171.8846153846154) internal successors, (4469), 26 states have internal predecessors, (4469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:00,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 466.0) internal successors, (12582), 27 states have internal predecessors, (12582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:00,508 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 466.0) internal successors, (12582), 27 states have internal predecessors, (12582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:00,508 INFO L175 Difference]: Start difference. First operand has 174 places, 243 transitions, 3160 flow. Second operand 26 states and 4469 transitions. [2023-08-25 06:34:00,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 540 transitions, 7582 flow [2023-08-25 06:34:00,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 540 transitions, 6997 flow, removed 231 selfloop flow, removed 10 redundant places. [2023-08-25 06:34:00,691 INFO L231 Difference]: Finished difference. Result has 205 places, 331 transitions, 4644 flow [2023-08-25 06:34:00,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2818, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4644, PETRI_PLACES=205, PETRI_TRANSITIONS=331} [2023-08-25 06:34:00,692 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 121 predicate places. [2023-08-25 06:34:00,692 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 331 transitions, 4644 flow [2023-08-25 06:34:00,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 167.35294117647058) internal successors, (2845), 17 states have internal predecessors, (2845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:00,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:00,693 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:00,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-08-25 06:34:00,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 06:34:00,900 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:00,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1491432757, now seen corresponding path program 10 times [2023-08-25 06:34:00,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:00,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708078511] [2023-08-25 06:34:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:00,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:01,038 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 06:34:01,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:01,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708078511] [2023-08-25 06:34:01,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708078511] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:01,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387727365] [2023-08-25 06:34:01,038 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 06:34:01,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:01,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:01,041 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:01,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 06:34:01,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 06:34:01,241 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:01,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 06:34:01,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:01,361 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:34:01,362 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 06:34:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387727365] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:01,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:01,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 19 [2023-08-25 06:34:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730444037] [2023-08-25 06:34:01,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:01,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 06:34:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 06:34:01,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-08-25 06:34:01,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 466 [2023-08-25 06:34:01,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 331 transitions, 4644 flow. Second operand has 19 states, 19 states have (on average 166.89473684210526) internal successors, (3171), 19 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:01,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:01,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 466 [2023-08-25 06:34:01,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:03,719 INFO L124 PetriNetUnfolderBase]: 3866/8210 cut-off events. [2023-08-25 06:34:03,719 INFO L125 PetriNetUnfolderBase]: For 128176/128689 co-relation queries the response was YES. [2023-08-25 06:34:03,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48155 conditions, 8210 events. 3866/8210 cut-off events. For 128176/128689 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 69798 event pairs, 623 based on Foata normal form. 478/8572 useless extension candidates. Maximal degree in co-relation 48083. Up to 1245 conditions per place. [2023-08-25 06:34:03,799 INFO L140 encePairwiseOnDemand]: 453/466 looper letters, 522 selfloop transitions, 129 changer transitions 0/669 dead transitions. [2023-08-25 06:34:03,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 669 transitions, 9989 flow [2023-08-25 06:34:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 06:34:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 06:34:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3468 transitions. [2023-08-25 06:34:03,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3721030042918455 [2023-08-25 06:34:03,864 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3468 transitions. [2023-08-25 06:34:03,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3468 transitions. [2023-08-25 06:34:03,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:03,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3468 transitions. [2023-08-25 06:34:03,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 173.4) internal successors, (3468), 20 states have internal predecessors, (3468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:03,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 466.0) internal successors, (9786), 21 states have internal predecessors, (9786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:03,878 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 466.0) internal successors, (9786), 21 states have internal predecessors, (9786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:03,878 INFO L175 Difference]: Start difference. First operand has 205 places, 331 transitions, 4644 flow. Second operand 20 states and 3468 transitions. [2023-08-25 06:34:03,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 669 transitions, 9989 flow [2023-08-25 06:34:04,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 669 transitions, 9244 flow, removed 362 selfloop flow, removed 4 redundant places. [2023-08-25 06:34:04,208 INFO L231 Difference]: Finished difference. Result has 230 places, 364 transitions, 5136 flow [2023-08-25 06:34:04,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=3878, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5136, PETRI_PLACES=230, PETRI_TRANSITIONS=364} [2023-08-25 06:34:04,208 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 146 predicate places. [2023-08-25 06:34:04,208 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 364 transitions, 5136 flow [2023-08-25 06:34:04,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 166.89473684210526) internal successors, (3171), 19 states have internal predecessors, (3171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:04,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:04,209 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:04,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:04,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:04,410 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:04,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1139338913, now seen corresponding path program 11 times [2023-08-25 06:34:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:04,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125727944] [2023-08-25 06:34:04,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:04,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:34:04,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125727944] [2023-08-25 06:34:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125727944] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891799264] [2023-08-25 06:34:04,537 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 06:34:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:04,545 