/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:31:05,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:31:05,956 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 21:31:05,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:31:05,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:31:05,994 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:31:05,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:31:06,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:31:06,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:31:06,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:31:06,004 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:31:06,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:31:06,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:31:06,006 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:31:06,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:31:06,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:31:06,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:31:06,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:31:06,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:31:06,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:31:06,008 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:31:06,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:31:06,009 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:31:06,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:31:06,009 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:31:06,010 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:31:06,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:31:06,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:31:06,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:31:06,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:31:06,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:31:06,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:31:06,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:31:06,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:31:06,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:31:06,013 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:31:06,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:31:06,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:31:06,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:31:06,361 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:31:06,361 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:31:06,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c [2023-08-25 21:31:07,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:31:07,807 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:31:07,807 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c [2023-08-25 21:31:07,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2452133/5bae7ff0fed94d92b2794c26c8d082ed/FLAG0933e5ff6 [2023-08-25 21:31:07,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2452133/5bae7ff0fed94d92b2794c26c8d082ed [2023-08-25 21:31:07,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:31:07,837 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:31:07,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:31:07,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:31:07,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:31:07,844 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:31:07" (1/1) ... [2023-08-25 21:31:07,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd741f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:07, skipping insertion in model container [2023-08-25 21:31:07,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:31:07" (1/1) ... [2023-08-25 21:31:07,869 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:31:08,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:31:08,077 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:31:08,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:31:08,132 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:31:08,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08 WrapperNode [2023-08-25 21:31:08,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:31:08,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:31:08,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:31:08,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:31:08,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,190 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 285 [2023-08-25 21:31:08,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:31:08,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:31:08,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:31:08,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:31:08,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:31:08,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:31:08,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:31:08,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:31:08,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (1/1) ... [2023-08-25 21:31:08,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:31:08,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:31:08,270 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 21:31:08,277 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 21:31:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:31:08,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 21:31:08,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 21:31:08,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 21:31:08,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:31:08,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:31:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:31:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:31:08,300 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 21:31:08,389 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:31:08,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:31:08,943 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:31:08,953 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:31:08,953 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 21:31:08,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:31:08 BoogieIcfgContainer [2023-08-25 21:31:08,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:31:08,957 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:31:08,957 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:31:08,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:31:08,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:31:07" (1/3) ... [2023-08-25 21:31:08,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ee26e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:31:08, skipping insertion in model container [2023-08-25 21:31:08,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:31:08" (2/3) ... [2023-08-25 21:31:08,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ee26e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:31:08, skipping insertion in model container [2023-08-25 21:31:08,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:31:08" (3/3) ... [2023-08-25 21:31:08,962 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2023-08-25 21:31:08,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:31:08,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-08-25 21:31:08,978 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:31:09,071 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 21:31:09,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 336 places, 348 transitions, 712 flow [2023-08-25 21:31:09,249 INFO L124 PetriNetUnfolderBase]: 19/346 cut-off events. [2023-08-25 21:31:09,249 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:31:09,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 346 events. 19/346 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 529 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 21:31:09,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 336 places, 348 transitions, 712 flow [2023-08-25 21:31:09,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 337 transitions, 686 flow [2023-08-25 21:31:09,275 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:31:09,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 337 transitions, 686 flow [2023-08-25 21:31:09,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 337 transitions, 686 flow [2023-08-25 21:31:09,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 337 transitions, 686 flow [2023-08-25 21:31:09,360 INFO L124 PetriNetUnfolderBase]: 19/337 cut-off events. [2023-08-25 21:31:09,360 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:31:09,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 337 events. 19/337 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 495 event pairs, 0 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2023-08-25 21:31:09,372 INFO L119 LiptonReduction]: Number of co-enabled transitions 20880 [2023-08-25 21:31:16,546 INFO L134 LiptonReduction]: Checked pairs total: 82965 [2023-08-25 21:31:16,546 INFO L136 LiptonReduction]: Total number of compositions: 351 [2023-08-25 21:31:16,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:31:16,564 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;@d457e5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:31:16,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2023-08-25 21:31:16,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:31:16,566 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 21:31:16,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:31:16,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:16,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 21:31:16,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:16,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1329, now seen corresponding path program 1 times [2023-08-25 21:31:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365506006] [2023-08-25 21:31:16,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:16,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:31:16,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:16,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365506006] [2023-08-25 21:31:16,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365506006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 21:31:16,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347419063] [2023-08-25 21:31:16,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:16,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 21:31:16,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 21:31:16,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 21:31:16,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 699 [2023-08-25 21:31:16,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 234 flow. Second operand has 2 states, 2 states have (on average 331.5) internal successors, (663), 2 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:16,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:16,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 699 [2023-08-25 21:31:16,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:16,949 INFO L124 PetriNetUnfolderBase]: 821/1872 cut-off events. [2023-08-25 21:31:16,949 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-08-25 21:31:16,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3176 conditions, 1872 events. 821/1872 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 11809 event pairs, 554 based on Foata normal form. 217/1779 useless extension candidates. Maximal degree in co-relation 2873. Up to 1259 conditions per place. [2023-08-25 21:31:16,963 INFO L140 encePairwiseOnDemand]: 671/699 looper letters, 42 selfloop transitions, 0 changer transitions 0/83 dead transitions. [2023-08-25 21:31:16,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 262 flow [2023-08-25 21:31:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 21:31:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 21:31:16,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 732 transitions. [2023-08-25 21:31:16,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5236051502145923 [2023-08-25 21:31:16,978 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 732 transitions. [2023-08-25 21:31:16,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 732 transitions. [2023-08-25 21:31:16,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:16,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 732 transitions. [2023-08-25 21:31:16,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 366.0) internal successors, (732), 2 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:16,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:16,994 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:16,996 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 234 flow. Second operand 2 states and 732 transitions. [2023-08-25 21:31:16,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 262 flow [2023-08-25 21:31:17,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:31:17,002 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 170 flow [2023-08-25 21:31:17,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=170, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-08-25 21:31:17,006 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -28 predicate places. [2023-08-25 21:31:17,006 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 170 flow [2023-08-25 21:31:17,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 331.5) internal successors, (663), 2 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:17,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 21:31:17,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:31:17,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:17,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1294037276, now seen corresponding path program 1 times [2023-08-25 21:31:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:17,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79772385] [2023-08-25 21:31:17,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:17,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:17,112 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 21:31:17,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:17,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79772385] [2023-08-25 21:31:17,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79772385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:17,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809809224] [2023-08-25 21:31:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:17,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:17,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 699 [2023-08-25 21:31:17,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:17,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 699 [2023-08-25 21:31:17,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:17,331 INFO L124 PetriNetUnfolderBase]: 809/1879 cut-off events. [2023-08-25 21:31:17,332 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-25 21:31:17,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 1879 events. 809/1879 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 11529 event pairs, 650 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 3204. Up to 1312 conditions per place. [2023-08-25 21:31:17,343 INFO L140 encePairwiseOnDemand]: 696/699 looper letters, 43 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2023-08-25 21:31:17,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 81 transitions, 254 flow [2023-08-25 21:31:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:17,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2023-08-25 21:31:17,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4783023366714354 [2023-08-25 21:31:17,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1003 transitions. [2023-08-25 21:31:17,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1003 transitions. [2023-08-25 21:31:17,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:17,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1003 transitions. [2023-08-25 21:31:17,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:17,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:17,358 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 170 flow. Second operand 3 states and 1003 transitions. [2023-08-25 21:31:17,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 81 transitions, 254 flow [2023-08-25 21:31:17,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:31:17,361 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 168 flow [2023-08-25 21:31:17,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2023-08-25 21:31:17,362 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -28 predicate places. [2023-08-25 21:31:17,363 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 168 flow [2023-08-25 21:31:17,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:17,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:17,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:31:17,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:17,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1970218383, now seen corresponding path program 1 times [2023-08-25 21:31:17,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:17,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963402979] [2023-08-25 21:31:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:17,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:17,471 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 21:31:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:17,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963402979] [2023-08-25 21:31:17,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963402979] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:17,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:17,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:17,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908276195] [2023-08-25 21:31:17,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:17,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:17,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:17,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:17,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 699 [2023-08-25 21:31:17,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:17,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 699 [2023-08-25 21:31:17,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:17,660 INFO L124 PetriNetUnfolderBase]: 821/1773 cut-off events. [2023-08-25 21:31:17,660 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2023-08-25 21:31:17,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3046 conditions, 1773 events. 