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:04,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 06:34:04,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-25 06:34:04,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:04,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 06:34:04,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:34:04,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:34:04,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891799264] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:04,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:04,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-08-25 06:34:04,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434458825] [2023-08-25 06:34:04,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:04,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 06:34:04,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:04,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 06:34:04,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-08-25 06:34:04,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 466 [2023-08-25 06:34:04,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 364 transitions, 5136 flow. Second operand has 14 states, 14 states have (on average 174.85714285714286) internal successors, (2448), 14 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:04,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:04,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 466 [2023-08-25 06:34:04,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:06,400 INFO L124 PetriNetUnfolderBase]: 2781/6592 cut-off events. [2023-08-25 06:34:06,400 INFO L125 PetriNetUnfolderBase]: For 107370/108077 co-relation queries the response was YES. [2023-08-25 06:34:06,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37558 conditions, 6592 events. 2781/6592 cut-off events. For 107370/108077 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 60081 event pairs, 917 based on Foata normal form. 296/6620 useless extension candidates. Maximal degree in co-relation 37476. Up to 2159 conditions per place. [2023-08-25 06:34:06,465 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 265 selfloop transitions, 37 changer transitions 15/372 dead transitions. [2023-08-25 06:34:06,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 372 transitions, 5813 flow [2023-08-25 06:34:06,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 06:34:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 06:34:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1271 transitions. [2023-08-25 06:34:06,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38963825873697117 [2023-08-25 06:34:06,466 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1271 transitions. [2023-08-25 06:34:06,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1271 transitions. [2023-08-25 06:34:06,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:06,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1271 transitions. [2023-08-25 06:34:06,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 181.57142857142858) internal successors, (1271), 7 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:06,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 466.0) internal successors, (3728), 8 states have internal predecessors, (3728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:06,471 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 466.0) internal successors, (3728), 8 states have internal predecessors, (3728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:06,471 INFO L175 Difference]: Start difference. First operand has 230 places, 364 transitions, 5136 flow. Second operand 7 states and 1271 transitions. [2023-08-25 06:34:06,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 372 transitions, 5813 flow [2023-08-25 06:34:06,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 372 transitions, 5511 flow, removed 133 selfloop flow, removed 6 redundant places. [2023-08-25 06:34:06,809 INFO L231 Difference]: Finished difference. Result has 225 places, 312 transitions, 4336 flow [2023-08-25 06:34:06,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=4448, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4336, PETRI_PLACES=225, PETRI_TRANSITIONS=312} [2023-08-25 06:34:06,810 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 141 predicate places. [2023-08-25 06:34:06,810 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 312 transitions, 4336 flow [2023-08-25 06:34:06,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 174.85714285714286) internal successors, (2448), 14 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:06,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:06,811 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:06,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:07,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:07,018 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:07,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:07,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1217651439, now seen corresponding path program 1 times [2023-08-25 06:34:07,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:07,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411473775] [2023-08-25 06:34:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:07,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:07,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411473775] [2023-08-25 06:34:07,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411473775] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:07,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504403918] [2023-08-25 06:34:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:07,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:07,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:07,157 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:07,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 06:34:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:07,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 06:34:07,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:07,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:07,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504403918] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:07,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:07,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-25 06:34:07,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217830241] [2023-08-25 06:34:07,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:07,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-25 06:34:07,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:07,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-25 06:34:07,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-25 06:34:07,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 466 [2023-08-25 06:34:07,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 312 transitions, 4336 flow. Second operand has 12 states, 12 states have (on average 174.33333333333334) internal successors, (2092), 12 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:07,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:07,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 466 [2023-08-25 06:34:07,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:08,666 INFO L124 PetriNetUnfolderBase]: 2415/5812 cut-off events. [2023-08-25 06:34:08,666 INFO L125 PetriNetUnfolderBase]: For 80397/81016 co-relation queries the response was YES. [2023-08-25 06:34:08,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30854 conditions, 5812 events. 2415/5812 cut-off events. For 80397/81016 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 51669 event pairs, 1074 based on Foata normal form. 286/5927 useless extension candidates. Maximal degree in co-relation 30774. Up to 2263 conditions per place. [2023-08-25 06:34:08,713 INFO L140 encePairwiseOnDemand]: 460/466 looper letters, 160 selfloop transitions, 3 changer transitions 109/301 dead transitions. [2023-08-25 06:34:08,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 301 transitions, 4654 flow [2023-08-25 06:34:08,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 06:34:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 06:34:08,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1084 transitions. [2023-08-25 06:34:08,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3876967095851216 [2023-08-25 06:34:08,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1084 transitions. [2023-08-25 06:34:08,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1084 transitions. [2023-08-25 06:34:08,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:08,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1084 transitions. [2023-08-25 06:34:08,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 180.66666666666666) internal successors, (1084), 6 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:08,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:08,718 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 466.0) internal successors, (3262), 7 states have internal predecessors, (3262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:08,718 INFO L175 Difference]: Start difference. First operand has 225 places, 312 transitions, 4336 flow. Second operand 6 states and 1084 transitions. [2023-08-25 06:34:08,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 301 transitions, 4654 flow [2023-08-25 06:34:08,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 301 transitions, 4303 flow, removed 26 selfloop flow, removed 14 redundant places. [2023-08-25 06:34:08,939 INFO L231 Difference]: Finished difference. Result has 213 places, 192 transitions, 2486 flow [2023-08-25 06:34:08,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=3526, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2486, PETRI_PLACES=213, PETRI_TRANSITIONS=192} [2023-08-25 06:34:08,939 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 129 predicate places. [2023-08-25 06:34:08,939 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 192 transitions, 2486 flow [2023-08-25 06:34:08,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 174.33333333333334) internal successors, (2092), 12 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:08,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:08,940 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:08,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:09,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-08-25 06:34:09,141 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:09,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:09,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2002466842, now seen corresponding path program 12 times [2023-08-25 06:34:09,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:09,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166009359] [2023-08-25 06:34:09,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:09,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:09,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:09,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166009359] [2023-08-25 06:34:09,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166009359] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:09,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650759982] [2023-08-25 06:34:09,326 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 06:34:09,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:09,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:09,327 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:09,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-25 06:34:09,753 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 06:34:09,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:09,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:09,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:09,891 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:10,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650759982] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:10,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:10,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-08-25 06:34:10,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152998827] [2023-08-25 06:34:10,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:10,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 06:34:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:10,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 06:34:10,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-08-25 06:34:10,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:10,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 192 transitions, 2486 flow. Second operand has 18 states, 18 states have (on average 170.38888888888889) internal successors, (3067), 18 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:10,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:10,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:10,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:10,961 INFO L124 PetriNetUnfolderBase]: 1562/3297 cut-off events. [2023-08-25 06:34:10,961 INFO L125 PetriNetUnfolderBase]: For 55103/55516 co-relation queries the response was YES. [2023-08-25 06:34:10,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20276 conditions, 3297 events. 1562/3297 cut-off events. For 55103/55516 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 23527 event pairs, 362 based on Foata normal form. 131/3346 useless extension candidates. Maximal degree in co-relation 20202. Up to 937 conditions per place. [2023-08-25 06:34:10,997 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 185 selfloop transitions, 59 changer transitions 0/273 dead transitions. [2023-08-25 06:34:10,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 273 transitions, 3912 flow [2023-08-25 06:34:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 06:34:10,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 06:34:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1753 transitions. [2023-08-25 06:34:11,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3761802575107296 [2023-08-25 06:34:11,000 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1753 transitions. [2023-08-25 06:34:11,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1753 transitions. [2023-08-25 06:34:11,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:11,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1753 transitions. [2023-08-25 06:34:11,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 175.3) internal successors, (1753), 10 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:11,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:11,006 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:11,006 INFO L175 Difference]: Start difference. First operand has 213 places, 192 transitions, 2486 flow. Second operand 10 states and 1753 transitions. [2023-08-25 06:34:11,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 273 transitions, 3912 flow [2023-08-25 06:34:11,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 273 transitions, 3290 flow, removed 172 selfloop flow, removed 17 redundant places. [2023-08-25 06:34:11,141 INFO L231 Difference]: Finished difference. Result has 166 places, 199 transitions, 2333 flow [2023-08-25 06:34:11,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2050, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2333, PETRI_PLACES=166, PETRI_TRANSITIONS=199} [2023-08-25 06:34:11,142 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 82 predicate places. [2023-08-25 06:34:11,142 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 199 transitions, 2333 flow [2023-08-25 06:34:11,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 170.38888888888889) internal successors, (3067), 18 states have internal predecessors, (3067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:11,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:11,142 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:11,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:11,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:11,343 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:11,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1775655112, now seen corresponding path program 13 times [2023-08-25 06:34:11,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:11,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284427406] [2023-08-25 06:34:11,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:11,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284427406] [2023-08-25 06:34:11,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284427406] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:11,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022159713] [2023-08-25 06:34:11,606 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 06:34:11,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:11,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:11,607 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:11,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-25 06:34:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:11,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:11,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:12,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:12,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:12,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022159713] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:12,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:12,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2023-08-25 06:34:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945570099] [2023-08-25 06:34:12,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:12,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 06:34:12,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:12,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 06:34:12,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-08-25 06:34:12,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:12,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 199 transitions, 2333 flow. Second operand has 19 states, 19 states have (on average 170.05263157894737) internal successors, (3231), 19 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:12,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:12,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:12,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:13,134 INFO L124 PetriNetUnfolderBase]: 1613/3452 cut-off events. [2023-08-25 06:34:13,134 INFO L125 PetriNetUnfolderBase]: For 43107/43427 co-relation queries the response was YES. [2023-08-25 06:34:13,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18559 conditions, 3452 events. 