821/1773 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 10687 event pairs, 554 based on Foata normal form. 0/1464 useless extension candidates. Maximal degree in co-relation 3042. Up to 1258 conditions per place. [2023-08-25 21:31:17,671 INFO L140 encePairwiseOnDemand]: 694/699 looper letters, 41 selfloop transitions, 1 changer transitions 0/77 dead transitions. [2023-08-25 21:31:17,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 77 transitions, 244 flow [2023-08-25 21:31:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:17,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:17,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-25 21:31:17,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46542680019074867 [2023-08-25 21:31:17,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-25 21:31:17,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-25 21:31:17,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:17,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-25 21:31:17,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:17,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:17,683 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 168 flow. Second operand 3 states and 976 transitions. [2023-08-25 21:31:17,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 77 transitions, 244 flow [2023-08-25 21:31:17,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 243 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:17,685 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 161 flow [2023-08-25 21:31:17,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2023-08-25 21:31:17,687 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -31 predicate places. [2023-08-25 21:31:17,687 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 161 flow [2023-08-25 21:31:17,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:17,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:17,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:31:17,692 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:17,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:17,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1970176494, now seen corresponding path program 1 times [2023-08-25 21:31:17,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:17,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626426768] [2023-08-25 21:31:17,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:17,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:17,777 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 21:31:17,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:17,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626426768] [2023-08-25 21:31:17,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626426768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:17,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000458108] [2023-08-25 21:31:17,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:17,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:17,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:17,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 699 [2023-08-25 21:31:17,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:17,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:17,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 699 [2023-08-25 21:31:17,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:18,182 INFO L124 PetriNetUnfolderBase]: 2032/3965 cut-off events. [2023-08-25 21:31:18,182 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-08-25 21:31:18,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7261 conditions, 3965 events. 2032/3965 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 25005 event pairs, 810 based on Foata normal form. 0/3401 useless extension candidates. Maximal degree in co-relation 7257. Up to 1704 conditions per place. [2023-08-25 21:31:18,206 INFO L140 encePairwiseOnDemand]: 696/699 looper letters, 87 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2023-08-25 21:31:18,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 119 transitions, 426 flow [2023-08-25 21:31:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:18,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:18,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2023-08-25 21:31:18,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49928469241773965 [2023-08-25 21:31:18,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2023-08-25 21:31:18,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2023-08-25 21:31:18,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:18,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2023-08-25 21:31:18,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:18,217 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:18,217 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 161 flow. Second operand 3 states and 1047 transitions. [2023-08-25 21:31:18,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 119 transitions, 426 flow [2023-08-25 21:31:18,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 119 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:18,220 INFO L231 Difference]: Finished difference. Result has 80 places, 78 transitions, 172 flow [2023-08-25 21:31:18,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=80, PETRI_TRANSITIONS=78} [2023-08-25 21:31:18,220 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -29 predicate places. [2023-08-25 21:31:18,221 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 78 transitions, 172 flow [2023-08-25 21:31:18,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.6666666666667) internal successors, (962), 3 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:18,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:18,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 21:31:18,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:18,222 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 701090199, now seen corresponding path program 1 times [2023-08-25 21:31:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:18,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677702226] [2023-08-25 21:31:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:18,268 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 21:31:18,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677702226] [2023-08-25 21:31:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677702226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:18,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:18,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:18,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85506381] [2023-08-25 21:31:18,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:18,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:18,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:18,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:18,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:18,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 699 [2023-08-25 21:31:18,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 78 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:18,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 699 [2023-08-25 21:31:18,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:18,593 INFO L124 PetriNetUnfolderBase]: 1370/2975 cut-off events. [2023-08-25 21:31:18,594 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2023-08-25 21:31:18,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5390 conditions, 2975 events. 1370/2975 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 19444 event pairs, 424 based on Foata normal form. 0/2643 useless extension candidates. Maximal degree in co-relation 5385. Up to 2055 conditions per place. [2023-08-25 21:31:18,607 INFO L140 encePairwiseOnDemand]: 693/699 looper letters, 59 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-08-25 21:31:18,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 325 flow [2023-08-25 21:31:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2023-08-25 21:31:18,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825941821649976 [2023-08-25 21:31:18,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2023-08-25 21:31:18,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2023-08-25 21:31:18,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:18,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2023-08-25 21:31:18,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:18,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:18,620 INFO L175 Difference]: Start difference. First operand has 80 places, 78 transitions, 172 flow. Second operand 3 states and 1012 transitions. [2023-08-25 21:31:18,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 325 flow [2023-08-25 21:31:18,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 92 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:18,624 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 176 flow [2023-08-25 21:31:18,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2023-08-25 21:31:18,627 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -31 predicate places. [2023-08-25 21:31:18,627 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 176 flow [2023-08-25 21:31:18,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:18,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:18,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 21:31:18,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:18,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash -17271172, now seen corresponding path program 1 times [2023-08-25 21:31:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:18,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706056554] [2023-08-25 21:31:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:18,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:18,700 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 21:31:18,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:18,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706056554] [2023-08-25 21:31:18,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706056554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:18,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:18,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:18,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654681955] [2023-08-25 21:31:18,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:18,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:18,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:18,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:18,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:18,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 699 [2023-08-25 21:31:18,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:18,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:18,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 699 [2023-08-25 21:31:18,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:18,985 INFO L124 PetriNetUnfolderBase]: 1370/2981 cut-off events. [2023-08-25 21:31:18,986 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2023-08-25 21:31:18,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5521 conditions, 2981 events. 1370/2981 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 19573 event pairs, 1073 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 5516. Up to 2215 conditions per place. [2023-08-25 21:31:19,005 INFO L140 encePairwiseOnDemand]: 696/699 looper letters, 44 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2023-08-25 21:31:19,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 77 transitions, 270 flow [2023-08-25 21:31:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:19,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2023-08-25 21:31:19,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4687649022412971 [2023-08-25 21:31:19,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2023-08-25 21:31:19,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2023-08-25 21:31:19,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:19,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2023-08-25 21:31:19,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:19,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:19,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:19,016 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 176 flow. Second operand 3 states and 983 transitions. [2023-08-25 21:31:19,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 77 transitions, 270 flow [2023-08-25 21:31:19,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:31:19,018 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 188 flow [2023-08-25 21:31:19,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2023-08-25 21:31:19,021 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -28 predicate places. [2023-08-25 21:31:19,021 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 188 flow [2023-08-25 21:31:19,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:19,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:19,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:19,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 21:31:19,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:19,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:19,023 INFO L85 PathProgramCache]: Analyzing trace with hash 726586604, now seen corresponding path program 1 times [2023-08-25 21:31:19,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:19,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118620832] [2023-08-25 21:31:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:19,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:19,342 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 21:31:19,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:19,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118620832] [2023-08-25 21:31:19,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118620832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:19,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:19,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:19,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593429627] [2023-08-25 21:31:19,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:19,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:31:19,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:19,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:31:19,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:31:19,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 699 [2023-08-25 21:31:19,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 284.8333333333333) internal successors, (1709), 6 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:19,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:19,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 699 [2023-08-25 21:31:19,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:21,096 INFO L124 PetriNetUnfolderBase]: 11045/16913 cut-off events. [2023-08-25 21:31:21,097 INFO L125 PetriNetUnfolderBase]: For 1171/1171 co-relation queries the response was YES. [2023-08-25 21:31:21,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35119 conditions, 16913 events. 11045/16913 cut-off events. For 1171/1171 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 107565 event pairs, 838 based on Foata normal form. 0/15056 useless extension candidates. Maximal degree in co-relation 35112. Up to 6567 conditions per place. [2023-08-25 21:31:21,206 INFO L140 encePairwiseOnDemand]: 694/699 looper letters, 272 selfloop transitions, 4 changer transitions 0/280 dead transitions. [2023-08-25 21:31:21,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 280 transitions, 1210 flow [2023-08-25 21:31:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:31:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:31:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1959 transitions. [2023-08-25 21:31:21,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4670958512160229 [2023-08-25 21:31:21,211 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1959 transitions. [2023-08-25 21:31:21,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1959 transitions. [2023-08-25 21:31:21,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:21,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1959 transitions. [2023-08-25 21:31:21,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.5) internal successors, (1959), 6 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,223 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 188 flow. Second operand 6 states and 1959 transitions. [2023-08-25 21:31:21,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 280 transitions, 1210 flow [2023-08-25 21:31:21,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 280 transitions, 1206 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:21,228 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 190 flow [2023-08-25 21:31:21,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2023-08-25 21:31:21,229 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -25 predicate places. [2023-08-25 21:31:21,229 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 190 flow [2023-08-25 21:31:21,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 284.8333333333333) internal successors, (1709), 6 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:21,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:21,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 21:31:21,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:21,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:21,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1614891725, now seen corresponding path program 1 times [2023-08-25 21:31:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475812761] [2023-08-25 21:31:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:21,273 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 21:31:21,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:21,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475812761] [2023-08-25 21:31:21,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475812761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:21,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:21,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:31:21,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108219577] [2023-08-25 21:31:21,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:21,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:21,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:21,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:21,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:21,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 699 [2023-08-25 21:31:21,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:21,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 699 [2023-08-25 21:31:21,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:21,794 INFO L124 PetriNetUnfolderBase]: 2484/4453 cut-off events. [2023-08-25 21:31:21,795 INFO L125 PetriNetUnfolderBase]: For 1227/1227 co-relation queries the response was YES. [2023-08-25 21:31:21,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9871 conditions, 4453 events. 2484/4453 cut-off events. For 1227/1227 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 25964 event pairs, 581 based on Foata normal form. 0/3950 useless extension candidates. Maximal degree in co-relation 9864. Up to 2993 conditions per place. [2023-08-25 21:31:21,819 INFO L140 encePairwiseOnDemand]: 696/699 looper letters, 83 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-08-25 21:31:21,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 428 flow [2023-08-25 21:31:21,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 978 transitions. [2023-08-25 21:31:21,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4663805436337625 [2023-08-25 21:31:21,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 978 transitions. [2023-08-25 21:31:21,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 978 transitions. [2023-08-25 21:31:21,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:21,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 978 transitions. [2023-08-25 21:31:21,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:21,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:21,828 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 190 flow. Second operand 3 states and 978 transitions. [2023-08-25 21:31:21,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 428 flow [2023-08-25 21:31:21,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 103 transitions, 419 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:31:21,832 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 195 flow [2023-08-25 21:31:21,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2023-08-25 21:31:21,833 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -26 predicate places. [2023-08-25 21:31:21,833 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 195 flow [2023-08-25 21:31:21,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:21,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:21,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:21,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 21:31:21,834 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:21,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -441568785, now seen corresponding path program 1 times [2023-08-25 21:31:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:21,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005863861] [2023-08-25 21:31:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:22,129 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 21:31:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005863861] [2023-08-25 21:31:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005863861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:22,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:22,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168468737] [2023-08-25 21:31:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:22,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:31:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:22,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:31:22,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:31:22,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 699 [2023-08-25 21:31:22,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 195 flow. Second operand has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:22,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:22,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 699 [2023-08-25 21:31:22,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:23,948 INFO L124 PetriNetUnfolderBase]: 12864/20025 cut-off events. [2023-08-25 21:31:23,948 INFO L125 PetriNetUnfolderBase]: For 1254/1254 co-relation queries the response was YES. [2023-08-25 21:31:24,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43343 conditions, 20025 events. 