1613/3452 cut-off events. For 43107/43427 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 25378 event pairs, 534 based on Foata normal form. 124/3472 useless extension candidates. Maximal degree in co-relation 18495. Up to 1888 conditions per place. [2023-08-25 06:34:13,164 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 183 selfloop transitions, 55 changer transitions 0/267 dead transitions. [2023-08-25 06:34:13,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 267 transitions, 3531 flow [2023-08-25 06:34:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 06:34:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 06:34:13,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1747 transitions. [2023-08-25 06:34:13,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37489270386266094 [2023-08-25 06:34:13,166 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1747 transitions. [2023-08-25 06:34:13,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1747 transitions. [2023-08-25 06:34:13,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:13,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1747 transitions. [2023-08-25 06:34:13,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 174.7) internal successors, (1747), 10 states have internal predecessors, (1747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:13,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:13,172 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 466.0) internal successors, (5126), 11 states have internal predecessors, (5126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:13,172 INFO L175 Difference]: Start difference. First operand has 166 places, 199 transitions, 2333 flow. Second operand 10 states and 1747 transitions. [2023-08-25 06:34:13,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 267 transitions, 3531 flow [2023-08-25 06:34:13,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 267 transitions, 3314 flow, removed 53 selfloop flow, removed 7 redundant places. [2023-08-25 06:34:13,265 INFO L231 Difference]: Finished difference. Result has 170 places, 217 transitions, 2591 flow [2023-08-25 06:34:13,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2186, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2591, PETRI_PLACES=170, PETRI_TRANSITIONS=217} [2023-08-25 06:34:13,266 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 86 predicate places. [2023-08-25 06:34:13,266 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 217 transitions, 2591 flow [2023-08-25 06:34:13,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 170.05263157894737) internal successors, (3231), 19 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:13,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:13,267 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:13,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:13,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:13,467 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:13,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:13,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1719665012, now seen corresponding path program 14 times [2023-08-25 06:34:13,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:13,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411924483] [2023-08-25 06:34:13,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:13,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:13,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:13,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:13,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411924483] [2023-08-25 06:34:13,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411924483] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:13,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583000247] [2023-08-25 06:34:13,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:34:13,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:13,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:13,649 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:13,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-25 06:34:13,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:34:13,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:13,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:13,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:14,088 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:14,089 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:14,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583000247] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:14,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:14,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2023-08-25 06:34:14,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888631831] [2023-08-25 06:34:14,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:14,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 06:34:14,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 06:34:14,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-08-25 06:34:14,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:14,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 217 transitions, 2591 flow. Second operand has 20 states, 20 states have (on average 170.15) internal successors, (3403), 20 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:14,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:14,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:14,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:15,402 INFO L124 PetriNetUnfolderBase]: 1885/3976 cut-off events. [2023-08-25 06:34:15,402 INFO L125 PetriNetUnfolderBase]: For 44245/44545 co-relation queries the response was YES. [2023-08-25 06:34:15,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21143 conditions, 3976 events. 1885/3976 cut-off events. For 44245/44545 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 29470 event pairs, 498 based on Foata normal form. 140/4013 useless extension candidates. Maximal degree in co-relation 21078. Up to 1992 conditions per place. [2023-08-25 06:34:15,503 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 253 selfloop transitions, 72 changer transitions 0/354 dead transitions. [2023-08-25 06:34:15,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 354 transitions, 4525 flow [2023-08-25 06:34:15,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-25 06:34:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-25 06:34:15,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2635 transitions. [2023-08-25 06:34:15,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.376967095851216 [2023-08-25 06:34:15,506 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2635 transitions. [2023-08-25 06:34:15,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2635 transitions. [2023-08-25 06:34:15,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:15,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2635 transitions. [2023-08-25 06:34:15,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 175.66666666666666) internal successors, (2635), 15 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:15,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:15,513 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 466.0) internal successors, (7456), 16 states have internal predecessors, (7456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:15,513 INFO L175 Difference]: Start difference. First operand has 170 places, 217 transitions, 2591 flow. Second operand 15 states and 2635 transitions. [2023-08-25 06:34:15,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 354 transitions, 4525 flow [2023-08-25 06:34:15,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 354 transitions, 4458 flow, removed 30 selfloop flow, removed 4 redundant places. [2023-08-25 06:34:15,621 INFO L231 Difference]: Finished difference. Result has 183 places, 234 transitions, 2967 flow [2023-08-25 06:34:15,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2524, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2967, PETRI_PLACES=183, PETRI_TRANSITIONS=234} [2023-08-25 06:34:15,622 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 99 predicate places. [2023-08-25 06:34:15,622 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 234 transitions, 2967 flow [2023-08-25 06:34:15,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 170.15) internal successors, (3403), 20 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:15,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:15,623 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:15,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:15,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-25 06:34:15,824 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:15,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash 574836690, now seen corresponding path program 15 times [2023-08-25 06:34:15,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:15,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205885217] [2023-08-25 06:34:15,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:15,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205885217] [2023-08-25 06:34:15,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205885217] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:15,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459916725] [2023-08-25 06:34:15,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 06:34:15,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:15,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:16,001 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:16,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-25 06:34:16,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 06:34:16,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:16,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:16,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:16,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:16,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:16,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459916725] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:16,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:16,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2023-08-25 06:34:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950477070] [2023-08-25 06:34:16,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:16,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 06:34:16,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:16,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 06:34:16,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-08-25 06:34:16,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:16,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 234 transitions, 2967 flow. Second operand has 21 states, 21 states have (on average 170.38095238095238) internal successors, (3578), 21 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:16,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:16,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:16,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:17,653 INFO L124 PetriNetUnfolderBase]: 1853/3920 cut-off events. [2023-08-25 06:34:17,653 INFO L125 PetriNetUnfolderBase]: For 51617/52021 co-relation queries the response was YES. [2023-08-25 06:34:17,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21891 conditions, 3920 events. 1853/3920 cut-off events. For 51617/52021 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 29193 event pairs, 524 based on Foata normal form. 193/3995 useless extension candidates. Maximal degree in co-relation 21823. Up to 1992 conditions per place. [2023-08-25 06:34:17,690 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 210 selfloop transitions, 70 changer transitions 0/309 dead transitions. [2023-08-25 06:34:17,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 309 transitions, 4182 flow [2023-08-25 06:34:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 06:34:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 06:34:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2102 transitions. [2023-08-25 06:34:17,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3758941344778255 [2023-08-25 06:34:17,693 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2102 transitions. [2023-08-25 06:34:17,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2102 transitions. [2023-08-25 06:34:17,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:17,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2102 transitions. [2023-08-25 06:34:17,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 175.16666666666666) internal successors, (2102), 12 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:17,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 466.0) internal successors, (6058), 13 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:17,700 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 466.0) internal successors, (6058), 13 states have internal predecessors, (6058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:17,700 INFO L175 Difference]: Start difference. First operand has 183 places, 234 transitions, 2967 flow. Second operand 12 states and 2102 transitions. [2023-08-25 06:34:17,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 309 transitions, 4182 flow [2023-08-25 06:34:17,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 309 transitions, 4025 flow, removed 42 selfloop flow, removed 7 redundant places. [2023-08-25 06:34:17,856 INFO L231 Difference]: Finished difference. Result has 186 places, 233 transitions, 2929 flow [2023-08-25 06:34:17,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2789, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2929, PETRI_PLACES=186, PETRI_TRANSITIONS=233} [2023-08-25 06:34:17,856 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 102 predicate places. [2023-08-25 06:34:17,856 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 233 transitions, 2929 flow [2023-08-25 06:34:17,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 170.38095238095238) internal successors, (3578), 21 states have internal predecessors, (3578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:17,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:17,857 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:17,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:18,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:18,058 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:18,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1323719204, now seen corresponding path program 16 times [2023-08-25 06:34:18,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:18,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983705010] [2023-08-25 06:34:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:18,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983705010] [2023-08-25 06:34:18,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983705010] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:18,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53656049] [2023-08-25 06:34:18,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 06:34:18,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:18,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:18,229 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:18,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-25 06:34:18,454 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 06:34:18,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:18,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 06:34:18,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:18,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:18,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:18,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 06:34:18,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53656049] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:18,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:18,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 17 [2023-08-25 06:34:18,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690708167] [2023-08-25 06:34:18,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:18,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 06:34:18,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:18,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 06:34:18,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-08-25 06:34:18,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 466 [2023-08-25 06:34:18,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 233 transitions, 2929 flow. Second operand has 17 states, 17 states have (on average 166.88235294117646) internal successors, (2837), 17 states have internal predecessors, (2837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:18,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:18,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 466 [2023-08-25 06:34:18,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:20,095 INFO L124 PetriNetUnfolderBase]: 2426/4901 cut-off events. [2023-08-25 06:34:20,096 INFO L125 PetriNetUnfolderBase]: For 70225/70580 co-relation queries the response was YES. [2023-08-25 06:34:20,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28583 conditions, 4901 events. 