12864/20025 cut-off events. For 1254/1254 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 121600 event pairs, 7783 based on Foata normal form. 532/19141 useless extension candidates. Maximal degree in co-relation 43335. Up to 13764 conditions per place. [2023-08-25 21:31:24,063 INFO L140 encePairwiseOnDemand]: 693/699 looper letters, 234 selfloop transitions, 6 changer transitions 0/244 dead transitions. [2023-08-25 21:31:24,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 244 transitions, 1053 flow [2023-08-25 21:31:24,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:31:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:31:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1900 transitions. [2023-08-25 21:31:24,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4530281354315689 [2023-08-25 21:31:24,163 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1900 transitions. [2023-08-25 21:31:24,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1900 transitions. [2023-08-25 21:31:24,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:24,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1900 transitions. [2023-08-25 21:31:24,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.6666666666667) internal successors, (1900), 6 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:24,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:24,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:24,188 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 195 flow. Second operand 6 states and 1900 transitions. [2023-08-25 21:31:24,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 244 transitions, 1053 flow [2023-08-25 21:31:24,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 244 transitions, 1047 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:24,191 INFO L231 Difference]: Finished difference. Result has 86 places, 76 transitions, 203 flow [2023-08-25 21:31:24,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=86, PETRI_TRANSITIONS=76} [2023-08-25 21:31:24,192 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -23 predicate places. [2023-08-25 21:31:24,192 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 76 transitions, 203 flow [2023-08-25 21:31:24,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 280.5) internal successors, (1683), 6 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:24,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:24,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:24,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 21:31:24,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:24,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1397511601, now seen corresponding path program 1 times [2023-08-25 21:31:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:24,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680609172] [2023-08-25 21:31:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:24,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:24,526 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 21:31:24,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:24,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680609172] [2023-08-25 21:31:24,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680609172] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:24,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:24,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:24,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114711589] [2023-08-25 21:31:24,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:24,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:31:24,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:24,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:31:24,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:31:24,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 699 [2023-08-25 21:31:24,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 76 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:24,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:24,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 699 [2023-08-25 21:31:24,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:26,106 INFO L124 PetriNetUnfolderBase]: 11728/18305 cut-off events. [2023-08-25 21:31:26,107 INFO L125 PetriNetUnfolderBase]: For 3818/3818 co-relation queries the response was YES. [2023-08-25 21:31:26,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41901 conditions, 18305 events. 11728/18305 cut-off events. For 3818/3818 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 107727 event pairs, 6303 based on Foata normal form. 316/17577 useless extension candidates. Maximal degree in co-relation 41893. Up to 11036 conditions per place. [2023-08-25 21:31:26,175 INFO L140 encePairwiseOnDemand]: 680/699 looper letters, 156 selfloop transitions, 17 changer transitions 0/177 dead transitions. [2023-08-25 21:31:26,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 177 transitions, 839 flow [2023-08-25 21:31:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:31:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:31:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1799 transitions. [2023-08-25 21:31:26,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42894611349546974 [2023-08-25 21:31:26,180 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1799 transitions. [2023-08-25 21:31:26,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1799 transitions. [2023-08-25 21:31:26,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:26,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1799 transitions. [2023-08-25 21:31:26,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 299.8333333333333) internal successors, (1799), 6 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:26,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:26,190 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:26,190 INFO L175 Difference]: Start difference. First operand has 86 places, 76 transitions, 203 flow. Second operand 6 states and 1799 transitions. [2023-08-25 21:31:26,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 177 transitions, 839 flow [2023-08-25 21:31:26,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 177 transitions, 779 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:31:26,200 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 219 flow [2023-08-25 21:31:26,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2023-08-25 21:31:26,201 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -26 predicate places. [2023-08-25 21:31:26,202 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 219 flow [2023-08-25 21:31:26,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:26,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:26,202 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] [2023-08-25 21:31:26,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 21:31:26,203 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:26,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1629457788, now seen corresponding path program 1 times [2023-08-25 21:31:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:26,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889590463] [2023-08-25 21:31:26,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:26,466 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 21:31:26,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:26,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889590463] [2023-08-25 21:31:26,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889590463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:26,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:26,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:26,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545101028] [2023-08-25 21:31:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:26,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:31:26,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:26,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:31:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:31:26,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 283 out of 699 [2023-08-25 21:31:26,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:26,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:26,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 283 of 699 [2023-08-25 21:31:26,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:28,060 INFO L124 PetriNetUnfolderBase]: 11644/18129 cut-off events. [2023-08-25 21:31:28,060 INFO L125 PetriNetUnfolderBase]: For 1930/1930 co-relation queries the response was YES. [2023-08-25 21:31:28,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42406 conditions, 18129 events. 11644/18129 cut-off events. For 1930/1930 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 106500 event pairs, 10091 based on Foata normal form. 0/17171 useless extension candidates. Maximal degree in co-relation 42398. Up to 17116 conditions per place. [2023-08-25 21:31:28,149 INFO L140 encePairwiseOnDemand]: 694/699 looper letters, 196 selfloop transitions, 4 changer transitions 0/204 dead transitions. [2023-08-25 21:31:28,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 204 transitions, 1061 flow [2023-08-25 21:31:28,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:31:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:31:28,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1886 transitions. [2023-08-25 21:31:28,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4496900333810205 [2023-08-25 21:31:28,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1886 transitions. [2023-08-25 21:31:28,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1886 transitions. [2023-08-25 21:31:28,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:28,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1886 transitions. [2023-08-25 21:31:28,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 314.3333333333333) internal successors, (1886), 6 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,165 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 699.0) internal successors, (4893), 7 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,166 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 219 flow. Second operand 6 states and 1886 transitions. [2023-08-25 21:31:28,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 204 transitions, 1061 flow [2023-08-25 21:31:28,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 204 transitions, 891 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:31:28,180 INFO L231 Difference]: Finished difference. Result has 82 places, 72 transitions, 191 flow [2023-08-25 21:31:28,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=82, PETRI_TRANSITIONS=72} [2023-08-25 21:31:28,181 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -27 predicate places. [2023-08-25 21:31:28,181 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 72 transitions, 191 flow [2023-08-25 21:31:28,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 286.0) internal successors, (1716), 6 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:28,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:28,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 21:31:28,182 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:28,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash -500655133, now seen corresponding path program 1 times [2023-08-25 21:31:28,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038158553] [2023-08-25 21:31:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:28,332 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 21:31:28,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:28,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038158553] [2023-08-25 21:31:28,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038158553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:28,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:28,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 21:31:28,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42862802] [2023-08-25 21:31:28,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:28,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:28,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:28,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:28,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:28,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 699 [2023-08-25 21:31:28,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:28,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 699 [2023-08-25 21:31:28,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:28,808 INFO L124 PetriNetUnfolderBase]: 3276/5614 cut-off events. [2023-08-25 21:31:28,809 INFO L125 PetriNetUnfolderBase]: For 586/586 co-relation queries the response was YES. [2023-08-25 21:31:28,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11911 conditions, 5614 events. 3276/5614 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 30719 event pairs, 1077 based on Foata normal form. 1/5286 useless extension candidates. Maximal degree in co-relation 11903. Up to 4707 conditions per place. [2023-08-25 21:31:28,829 INFO L140 encePairwiseOnDemand]: 695/699 looper letters, 85 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2023-08-25 21:31:28,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 101 transitions, 440 flow [2023-08-25 21:31:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 949 transitions. [2023-08-25 21:31:28,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.452551263710062 [2023-08-25 21:31:28,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 949 transitions. [2023-08-25 21:31:28,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 949 transitions. [2023-08-25 21:31:28,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:28,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 949 transitions. [2023-08-25 21:31:28,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.3333333333333) internal successors, (949), 3 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:28,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:28,842 INFO L175 Difference]: Start difference. First operand has 82 places, 72 transitions, 191 flow. Second operand 3 states and 949 transitions. [2023-08-25 21:31:28,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 101 transitions, 440 flow [2023-08-25 21:31:28,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 101 transitions, 431 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:31:28,844 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 207 flow [2023-08-25 21:31:28,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2023-08-25 21:31:28,845 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -28 predicate places. [2023-08-25 21:31:28,846 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 207 flow [2023-08-25 21:31:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:28,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:28,846 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] [2023-08-25 21:31:28,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 21:31:28,847 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:28,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash -2011239524, now seen corresponding path program 1 times [2023-08-25 21:31:28,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:28,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170919642] [2023-08-25 21:31:28,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:28,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:29,049 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 21:31:29,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:29,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170919642] [2023-08-25 21:31:29,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170919642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:29,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:29,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:29,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247924588] [2023-08-25 21:31:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:29,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:31:29,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:31:29,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:31:29,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 699 [2023-08-25 21:31:29,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 74 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 318.4) internal successors, (1592), 5 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:29,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 699 [2023-08-25 21:31:29,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:29,477 INFO L124 PetriNetUnfolderBase]: 2079/4448 cut-off events. [2023-08-25 21:31:29,478 INFO L125 PetriNetUnfolderBase]: For 793/829 co-relation queries the response was YES. [2023-08-25 21:31:29,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8848 conditions, 4448 events. 