2426/4901 cut-off events. For 70225/70580 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 36069 event pairs, 166 based on Foata normal form. 113/4953 useless extension candidates. Maximal degree in co-relation 28515. Up to 1215 conditions per place. [2023-08-25 06:34:20,148 INFO L140 encePairwiseOnDemand]: 454/466 looper letters, 203 selfloop transitions, 189 changer transitions 0/410 dead transitions. [2023-08-25 06:34:20,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 410 transitions, 6018 flow [2023-08-25 06:34:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 06:34:20,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 06:34:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3425 transitions. [2023-08-25 06:34:20,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3674892703862661 [2023-08-25 06:34:20,151 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3425 transitions. [2023-08-25 06:34:20,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3425 transitions. [2023-08-25 06:34:20,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:20,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3425 transitions. [2023-08-25 06:34:20,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 171.25) internal successors, (3425), 20 states have internal predecessors, (3425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:20,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 466.0) internal successors, (9786), 21 states have internal predecessors, (9786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:20,161 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 466.0) internal successors, (9786), 21 states have internal predecessors, (9786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:20,161 INFO L175 Difference]: Start difference. First operand has 186 places, 233 transitions, 2929 flow. Second operand 20 states and 3425 transitions. [2023-08-25 06:34:20,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 410 transitions, 6018 flow [2023-08-25 06:34:20,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 410 transitions, 5768 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-25 06:34:20,319 INFO L231 Difference]: Finished difference. Result has 203 places, 290 transitions, 4193 flow [2023-08-25 06:34:20,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=2789, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4193, PETRI_PLACES=203, PETRI_TRANSITIONS=290} [2023-08-25 06:34:20,319 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 119 predicate places. [2023-08-25 06:34:20,319 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 290 transitions, 4193 flow [2023-08-25 06:34:20,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 166.88235294117646) internal successors, (2837), 17 states have internal predecessors, (2837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:20,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:20,320 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:20,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:20,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:20,521 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:20,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 876364340, now seen corresponding path program 17 times [2023-08-25 06:34:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:20,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886070441] [2023-08-25 06:34:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:20,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:20,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886070441] [2023-08-25 06:34:20,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886070441] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:20,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223636688] [2023-08-25 06:34:20,688 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 06:34:20,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:20,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:20,689 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:20,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-25 06:34:21,412 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-08-25 06:34:21,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:21,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:21,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:21,551 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:21,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223636688] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:21,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:21,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2023-08-25 06:34:21,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670178410] [2023-08-25 06:34:21,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:21,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 06:34:21,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 06:34:21,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2023-08-25 06:34:21,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:21,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 290 transitions, 4193 flow. Second operand has 20 states, 20 states have (on average 170.05) internal successors, (3401), 20 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:21,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:21,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:21,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:23,190 INFO L124 PetriNetUnfolderBase]: 2737/5627 cut-off events. [2023-08-25 06:34:23,190 INFO L125 PetriNetUnfolderBase]: For 108852/109175 co-relation queries the response was YES. [2023-08-25 06:34:23,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35386 conditions, 5627 events. 2737/5627 cut-off events. For 108852/109175 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 43306 event pairs, 433 based on Foata normal form. 120/5645 useless extension candidates. Maximal degree in co-relation 35309. Up to 1618 conditions per place. [2023-08-25 06:34:23,254 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 268 selfloop transitions, 171 changer transitions 0/473 dead transitions. [2023-08-25 06:34:23,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 473 transitions, 7042 flow [2023-08-25 06:34:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-25 06:34:23,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-25 06:34:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3354 transitions. [2023-08-25 06:34:23,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.378811836458098 [2023-08-25 06:34:23,257 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3354 transitions. [2023-08-25 06:34:23,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3354 transitions. [2023-08-25 06:34:23,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:23,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3354 transitions. [2023-08-25 06:34:23,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 176.52631578947367) internal successors, (3354), 19 states have internal predecessors, (3354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:23,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 466.0) internal successors, (9320), 20 states have internal predecessors, (9320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:23,264 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 466.0) internal successors, (9320), 20 states have internal predecessors, (9320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:23,264 INFO L175 Difference]: Start difference. First operand has 203 places, 290 transitions, 4193 flow. Second operand 19 states and 3354 transitions. [2023-08-25 06:34:23,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 473 transitions, 7042 