2079/4448 cut-off events. For 793/829 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 29713 event pairs, 884 based on Foata normal form. 7/4174 useless extension candidates. Maximal degree in co-relation 8839. Up to 1583 conditions per place. [2023-08-25 21:31:29,547 INFO L140 encePairwiseOnDemand]: 690/699 looper letters, 131 selfloop transitions, 10 changer transitions 0/164 dead transitions. [2023-08-25 21:31:29,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 164 transitions, 733 flow [2023-08-25 21:31:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 21:31:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 21:31:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1700 transitions. [2023-08-25 21:31:29,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864091559370529 [2023-08-25 21:31:29,552 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1700 transitions. [2023-08-25 21:31:29,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1700 transitions. [2023-08-25 21:31:29,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:29,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1700 transitions. [2023-08-25 21:31:29,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 340.0) internal successors, (1700), 5 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 699.0) internal successors, (4194), 6 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,562 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 699.0) internal successors, (4194), 6 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,562 INFO L175 Difference]: Start difference. First operand has 81 places, 74 transitions, 207 flow. Second operand 5 states and 1700 transitions. [2023-08-25 21:31:29,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 164 transitions, 733 flow [2023-08-25 21:31:29,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 164 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:29,565 INFO L231 Difference]: Finished difference. Result has 87 places, 81 transitions, 277 flow [2023-08-25 21:31:29,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=277, PETRI_PLACES=87, PETRI_TRANSITIONS=81} [2023-08-25 21:31:29,566 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -22 predicate places. [2023-08-25 21:31:29,566 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 81 transitions, 277 flow [2023-08-25 21:31:29,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.4) internal successors, (1592), 5 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:29,567 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] [2023-08-25 21:31:29,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 21:31:29,567 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:29,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash -572775964, now seen corresponding path program 2 times [2023-08-25 21:31:29,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:29,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718309604] [2023-08-25 21:31:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:29,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:29,666 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 21:31:29,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:29,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718309604] [2023-08-25 21:31:29,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718309604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:29,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:29,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 21:31:29,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567681407] [2023-08-25 21:31:29,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:29,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:31:29,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:29,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:31:29,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:31:29,669 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 699 [2023-08-25 21:31:29,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 81 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 322.25) internal successors, (1289), 4 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:29,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:29,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 699 [2023-08-25 21:31:29,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:30,211 INFO L124 PetriNetUnfolderBase]: 2046/4290 cut-off events. [2023-08-25 21:31:30,211 INFO L125 PetriNetUnfolderBase]: For 1857/1915 co-relation queries the response was YES. [2023-08-25 21:31:30,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9458 conditions, 4290 events. 2046/4290 cut-off events. For 1857/1915 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 27901 event pairs, 1098 based on Foata normal form. 60/4247 useless extension candidates. Maximal degree in co-relation 9446. Up to 2314 conditions per place. [2023-08-25 21:31:30,241 INFO L140 encePairwiseOnDemand]: 694/699 looper letters, 91 selfloop transitions, 5 changer transitions 0/120 dead transitions. [2023-08-25 21:31:30,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 120 transitions, 611 flow [2023-08-25 21:31:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:31:30,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:31:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1346 transitions. [2023-08-25 21:31:30,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4814020028612303 [2023-08-25 21:31:30,248 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1346 transitions. [2023-08-25 21:31:30,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1346 transitions. [2023-08-25 21:31:30,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:30,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1346 transitions. [2023-08-25 21:31:30,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 336.5) internal successors, (1346), 4 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:30,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:30,259 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:30,259 INFO L175 Difference]: Start difference. First operand has 87 places, 81 transitions, 277 flow. Second operand 4 states and 1346 transitions. [2023-08-25 21:31:30,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 120 transitions, 611 flow [2023-08-25 21:31:30,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 120 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:31:30,264 INFO L231 Difference]: Finished difference. Result has 90 places, 83 transitions, 301 flow [2023-08-25 21:31:30,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=90, PETRI_TRANSITIONS=83} [2023-08-25 21:31:30,265 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -19 predicate places. [2023-08-25 21:31:30,265 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 83 transitions, 301 flow [2023-08-25 21:31:30,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 322.25) internal successors, (1289), 4 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:30,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:30,266 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] [2023-08-25 21:31:30,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 21:31:30,266 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:30,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1199996584, now seen corresponding path program 3 times [2023-08-25 21:31:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:30,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338390455] [2023-08-25 21:31:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:30,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:30,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338390455] [2023-08-25 21:31:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338390455] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:31:30,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908419787] [2023-08-25 21:31:30,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:31:30,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:31:30,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:31:30,473 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 21:31:30,493 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 21:31:30,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 21:31:30,617 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:31:30,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 21:31:30,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:31:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:30,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:31:30,893 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 21:31:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908419787] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 21:31:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 21:31:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 7 [2023-08-25 21:31:30,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098440241] [2023-08-25 21:31:30,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:30,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:31:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:30,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:31:30,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-08-25 21:31:30,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 699 [2023-08-25 21:31:30,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 83 transitions, 301 flow. Second operand has 4 states, 4 states have (on average 322.25) internal successors, (1289), 4 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:30,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:30,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 699 [2023-08-25 21:31:30,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:31,412 INFO L124 PetriNetUnfolderBase]: 2074/4330 cut-off events. [2023-08-25 21:31:31,413 INFO L125 PetriNetUnfolderBase]: For 2811/2865 co-relation queries the response was YES. [2023-08-25 21:31:31,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10040 conditions, 4330 events. 2074/4330 cut-off events. For 2811/2865 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 28188 event pairs, 415 based on Foata normal form. 68/4304 useless extension candidates. Maximal degree in co-relation 10026. Up to 1774 conditions per place. [2023-08-25 21:31:31,433 INFO L140 encePairwiseOnDemand]: 693/699 looper letters, 74 selfloop transitions, 12 changer transitions 2/112 dead transitions. [2023-08-25 21:31:31,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 112 transitions, 599 flow [2023-08-25 21:31:31,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:31:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:31:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1336 transitions. [2023-08-25 21:31:31,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47782546494992845 [2023-08-25 21:31:31,436 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1336 transitions. [2023-08-25 21:31:31,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1336 transitions. [2023-08-25 21:31:31,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:31,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1336 transitions. [2023-08-25 21:31:31,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 334.0) internal successors, (1336), 4 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:31,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:31,443 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:31,443 INFO L175 Difference]: Start difference. First operand has 90 places, 83 transitions, 301 flow. Second operand 4 states and 1336 transitions. [2023-08-25 21:31:31,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 112 transitions, 599 flow [2023-08-25 21:31:31,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 112 transitions, 590 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:31,447 INFO L231 Difference]: Finished difference. Result has 95 places, 88 transitions, 377 flow [2023-08-25 21:31:31,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=377, PETRI_PLACES=95, PETRI_TRANSITIONS=88} [2023-08-25 21:31:31,448 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -14 predicate places. [2023-08-25 21:31:31,448 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 88 transitions, 377 flow [2023-08-25 21:31:31,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 322.25) internal successors, (1289), 4 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:31,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:31,449 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] [2023-08-25 21:31:31,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 21:31:31,655 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,SelfDestructingSolverStorable14 [2023-08-25 21:31:31,655 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:31,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash 823966906, now seen corresponding path program 4 times [2023-08-25 21:31:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:31,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095014906] [2023-08-25 21:31:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:31,796 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 21:31:31,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:31,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095014906] [2023-08-25 21:31:31,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095014906] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:31,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:31:31,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849964177] [2023-08-25 21:31:31,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:31,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:31:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:31:31,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:31:31,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 699 [2023-08-25 21:31:31,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 88 transitions, 377 flow. Second operand has 5 states, 5 states have (on average 318.4) internal successors, (1592), 5 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:31,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:31,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 699 [2023-08-25 21:31:31,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:32,436 INFO L124 PetriNetUnfolderBase]: 2364/5083 cut-off events. [2023-08-25 21:31:32,437 INFO L125 PetriNetUnfolderBase]: For 5027/5085 co-relation queries the response was YES. [2023-08-25 21:31:32,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12269 conditions, 5083 events. 2364/5083 cut-off events. For 5027/5085 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 35140 event pairs, 1073 based on Foata normal form. 35/5032 useless extension candidates. Maximal degree in co-relation 12253. Up to 1739 conditions per place. [2023-08-25 21:31:32,455 INFO L140 encePairwiseOnDemand]: 692/699 looper letters, 125 selfloop transitions, 15 changer transitions 2/165 dead transitions. [2023-08-25 21:31:32,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 165 transitions, 968 flow [2023-08-25 21:31:32,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 21:31:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 21:31:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1685 transitions. [2023-08-25 21:31:32,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4821173104434907 [2023-08-25 21:31:32,459 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1685 transitions. [2023-08-25 21:31:32,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1685 transitions. [2023-08-25 21:31:32,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:32,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1685 transitions. [2023-08-25 21:31:32,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 337.0) internal successors, (1685), 5 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:32,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 699.0) internal successors, (4194), 6 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:32,468 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 699.0) internal successors, (4194), 6 states have internal predecessors, (4194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:32,468 INFO L175 Difference]: Start difference. First operand has 95 places, 88 transitions, 377 flow. Second operand 5 states and 1685 transitions. [2023-08-25 21:31:32,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 165 transitions, 968 flow [2023-08-25 21:31:32,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 165 transitions, 962 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-25 21:31:32,475 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 506 flow [2023-08-25 21:31:32,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=506, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2023-08-25 21:31:32,476 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -7 predicate places. [2023-08-25 21:31:32,476 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 506 flow [2023-08-25 21:31:32,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.4) internal successors, (1592), 5 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:32,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:32,476 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] [2023-08-25 21:31:32,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 21:31:32,477 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:32,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1577986340, now seen corresponding path program 5 times [2023-08-25 21:31:32,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:32,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933891607] [2023-08-25 21:31:32,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:32,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:32,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:32,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933891607] [2023-08-25 21:31:32,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933891607] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:31:32,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972722292] [2023-08-25 21:31:32,612 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 21:31:32,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:31:32,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:31:32,613 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 21:31:32,619 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 21:31:32,748 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 21:31:32,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:31:32,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-25 21:31:32,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:31:32,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:32,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:31:32,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:32,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972722292] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:31:32,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:31:32,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-08-25 21:31:32,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852047520] [2023-08-25 21:31:32,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:31:32,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 21:31:32,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 21:31:32,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-08-25 21:31:32,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 699 [2023-08-25 21:31:32,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 506 flow. Second operand has 9 states, 9 states have (on average 318.6666666666667) internal successors, (2868), 9 states have internal predecessors, (2868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:32,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:32,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 699 [2023-08-25 21:31:32,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:33,560 INFO L124 PetriNetUnfolderBase]: 2336/4972 cut-off events. [2023-08-25 21:31:33,560 INFO L125 PetriNetUnfolderBase]: For 6547/6585 co-relation queries the response was YES. [2023-08-25 21:31:33,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12437 conditions, 4972 events. 