flow [2023-08-25 06:34:23,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 473 transitions, 6663 flow, removed 165 selfloop flow, removed 5 redundant places. [2023-08-25 06:34:23,608 INFO L231 Difference]: Finished difference. Result has 219 places, 324 transitions, 5063 flow [2023-08-25 06:34:23,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=3946, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5063, PETRI_PLACES=219, PETRI_TRANSITIONS=324} [2023-08-25 06:34:23,608 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 135 predicate places. [2023-08-25 06:34:23,608 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 324 transitions, 5063 flow [2023-08-25 06:34:23,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 170.05) internal successors, (3401), 20 states have internal predecessors, (3401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:23,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:23,609 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:23,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:23,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:23,810 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:23,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 567774022, now seen corresponding path program 18 times [2023-08-25 06:34:23,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:23,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894416621] [2023-08-25 06:34:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:23,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:23,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:23,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:23,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894416621] [2023-08-25 06:34:23,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894416621] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:23,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99421423] [2023-08-25 06:34:23,977 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 06:34:23,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:23,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:23,981 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:24,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-08-25 06:34:24,470 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 06:34:24,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:24,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 10 conjunts are in the unsatisfiable core [2023-08-25 06:34:24,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:24,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-08-25 06:34:24,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99421423] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 06:34:24,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 06:34:24,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2023-08-25 06:34:24,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706849831] [2023-08-25 06:34:24,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 06:34:24,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 06:34:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 06:34:24,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 06:34:24,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-08-25 06:34:24,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 466 [2023-08-25 06:34:24,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 324 transitions, 5063 flow. Second operand has 21 states, 21 states have (on average 169.9047619047619) internal successors, (3568), 21 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:24,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 06:34:24,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 466 [2023-08-25 06:34:24,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 06:34:26,370 INFO L124 PetriNetUnfolderBase]: 2705/5553 cut-off events. [2023-08-25 06:34:26,371 INFO L125 PetriNetUnfolderBase]: For 112196/112553 co-relation queries the response was YES. [2023-08-25 06:34:26,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35917 conditions, 5553 events. 2705/5553 cut-off events. For 112196/112553 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 42632 event pairs, 432 based on Foata normal form. 136/5586 useless extension candidates. Maximal degree in co-relation 35837. Up to 1618 conditions per place. [2023-08-25 06:34:26,439 INFO L140 encePairwiseOnDemand]: 457/466 looper letters, 244 selfloop transitions, 169 changer transitions 0/446 dead transitions. [2023-08-25 06:34:26,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 446 transitions, 6861 flow [2023-08-25 06:34:26,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 06:34:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 06:34:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2998 transitions. [2023-08-25 06:34:26,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37843978793234034 [2023-08-25 06:34:26,442 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2998 transitions. [2023-08-25 06:34:26,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2998 transitions. [2023-08-25 06:34:26,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 06:34:26,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2998 transitions. [2023-08-25 06:34:26,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 176.35294117647058) internal successors, (2998), 17 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:26,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:26,450 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 466.0) internal successors, (8388), 18 states have internal predecessors, (8388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:26,450 INFO L175 Difference]: Start difference. First operand has 219 places, 324 transitions, 5063 flow. Second operand 17 states and 2998 transitions. [2023-08-25 06:34:26,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 446 transitions, 6861 flow [2023-08-25 06:34:26,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 446 transitions, 6497 flow, removed 160 selfloop flow, removed 6 redundant places. [2023-08-25 06:34:26,858 INFO L231 Difference]: Finished difference. Result has 228 places, 319 transitions, 4946 flow [2023-08-25 06:34:26,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=4608, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4946, PETRI_PLACES=228, PETRI_TRANSITIONS=319} [2023-08-25 06:34:26,859 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 144 predicate places. [2023-08-25 06:34:26,859 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 319 transitions, 4946 flow [2023-08-25 06:34:26,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 169.9047619047619) internal successors, (3568), 21 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 06:34:26,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 06:34:26,860 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:34:26,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-08-25 06:34:27,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-08-25 06:34:27,067 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-25 06:34:27,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 06:34:27,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1743392997, now seen corresponding path program 2 times [2023-08-25 06:34:27,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 06:34:27,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426993364] [2023-08-25 06:34:27,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 06:34:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 06:34:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 06:34:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:34:29,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 06:34:29,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426993364] [2023-08-25 06:34:29,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426993364] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 06:34:29,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108496575] [2023-08-25 06:34:29,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 06:34:29,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 06:34:29,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 06:34:29,401 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 06:34:29,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-08-25 06:34:29,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 06:34:29,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 06:34:29,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 40 conjunts are in the unsatisfiable core [2023-08-25 06:34:29,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 06:34:30,079 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 06:34:30,086 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 