2336/4972 cut-off events. For 6547/6585 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 33064 event pairs, 951 based on Foata normal form. 68/4956 useless extension candidates. Maximal degree in co-relation 12417. Up to 1648 conditions per place. [2023-08-25 21:31:33,582 INFO L140 encePairwiseOnDemand]: 689/699 looper letters, 131 selfloop transitions, 28 changer transitions 4/186 dead transitions. [2023-08-25 21:31:33,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 186 transitions, 1203 flow [2023-08-25 21:31:33,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 21:31:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 21:31:33,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2645 transitions. [2023-08-25 21:31:33,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.472997138769671 [2023-08-25 21:31:33,589 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2645 transitions. [2023-08-25 21:31:33,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2645 transitions. [2023-08-25 21:31:33,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:33,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2645 transitions. [2023-08-25 21:31:33,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 330.625) internal successors, (2645), 8 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:33,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 699.0) internal successors, (6291), 9 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:33,601 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 699.0) internal successors, (6291), 9 states have internal predecessors, (6291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:33,601 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 506 flow. Second operand 8 states and 2645 transitions. [2023-08-25 21:31:33,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 186 transitions, 1203 flow [2023-08-25 21:31:33,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 186 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:33,610 INFO L231 Difference]: Finished difference. Result has 114 places, 107 transitions, 716 flow [2023-08-25 21:31:33,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=716, PETRI_PLACES=114, PETRI_TRANSITIONS=107} [2023-08-25 21:31:33,610 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 5 predicate places. [2023-08-25 21:31:33,610 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 107 transitions, 716 flow [2023-08-25 21:31:33,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 318.6666666666667) internal successors, (2868), 9 states have internal predecessors, (2868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:33,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:33,611 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:33,621 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 21:31:33,817 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,SelfDestructingSolverStorable16 [2023-08-25 21:31:33,818 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:33,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:33,818 INFO L85 PathProgramCache]: Analyzing trace with hash 873049667, now seen corresponding path program 1 times [2023-08-25 21:31:33,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042186840] [2023-08-25 21:31:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:33,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:33,994 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 21:31:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:33,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042186840] [2023-08-25 21:31:33,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042186840] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:33,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:33,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 21:31:33,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392913245] [2023-08-25 21:31:33,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:33,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:31:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:33,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:31:33,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:31:33,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 699 [2023-08-25 21:31:33,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 107 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 319.3333333333333) internal successors, (1916), 6 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:33,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:33,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 699 [2023-08-25 21:31:33,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:34,711 INFO L124 PetriNetUnfolderBase]: 2787/5804 cut-off events. [2023-08-25 21:31:34,711 INFO L125 PetriNetUnfolderBase]: For 12721/12765 co-relation queries the response was YES. [2023-08-25 21:31:34,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15742 conditions, 5804 events. 2787/5804 cut-off events. For 12721/12765 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 38842 event pairs, 584 based on Foata normal form. 57/5762 useless extension candidates. Maximal degree in co-relation 15717. Up to 2165 conditions per place. [2023-08-25 21:31:34,733 INFO L140 encePairwiseOnDemand]: 692/699 looper letters, 141 selfloop transitions, 20 changer transitions 0/184 dead transitions. [2023-08-25 21:31:34,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 184 transitions, 1356 flow [2023-08-25 21:31:34,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 21:31:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 21:31:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2325 transitions. [2023-08-25 21:31:34,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4751686082158185 [2023-08-25 21:31:34,738 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2325 transitions. [2023-08-25 21:31:34,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2325 transitions. [2023-08-25 21:31:34,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:34,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2325 transitions. [2023-08-25 21:31:34,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.14285714285717) internal successors, (2325), 7 states have internal predecessors, (2325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:34,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 699.0) internal successors, (5592), 8 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 21:31:34,749 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 699.0) internal successors, (5592), 8 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 21:31:34,749 INFO L175 Difference]: Start difference. First operand has 114 places, 107 transitions, 716 flow. Second operand 7 states and 2325 transitions. [2023-08-25 21:31:34,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 184 transitions, 1356 flow [2023-08-25 21:31:34,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 184 transitions, 1283 flow, removed 22 selfloop flow, removed 3 redundant places. [2023-08-25 21:31:34,764 INFO L231 Difference]: Finished difference. Result has 119 places, 112 transitions, 787 flow [2023-08-25 21:31:34,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=787, PETRI_PLACES=119, PETRI_TRANSITIONS=112} [2023-08-25 21:31:34,765 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2023-08-25 21:31:34,765 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 112 transitions, 787 flow [2023-08-25 21:31:34,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 319.3333333333333) internal successors, (1916), 6 states have internal predecessors, (1916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:34,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:34,766 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:34,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 21:31:34,766 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:34,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:34,766 INFO L85 PathProgramCache]: Analyzing trace with hash 901079593, now seen corresponding path program 2 times [2023-08-25 21:31:34,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:34,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392377684] [2023-08-25 21:31:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:34,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:34,863 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 21:31:34,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:34,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392377684] [2023-08-25 21:31:34,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392377684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:34,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:34,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 21:31:34,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017171290] [2023-08-25 21:31:34,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:34,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:31:34,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:34,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:31:34,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:31:34,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 699 [2023-08-25 21:31:34,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 112 transitions, 787 flow. Second operand has 4 states, 4 states have (on average 328.75) internal successors, (1315), 4 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:34,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:34,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 699 [2023-08-25 21:31:34,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:35,410 INFO L124 PetriNetUnfolderBase]: 2626/5423 cut-off events. [2023-08-25 21:31:35,411 INFO L125 PetriNetUnfolderBase]: For 11170/11245 co-relation queries the response was YES. [2023-08-25 21:31:35,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14521 conditions, 5423 events. 2626/5423 cut-off events. For 11170/11245 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 35128 event pairs, 1274 based on Foata normal form. 60/5378 useless extension candidates. Maximal degree in co-relation 14494. Up to 2551 conditions per place. [2023-08-25 21:31:35,439 INFO L140 encePairwiseOnDemand]: 695/699 looper letters, 103 selfloop transitions, 16 changer transitions 6/152 dead transitions. [2023-08-25 21:31:35,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 152 transitions, 1181 flow [2023-08-25 21:31:35,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:31:35,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:31:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1366 transitions. [2023-08-25 21:31:35,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.488555078683834 [2023-08-25 21:31:35,442 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1366 transitions. [2023-08-25 21:31:35,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1366 transitions. [2023-08-25 21:31:35,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:35,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1366 transitions. [2023-08-25 21:31:35,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 341.5) internal successors, (1366), 4 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:35,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:35,448 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 699.0) internal successors, (3495), 5 states have internal predecessors, (3495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:35,448 INFO L175 Difference]: Start difference. First operand has 119 places, 112 transitions, 787 flow. Second operand 4 states and 1366 transitions. [2023-08-25 21:31:35,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 152 transitions, 1181 flow [2023-08-25 21:31:35,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 152 transitions, 1137 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 21:31:35,464 INFO L231 Difference]: Finished difference. Result has 121 places, 112 transitions, 801 flow [2023-08-25 21:31:35,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=801, PETRI_PLACES=121, PETRI_TRANSITIONS=112} [2023-08-25 21:31:35,464 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 12 predicate places. [2023-08-25 21:31:35,465 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 112 transitions, 801 flow [2023-08-25 21:31:35,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 328.75) internal successors, (1315), 4 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:35,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:35,465 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:35,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 21:31:35,465 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:35,466 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -375260368, now seen corresponding path program 1 times [2023-08-25 21:31:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:35,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28624108] [2023-08-25 21:31:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:35,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 21:31:35,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:35,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28624108] [2023-08-25 21:31:35,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28624108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:35,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:35,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:31:35,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623138912] [2023-08-25 21:31:35,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:35,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:35,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:35,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 699 [2023-08-25 21:31:35,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 112 transitions, 801 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:35,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:35,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 699 [2023-08-25 21:31:35,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:36,085 INFO L124 PetriNetUnfolderBase]: 2602/5436 cut-off events. [2023-08-25 21:31:36,085 INFO L125 PetriNetUnfolderBase]: For 10200/10319 co-relation queries the response was YES. [2023-08-25 21:31:36,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14452 conditions, 5436 events. 2602/5436 cut-off events. For 10200/10319 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 35111 event pairs, 1823 based on Foata normal form. 202/5530 useless extension candidates. Maximal degree in co-relation 14425. Up to 4100 conditions per place. [2023-08-25 21:31:36,112 INFO L140 encePairwiseOnDemand]: 695/699 looper letters, 79 selfloop transitions, 1 changer transitions 17/128 dead transitions. [2023-08-25 21:31:36,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 128 transitions, 1089 flow [2023-08-25 21:31:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1031 transitions. [2023-08-25 21:31:36,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.491654744873629 [2023-08-25 21:31:36,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1031 transitions. [2023-08-25 21:31:36,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1031 transitions. [2023-08-25 21:31:36,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:36,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1031 transitions. [2023-08-25 21:31:36,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:36,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:36,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:36,118 INFO L175 Difference]: Start difference. First operand has 121 places, 112 transitions, 801 flow. Second operand 3 states and 1031 transitions. [2023-08-25 21:31:36,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 128 transitions, 1089 flow [2023-08-25 21:31:36,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 128 transitions, 1039 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-25 21:31:36,148 INFO L231 Difference]: Finished difference. Result has 120 places, 110 transitions, 738 flow [2023-08-25 21:31:36,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=120, PETRI_TRANSITIONS=110} [2023-08-25 21:31:36,149 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2023-08-25 21:31:36,149 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 110 transitions, 738 flow [2023-08-25 21:31:36,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:36,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:36,150 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:36,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 21:31:36,150 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:36,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:36,151 INFO L85 PathProgramCache]: Analyzing trace with hash -34040594, now seen corresponding path program 1 times [2023-08-25 21:31:36,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:36,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590341129] [2023-08-25 21:31:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:36,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:36,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:36,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590341129] [2023-08-25 21:31:36,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590341129] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:31:36,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15320992] [2023-08-25 21:31:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:36,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:31:36,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:31:36,523 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 21:31:36,526 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 21:31:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:36,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 36 conjunts are in the unsatisfiable core [2023-08-25 21:31:36,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:31:37,136 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-25 21:31:37,138 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:31:37,139 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 17 treesize of output 10 [2023-08-25 21:31:37,181 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 21:31:37,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:31:37,617 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:31:37,618 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 19 treesize of output 7 [2023-08-25 21:31:37,848 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 21:31:37,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15320992] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:31:37,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:31:37,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 10] total 24 [2023-08-25 21:31:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7280689] [2023-08-25 21:31:37,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:31:37,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 21:31:37,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 21:31:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2023-08-25 21:31:37,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 699 [2023-08-25 21:31:37,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 110 transitions, 738 flow. Second operand has 24 states, 24 states have (on average 244.33333333333334) internal successors, (5864), 24 states have internal predecessors, (5864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:37,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:37,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 699 [2023-08-25 21:31:37,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:46,168 INFO L124 PetriNetUnfolderBase]: 16815/28680 cut-off events. [2023-08-25 21:31:46,169 INFO L125 PetriNetUnfolderBase]: For 34839/35156 co-relation queries the response was YES. [2023-08-25 21:31:46,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73765 conditions, 28680 events. 16815/28680 cut-off events. For 34839/35156 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 186808 event pairs, 1719 based on Foata normal form. 621/29272 useless extension candidates. Maximal degree in co-relation 73738. Up to 5411 conditions per place. [2023-08-25 21:31:46,453 INFO L140 encePairwiseOnDemand]: 675/699 looper letters, 661 selfloop transitions, 112 changer transitions 354/1141 dead transitions. [2023-08-25 21:31:46,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 1141 transitions, 6552 flow [2023-08-25 21:31:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-08-25 21:31:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-08-25 21:31:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 15815 transitions. [2023-08-25 21:31:46,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3649222391434769 [2023-08-25 21:31:46,469 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 15815 transitions. [2023-08-25 21:31:46,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 15815 transitions. [2023-08-25 21:31:46,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:46,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 15815 transitions. [2023-08-25 21:31:46,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 255.08064516129033) internal successors, (15815), 62 states have internal predecessors, (15815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:46,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 699.0) internal successors, (44037), 63 states have internal predecessors, (44037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:46,534 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 699.0) internal successors, (44037), 63 states have internal predecessors, (44037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:46,535 INFO L175 Difference]: Start difference. First operand has 120 places, 110 transitions, 738 flow. Second operand 62 states and 15815 transitions. [2023-08-25 21:31:46,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 1141 transitions, 6552 flow [2023-08-25 21:31:46,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 1141 transitions, 6496 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-25 21:31:46,629 INFO L231 Difference]: Finished difference. Result has 219 places, 194 transitions, 1881 flow [2023-08-25 21:31:46,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=735, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=1881, PETRI_PLACES=219, PETRI_TRANSITIONS=194} [2023-08-25 21:31:46,629 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 110 predicate places. [2023-08-25 21:31:46,630 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 194 transitions, 1881 flow [2023-08-25 21:31:46,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 244.33333333333334) internal successors, (5864), 24 states have internal predecessors, (5864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:46,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:46,631 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:46,637 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 21:31:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:31:46,837 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:46,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash -574344634, now seen corresponding path program 1 times [2023-08-25 21:31:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996250409] [2023-08-25 21:31:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 21:31:46,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:46,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996250409] [2023-08-25 21:31:46,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996250409] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:31:46,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:31:46,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:31:46,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073923257] [2023-08-25 21:31:46,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:31:46,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:31:46,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:46,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:31:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:31:46,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 699 [2023-08-25 21:31:46,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 194 transitions, 1881 flow. Second operand has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:46,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:46,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 699 [2023-08-25 21:31:46,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:31:48,860 INFO L124 PetriNetUnfolderBase]: 6622/13843 cut-off events. [2023-08-25 21:31:48,861 INFO L125 PetriNetUnfolderBase]: For 100221/100637 co-relation queries the response was YES. [2023-08-25 21:31:48,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51855 conditions, 13843 events. 6622/13843 cut-off events. For 100221/100637 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 104263 event pairs, 4755 based on Foata normal form. 483/14200 useless extension candidates. Maximal degree in co-relation 51789. Up to 10556 conditions per place. [2023-08-25 21:31:49,010 INFO L140 encePairwiseOnDemand]: 697/699 looper letters, 155 selfloop transitions, 0 changer transitions 44/236 dead transitions. [2023-08-25 21:31:49,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 236 transitions, 2622 flow [2023-08-25 21:31:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:31:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:31:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1051 transitions. [2023-08-25 21:31:49,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011921793037672 [2023-08-25 21:31:49,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1051 transitions. [2023-08-25 21:31:49,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1051 transitions. [2023-08-25 21:31:49,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:31:49,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1051 transitions. [2023-08-25 21:31:49,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:49,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:49,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 699.0) internal successors, (2796), 4 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 21:31:49,015 INFO L175 Difference]: Start difference. First operand has 219 places, 194 transitions, 1881 flow. Second operand 3 states and 1051 transitions. [2023-08-25 21:31:49,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 236 transitions, 2622 flow [2023-08-25 21:31:49,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 236 transitions, 2379 flow, removed 88 selfloop flow, removed 21 redundant places. [2023-08-25 21:31:49,248 INFO L231 Difference]: Finished difference. Result has 172 places, 192 transitions, 1668 flow [2023-08-25 21:31:49,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1668, PETRI_PLACES=172, PETRI_TRANSITIONS=192} [2023-08-25 21:31:49,249 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 63 predicate places. [2023-08-25 21:31:49,249 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 192 transitions, 1668 flow [2023-08-25 21:31:49,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:49,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:31:49,249 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:31:49,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 21:31:49,249 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:31:49,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:31:49,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1772837511, now seen corresponding path program 2 times [2023-08-25 21:31:49,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:31:49,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569148058] [2023-08-25 21:31:49,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:31:49,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:31:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:31:52,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:31:52,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:31:52,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569148058] [2023-08-25 21:31:52,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569148058] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:31:52,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454292182] [2023-08-25 21:31:52,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 21:31:52,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:31:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:31:52,597 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 21:31:52,599 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 21:31:53,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 21:31:53,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:31:53,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-25 21:31:53,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:31:54,114 INFO L322 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-08-25 21:31:54,114 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 33 treesize of output 19 [2023-08-25 21:31:54,245 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:31:54,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:31:55,401 INFO L322 Elim1Store]: treesize reduction 5, result has 94.8 percent of original size [2023-08-25 21:31:55,401 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 61 treesize of output 112 [2023-08-25 21:31:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:31:56,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454292182] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:31:56,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:31:56,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 18] total 40 [2023-08-25 21:31:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294770094] [2023-08-25 21:31:56,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:31:56,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-25 21:31:56,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:31:56,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-25 21:31:56,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1431, Unknown=1, NotChecked=0, Total=1560 [2023-08-25 21:31:56,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 699 [2023-08-25 21:31:56,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 192 transitions, 1668 flow. Second operand has 40 states, 40 states have (on average 234.8) internal successors, (9392), 40 states have internal predecessors, (9392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:31:56,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:31:56,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 699 [2023-08-25 21:31:56,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:32:39,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:32:43,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:32:45,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-25 21:32:56,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:01,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 21:33:03,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 21:33:05,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:33:11,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:22,756 WARN L234 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 47 DAG size of output: 33 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 21:33:24,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:27,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 21:33:30,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:33:32,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:33:38,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:44,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:33:46,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:51,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:33:58,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:00,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:03,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:06,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:08,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-25 21:34:14,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:16,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:19,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:41,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-25 21:34:47,758 INFO L124 PetriNetUnfolderBase]: 34268/59148 cut-off events. [2023-08-25 21:34:47,759 INFO L125 PetriNetUnfolderBase]: For 224796/225315 co-relation queries the response was YES. [2023-08-25 21:34:48,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188808 conditions, 59148 events. 34268/59148 cut-off events. For 224796/225315 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 420533 event pairs, 3155 based on Foata normal form. 766/59891 useless extension candidates. Maximal degree in co-relation 188758. Up to 11230 conditions per place. [2023-08-25 21:34:48,440 INFO L140 encePairwiseOnDemand]: 677/699 looper letters, 2130 selfloop transitions, 519 changer transitions 37/2700 dead transitions. [2023-08-25 21:34:48,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 2700 transitions, 19290 flow [2023-08-25 21:34:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2023-08-25 21:34:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2023-08-25 21:34:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 42546 transitions. [2023-08-25 21:34:48,483 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34981007350402055 [2023-08-25 21:34:48,483 INFO L72 ComplementDD]: Start complementDD. Operand 174 states and 42546 transitions. [2023-08-25 21:34:48,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 42546 transitions. [2023-08-25 21:34:48,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:34:48,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 174 states and 42546 transitions. [2023-08-25 21:34:48,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 175 states, 174 states have (on average 244.51724137931035) internal successors, (42546), 174 states have internal predecessors, (42546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:34:48,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 175 states, 175 states have (on average 699.0) internal successors, (122325), 175 states have internal predecessors, (122325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:34:48,634 INFO L81 ComplementDD]: Finished complementDD. Result has 175 states, 175 states have (on average 699.0) internal successors, (122325), 175 states have internal predecessors, (122325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:34:48,635 INFO L175 Difference]: Start difference. First operand has 172 places, 192 transitions, 1668 flow. Second operand 174 states and 42546 transitions. [2023-08-25 21:34:48,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 2700 transitions, 19290 flow [2023-08-25 21:34:49,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 2700 transitions, 17910 flow, removed 690 selfloop flow, removed 6 redundant places. [2023-08-25 21:34:49,201 INFO L231 Difference]: Finished difference. Result has 423 places, 679 transitions, 7088 flow [2023-08-25 21:34:49,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=1620, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=174, PETRI_FLOW=7088, PETRI_PLACES=423, PETRI_TRANSITIONS=679} [2023-08-25 21:34:49,202 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 314 predicate places. [2023-08-25 21:34:49,202 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 679 transitions, 7088 flow [2023-08-25 21:34:49,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 234.8) internal successors, (9392), 40 states have internal predecessors, (9392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:34:49,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:34:49,204 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:34:49,211 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 21:34:49,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:34:49,410 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:34:49,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:34:49,410 INFO L85 PathProgramCache]: Analyzing trace with hash -439361986, now seen corresponding path program 3 times [2023-08-25 21:34:49,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:34:49,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414434990] [2023-08-25 21:34:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:34:49,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:34:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:34:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-25 21:34:50,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:34:50,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414434990] [2023-08-25 21:34:50,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414434990] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:34:50,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112359859] [2023-08-25 21:34:50,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:34:50,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:34:50,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:34:50,368 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 21:34:50,374 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 21:34:50,797 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 21:34:50,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:34:50,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-25 21:34:50,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:34:50,849 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 21:34:50,882 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 21:34:50,907 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 21:34:51,585 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:34:51,585 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 23 treesize of output 10 [2023-08-25 21:34:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-25 21:34:51,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:34:52,653 WARN L839 $PredicateComparison]: unable to prove that (forall ((~x1~0 Int) (~x2~0 Int) (v_ArrVal_1279 (Array Int Int))) (or (< ~x1~0 0) (<= c_~size~0 ~x1~0) (< ~x2~0 0) (<= c_~size~0 ~x2~0) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1279) c_~f~0.base))) (= (select .cse0 (+ (* ~x1~0 4) c_~f~0.offset)) (select .cse0 (+ c_~f~0.offset (* ~x2~0 4))))))) is different from false [2023-08-25 21:34:52,753 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:34:52,753 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 44 [2023-08-25 21:34:52,765 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:34:52,765 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 94 treesize of output 81 [2023-08-25 21:34:52,786 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:34:52,786 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 78 treesize of output 54 [2023-08-25 21:34:52,793 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 21:34:52,793 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 32 treesize of output 20 [2023-08-25 21:34:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-08-25 21:34:52,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112359859] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:34:52,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:34:52,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 39 [2023-08-25 21:34:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447199573] [2023-08-25 21:34:52,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:34:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-25 21:34:52,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:34:52,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-25 21:34:52,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1358, Unknown=1, NotChecked=76, Total=1640 [2023-08-25 21:34:52,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 699 [2023-08-25 21:34:52,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 679 transitions, 7088 flow. Second operand has 41 states, 41 states have (on average 231.9512195121951) internal successors, (9510), 41 states have internal predecessors, (9510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:34:52,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:34:52,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 699 [2023-08-25 21:34:52,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:36:04,618 INFO L124 PetriNetUnfolderBase]: 162347/256247 cut-off events. [2023-08-25 21:36:04,619 INFO L125 PetriNetUnfolderBase]: For 4511253/4514233 co-relation queries the response was YES. [2023-08-25 21:36:11,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1050464 conditions, 256247 events. 162347/256247 cut-off events. For 4511253/4514233 co-relation queries the response was YES. Maximal size of possible extension queue 1809. Compared 1997101 event pairs, 18125 based on Foata normal form. 2672/258786 useless extension candidates. Maximal degree in co-relation 1050334. Up to 37969 conditions per place. [2023-08-25 21:36:11,729 INFO L140 encePairwiseOnDemand]: 679/699 looper letters, 607 selfloop transitions, 67 changer transitions 1510/2209 dead transitions. [2023-08-25 21:36:11,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 2209 transitions, 22618 flow [2023-08-25 21:36:11,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-08-25 21:36:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2023-08-25 21:36:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 13603 transitions. [2023-08-25 21:36:11,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35383014696319415 [2023-08-25 21:36:11,743 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 13603 transitions. [2023-08-25 21:36:11,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 13603 transitions. [2023-08-25 21:36:11,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:36:11,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 13603 transitions. [2023-08-25 21:36:11,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 247.3272727272727) internal successors, (13603), 55 states have internal predecessors, (13603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:36:11,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 699.0) internal successors, (39144), 56 states have internal predecessors, (39144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:36:11,791 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 699.0) internal successors, (39144), 56 states have internal predecessors, (39144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:36:11,791 INFO L175 Difference]: Start difference. First operand has 423 places, 679 transitions, 7088 flow. Second operand 55 states and 13603 transitions. [2023-08-25 21:36:11,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 2209 transitions, 22618 flow [2023-08-25 21:37:07,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 2209 transitions, 20409 flow, removed 1040 selfloop flow, removed 12 redundant places. [2023-08-25 21:37:07,046 INFO L231 Difference]: Finished difference. Result has 511 places, 254 transitions, 3154 flow [2023-08-25 21:37:07,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=5675, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=3154, PETRI_PLACES=511, PETRI_TRANSITIONS=254} [2023-08-25 21:37:07,047 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 402 predicate places. [2023-08-25 21:37:07,047 INFO L495 AbstractCegarLoop]: Abstraction has has 511 places, 254 transitions, 3154 flow [2023-08-25 21:37:07,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 231.9512195121951) internal successors, (9510), 41 states have internal predecessors, (9510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:07,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:37:07,049 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:37:07,059 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 21:37:07,255 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,SelfDestructingSolverStorable23 [2023-08-25 21:37:07,256 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:37:07,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:37:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 736155336, now seen corresponding path program 4 times [2023-08-25 21:37:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:37:07,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771717185] [2023-08-25 21:37:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:37:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:37:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:37:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 13 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:37:08,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:37:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771717185] [2023-08-25 21:37:08,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771717185] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:37:08,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352583346] [2023-08-25 21:37:08,223 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 21:37:08,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:37:08,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:37:08,225 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 21:37:08,232 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 21:37:10,500 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 21:37:10,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:37:10,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 21:37:10,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:37:11,587 INFO L322 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-08-25 21:37:11,588 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 37 treesize of output 19 [2023-08-25 21:37:11,693 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:37:11,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:37:12,874 INFO L322 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2023-08-25 21:37:12,874 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 55 [2023-08-25 21:37:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:37:13,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352583346] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:37:13,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:37:13,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 20, 20] total 53 [2023-08-25 21:37:13,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188304162] [2023-08-25 21:37:13,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:37:13,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-08-25 21:37:13,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:37:13,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-08-25 21:37:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=2569, Unknown=0, NotChecked=0, Total=2970 [2023-08-25 21:37:13,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 699 [2023-08-25 21:37:13,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 254 transitions, 3154 flow. Second operand has 55 states, 55 states have (on average 248.94545454545454) internal successors, (13692), 55 states have internal predecessors, (13692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:13,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:37:13,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 699 [2023-08-25 21:37:13,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:37:33,921 INFO L124 PetriNetUnfolderBase]: 28408/49755 cut-off events. [2023-08-25 21:37:33,921 INFO L125 PetriNetUnfolderBase]: For 1540520/1541006 co-relation queries the response was YES. [2023-08-25 21:37:35,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268876 conditions, 49755 events. 28408/49755 cut-off events. For 1540520/1541006 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 366202 event pairs, 3682 based on Foata normal form. 470/50176 useless extension candidates. Maximal degree in co-relation 268701. Up to 11308 conditions per place. [2023-08-25 21:37:35,187 INFO L140 encePairwiseOnDemand]: 677/699 looper letters, 530 selfloop transitions, 111 changer transitions 551/1225 dead transitions. [2023-08-25 21:37:35,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1225 transitions, 15876 flow [2023-08-25 21:37:35,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-08-25 21:37:35,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2023-08-25 21:37:35,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 15464 transitions. [2023-08-25 21:37:35,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687172150691464 [2023-08-25 21:37:35,197 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 15464 transitions. [2023-08-25 21:37:35,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 15464 transitions. [2023-08-25 21:37:35,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:37:35,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 15464 transitions. [2023-08-25 21:37:35,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 257.73333333333335) internal successors, (15464), 60 states have internal predecessors, (15464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:35,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 699.0) internal successors, (42639), 61 states have internal predecessors, (42639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:35,246 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 699.0) internal successors, (42639), 61 states have internal predecessors, (42639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:35,246 INFO L175 Difference]: Start difference. First operand has 511 places, 254 transitions, 3154 flow. Second operand 60 states and 15464 transitions. [2023-08-25 21:37:35,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1225 transitions, 15876 flow [2023-08-25 21:37:38,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 1225 transitions, 13040 flow, removed 1404 selfloop flow, removed 77 redundant places. [2023-08-25 21:37:38,306 INFO L231 Difference]: Finished difference. Result has 368 places, 311 transitions, 4166 flow [2023-08-25 21:37:38,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=2684, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=4166, PETRI_PLACES=368, PETRI_TRANSITIONS=311} [2023-08-25 21:37:38,306 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 259 predicate places. [2023-08-25 21:37:38,307 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 311 transitions, 4166 flow [2023-08-25 21:37:38,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 248.94545454545454) internal successors, (13692), 55 states have internal predecessors, (13692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:38,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:37:38,308 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:37:38,317 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 21:37:38,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:37:38,513 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:37:38,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:37:38,513 INFO L85 PathProgramCache]: Analyzing trace with hash 288887068, now seen corresponding path program 5 times [2023-08-25 21:37:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:37:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956301138] [2023-08-25 21:37:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:37:38,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:37:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:37:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 21:37:40,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:37:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956301138] [2023-08-25 21:37:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956301138] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:37:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988924679] [2023-08-25 21:37:40,047 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 21:37:40,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:37:40,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:37:40,049 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 21:37:40,080 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 21:37:57,629 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-08-25 21:37:57,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:37:57,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 33 conjunts are in the unsatisfiable core [2023-08-25 21:37:57,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:37:58,396 INFO L322 Elim1Store]: treesize reduction 99, result has 27.7 percent of original size [2023-08-25 21:37:58,397 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 51 treesize of output 72 [2023-08-25 21:37:58,468 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:37:58,468 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:37:58,928 INFO L322 Elim1Store]: treesize reduction 15, result has 90.2 percent of original size [2023-08-25 21:37:58,929 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 51 treesize of output 173 [2023-08-25 21:37:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 35 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:37:59,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988924679] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:37:59,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:37:59,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 13] total 43 [2023-08-25 21:37:59,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346147902] [2023-08-25 21:37:59,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:37:59,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-08-25 21:37:59,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:37:59,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-08-25 21:37:59,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=1715, Unknown=0, NotChecked=0, Total=1980 [2023-08-25 21:37:59,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 699 [2023-08-25 21:37:59,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 311 transitions, 4166 flow. Second operand has 45 states, 45 states have (on average 242.48888888888888) internal successors, (10912), 45 states have internal predecessors, (10912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:37:59,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:37:59,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 699 [2023-08-25 21:37:59,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:38:13,157 INFO L124 PetriNetUnfolderBase]: 25123/44432 cut-off events. [2023-08-25 21:38:13,158 INFO L125 PetriNetUnfolderBase]: For 700787/701297 co-relation queries the response was YES. [2023-08-25 21:38:14,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218505 conditions, 44432 events. 25123/44432 cut-off events. For 700787/701297 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 314463 event pairs, 5572 based on Foata normal form. 492/44869 useless extension candidates. Maximal degree in co-relation 218355. Up to 27206 conditions per place. [2023-08-25 21:38:14,447 INFO L140 encePairwiseOnDemand]: 683/699 looper letters, 656 selfloop transitions, 132 changer transitions 24/845 dead transitions. [2023-08-25 21:38:14,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 845 transitions, 10949 flow [2023-08-25 21:38:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-08-25 21:38:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-08-25 21:38:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 9851 transitions. [2023-08-25 21:38:14,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36135871758189353 [2023-08-25 21:38:14,454 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 9851 transitions. [2023-08-25 21:38:14,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 9851 transitions. [2023-08-25 21:38:14,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:38:14,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 9851 transitions. [2023-08-25 21:38:14,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 252.5897435897436) internal successors, (9851), 39 states have internal predecessors, (9851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:38:14,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 699.0) internal successors, (27960), 40 states have internal predecessors, (27960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:38:14,485 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 699.0) internal successors, (27960), 40 states have internal predecessors, (27960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:38:14,485 INFO L175 Difference]: Start difference. First operand has 368 places, 311 transitions, 4166 flow. Second operand 39 states and 9851 transitions. [2023-08-25 21:38:14,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 845 transitions, 10949 flow [2023-08-25 21:38:16,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 845 transitions, 9775 flow, removed 566 selfloop flow, removed 28 redundant places. [2023-08-25 21:38:16,492 INFO L231 Difference]: Finished difference. Result has 363 places, 393 transitions, 5543 flow [2023-08-25 21:38:16,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=3743, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=5543, PETRI_PLACES=363, PETRI_TRANSITIONS=393} [2023-08-25 21:38:16,493 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 254 predicate places. [2023-08-25 21:38:16,493 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 393 transitions, 5543 flow [2023-08-25 21:38:16,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 242.48888888888888) internal successors, (10912), 45 states have internal predecessors, (10912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:38:16,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:38:16,494 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:38:16,505 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 21:38:16,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:38:16,695 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:38:16,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:38:16,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1359274134, now seen corresponding path program 6 times [2023-08-25 21:38:16,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:38:16,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803281105] [2023-08-25 21:38:16,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:38:16,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:38:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:38:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:38:18,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:38:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803281105] [2023-08-25 21:38:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803281105] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:38:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484300680] [2023-08-25 21:38:18,735 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 21:38:18,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:38:18,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:38:18,736 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 21:38:18,738 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 21:38:19,406 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-08-25 21:38:19,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:38:19,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 32 conjunts are in the unsatisfiable core [2023-08-25 21:38:19,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:38:19,922 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:38:19,922 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 23 treesize of output 10 [2023-08-25 21:38:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 17 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:38:19,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:38:20,195 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:38:20,195 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 19 treesize of output 7 [2023-08-25 21:38:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:38:20,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484300680] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:38:20,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:38:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 43 [2023-08-25 21:38:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419270927] [2023-08-25 21:38:20,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:38:20,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-08-25 21:38:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:38:20,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-08-25 21:38:20,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1741, Unknown=0, NotChecked=0, Total=1980 [2023-08-25 21:38:20,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 699 [2023-08-25 21:38:20,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 393 transitions, 5543 flow. Second operand has 45 states, 45 states have (on average 230.04444444444445) internal successors, (10352), 45 states have internal predecessors, (10352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:38:20,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:38:20,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 699 [2023-08-25 21:38:20,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:39:16,490 INFO L124 PetriNetUnfolderBase]: 118185/188837 cut-off events. [2023-08-25 21:39:16,490 INFO L125 PetriNetUnfolderBase]: For 2000348/2002387 co-relation queries the response was YES. [2023-08-25 21:39:22,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816353 conditions, 188837 events. 118185/188837 cut-off events. For 2000348/2002387 co-relation queries the response was YES. Maximal size of possible extension queue 1515. Compared 1459999 event pairs, 20936 based on Foata normal form. 1773/190512 useless extension candidates. Maximal degree in co-relation 816209. Up to 57453 conditions per place. [2023-08-25 21:39:23,611 INFO L140 encePairwiseOnDemand]: 678/699 looper letters, 823 selfloop transitions, 177 changer transitions 295/1320 dead transitions. [2023-08-25 21:39:23,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1320 transitions, 15597 flow [2023-08-25 21:39:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-08-25 21:39:23,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-08-25 21:39:23,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 11226 transitions. [2023-08-25 21:39:23,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3491323008023885 [2023-08-25 21:39:23,621 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 11226 transitions. [2023-08-25 21:39:23,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 11226 transitions. [2023-08-25 21:39:23,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:39:23,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 11226 transitions. [2023-08-25 21:39:23,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 244.04347826086956) internal successors, (11226), 46 states have internal predecessors, (11226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:39:23,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 699.0) internal successors, (32853), 47 states have internal predecessors, (32853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:39:23,655 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 699.0) internal successors, (32853), 47 states have internal predecessors, (32853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:39:23,656 INFO L175 Difference]: Start difference. First operand has 363 places, 393 transitions, 5543 flow. Second operand 46 states and 11226 transitions. [2023-08-25 21:39:23,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1320 transitions, 15597 flow [2023-08-25 21:39:34,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 1320 transitions, 14475 flow, removed 528 selfloop flow, removed 19 redundant places. [2023-08-25 21:39:34,420 INFO L231 Difference]: Finished difference. Result has 417 places, 466 transitions, 6597 flow [2023-08-25 21:39:34,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=699, PETRI_DIFFERENCE_MINUEND_FLOW=4863, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=6597, PETRI_PLACES=417, PETRI_TRANSITIONS=466} [2023-08-25 21:39:34,421 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 308 predicate places. [2023-08-25 21:39:34,421 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 466 transitions, 6597 flow [2023-08-25 21:39:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 230.04444444444445) internal successors, (10352), 45 states have internal predecessors, (10352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:39:34,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:39:34,422 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:39:34,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-08-25 21:39:34,622 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,SelfDestructingSolverStorable26 [2023-08-25 21:39:34,623 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2023-08-25 21:39:34,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:39:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1466308310, now seen corresponding path program 7 times [2023-08-25 21:39:34,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:39:34,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178655912] [2023-08-25 21:39:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:39:34,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:39:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:39:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:39:35,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:39:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178655912] [2023-08-25 21:39:35,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178655912] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:39:35,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472065035] [2023-08-25 21:39:35,494 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 21:39:35,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:39:35,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:39:35,496 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 21:39:35,497 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 21:39:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:39:35,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 62 conjunts are in the unsatisfiable core [2023-08-25 21:39:35,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:39:35,740 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 21:39:35,773 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 21:39:35,829 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 21:39:36,680 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 21:39:36,681 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 21 [2023-08-25 21:39:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:39:36,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:39:37,790 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1955 (Array Int Int)) (v_~x2~0_239 Int)) (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1955) c_~f~0.base))) (let ((.cse1 (select .cse0 (+ (* c_~x1~0 4) c_~f~0.offset))) (.cse2 (select .cse0 (+ (* c_~x2~0 4) c_~f~0.offset)))) (or (= (select .cse0 (+ (* v_~x2~0_239 4) c_~f~0.offset)) (select .cse0 (+ (* (select .cse0 (+ (* .cse1 4) c_~f~0.offset)) 4) c_~f~0.offset))) (< (select .cse0 (+ c_~f~0.offset (* .cse2 4))) v_~x2~0_239) (<= c_~size~0 .cse1) (< v_~x2~0_239 0) (< .cse2 0))))) is different from false [2023-08-25 21:39:37,976 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:39:37,976 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 221 treesize of output 137 [2023-08-25 21:39:38,065 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:39:38,066 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 373 treesize of output 489 [2023-08-25 21:39:38,170 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:39:38,171 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 309 treesize of output 393 [2023-08-25 21:39:38,310 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:39:38,311 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 129 treesize of output 261 [2023-08-25 21:40:23,913 INFO L209 tifierPushTermWalker]: Run 10 iterations without descend maybe there is a nontermination bug. [2023-08-25 21:40:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2023-08-25 21:40:24,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472065035] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:40:24,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:40:24,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18, 20] total 52 [2023-08-25 21:40:24,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444991370] [2023-08-25 21:40:24,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:40:24,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2023-08-25 21:40:24,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:24,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2023-08-25 21:40:24,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=2506, Unknown=1, NotChecked=102, Total=2862 [2023-08-25 21:40:24,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 699 [2023-08-25 21:40:24,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 466 transitions, 6597 flow. Second operand has 54 states, 54 states have (on average 229.37037037037038) internal successors, (12386), 54 states have internal predecessors, (12386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:24,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:24,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 699 [2023-08-25 21:40:24,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:53,991 INFO L124 PetriNetUnfolderBase]: 170997/272335 cut-off events. [2023-08-25 21:41:53,991 INFO L125 PetriNetUnfolderBase]: For 3147636/3149660 co-relation queries the response was YES. [2023-08-25 21:42:04,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201639 conditions, 272335 events. 170997/272335 cut-off events. For 3147636/3149660 co-relation queries the response was YES. Maximal size of possible extension queue 2445. Compared 2221476 event pairs, 30200 based on Foata normal form. 1758/273993 useless extension candidates. Maximal degree in co-relation 1201476. Up to 57464 conditions per place. [2023-08-25 21:42:05,823 INFO L140 encePairwiseOnDemand]: 679/699 looper letters, 1217 selfloop transitions, 372 changer transitions 357/1971 dead transitions. [2023-08-25 21:42:05,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 1971 transitions, 23804 flow [2023-08-25 21:42:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-08-25 21:42:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2023-08-25 21:42:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 20474 transitions. [2023-08-25 21:42:05,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3445931162164437 [2023-08-25 21:42:05,840 INFO L72 ComplementDD]: Start complementDD. Operand 85 states and 20474 transitions. [2023-08-25 21:42:05,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 20474 transitions. [2023-08-25 21:42:05,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:42:05,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 85 states and 20474 transitions. [2023-08-25 21:42:05,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 86 states, 85 states have (on average 240.87058823529412) internal successors, (20474), 85 states have internal predecessors, (20474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:05,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 86 states, 86 states have (on average 699.0) internal successors, (60114), 86 states have internal predecessors, (60114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:05,906 INFO L81 ComplementDD]: Finished complementDD. Result has 86 states, 86 states have (on average 699.0) internal successors, (60114), 86 states have internal predecessors, (60114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:05,906 INFO L175 Difference]: Start difference. First operand has 417 places, 466 transitions, 6597 flow. Second operand 85 states and 20474 transitions. [2023-08-25 21:42:05,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 1971 transitions, 23804 flow Received shutdown request... [2023-08-25 21:42:33,348 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 21:42:33,349 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONASSERT (73 of 74 remaining) [2023-08-25 21:42:33,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-08-25 21:42:33,383 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 21:42:33,554 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,SelfDestructingSolverStorable27 [2023-08-25 21:42:33,554 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2023-08-25 21:42:33,556 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2023-08-25 21:42:33,557 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2023-08-25 21:42:33,558 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2023-08-25 21:42:33,558 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2023-08-25 21:42:33,558 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2023-08-25 21:42:33,559 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2023-08-25 21:42:33,562 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2023-08-25 21:42:33,562 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2023-08-25 21:42:33,562 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2023-08-25 21:42:33,563 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2023-08-25 21:42:33,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2023-08-25 21:42:33,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2023-08-25 21:42:33,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2023-08-25 21:42:33,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2023-08-25 21:42:33,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err18ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err19ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err20ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err21ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2023-08-25 21:42:33,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2023-08-25 21:42:33,566 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2023-08-25 21:42:33,566 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2023-08-25 21:42:33,593 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2023-08-25 21:42:33,594 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2023-08-25 21:42:33,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2023-08-25 21:42:33,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2023-08-25 21:42:33,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2023-08-25 21:42:33,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2023-08-25 21:42:33,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2023-08-25 21:42:33,596 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2023-08-25 21:42:33,597 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err16ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err17ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err18ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err19ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err20ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2023-08-25 21:42:33,598 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err21ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2023-08-25 21:42:33,598 INFO L445 BasicCegarLoop]: Path program histogram: [7, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:42:33,603 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 21:42:33,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 21:42:33,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:42:33 BasicIcfg [2023-08-25 21:42:33,606 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 21:42:33,609 INFO L158 Benchmark]: Toolchain (without parser) took 685769.77ms. Allocated memory was 348.1MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 324.3MB in the beginning and 7.5GB in the end (delta: -7.2GB). Peak memory consumption was 8.6GB. Max. memory is 16.0GB. [2023-08-25 21:42:33,610 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 348.1MB. Free memory is still 324.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 21:42:33,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.81ms. Allocated memory is still 348.1MB. Free memory was 323.8MB in the beginning and 312.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 21:42:33,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.62ms. Allocated memory is still 348.1MB. Free memory was 311.6MB in the beginning and 309.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:42:33,613 INFO L158 Benchmark]: Boogie Preprocessor took 47.44ms. Allocated memory is still 348.1MB. Free memory was 309.0MB in the beginning and 306.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:42:33,614 INFO L158 Benchmark]: RCFGBuilder took 716.34ms. Allocated memory is still 348.1MB. Free memory was 306.7MB in the beginning and 279.0MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 21:42:33,614 INFO L158 Benchmark]: TraceAbstraction took 684648.83ms. Allocated memory was 348.1MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 278.1MB in the beginning and 7.5GB in the end (delta: -7.3GB). Peak memory consumption was 8.5GB. Max. memory is 16.0GB. [2023-08-25 21:42:33,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 348.1MB. Free memory is still 324.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 293.81ms. Allocated memory is still 348.1MB. Free memory was 323.8MB in the beginning and 312.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.62ms. Allocated memory is still 348.1MB. Free memory was 311.6MB in the beginning and 309.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 47.44ms. Allocated memory is still 348.1MB. Free memory was 309.0MB in the beginning and 306.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 716.34ms. Allocated memory is still 348.1MB. Free memory was 306.7MB in the beginning and 279.0MB in the end (delta: 27.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 684648.83ms. Allocated memory was 348.1MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 278.1MB in the beginning and 7.5GB in the end (delta: -7.3GB). Peak memory consumption was 8.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 325 PlacesBefore, 109 PlacesAfterwards, 337 TransitionsBefore, 111 TransitionsAfterwards, 20880 CoEnabledTransitionPairs, 8 FixpointIterations, 130 TrivialSequentialCompositions, 167 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 28 ConcurrentYvCompositions, 10 ChoiceCompositions, 351 TotalNumberOfCompositions, 82965 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25420, independent: 24270, independent conditional: 0, independent unconditional: 24270, dependent: 1150, dependent conditional: 0, dependent unconditional: 1150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11616, independent: 11451, independent conditional: 0, independent unconditional: 11451, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25420, independent: 12819, independent conditional: 0, independent unconditional: 12819, dependent: 985, dependent conditional: 0, dependent unconditional: 985, unknown: 11616, unknown conditional: 0, unknown unconditional: 11616] , Statistics on independence cache: Total cache size (in pairs): 1005, Positive cache size: 916, Positive conditional cache size: 0, Positive unconditional cache size: 916, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, 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 executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 61]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 77]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 87]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 88]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 512 locations, 74 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: 684.5s, OverallIterations: 28, TraceHistogramMax: 4, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 578.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 11656 SdHoareTripleChecker+Valid, 104.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11656 mSDsluCounter, 7156 SdHoareTripleChecker+Invalid, 98.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2450 IncrementalHoareTripleChecker+Unchecked, 6655 mSDsCounter, 831 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67822 IncrementalHoareTripleChecker+Invalid, 71123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 831 mSolverCounterUnsat, 501 mSDtfsCounter, 67822 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1970 GetRequests, 1152 SyntacticMatches, 10 SemanticMatches, 808 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 26962 ImplicationChecksByTransitivity, 111.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7088occurred in iteration=23, InterpolantAutomatonStates: 526, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 21.9s SatisfiabilityAnalysisTime, 72.8s InterpolantComputationTime, 1841 NumberOfCodeBlocks, 1806 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2463 ConstructedInterpolants, 372 QuantifiedInterpolants, 34408 SizeOfPredicates, 149 NumberOfNonLiveVariables, 4248 ConjunctsInSsa, 320 ConjunctsInUnsatCore, 46 InterpolantComputations, 20 PerfectInterpolantSequences, 268/808 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 [2023-08-25 21:42:33,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 !ENTRY org.eclipse.osgi 4 0 2023-08-25 21:42:33.881 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2452133/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b2452133/.metadata/.log.