06:34:30,215 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 67 [2023-08-25 06:34:30,293 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 8 treesize of output 1 [2023-08-25 06:34:30,300 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:30,300 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:34:30,313 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:30,314 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:34:30,322 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 8 treesize of output 1 [2023-08-25 06:34:32,117 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:32,117 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 113 [2023-08-25 06:34:32,124 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 55 [2023-08-25 06:34:32,672 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 06:34:32,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 06:34:32,725 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:32,725 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 91 [2023-08-25 06:34:32,748 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:32,748 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 06:34:34,989 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:34,989 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 457 treesize of output 653 [2023-08-25 06:34:35,066 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 06:34:35,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 67 [2023-08-25 06:35:01,921 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-08-25 06:35:32,779 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-08-25 06:38:22,359 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-08-25 06:39:30,873 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-08-25 06:41:23,329 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-08-25 06:45:17,350 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. Received shutdown request... [2023-08-25 06:46:22,621 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 06:46:22,637 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 06:46:22,663 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-25 06:46:22,666 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONASSERT (60 of 61 remaining) [2023-08-25 06:46:22,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-08-25 06:46:22,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-08-25 06:46:22,867 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2023-08-25 06:46:22,869 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2023-08-25 06:46:22,870 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2023-08-25 06:46:22,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2023-08-25 06:46:22,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2023-08-25 06:46:22,873 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2023-08-25 06:46:22,874 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2023-08-25 06:46:22,875 INFO L445 BasicCegarLoop]: Path program histogram: [18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 06:46:22,879 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 06:46:22,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 06:46:22,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 06:46:22 BasicIcfg [2023-08-25 06:46:22,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 06:46:22,882 INFO L158 Benchmark]: Toolchain (without parser) took 833763.49ms. Allocated memory was 339.7MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 315.8MB in the beginning and 3.2GB in the end (delta: -2.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.0GB. [2023-08-25 06:46:22,882 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 339.7MB. Free memory was 317.4MB in the beginning and 317.3MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 06:46:22,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.50ms. Allocated memory is still 339.7MB. Free memory was 315.8MB in the beginning and 303.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 06:46:22,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.04ms. Allocated memory is still 339.7MB. Free memory was 303.7MB in the beginning and 301.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 06:46:22,883 INFO L158 Benchmark]: Boogie Preprocessor took 57.56ms. Allocated memory is still 339.7MB. Free memory was 301.1MB in the beginning and 299.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 06:46:22,896 INFO L158 Benchmark]: RCFGBuilder took 765.35ms. Allocated memory is still 339.7MB. Free memory was 299.0MB in the beginning and 243.7MB in the end (delta: 55.3MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-08-25 06:46:22,899 INFO L158 Benchmark]: TraceAbstraction took 832569.15ms. Allocated memory was 339.7MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 242.9MB in the beginning and 3.2GB in the end (delta: -2.9GB). Peak memory consumption was 4.1GB. Max. memory is 16.0GB. [2023-08-25 06:46:22,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 339.7MB. Free memory was 317.4MB in the beginning and 317.3MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 313.50ms. Allocated memory is still 339.7MB. Free memory was 315.8MB in the beginning and 303.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.04ms. Allocated memory is still 339.7MB. Free memory was 303.7MB in the beginning and 301.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 57.56ms. Allocated memory is still 339.7MB. Free memory was 301.1MB in the beginning and 299.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 765.35ms. Allocated memory is still 339.7MB. Free memory was 299.0MB in the beginning and 243.7MB in the end (delta: 55.3MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * TraceAbstraction took 832569.15ms. Allocated memory was 339.7MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 242.9MB in the beginning and 3.2GB in the end (delta: -2.9GB). Peak memory consumption was 4.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3s, 226 PlacesBefore, 84 PlacesAfterwards, 229 TransitionsBefore, 81 TransitionsAfterwards, 5682 CoEnabledTransitionPairs, 8 FixpointIterations, 136 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 9 ConcurrentYvCompositions, 6 ChoiceCompositions, 223 TotalNumberOfCompositions, 36820 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12557, independent: 11730, independent conditional: 0, independent unconditional: 11730, dependent: 827, dependent conditional: 0, dependent unconditional: 827, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2797, independent: 2692, independent conditional: 0, independent unconditional: 2692, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12557, independent: 9038, independent conditional: 0, independent unconditional: 9038, dependent: 722, dependent conditional: 0, dependent unconditional: 722, unknown: 2797, unknown conditional: 0, unknown unconditional: 2797] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 577, Positive conditional cache size: 0, Positive unconditional cache size: 577, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 89]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 51 with TraceHistMax 3,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 66ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 294 locations, 61 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 832.4s, OverallIterations: 29, TraceHistogramMax: 3, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 67.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.5s, HoareTripleCheckerStatistics: 44 mSolverCounterUnknown, 2963 SdHoareTripleChecker+Valid, 14.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2963 mSDsluCounter, 1833 SdHoareTripleChecker+Invalid, 13.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 154 IncrementalHoareTripleChecker+Unchecked, 1603 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12695 IncrementalHoareTripleChecker+Invalid, 13040 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 230 mSDtfsCounter, 12695 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2043 GetRequests, 1493 SyntacticMatches, 32 SemanticMatches, 518 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3286 ImplicationChecksByTransitivity, 41.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5136occurred in iteration=19, InterpolantAutomatonStates: 310, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 28.3s InterpolantComputationTime, 1893 NumberOfCodeBlocks, 1876 NumberOfCodeBlocksAsserted, 66 NumberOfCheckSat, 2702 ConstructedInterpolants, 40 QuantifiedInterpolants, 28471 SizeOfPredicates, 246 NumberOfNonLiveVariables, 7771 ConjunctsInSsa, 362 ConjunctsInUnsatCore, 68 InterpolantComputations, 9 PerfectInterpolantSequences, 242/487 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown