/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/popl20-more-queue-add-2-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 20:50:32,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 20:50:33,068 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 20:50:33,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 20:50:33,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 20:50:33,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 20:50:33,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 20:50:33,117 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 20:50:33,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 20:50:33,118 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 20:50:33,118 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 20:50:33,119 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 20:50:33,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 20:50:33,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 20:50:33,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 20:50:33,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 20:50:33,120 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 20:50:33,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 20:50:33,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 20:50:33,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 20:50:33,121 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 20:50:33,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 20:50:33,125 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 20:50:33,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 20:50:33,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 20:50:33,127 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 20:50:33,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 20:50:33,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:50:33,128 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 20:50:33,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 20:50:33,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 20:50:33,128 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 20:50:33,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 20:50:33,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 20:50:33,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 20:50:33,131 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 20:50:33,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 20:50:33,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 20:50:33,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 20:50:33,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 20:50:33,443 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 20:50:33,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-08-25 20:50:34,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 20:50:34,849 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 20:50:34,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-2-nl.wvr.c [2023-08-25 20:50:34,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2da01f4a/742651b676b84056ab360e9ddfb2437a/FLAGdfb397e8a [2023-08-25 20:50:34,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2da01f4a/742651b676b84056ab360e9ddfb2437a [2023-08-25 20:50:34,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 20:50:34,868 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 20:50:34,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 20:50:34,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 20:50:34,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 20:50:34,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:50:34" (1/1) ... [2023-08-25 20:50:34,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aae02ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:34, skipping insertion in model container [2023-08-25 20:50:34,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 08:50:34" (1/1) ... [2023-08-25 20:50:34,891 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 20:50:35,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:50:35,079 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 20:50:35,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 20:50:35,133 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:50:35,134 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 20:50:35,139 INFO L206 MainTranslator]: Completed translation [2023-08-25 20:50:35,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35 WrapperNode [2023-08-25 20:50:35,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 20:50:35,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 20:50:35,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 20:50:35,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 20:50:35,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,210 INFO L138 Inliner]: procedures = 25, calls = 40, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 350 [2023-08-25 20:50:35,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 20:50:35,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 20:50:35,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 20:50:35,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 20:50:35,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 20:50:35,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 20:50:35,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 20:50:35,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 20:50:35,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (1/1) ... [2023-08-25 20:50:35,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 20:50:35,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:50:35,301 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 20:50:35,324 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 20:50:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 20:50:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 20:50:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 20:50:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 20:50:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 20:50:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 20:50:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 20:50:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 20:50:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 20:50:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 20:50:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 20:50:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 20:50:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 20:50:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 20:50:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 20:50:35,342 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 20:50:35,470 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 20:50:35,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 20:50:36,064 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 20:50:36,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 20:50:36,392 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 20:50:36,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:50:36 BoogieIcfgContainer [2023-08-25 20:50:36,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 20:50:36,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 20:50:36,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 20:50:36,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 20:50:36,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 08:50:34" (1/3) ... [2023-08-25 20:50:36,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0d0658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:50:36, skipping insertion in model container [2023-08-25 20:50:36,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 08:50:35" (2/3) ... [2023-08-25 20:50:36,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f0d0658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 08:50:36, skipping insertion in model container [2023-08-25 20:50:36,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 08:50:36" (3/3) ... [2023-08-25 20:50:36,404 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-2-nl.wvr.c [2023-08-25 20:50:36,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 20:50:36,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-08-25 20:50:36,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 20:50:36,525 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 20:50:36,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 292 transitions, 600 flow [2023-08-25 20:50:36,640 INFO L124 PetriNetUnfolderBase]: 12/290 cut-off events. [2023-08-25 20:50:36,640 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 20:50:36,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 290 events. 12/290 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 506 event pairs, 0 based on Foata normal form. 0/222 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2023-08-25 20:50:36,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 292 transitions, 600 flow [2023-08-25 20:50:36,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 281 transitions, 574 flow [2023-08-25 20:50:36,665 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 20:50:36,676 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 281 transitions, 574 flow [2023-08-25 20:50:36,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 281 transitions, 574 flow [2023-08-25 20:50:36,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 281 transitions, 574 flow [2023-08-25 20:50:36,752 INFO L124 PetriNetUnfolderBase]: 12/281 cut-off events. [2023-08-25 20:50:36,752 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 20:50:36,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 281 events. 12/281 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 498 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 191. Up to 3 conditions per place. [2023-08-25 20:50:36,761 INFO L119 LiptonReduction]: Number of co-enabled transitions 8366 [2023-08-25 20:50:45,043 INFO L134 LiptonReduction]: Checked pairs total: 26432 [2023-08-25 20:50:45,044 INFO L136 LiptonReduction]: Total number of compositions: 331 [2023-08-25 20:50:45,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 20:50:45,061 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;@4a75adc4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 20:50:45,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-08-25 20:50:45,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 20:50:45,063 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 20:50:45,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 20:50:45,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:45,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 20:50:45,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:45,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1462, now seen corresponding path program 1 times [2023-08-25 20:50:45,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:45,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232516628] [2023-08-25 20:50:45,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:45,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:45,150 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 20:50:45,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:45,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232516628] [2023-08-25 20:50:45,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232516628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:45,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:45,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 20:50:45,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860484436] [2023-08-25 20:50:45,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:45,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 20:50:45,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:45,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 20:50:45,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 20:50:45,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 623 [2023-08-25 20:50:45,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 87 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 250.5) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:45,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 623 [2023-08-25 20:50:45,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:45,285 INFO L124 PetriNetUnfolderBase]: 141/335 cut-off events. [2023-08-25 20:50:45,286 INFO L125 PetriNetUnfolderBase]: For 27/32 co-relation queries the response was YES. [2023-08-25 20:50:45,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 335 events. 141/335 cut-off events. For 27/32 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1470 event pairs, 101 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 509. Up to 239 conditions per place. [2023-08-25 20:50:45,289 INFO L140 encePairwiseOnDemand]: 572/623 looper letters, 22 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2023-08-25 20:50:45,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 36 transitions, 128 flow [2023-08-25 20:50:45,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 20:50:45,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 20:50:45,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 573 transitions. [2023-08-25 20:50:45,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45987158908507225 [2023-08-25 20:50:45,308 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 573 transitions. [2023-08-25 20:50:45,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 573 transitions. [2023-08-25 20:50:45,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:45,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 573 transitions. [2023-08-25 20:50:45,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 623.0) internal successors, (1869), 3 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,322 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 623.0) internal successors, (1869), 3 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,324 INFO L175 Difference]: Start difference. First operand has 90 places, 87 transitions, 186 flow. Second operand 2 states and 573 transitions. [2023-08-25 20:50:45,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 36 transitions, 128 flow [2023-08-25 20:50:45,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:50:45,328 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 76 flow [2023-08-25 20:50:45,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2023-08-25 20:50:45,332 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -53 predicate places. [2023-08-25 20:50:45,333 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 76 flow [2023-08-25 20:50:45,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 250.5) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:45,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:45,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 20:50:45,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:45,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1050328387, now seen corresponding path program 1 times [2023-08-25 20:50:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911434122] [2023-08-25 20:50:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:45,496 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 20:50:45,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:45,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911434122] [2023-08-25 20:50:45,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911434122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:45,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:45,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:50:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987258419] [2023-08-25 20:50:45,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:50:45,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:45,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:50:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:50:45,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 623 [2023-08-25 20:50:45,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:45,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 623 [2023-08-25 20:50:45,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:45,602 INFO L124 PetriNetUnfolderBase]: 175/349 cut-off events. [2023-08-25 20:50:45,602 INFO L125 PetriNetUnfolderBase]: For 6/27 co-relation queries the response was YES. [2023-08-25 20:50:45,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 349 events. 175/349 cut-off events. For 6/27 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1389 event pairs, 32 based on Foata normal form. 2/293 useless extension candidates. Maximal degree in co-relation 652. Up to 246 conditions per place. [2023-08-25 20:50:45,605 INFO L140 encePairwiseOnDemand]: 617/623 looper letters, 29 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2023-08-25 20:50:45,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 155 flow [2023-08-25 20:50:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:50:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:50:45,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 749 transitions. [2023-08-25 20:50:45,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40074906367041196 [2023-08-25 20:50:45,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 749 transitions. [2023-08-25 20:50:45,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 749 transitions. [2023-08-25 20:50:45,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:45,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 749 transitions. [2023-08-25 20:50:45,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,618 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 76 flow. Second operand 3 states and 749 transitions. [2023-08-25 20:50:45,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 155 flow [2023-08-25 20:50:45,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 43 transitions, 155 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 20:50:45,619 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 91 flow [2023-08-25 20:50:45,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2023-08-25 20:50:45,620 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -53 predicate places. [2023-08-25 20:50:45,621 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 91 flow [2023-08-25 20:50:45,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:45,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:45,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:45,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 20:50:45,625 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:45,627 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash -881758493, now seen corresponding path program 1 times [2023-08-25 20:50:45,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:45,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014873137] [2023-08-25 20:50:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:45,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:46,043 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 20:50:46,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:46,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014873137] [2023-08-25 20:50:46,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014873137] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:46,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:46,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:50:46,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151377960] [2023-08-25 20:50:46,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:46,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:50:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:50:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:50:46,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:46,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 36 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 227.66666666666666) internal successors, (1366), 6 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 20:50:46,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:46,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:46,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:46,401 INFO L124 PetriNetUnfolderBase]: 572/888 cut-off events. [2023-08-25 20:50:46,401 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2023-08-25 20:50:46,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2018 conditions, 888 events. 572/888 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3474 event pairs, 40 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 2014. Up to 344 conditions per place. [2023-08-25 20:50:46,406 INFO L140 encePairwiseOnDemand]: 618/623 looper letters, 86 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2023-08-25 20:50:46,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 91 transitions, 441 flow [2023-08-25 20:50:46,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:50:46,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:50:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1432 transitions. [2023-08-25 20:50:46,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38309256286784377 [2023-08-25 20:50:46,410 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1432 transitions. [2023-08-25 20:50:46,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1432 transitions. [2023-08-25 20:50:46,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:46,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1432 transitions. [2023-08-25 20:50:46,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,421 INFO L175 Difference]: Start difference. First operand has 37 places, 36 transitions, 91 flow. Second operand 6 states and 1432 transitions. [2023-08-25 20:50:46,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 91 transitions, 441 flow [2023-08-25 20:50:46,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 91 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 20:50:46,424 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 97 flow [2023-08-25 20:50:46,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2023-08-25 20:50:46,425 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -49 predicate places. [2023-08-25 20:50:46,426 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 97 flow [2023-08-25 20:50:46,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.66666666666666) internal successors, (1366), 6 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 20:50:46,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:46,427 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 20:50:46,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 20:50:46,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:46,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:46,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1113074960, now seen corresponding path program 1 times [2023-08-25 20:50:46,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:46,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811970135] [2023-08-25 20:50:46,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:46,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:46,555 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 20:50:46,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:46,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811970135] [2023-08-25 20:50:46,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811970135] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:46,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:46,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:50:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242464894] [2023-08-25 20:50:46,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:46,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:50:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:50:46,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:50:46,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 623 [2023-08-25 20:50:46,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:46,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 623 [2023-08-25 20:50:46,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:46,669 INFO L124 PetriNetUnfolderBase]: 176/353 cut-off events. [2023-08-25 20:50:46,670 INFO L125 PetriNetUnfolderBase]: For 70/84 co-relation queries the response was YES. [2023-08-25 20:50:46,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 353 events. 176/353 cut-off events. For 70/84 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1347 event pairs, 115 based on Foata normal form. 8/307 useless extension candidates. Maximal degree in co-relation 814. Up to 294 conditions per place. [2023-08-25 20:50:46,672 INFO L140 encePairwiseOnDemand]: 617/623 looper letters, 24 selfloop transitions, 2 changer transitions 6/42 dead transitions. [2023-08-25 20:50:46,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 179 flow [2023-08-25 20:50:46,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:50:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:50:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 948 transitions. [2023-08-25 20:50:46,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38041733547351525 [2023-08-25 20:50:46,675 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 948 transitions. [2023-08-25 20:50:46,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 948 transitions. [2023-08-25 20:50:46,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:46,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 948 transitions. [2023-08-25 20:50:46,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,684 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,684 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 97 flow. Second operand 4 states and 948 transitions. [2023-08-25 20:50:46,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 179 flow [2023-08-25 20:50:46,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:50:46,686 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 108 flow [2023-08-25 20:50:46,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-08-25 20:50:46,687 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -48 predicate places. [2023-08-25 20:50:46,687 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 108 flow [2023-08-25 20:50:46,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 231.75) internal successors, (927), 4 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:46,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:46,688 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] [2023-08-25 20:50:46,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 20:50:46,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:46,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:46,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1529803319, now seen corresponding path program 1 times [2023-08-25 20:50:46,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:46,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693604331] [2023-08-25 20:50:46,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:46,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:47,009 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 20:50:47,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:47,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693604331] [2023-08-25 20:50:47,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693604331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:47,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:47,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 20:50:47,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918318475] [2023-08-25 20:50:47,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 20:50:47,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:47,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 20:50:47,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 20:50:47,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:47,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 108 flow. Second operand has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:47,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:47,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:47,221 INFO L124 PetriNetUnfolderBase]: 567/879 cut-off events. [2023-08-25 20:50:47,221 INFO L125 PetriNetUnfolderBase]: For 245/245 co-relation queries the response was YES. [2023-08-25 20:50:47,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2268 conditions, 879 events. 567/879 cut-off events. For 245/245 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3338 event pairs, 374 based on Foata normal form. 0/754 useless extension candidates. Maximal degree in co-relation 2261. Up to 827 conditions per place. [2023-08-25 20:50:47,226 INFO L140 encePairwiseOnDemand]: 618/623 looper letters, 50 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2023-08-25 20:50:47,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 270 flow [2023-08-25 20:50:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:50:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:50:47,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1407 transitions. [2023-08-25 20:50:47,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37640449438202245 [2023-08-25 20:50:47,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1407 transitions. [2023-08-25 20:50:47,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1407 transitions. [2023-08-25 20:50:47,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:47,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1407 transitions. [2023-08-25 20:50:47,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,241 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,242 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 108 flow. Second operand 6 states and 1407 transitions. [2023-08-25 20:50:47,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 270 flow [2023-08-25 20:50:47,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 266 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 20:50:47,243 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 110 flow [2023-08-25 20:50:47,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-08-25 20:50:47,244 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -46 predicate places. [2023-08-25 20:50:47,244 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 110 flow [2023-08-25 20:50:47,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:47,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 20:50:47,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:47,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1475981560, now seen corresponding path program 1 times [2023-08-25 20:50:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749064960] [2023-08-25 20:50:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:47,794 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 20:50:47,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:47,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749064960] [2023-08-25 20:50:47,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749064960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:47,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:47,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:47,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258370138] [2023-08-25 20:50:47,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:47,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:47,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:47,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:47,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:47,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 110 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:47,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:47,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:47,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:48,069 INFO L124 PetriNetUnfolderBase]: 250/458 cut-off events. [2023-08-25 20:50:48,069 INFO L125 PetriNetUnfolderBase]: For 57/90 co-relation queries the response was YES. [2023-08-25 20:50:48,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1120 conditions, 458 events. 250/458 cut-off events. For 57/90 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1805 event pairs, 5 based on Foata normal form. 10/413 useless extension candidates. Maximal degree in co-relation 1113. Up to 265 conditions per place. [2023-08-25 20:50:48,072 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 55 selfloop transitions, 17 changer transitions 5/85 dead transitions. [2023-08-25 20:50:48,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 410 flow [2023-08-25 20:50:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2333 transitions. [2023-08-25 20:50:48,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37447833065810593 [2023-08-25 20:50:48,079 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2333 transitions. [2023-08-25 20:50:48,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2333 transitions. [2023-08-25 20:50:48,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:48,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2333 transitions. [2023-08-25 20:50:48,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.3) internal successors, (2333), 10 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,094 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,095 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 110 flow. Second operand 10 states and 2333 transitions. [2023-08-25 20:50:48,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 410 flow [2023-08-25 20:50:48,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 397 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 20:50:48,097 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 213 flow [2023-08-25 20:50:48,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=213, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2023-08-25 20:50:48,098 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -35 predicate places. [2023-08-25 20:50:48,098 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 213 flow [2023-08-25 20:50:48,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:48,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:48,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 20:50:48,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:48,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:48,100 INFO L85 PathProgramCache]: Analyzing trace with hash 773302470, now seen corresponding path program 2 times [2023-08-25 20:50:48,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:48,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261454028] [2023-08-25 20:50:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:48,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:48,148 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 20:50:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:48,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261454028] [2023-08-25 20:50:48,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261454028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:48,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:48,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 20:50:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474716828] [2023-08-25 20:50:48,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:48,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 20:50:48,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:48,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 20:50:48,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 20:50:48,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 623 [2023-08-25 20:50:48,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:48,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 623 [2023-08-25 20:50:48,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:48,224 INFO L124 PetriNetUnfolderBase]: 205/395 cut-off events. [2023-08-25 20:50:48,224 INFO L125 PetriNetUnfolderBase]: For 247/271 co-relation queries the response was YES. [2023-08-25 20:50:48,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1196 conditions, 395 events. 205/395 cut-off events. For 247/271 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1438 event pairs, 41 based on Foata normal form. 8/379 useless extension candidates. Maximal degree in co-relation 1183. Up to 344 conditions per place. [2023-08-25 20:50:48,227 INFO L140 encePairwiseOnDemand]: 619/623 looper letters, 40 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2023-08-25 20:50:48,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 300 flow [2023-08-25 20:50:48,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 20:50:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 20:50:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 767 transitions. [2023-08-25 20:50:48,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41037988228999467 [2023-08-25 20:50:48,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 767 transitions. [2023-08-25 20:50:48,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 767 transitions. [2023-08-25 20:50:48,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:48,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 767 transitions. [2023-08-25 20:50:48,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.66666666666666) internal successors, (767), 3 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 623.0) internal successors, (2492), 4 states have internal predecessors, (2492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,235 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 213 flow. Second operand 3 states and 767 transitions. [2023-08-25 20:50:48,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 300 flow [2023-08-25 20:50:48,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 52 transitions, 288 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 20:50:48,239 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 204 flow [2023-08-25 20:50:48,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2023-08-25 20:50:48,239 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -37 predicate places. [2023-08-25 20:50:48,240 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 204 flow [2023-08-25 20:50:48,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:48,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:48,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 20:50:48,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:48,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:48,241 INFO L85 PathProgramCache]: Analyzing trace with hash 722682562, now seen corresponding path program 3 times [2023-08-25 20:50:48,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:48,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118377568] [2023-08-25 20:50:48,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:48,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:48,765 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 20:50:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:48,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118377568] [2023-08-25 20:50:48,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118377568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:48,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:48,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174919356] [2023-08-25 20:50:48,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:48,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:48,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:48,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:48,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:48,770 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:48,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 204 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:48,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:48,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:48,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:49,053 INFO L124 PetriNetUnfolderBase]: 238/476 cut-off events. [2023-08-25 20:50:49,053 INFO L125 PetriNetUnfolderBase]: For 416/453 co-relation queries the response was YES. [2023-08-25 20:50:49,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 476 events. 238/476 cut-off events. For 416/453 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2003 event pairs, 35 based on Foata normal form. 5/450 useless extension candidates. Maximal degree in co-relation 1481. Up to 262 conditions per place. [2023-08-25 20:50:49,057 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 52 selfloop transitions, 23 changer transitions 5/88 dead transitions. [2023-08-25 20:50:49,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 88 transitions, 549 flow [2023-08-25 20:50:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:49,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2330 transitions. [2023-08-25 20:50:49,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3739967897271268 [2023-08-25 20:50:49,065 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2330 transitions. [2023-08-25 20:50:49,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2330 transitions. [2023-08-25 20:50:49,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:49,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2330 transitions. [2023-08-25 20:50:49,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,082 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,082 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 204 flow. Second operand 10 states and 2330 transitions. [2023-08-25 20:50:49,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 88 transitions, 549 flow [2023-08-25 20:50:49,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 88 transitions, 530 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-25 20:50:49,087 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 364 flow [2023-08-25 20:50:49,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=364, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2023-08-25 20:50:49,088 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -24 predicate places. [2023-08-25 20:50:49,088 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 364 flow [2023-08-25 20:50:49,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,089 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:49,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:49,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 20:50:49,089 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:49,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:49,090 INFO L85 PathProgramCache]: Analyzing trace with hash 756442960, now seen corresponding path program 4 times [2023-08-25 20:50:49,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:49,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353008720] [2023-08-25 20:50:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:49,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:49,603 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 20:50:49,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:49,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353008720] [2023-08-25 20:50:49,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353008720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:49,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:49,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:49,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117837309] [2023-08-25 20:50:49,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:49,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:49,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:49,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:49,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:49,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 364 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:49,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:49,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:49,897 INFO L124 PetriNetUnfolderBase]: 260/518 cut-off events. [2023-08-25 20:50:49,898 INFO L125 PetriNetUnfolderBase]: For 756/780 co-relation queries the response was YES. [2023-08-25 20:50:49,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1855 conditions, 518 events. 260/518 cut-off events. For 756/780 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2200 event pairs, 17 based on Foata normal form. 10/498 useless extension candidates. Maximal degree in co-relation 1837. Up to 288 conditions per place. [2023-08-25 20:50:49,902 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 59 selfloop transitions, 24 changer transitions 5/96 dead transitions. [2023-08-25 20:50:49,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 96 transitions, 688 flow [2023-08-25 20:50:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:49,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2331 transitions. [2023-08-25 20:50:49,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3741573033707865 [2023-08-25 20:50:49,908 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2331 transitions. [2023-08-25 20:50:49,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2331 transitions. [2023-08-25 20:50:49,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:49,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2331 transitions. [2023-08-25 20:50:49,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.1) internal successors, (2331), 10 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,923 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,924 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 364 flow. Second operand 10 states and 2331 transitions. [2023-08-25 20:50:49,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 96 transitions, 688 flow [2023-08-25 20:50:49,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 96 transitions, 650 flow, removed 18 selfloop flow, removed 2 redundant places. [2023-08-25 20:50:49,929 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 418 flow [2023-08-25 20:50:49,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=418, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2023-08-25 20:50:49,930 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -16 predicate places. [2023-08-25 20:50:49,930 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 418 flow [2023-08-25 20:50:49,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:49,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:49,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:49,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 20:50:49,932 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:49,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash -547659764, now seen corresponding path program 5 times [2023-08-25 20:50:49,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:49,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332927352] [2023-08-25 20:50:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:50,436 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 20:50:50,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:50,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332927352] [2023-08-25 20:50:50,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332927352] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:50,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:50,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:50,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804380081] [2023-08-25 20:50:50,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:50,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:50,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:50,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:50,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:50,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:50,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 418 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:50,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:50,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:50,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:50,729 INFO L124 PetriNetUnfolderBase]: 285/579 cut-off events. [2023-08-25 20:50:50,729 INFO L125 PetriNetUnfolderBase]: For 763/809 co-relation queries the response was YES. [2023-08-25 20:50:50,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 579 events. 285/579 cut-off events. For 763/809 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2606 event pairs, 43 based on Foata normal form. 5/545 useless extension candidates. Maximal degree in co-relation 2098. Up to 321 conditions per place. [2023-08-25 20:50:50,734 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 60 selfloop transitions, 29 changer transitions 5/102 dead transitions. [2023-08-25 20:50:50,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 102 transitions, 786 flow [2023-08-25 20:50:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2333 transitions. [2023-08-25 20:50:50,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37447833065810593 [2023-08-25 20:50:50,741 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2333 transitions. [2023-08-25 20:50:50,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2333 transitions. [2023-08-25 20:50:50,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:50,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2333 transitions. [2023-08-25 20:50:50,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.3) internal successors, (2333), 10 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:50,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:50,755 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:50,755 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 418 flow. Second operand 10 states and 2333 transitions. [2023-08-25 20:50:50,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 102 transitions, 786 flow [2023-08-25 20:50:50,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 102 transitions, 730 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-25 20:50:50,761 INFO L231 Difference]: Finished difference. Result has 78 places, 72 transitions, 522 flow [2023-08-25 20:50:50,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=522, PETRI_PLACES=78, PETRI_TRANSITIONS=72} [2023-08-25 20:50:50,762 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -12 predicate places. [2023-08-25 20:50:50,762 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 72 transitions, 522 flow [2023-08-25 20:50:50,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:50,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:50,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:50,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 20:50:50,763 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:50,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:50,764 INFO L85 PathProgramCache]: Analyzing trace with hash -322862752, now seen corresponding path program 6 times [2023-08-25 20:50:50,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:50,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333755151] [2023-08-25 20:50:50,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:50,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:51,253 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 20:50:51,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:51,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333755151] [2023-08-25 20:50:51,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333755151] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:51,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:51,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:51,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037609058] [2023-08-25 20:50:51,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:51,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:51,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:51,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:51,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:51,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:51,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 72 transitions, 522 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:51,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:51,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:51,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:51,591 INFO L124 PetriNetUnfolderBase]: 307/615 cut-off events. [2023-08-25 20:50:51,591 INFO L125 PetriNetUnfolderBase]: For 962/993 co-relation queries the response was YES. [2023-08-25 20:50:51,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2380 conditions, 615 events. 307/615 cut-off events. For 962/993 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2840 event pairs, 21 based on Foata normal form. 13/590 useless extension candidates. Maximal degree in co-relation 2358. Up to 269 conditions per place. [2023-08-25 20:50:51,597 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 62 selfloop transitions, 36 changer transitions 5/111 dead transitions. [2023-08-25 20:50:51,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 111 transitions, 879 flow [2023-08-25 20:50:51,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 20:50:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 20:50:51,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2564 transitions. [2023-08-25 20:50:51,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3741427112213629 [2023-08-25 20:50:51,604 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2564 transitions. [2023-08-25 20:50:51,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2564 transitions. [2023-08-25 20:50:51,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:51,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2564 transitions. [2023-08-25 20:50:51,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 233.0909090909091) internal successors, (2564), 11 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:51,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 623.0) internal successors, (7476), 12 states have internal predecessors, (7476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:51,657 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 623.0) internal successors, (7476), 12 states have internal predecessors, (7476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:51,657 INFO L175 Difference]: Start difference. First operand has 78 places, 72 transitions, 522 flow. Second operand 11 states and 2564 transitions. [2023-08-25 20:50:51,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 111 transitions, 879 flow [2023-08-25 20:50:51,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 111 transitions, 820 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-25 20:50:51,665 INFO L231 Difference]: Finished difference. Result has 86 places, 77 transitions, 614 flow [2023-08-25 20:50:51,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=614, PETRI_PLACES=86, PETRI_TRANSITIONS=77} [2023-08-25 20:50:51,665 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -4 predicate places. [2023-08-25 20:50:51,665 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 77 transitions, 614 flow [2023-08-25 20:50:51,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:51,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:51,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:51,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 20:50:51,667 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:51,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:51,667 INFO L85 PathProgramCache]: Analyzing trace with hash 386988192, now seen corresponding path program 7 times [2023-08-25 20:50:51,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:51,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095356960] [2023-08-25 20:50:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:52,129 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 20:50:52,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:52,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095356960] [2023-08-25 20:50:52,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095356960] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:52,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:52,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:52,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398758587] [2023-08-25 20:50:52,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:52,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:52,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:52,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:52,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:52,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:52,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 77 transitions, 614 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:52,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:52,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:52,416 INFO L124 PetriNetUnfolderBase]: 305/653 cut-off events. [2023-08-25 20:50:52,416 INFO L125 PetriNetUnfolderBase]: For 1626/1652 co-relation queries the response was YES. [2023-08-25 20:50:52,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2530 conditions, 653 events. 305/653 cut-off events. For 1626/1652 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3147 event pairs, 35 based on Foata normal form. 9/642 useless extension candidates. Maximal degree in co-relation 2506. Up to 384 conditions per place. [2023-08-25 20:50:52,422 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 64 selfloop transitions, 25 changer transitions 8/105 dead transitions. [2023-08-25 20:50:52,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 105 transitions, 897 flow [2023-08-25 20:50:52,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:52,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:52,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2327 transitions. [2023-08-25 20:50:52,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37351524879614767 [2023-08-25 20:50:52,429 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2327 transitions. [2023-08-25 20:50:52,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2327 transitions. [2023-08-25 20:50:52,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:52,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2327 transitions. [2023-08-25 20:50:52,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.7) internal successors, (2327), 10 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,443 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,443 INFO L175 Difference]: Start difference. First operand has 86 places, 77 transitions, 614 flow. Second operand 10 states and 2327 transitions. [2023-08-25 20:50:52,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 105 transitions, 897 flow [2023-08-25 20:50:52,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 105 transitions, 835 flow, removed 14 selfloop flow, removed 6 redundant places. [2023-08-25 20:50:52,452 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 596 flow [2023-08-25 20:50:52,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=552, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=596, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2023-08-25 20:50:52,453 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2023-08-25 20:50:52,453 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 596 flow [2023-08-25 20:50:52,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:52,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:52,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 20:50:52,454 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:52,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash 409141206, now seen corresponding path program 8 times [2023-08-25 20:50:52,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570999659] [2023-08-25 20:50:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:52,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:52,895 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 20:50:52,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:52,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570999659] [2023-08-25 20:50:52,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570999659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:52,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:52,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:52,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900523315] [2023-08-25 20:50:52,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:52,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:52,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:52,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 596 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:52,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:52,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:52,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:53,199 INFO L124 PetriNetUnfolderBase]: 301/657 cut-off events. [2023-08-25 20:50:53,199 INFO L125 PetriNetUnfolderBase]: For 1464/1499 co-relation queries the response was YES. [2023-08-25 20:50:53,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2528 conditions, 657 events. 301/657 cut-off events. For 1464/1499 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3226 event pairs, 53 based on Foata normal form. 4/639 useless extension candidates. Maximal degree in co-relation 2502. Up to 380 conditions per place. [2023-08-25 20:50:53,205 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 63 selfloop transitions, 25 changer transitions 8/104 dead transitions. [2023-08-25 20:50:53,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 104 transitions, 883 flow [2023-08-25 20:50:53,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:53,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2329 transitions. [2023-08-25 20:50:53,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3738362760834671 [2023-08-25 20:50:53,212 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2329 transitions. [2023-08-25 20:50:53,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2329 transitions. [2023-08-25 20:50:53,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:53,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2329 transitions. [2023-08-25 20:50:53,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.9) internal successors, (2329), 10 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,226 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,226 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 596 flow. Second operand 10 states and 2329 transitions. [2023-08-25 20:50:53,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 104 transitions, 883 flow [2023-08-25 20:50:53,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 104 transitions, 827 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-25 20:50:53,235 INFO L231 Difference]: Finished difference. Result has 90 places, 75 transitions, 586 flow [2023-08-25 20:50:53,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=586, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2023-08-25 20:50:53,236 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2023-08-25 20:50:53,236 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 586 flow [2023-08-25 20:50:53,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:53,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:53,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 20:50:53,237 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:53,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:53,237 INFO L85 PathProgramCache]: Analyzing trace with hash -459988994, now seen corresponding path program 9 times [2023-08-25 20:50:53,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:53,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923764252] [2023-08-25 20:50:53,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:53,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:53,674 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 20:50:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923764252] [2023-08-25 20:50:53,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923764252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:53,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:53,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:53,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757241224] [2023-08-25 20:50:53,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:53,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:53,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:53,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:53,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 586 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:53,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:53,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:53,964 INFO L124 PetriNetUnfolderBase]: 305/661 cut-off events. [2023-08-25 20:50:53,964 INFO L125 PetriNetUnfolderBase]: For 1597/1655 co-relation queries the response was YES. [2023-08-25 20:50:53,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 661 events. 305/661 cut-off events. For 1597/1655 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3306 event pairs, 47 based on Foata normal form. 7/646 useless extension candidates. Maximal degree in co-relation 2533. Up to 375 conditions per place. [2023-08-25 20:50:53,970 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 64 selfloop transitions, 27 changer transitions 5/104 dead transitions. [2023-08-25 20:50:53,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 104 transitions, 881 flow [2023-08-25 20:50:53,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:53,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2330 transitions. [2023-08-25 20:50:53,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3739967897271268 [2023-08-25 20:50:53,978 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2330 transitions. [2023-08-25 20:50:53,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2330 transitions. [2023-08-25 20:50:53,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:53,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2330 transitions. [2023-08-25 20:50:53,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.0) internal successors, (2330), 10 states have internal predecessors, (2330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,995 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:53,995 INFO L175 Difference]: Start difference. First operand has 90 places, 75 transitions, 586 flow. Second operand 10 states and 2330 transitions. [2023-08-25 20:50:53,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 104 transitions, 881 flow [2023-08-25 20:50:54,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 104 transitions, 827 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-25 20:50:54,005 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 605 flow [2023-08-25 20:50:54,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=605, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2023-08-25 20:50:54,006 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2023-08-25 20:50:54,006 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 605 flow [2023-08-25 20:50:54,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:54,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 20:50:54,007 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:54,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2139462206, now seen corresponding path program 10 times [2023-08-25 20:50:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:54,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879205455] [2023-08-25 20:50:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:54,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:54,484 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 20:50:54,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:54,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879205455] [2023-08-25 20:50:54,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879205455] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:54,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:54,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:54,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584070231] [2023-08-25 20:50:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:54,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:54,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:54,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:54,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 605 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:54,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:54,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:54,820 INFO L124 PetriNetUnfolderBase]: 301/673 cut-off events. [2023-08-25 20:50:54,820 INFO L125 PetriNetUnfolderBase]: For 1598/1648 co-relation queries the response was YES. [2023-08-25 20:50:54,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2559 conditions, 673 events. 301/673 cut-off events. For 1598/1648 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3420 event pairs, 53 based on Foata normal form. 8/663 useless extension candidates. Maximal degree in co-relation 2533. Up to 371 conditions per place. [2023-08-25 20:50:54,827 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 62 selfloop transitions, 30 changer transitions 5/105 dead transitions. [2023-08-25 20:50:54,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 105 transitions, 906 flow [2023-08-25 20:50:54,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2333 transitions. [2023-08-25 20:50:54,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37447833065810593 [2023-08-25 20:50:54,831 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2333 transitions. [2023-08-25 20:50:54,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2333 transitions. [2023-08-25 20:50:54,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:54,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2333 transitions. [2023-08-25 20:50:54,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 233.3) internal successors, (2333), 10 states have internal predecessors, (2333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,842 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 605 flow. Second operand 10 states and 2333 transitions. [2023-08-25 20:50:54,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 105 transitions, 906 flow [2023-08-25 20:50:54,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 105 transitions, 846 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-25 20:50:54,852 INFO L231 Difference]: Finished difference. Result has 92 places, 76 transitions, 607 flow [2023-08-25 20:50:54,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=607, PETRI_PLACES=92, PETRI_TRANSITIONS=76} [2023-08-25 20:50:54,852 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 2 predicate places. [2023-08-25 20:50:54,852 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 76 transitions, 607 flow [2023-08-25 20:50:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:54,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:54,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:54,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 20:50:54,853 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:54,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1811094696, now seen corresponding path program 11 times [2023-08-25 20:50:54,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:54,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500230338] [2023-08-25 20:50:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:54,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:55,293 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 20:50:55,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:55,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500230338] [2023-08-25 20:50:55,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500230338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:55,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:55,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 20:50:55,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857802654] [2023-08-25 20:50:55,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:55,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-25 20:50:55,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:55,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-25 20:50:55,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-25 20:50:55,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 623 [2023-08-25 20:50:55,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 76 transitions, 607 flow. Second operand has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:55,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 623 [2023-08-25 20:50:55,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:55,580 INFO L124 PetriNetUnfolderBase]: 299/679 cut-off events. [2023-08-25 20:50:55,580 INFO L125 PetriNetUnfolderBase]: For 1558/1607 co-relation queries the response was YES. [2023-08-25 20:50:55,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2550 conditions, 679 events. 299/679 cut-off events. For 1558/1607 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3459 event pairs, 57 based on Foata normal form. 7/672 useless extension candidates. Maximal degree in co-relation 2524. Up to 386 conditions per place. [2023-08-25 20:50:55,586 INFO L140 encePairwiseOnDemand]: 612/623 looper letters, 60 selfloop transitions, 27 changer transitions 8/103 dead transitions. [2023-08-25 20:50:55,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 103 transitions, 890 flow [2023-08-25 20:50:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 20:50:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 20:50:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2329 transitions. [2023-08-25 20:50:55,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3738362760834671 [2023-08-25 20:50:55,589 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2329 transitions. [2023-08-25 20:50:55,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2329 transitions. [2023-08-25 20:50:55,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:55,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2329 transitions. [2023-08-25 20:50:55,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 232.9) internal successors, (2329), 10 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,620 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 623.0) internal successors, (6853), 11 states have internal predecessors, (6853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,620 INFO L175 Difference]: Start difference. First operand has 92 places, 76 transitions, 607 flow. Second operand 10 states and 2329 transitions. [2023-08-25 20:50:55,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 103 transitions, 890 flow [2023-08-25 20:50:55,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 103 transitions, 822 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-08-25 20:50:55,632 INFO L231 Difference]: Finished difference. Result has 94 places, 75 transitions, 587 flow [2023-08-25 20:50:55,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=587, PETRI_PLACES=94, PETRI_TRANSITIONS=75} [2023-08-25 20:50:55,633 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-08-25 20:50:55,633 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 75 transitions, 587 flow [2023-08-25 20:50:55,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 227.9) internal successors, (2279), 10 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:55,634 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] [2023-08-25 20:50:55,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 20:50:55,634 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:55,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:55,634 INFO L85 PathProgramCache]: Analyzing trace with hash -19193957, now seen corresponding path program 1 times [2023-08-25 20:50:55,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:55,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248011809] [2023-08-25 20:50:55,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:55,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:50:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248011809] [2023-08-25 20:50:55,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248011809] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 20:50:55,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 20:50:55,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 20:50:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734723509] [2023-08-25 20:50:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 20:50:55,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 20:50:55,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:55,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 20:50:55,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 20:50:55,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 623 [2023-08-25 20:50:55,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 75 transitions, 587 flow. Second operand has 4 states, 4 states have (on average 251.25) internal successors, (1005), 4 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:55,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 623 [2023-08-25 20:50:55,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:55,884 INFO L124 PetriNetUnfolderBase]: 445/948 cut-off events. [2023-08-25 20:50:55,884 INFO L125 PetriNetUnfolderBase]: For 2868/2924 co-relation queries the response was YES. [2023-08-25 20:50:55,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3600 conditions, 948 events. 445/948 cut-off events. For 2868/2924 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4927 event pairs, 118 based on Foata normal form. 20/955 useless extension candidates. Maximal degree in co-relation 3574. Up to 354 conditions per place. [2023-08-25 20:50:55,892 INFO L140 encePairwiseOnDemand]: 619/623 looper letters, 63 selfloop transitions, 9 changer transitions 31/113 dead transitions. [2023-08-25 20:50:55,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 113 transitions, 1004 flow [2023-08-25 20:50:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 20:50:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 20:50:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1042 transitions. [2023-08-25 20:50:55,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41813804173354735 [2023-08-25 20:50:55,895 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1042 transitions. [2023-08-25 20:50:55,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1042 transitions. [2023-08-25 20:50:55,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:55,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1042 transitions. [2023-08-25 20:50:55,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 260.5) internal successors, (1042), 4 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,902 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 623.0) internal successors, (3115), 5 states have internal predecessors, (3115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,902 INFO L175 Difference]: Start difference. First operand has 94 places, 75 transitions, 587 flow. Second operand 4 states and 1042 transitions. [2023-08-25 20:50:55,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 113 transitions, 1004 flow [2023-08-25 20:50:55,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 113 transitions, 934 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-25 20:50:55,913 INFO L231 Difference]: Finished difference. Result has 88 places, 50 transitions, 334 flow [2023-08-25 20:50:55,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=334, PETRI_PLACES=88, PETRI_TRANSITIONS=50} [2023-08-25 20:50:55,913 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -2 predicate places. [2023-08-25 20:50:55,913 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 50 transitions, 334 flow [2023-08-25 20:50:55,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 251.25) internal successors, (1005), 4 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:55,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:55,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:50:55,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 20:50:55,914 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:55,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:55,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1996190145, now seen corresponding path program 1 times [2023-08-25 20:50:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:55,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987533803] [2023-08-25 20:50:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:55,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:56,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987533803] [2023-08-25 20:50:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987533803] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:50:56,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694021027] [2023-08-25 20:50:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:56,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:50:56,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:50:56,025 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 20:50:56,055 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 20:50:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:56,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-25 20:50:56,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:50:56,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:56,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:50:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694021027] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:50:56,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:50:56,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-08-25 20:50:56,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402253008] [2023-08-25 20:50:56,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:50:56,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 20:50:56,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:56,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 20:50:56,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-08-25 20:50:56,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 623 [2023-08-25 20:50:56,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 50 transitions, 334 flow. Second operand has 11 states, 11 states have (on average 229.8181818181818) internal successors, (2528), 11 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:56,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:56,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 623 [2023-08-25 20:50:56,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:50:56,551 INFO L124 PetriNetUnfolderBase]: 372/771 cut-off events. [2023-08-25 20:50:56,551 INFO L125 PetriNetUnfolderBase]: For 3035/3049 co-relation queries the response was YES. [2023-08-25 20:50:56,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3162 conditions, 771 events. 372/771 cut-off events. For 3035/3049 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3505 event pairs, 221 based on Foata normal form. 34/795 useless extension candidates. Maximal degree in co-relation 3136. Up to 555 conditions per place. [2023-08-25 20:50:56,558 INFO L140 encePairwiseOnDemand]: 618/623 looper letters, 38 selfloop transitions, 3 changer transitions 28/79 dead transitions. [2023-08-25 20:50:56,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 684 flow [2023-08-25 20:50:56,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 20:50:56,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 20:50:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1405 transitions. [2023-08-25 20:50:56,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37586944890315677 [2023-08-25 20:50:56,561 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1405 transitions. [2023-08-25 20:50:56,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1405 transitions. [2023-08-25 20:50:56,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:50:56,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1405 transitions. [2023-08-25 20:50:56,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.16666666666666) internal successors, (1405), 6 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:56,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:56,567 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 623.0) internal successors, (4361), 7 states have internal predecessors, (4361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:56,567 INFO L175 Difference]: Start difference. First operand has 88 places, 50 transitions, 334 flow. Second operand 6 states and 1405 transitions. [2023-08-25 20:50:56,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 684 flow [2023-08-25 20:50:56,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 79 transitions, 578 flow, removed 43 selfloop flow, removed 10 redundant places. [2023-08-25 20:50:56,575 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 298 flow [2023-08-25 20:50:56,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=67, PETRI_TRANSITIONS=51} [2023-08-25 20:50:56,575 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, -23 predicate places. [2023-08-25 20:50:56,575 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 298 flow [2023-08-25 20:50:56,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 229.8181818181818) internal successors, (2528), 11 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:56,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:50:56,576 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] [2023-08-25 20:50:56,585 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 20:50:56,783 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,SelfDestructingSolverStorable17 [2023-08-25 20:50:56,783 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:50:56,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:50:56,784 INFO L85 PathProgramCache]: Analyzing trace with hash -478561552, now seen corresponding path program 2 times [2023-08-25 20:50:56,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:50:56,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353995160] [2023-08-25 20:50:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:50:56,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:50:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:50:57,533 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:57,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:50:57,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353995160] [2023-08-25 20:50:57,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353995160] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:50:57,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484199667] [2023-08-25 20:50:57,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 20:50:57,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:50:57,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:50:57,535 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 20:50:57,538 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 20:50:57,813 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 20:50:57,814 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:50:57,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-25 20:50:57,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:50:58,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:50:58,012 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2023-08-25 20:50:58,067 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 3 [2023-08-25 20:50:58,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:58,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:50:58,281 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:50:58,282 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 45 treesize of output 37 [2023-08-25 20:50:58,286 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-08-25 20:50:58,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:50:58,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484199667] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:50:58,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:50:58,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2023-08-25 20:50:58,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36409765] [2023-08-25 20:50:58,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:50:58,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 20:50:58,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:50:58,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 20:50:58,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2023-08-25 20:50:58,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:50:58,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 51 transitions, 298 flow. Second operand has 25 states, 25 states have (on average 193.48) internal successors, (4837), 25 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:50:58,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:50:58,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:50:58,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:51:02,565 INFO L124 PetriNetUnfolderBase]: 1806/3387 cut-off events. [2023-08-25 20:51:02,565 INFO L125 PetriNetUnfolderBase]: For 5693/5693 co-relation queries the response was YES. [2023-08-25 20:51:02,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11520 conditions, 3387 events. 1806/3387 cut-off events. For 5693/5693 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 20232 event pairs, 265 based on Foata normal form. 0/3218 useless extension candidates. Maximal degree in co-relation 11499. Up to 663 conditions per place. [2023-08-25 20:51:02,600 INFO L140 encePairwiseOnDemand]: 611/623 looper letters, 407 selfloop transitions, 93 changer transitions 0/504 dead transitions. [2023-08-25 20:51:02,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 504 transitions, 3360 flow [2023-08-25 20:51:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-08-25 20:51:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-08-25 20:51:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7699 transitions. [2023-08-25 20:51:02,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32520909014108307 [2023-08-25 20:51:02,613 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7699 transitions. [2023-08-25 20:51:02,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7699 transitions. [2023-08-25 20:51:02,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:51:02,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7699 transitions. [2023-08-25 20:51:02,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 202.60526315789474) internal successors, (7699), 38 states have internal predecessors, (7699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:02,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 623.0) internal successors, (24297), 39 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:02,646 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 623.0) internal successors, (24297), 39 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:02,646 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 298 flow. Second operand 38 states and 7699 transitions. [2023-08-25 20:51:02,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 504 transitions, 3360 flow [2023-08-25 20:51:02,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 504 transitions, 3298 flow, removed 29 selfloop flow, removed 4 redundant places. [2023-08-25 20:51:02,663 INFO L231 Difference]: Finished difference. Result has 112 places, 164 transitions, 1558 flow [2023-08-25 20:51:02,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=1558, PETRI_PLACES=112, PETRI_TRANSITIONS=164} [2023-08-25 20:51:02,664 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 22 predicate places. [2023-08-25 20:51:02,664 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 164 transitions, 1558 flow [2023-08-25 20:51:02,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 193.48) internal successors, (4837), 25 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:02,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:51:02,665 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] [2023-08-25 20:51:02,674 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 20:51:02,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:02,875 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:51:02,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:51:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -274119252, now seen corresponding path program 3 times [2023-08-25 20:51:02,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:51:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885945604] [2023-08-25 20:51:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:51:02,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:51:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:51:03,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:03,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:51:03,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885945604] [2023-08-25 20:51:03,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885945604] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:51:03,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65628911] [2023-08-25 20:51:03,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 20:51:03,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:03,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:51:03,317 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 20:51:03,320 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 20:51:03,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 20:51:03,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:51:03,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 24 conjunts are in the unsatisfiable core [2023-08-25 20:51:03,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:51:04,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:04,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:51:04,243 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 20:51:04,243 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 25 treesize of output 12 [2023-08-25 20:51:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:04,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65628911] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:51:04,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:51:04,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2023-08-25 20:51:04,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094268105] [2023-08-25 20:51:04,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:51:04,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-08-25 20:51:04,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:51:04,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-08-25 20:51:04,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2023-08-25 20:51:04,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 623 [2023-08-25 20:51:04,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 164 transitions, 1558 flow. Second operand has 22 states, 22 states have (on average 213.72727272727272) internal successors, (4702), 22 states have internal predecessors, (4702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:04,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:51:04,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 623 [2023-08-25 20:51:04,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:51:06,662 INFO L124 PetriNetUnfolderBase]: 4011/7579 cut-off events. [2023-08-25 20:51:06,663 INFO L125 PetriNetUnfolderBase]: For 33864/33920 co-relation queries the response was YES. [2023-08-25 20:51:06,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32040 conditions, 7579 events. 4011/7579 cut-off events. For 33864/33920 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 53630 event pairs, 567 based on Foata normal form. 34/7408 useless extension candidates. Maximal degree in co-relation 32008. Up to 2078 conditions per place. [2023-08-25 20:51:06,802 INFO L140 encePairwiseOnDemand]: 614/623 looper letters, 360 selfloop transitions, 191 changer transitions 0/563 dead transitions. [2023-08-25 20:51:06,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 563 transitions, 6122 flow [2023-08-25 20:51:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-25 20:51:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-25 20:51:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4852 transitions. [2023-08-25 20:51:06,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.354005545016781 [2023-08-25 20:51:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4852 transitions. [2023-08-25 20:51:06,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4852 transitions. [2023-08-25 20:51:06,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:51:06,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4852 transitions. [2023-08-25 20:51:06,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 220.54545454545453) internal successors, (4852), 22 states have internal predecessors, (4852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:06,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 623.0) internal successors, (14329), 23 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:06,827 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 623.0) internal successors, (14329), 23 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:06,827 INFO L175 Difference]: Start difference. First operand has 112 places, 164 transitions, 1558 flow. Second operand 22 states and 4852 transitions. [2023-08-25 20:51:06,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 563 transitions, 6122 flow [2023-08-25 20:51:06,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 563 transitions, 4700 flow, removed 707 selfloop flow, removed 5 redundant places. [2023-08-25 20:51:06,969 INFO L231 Difference]: Finished difference. Result has 141 places, 330 transitions, 3267 flow [2023-08-25 20:51:06,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3267, PETRI_PLACES=141, PETRI_TRANSITIONS=330} [2023-08-25 20:51:06,970 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 51 predicate places. [2023-08-25 20:51:06,970 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 330 transitions, 3267 flow [2023-08-25 20:51:06,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 213.72727272727272) internal successors, (4702), 22 states have internal predecessors, (4702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:06,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:51:06,971 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] [2023-08-25 20:51:06,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-25 20:51:07,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:07,178 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:51:07,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:51:07,178 INFO L85 PathProgramCache]: Analyzing trace with hash 631993716, now seen corresponding path program 4 times [2023-08-25 20:51:07,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:51:07,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039750498] [2023-08-25 20:51:07,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:51:07,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:51:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:51:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:07,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:51:07,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039750498] [2023-08-25 20:51:07,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039750498] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:51:07,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828791741] [2023-08-25 20:51:07,664 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 20:51:07,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:07,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:51:07,666 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 20:51:07,692 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 20:51:08,054 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 20:51:08,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:51:08,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 18 conjunts are in the unsatisfiable core [2023-08-25 20:51:08,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:51:08,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 20:51:08,144 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2023-08-25 20:51:08,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:51:08,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:51:08,218 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1121 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1121) c_~q~0.base) (+ (* c_~q_front~0 4) c_~q~0.offset)) 0))) is different from false [2023-08-25 20:51:08,235 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:51:08,236 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 45 treesize of output 37 [2023-08-25 20:51:08,239 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-08-25 20:51:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:51:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828791741] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:51:08,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:51:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2023-08-25 20:51:08,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171595501] [2023-08-25 20:51:08,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:51:08,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 20:51:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:51:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 20:51:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=232, Unknown=1, NotChecked=30, Total=306 [2023-08-25 20:51:08,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 623 [2023-08-25 20:51:08,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 330 transitions, 3267 flow. Second operand has 18 states, 18 states have (on average 204.22222222222223) internal successors, (3676), 18 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:08,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:51:08,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 623 [2023-08-25 20:51:08,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:51:10,708 INFO L124 PetriNetUnfolderBase]: 5355/9689 cut-off events. [2023-08-25 20:51:10,708 INFO L125 PetriNetUnfolderBase]: For 56420/56476 co-relation queries the response was YES. [2023-08-25 20:51:10,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42954 conditions, 9689 events. 5355/9689 cut-off events. For 56420/56476 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 67142 event pairs, 1296 based on Foata normal form. 147/9784 useless extension candidates. Maximal degree in co-relation 42912. Up to 3757 conditions per place. [2023-08-25 20:51:10,795 INFO L140 encePairwiseOnDemand]: 615/623 looper letters, 331 selfloop transitions, 118 changer transitions 0/457 dead transitions. [2023-08-25 20:51:10,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 457 transitions, 5117 flow [2023-08-25 20:51:10,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 20:51:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 20:51:10,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2523 transitions. [2023-08-25 20:51:10,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33747993579454255 [2023-08-25 20:51:10,800 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2523 transitions. [2023-08-25 20:51:10,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2523 transitions. [2023-08-25 20:51:10,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:51:10,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2523 transitions. [2023-08-25 20:51:10,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 210.25) internal successors, (2523), 12 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:10,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 623.0) internal successors, (8099), 13 states have internal predecessors, (8099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:10,810 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 623.0) internal successors, (8099), 13 states have internal predecessors, (8099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:10,810 INFO L175 Difference]: Start difference. First operand has 141 places, 330 transitions, 3267 flow. Second operand 12 states and 2523 transitions. [2023-08-25 20:51:10,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 457 transitions, 5117 flow [2023-08-25 20:51:11,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 457 transitions, 4984 flow, removed 52 selfloop flow, removed 5 redundant places. [2023-08-25 20:51:11,132 INFO L231 Difference]: Finished difference. Result has 149 places, 341 transitions, 3698 flow [2023-08-25 20:51:11,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=3041, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3698, PETRI_PLACES=149, PETRI_TRANSITIONS=341} [2023-08-25 20:51:11,133 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 59 predicate places. [2023-08-25 20:51:11,133 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 341 transitions, 3698 flow [2023-08-25 20:51:11,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 204.22222222222223) internal successors, (3676), 18 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:11,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:51:11,134 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:51:11,140 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 20:51:11,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:11,337 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:51:11,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:51:11,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1206905849, now seen corresponding path program 1 times [2023-08-25 20:51:11,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:51:11,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438253730] [2023-08-25 20:51:11,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:51:11,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:51:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:51:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:12,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:51:12,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438253730] [2023-08-25 20:51:12,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438253730] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:51:12,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317189822] [2023-08-25 20:51:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:51:12,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:12,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:51:12,591 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 20:51:12,624 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 20:51:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:51:13,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 63 conjunts are in the unsatisfiable core [2023-08-25 20:51:13,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:51:13,235 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 16 treesize of output 12 [2023-08-25 20:51:13,288 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 15 treesize of output 11 [2023-08-25 20:51:13,356 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 20:51:13,415 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 20:51:14,133 INFO L322 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-08-25 20:51:14,134 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 24 treesize of output 10 [2023-08-25 20:51:14,412 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:14,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:51:15,901 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:51:15,901 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 2 case distinctions, treesize of input 76 treesize of output 61 [2023-08-25 20:51:15,913 INFO L322 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2023-08-25 20:51:15,913 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 140 treesize of output 127 [2023-08-25 20:51:15,924 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 20:51:15,924 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 124 treesize of output 100 [2023-08-25 20:51:15,932 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-08-25 20:51:15,933 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 79 treesize of output 67 [2023-08-25 20:51:15,959 INFO L322 Elim1Store]: treesize reduction 25, result has 3.8 percent of original size [2023-08-25 20:51:15,959 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 2 case distinctions, treesize of input 76 treesize of output 1 [2023-08-25 20:51:15,969 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:51:15,970 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 2 case distinctions, treesize of input 38 treesize of output 44 [2023-08-25 20:51:15,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2023-08-25 20:51:15,981 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2023-08-25 20:51:15,985 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2023-08-25 20:51:15,990 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2023-08-25 20:51:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:16,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317189822] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:51:16,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:51:16,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 44 [2023-08-25 20:51:16,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873080448] [2023-08-25 20:51:16,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:51:16,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-08-25 20:51:16,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:51:16,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-08-25 20:51:16,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1883, Unknown=2, NotChecked=0, Total=2070 [2023-08-25 20:51:16,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 623 [2023-08-25 20:51:16,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 341 transitions, 3698 flow. Second operand has 46 states, 46 states have (on average 174.2173913043478) internal successors, (8014), 46 states have internal predecessors, (8014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:16,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:51:16,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 623 [2023-08-25 20:51:16,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:51:28,287 WARN L234 SmtUtils]: Spent 6.29s on a formula simplification. DAG size of input: 75 DAG size of output: 75 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-25 20:51:46,806 INFO L124 PetriNetUnfolderBase]: 21452/34137 cut-off events. [2023-08-25 20:51:46,806 INFO L125 PetriNetUnfolderBase]: For 216912/216912 co-relation queries the response was YES. [2023-08-25 20:51:47,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157688 conditions, 34137 events. 21452/34137 cut-off events. For 216912/216912 co-relation queries the response was YES. Maximal size of possible extension queue 886. Compared 243100 event pairs, 5056 based on Foata normal form. 3/34002 useless extension candidates. Maximal degree in co-relation 157645. Up to 21221 conditions per place. [2023-08-25 20:51:47,198 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 511 selfloop transitions, 401 changer transitions 27/939 dead transitions. [2023-08-25 20:51:47,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 939 transitions, 10066 flow [2023-08-25 20:51:47,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-08-25 20:51:47,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2023-08-25 20:51:47,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 6767 transitions. [2023-08-25 20:51:47,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29356643963385537 [2023-08-25 20:51:47,209 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 6767 transitions. [2023-08-25 20:51:47,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 6767 transitions. [2023-08-25 20:51:47,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:51:47,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 6767 transitions. [2023-08-25 20:51:47,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 182.8918918918919) internal successors, (6767), 37 states have internal predecessors, (6767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:47,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 623.0) internal successors, (23674), 38 states have internal predecessors, (23674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:47,236 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 623.0) internal successors, (23674), 38 states have internal predecessors, (23674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:47,236 INFO L175 Difference]: Start difference. First operand has 149 places, 341 transitions, 3698 flow. Second operand 37 states and 6767 transitions. [2023-08-25 20:51:47,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 939 transitions, 10066 flow [2023-08-25 20:51:49,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 939 transitions, 10004 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-08-25 20:51:49,827 INFO L231 Difference]: Finished difference. Result has 188 places, 614 transitions, 8663 flow [2023-08-25 20:51:49,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=3660, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=8663, PETRI_PLACES=188, PETRI_TRANSITIONS=614} [2023-08-25 20:51:49,827 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 98 predicate places. [2023-08-25 20:51:49,828 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 614 transitions, 8663 flow [2023-08-25 20:51:49,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 174.2173913043478) internal successors, (8014), 46 states have internal predecessors, (8014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:49,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:51:49,829 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:51:49,836 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 20:51:50,029 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,SelfDestructingSolverStorable21 [2023-08-25 20:51:50,029 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:51:50,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:51:50,030 INFO L85 PathProgramCache]: Analyzing trace with hash 197842381, now seen corresponding path program 2 times [2023-08-25 20:51:50,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:51:50,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803923154] [2023-08-25 20:51:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:51:50,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:51:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:51:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:51,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:51:51,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803923154] [2023-08-25 20:51:51,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803923154] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:51:51,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536342892] [2023-08-25 20:51:51,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 20:51:51,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:51:51,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:51:51,231 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 20:51:51,233 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 20:51:52,082 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 20:51:52,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:51:52,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 20:51:52,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:51:52,597 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-08-25 20:51:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:52,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:51:53,693 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:51:53,693 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 51 treesize of output 35 [2023-08-25 20:51:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:51:54,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536342892] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:51:54,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:51:54,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 42 [2023-08-25 20:51:54,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570629117] [2023-08-25 20:51:54,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:51:54,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-08-25 20:51:54,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:51:54,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-08-25 20:51:54,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1711, Unknown=0, NotChecked=0, Total=1892 [2023-08-25 20:51:54,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:51:54,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 614 transitions, 8663 flow. Second operand has 44 states, 44 states have (on average 192.77272727272728) internal successors, (8482), 44 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:51:54,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:51:54,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:51:54,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:52:05,541 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 20:52:23,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-25 20:52:26,943 WARN L539 Checker$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 20:52:34,537 INFO L124 PetriNetUnfolderBase]: 9021/17119 cut-off events. [2023-08-25 20:52:34,537 INFO L125 PetriNetUnfolderBase]: For 145827/145918 co-relation queries the response was YES. [2023-08-25 20:52:34,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89193 conditions, 17119 events. 9021/17119 cut-off events. For 145827/145918 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 140259 event pairs, 1067 based on Foata normal form. 41/17153 useless extension candidates. Maximal degree in co-relation 89140. Up to 6296 conditions per place. [2023-08-25 20:52:34,703 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 577 selfloop transitions, 789 changer transitions 50/1424 dead transitions. [2023-08-25 20:52:34,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 1424 transitions, 20517 flow [2023-08-25 20:52:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-08-25 20:52:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2023-08-25 20:52:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 11892 transitions. [2023-08-25 20:52:34,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31813804173354737 [2023-08-25 20:52:34,719 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 11892 transitions. [2023-08-25 20:52:34,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 11892 transitions. [2023-08-25 20:52:34,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:52:34,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 11892 transitions. [2023-08-25 20:52:34,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 198.2) internal successors, (11892), 60 states have internal predecessors, (11892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:52:34,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 623.0) internal successors, (38003), 61 states have internal predecessors, (38003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:52:34,766 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 623.0) internal successors, (38003), 61 states have internal predecessors, (38003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:52:34,766 INFO L175 Difference]: Start difference. First operand has 188 places, 614 transitions, 8663 flow. Second operand 60 states and 11892 transitions. [2023-08-25 20:52:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 1424 transitions, 20517 flow [2023-08-25 20:52:36,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 1424 transitions, 19883 flow, removed 312 selfloop flow, removed 6 redundant places. [2023-08-25 20:52:36,101 INFO L231 Difference]: Finished difference. Result has 260 places, 1065 transitions, 17750 flow [2023-08-25 20:52:36,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=8339, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=17750, PETRI_PLACES=260, PETRI_TRANSITIONS=1065} [2023-08-25 20:52:36,102 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 170 predicate places. [2023-08-25 20:52:36,102 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 1065 transitions, 17750 flow [2023-08-25 20:52:36,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 192.77272727272728) internal successors, (8482), 44 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:52:36,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:52:36,104 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:52:36,111 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 20:52:36,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:52:36,309 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:52:36,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:52:36,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2004431459, now seen corresponding path program 3 times [2023-08-25 20:52:36,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:52:36,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130801746] [2023-08-25 20:52:36,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:52:36,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:52:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:52:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:37,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:52:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130801746] [2023-08-25 20:52:37,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130801746] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:52:37,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433687301] [2023-08-25 20:52:37,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 20:52:37,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:52:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:52:37,397 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 20:52:37,399 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 20:52:38,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 20:52:38,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:52:38,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 20:52:38,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:52:38,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2023-08-25 20:52:39,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:39,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:52:39,766 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:52:39,766 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 40 treesize of output 32 [2023-08-25 20:52:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:52:40,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433687301] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:52:40,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:52:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 42 [2023-08-25 20:52:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181444878] [2023-08-25 20:52:40,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:52:40,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-08-25 20:52:40,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:52:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-08-25 20:52:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1711, Unknown=0, NotChecked=0, Total=1892 [2023-08-25 20:52:40,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:52:40,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 1065 transitions, 17750 flow. Second operand has 44 states, 44 states have (on average 192.77272727272728) internal successors, (8482), 44 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:52:40,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:52:40,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:52:40,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:12,362 INFO L124 PetriNetUnfolderBase]: 11779/22704 cut-off events. [2023-08-25 20:53:12,362 INFO L125 PetriNetUnfolderBase]: For 248211/248310 co-relation queries the response was YES. [2023-08-25 20:53:12,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130498 conditions, 22704 events. 11779/22704 cut-off events. For 248211/248310 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 198228 event pairs, 1411 based on Foata normal form. 34/22730 useless extension candidates. Maximal degree in co-relation 130426. Up to 6902 conditions per place. [2023-08-25 20:53:12,635 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 693 selfloop transitions, 1126 changer transitions 55/1882 dead transitions. [2023-08-25 20:53:12,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 1882 transitions, 32505 flow [2023-08-25 20:53:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-08-25 20:53:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2023-08-25 20:53:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 12278 transitions. [2023-08-25 20:53:12,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3178687930409569 [2023-08-25 20:53:12,650 INFO L72 ComplementDD]: Start complementDD. Operand 62 states and 12278 transitions. [2023-08-25 20:53:12,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 12278 transitions. [2023-08-25 20:53:12,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:12,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 62 states and 12278 transitions. [2023-08-25 20:53:12,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 63 states, 62 states have (on average 198.03225806451613) internal successors, (12278), 62 states have internal predecessors, (12278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:12,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 63 states, 63 states have (on average 623.0) internal successors, (39249), 63 states have internal predecessors, (39249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:12,696 INFO L81 ComplementDD]: Finished complementDD. Result has 63 states, 63 states have (on average 623.0) internal successors, (39249), 63 states have internal predecessors, (39249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:12,697 INFO L175 Difference]: Start difference. First operand has 260 places, 1065 transitions, 17750 flow. Second operand 62 states and 12278 transitions. [2023-08-25 20:53:12,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 1882 transitions, 32505 flow [2023-08-25 20:53:16,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1882 transitions, 31080 flow, removed 706 selfloop flow, removed 7 redundant places. [2023-08-25 20:53:16,432 INFO L231 Difference]: Finished difference. Result has 338 places, 1529 transitions, 29407 flow [2023-08-25 20:53:16,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=16775, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=717, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=29407, PETRI_PLACES=338, PETRI_TRANSITIONS=1529} [2023-08-25 20:53:16,433 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 248 predicate places. [2023-08-25 20:53:16,434 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 1529 transitions, 29407 flow [2023-08-25 20:53:16,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 192.77272727272728) internal successors, (8482), 44 states have internal predecessors, (8482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:16,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:16,435 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:53:16,445 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 20:53:16,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:53:16,643 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:53:16,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:16,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1956718163, now seen corresponding path program 4 times [2023-08-25 20:53:16,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:16,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681869056] [2023-08-25 20:53:16,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:16,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:53:17,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681869056] [2023-08-25 20:53:17,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681869056] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:53:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908032791] [2023-08-25 20:53:17,785 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 20:53:17,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:53:17,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:53:17,786 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 20:53:17,788 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 20:53:19,089 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 20:53:19,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:53:19,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-25 20:53:19,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:53:19,604 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:53:19,605 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 25 treesize of output 15 [2023-08-25 20:53:19,974 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:53:19,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:53:20,667 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:53:20,667 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 51 treesize of output 35 [2023-08-25 20:53:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:53:20,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908032791] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:53:20,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:53:20,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 36 [2023-08-25 20:53:20,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979111292] [2023-08-25 20:53:20,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:53:20,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-25 20:53:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:53:20,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-25 20:53:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2023-08-25 20:53:20,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:53:20,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 1529 transitions, 29407 flow. Second operand has 38 states, 38 states have (on average 193.0) internal successors, (7334), 38 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:20,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:53:20,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:53:20,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:53:49,311 INFO L124 PetriNetUnfolderBase]: 12128/23526 cut-off events. [2023-08-25 20:53:49,311 INFO L125 PetriNetUnfolderBase]: For 324355/324478 co-relation queries the response was YES. [2023-08-25 20:53:49,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148733 conditions, 23526 events. 12128/23526 cut-off events. For 324355/324478 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 208403 event pairs, 1268 based on Foata normal form. 64/23582 useless extension candidates. Maximal degree in co-relation 148632. Up to 11784 conditions per place. [2023-08-25 20:53:49,642 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 503 selfloop transitions, 1299 changer transitions 53/1863 dead transitions. [2023-08-25 20:53:49,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 1863 transitions, 36846 flow [2023-08-25 20:53:49,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-08-25 20:53:49,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2023-08-25 20:53:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 9651 transitions. [2023-08-25 20:53:49,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3161463622367085 [2023-08-25 20:53:49,652 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 9651 transitions. [2023-08-25 20:53:49,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 9651 transitions. [2023-08-25 20:53:49,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:53:49,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 9651 transitions. [2023-08-25 20:53:49,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 196.9591836734694) internal successors, (9651), 49 states have internal predecessors, (9651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:49,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 623.0) internal successors, (31150), 50 states have internal predecessors, (31150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:49,693 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 623.0) internal successors, (31150), 50 states have internal predecessors, (31150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:49,694 INFO L175 Difference]: Start difference. First operand has 338 places, 1529 transitions, 29407 flow. Second operand 49 states and 9651 transitions. [2023-08-25 20:53:49,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 1863 transitions, 36846 flow [2023-08-25 20:53:57,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 1863 transitions, 35679 flow, removed 551 selfloop flow, removed 15 redundant places. [2023-08-25 20:53:57,596 INFO L231 Difference]: Finished difference. Result has 376 places, 1665 transitions, 35191 flow [2023-08-25 20:53:57,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=28344, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=35191, PETRI_PLACES=376, PETRI_TRANSITIONS=1665} [2023-08-25 20:53:57,597 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 286 predicate places. [2023-08-25 20:53:57,597 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 1665 transitions, 35191 flow [2023-08-25 20:53:57,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 193.0) internal successors, (7334), 38 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:53:57,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:53:57,598 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:53:57,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-08-25 20:53:57,805 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,SelfDestructingSolverStorable24 [2023-08-25 20:53:57,805 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:53:57,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:53:57,805 INFO L85 PathProgramCache]: Analyzing trace with hash -726073079, now seen corresponding path program 5 times [2023-08-25 20:53:57,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:53:57,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288059763] [2023-08-25 20:53:57,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:53:57,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:53:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:53:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:53:58,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:53:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288059763] [2023-08-25 20:53:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288059763] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:53:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540951676] [2023-08-25 20:53:58,718 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 20:53:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:53:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:53:58,719 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 20:53:58,721 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 20:53:59,001 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 20:53:59,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:53:59,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 41 conjunts are in the unsatisfiable core [2023-08-25 20:53:59,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:53:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 20:53:59,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:54:00,440 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:54:00,441 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 47 treesize of output 39 [2023-08-25 20:54:00,657 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:54:00,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540951676] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:54:00,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:54:00,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 10] total 36 [2023-08-25 20:54:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954235326] [2023-08-25 20:54:00,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:54:00,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-25 20:54:00,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-25 20:54:00,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1281, Unknown=0, NotChecked=0, Total=1406 [2023-08-25 20:54:00,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:54:00,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 1665 transitions, 35191 flow. Second operand has 38 states, 38 states have (on average 193.02631578947367) internal successors, (7335), 38 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:00,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:00,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:54:00,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:13,054 INFO L124 PetriNetUnfolderBase]: 12448/24262 cut-off events. [2023-08-25 20:54:13,054 INFO L125 PetriNetUnfolderBase]: For 394833/394930 co-relation queries the response was YES. [2023-08-25 20:54:13,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163209 conditions, 24262 events. 12448/24262 cut-off events. For 394833/394930 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 216357 event pairs, 1842 based on Foata normal form. 30/24287 useless extension candidates. Maximal degree in co-relation 163101. Up to 11989 conditions per place. [2023-08-25 20:54:13,391 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 610 selfloop transitions, 1227 changer transitions 12/1857 dead transitions. [2023-08-25 20:54:13,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1857 transitions, 41361 flow [2023-08-25 20:54:13,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-08-25 20:54:13,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-08-25 20:54:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 6103 transitions. [2023-08-25 20:54:13,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31600476363071506 [2023-08-25 20:54:13,399 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 6103 transitions. [2023-08-25 20:54:13,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 6103 transitions. [2023-08-25 20:54:13,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:13,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 6103 transitions. [2023-08-25 20:54:13,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 196.8709677419355) internal successors, (6103), 31 states have internal predecessors, (6103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:13,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 623.0) internal successors, (19936), 32 states have internal predecessors, (19936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:13,424 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 623.0) internal successors, (19936), 32 states have internal predecessors, (19936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:13,424 INFO L175 Difference]: Start difference. First operand has 376 places, 1665 transitions, 35191 flow. Second operand 31 states and 6103 transitions. [2023-08-25 20:54:13,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1857 transitions, 41361 flow [2023-08-25 20:54:22,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1857 transitions, 40793 flow, removed 191 selfloop flow, removed 21 redundant places. [2023-08-25 20:54:22,209 INFO L231 Difference]: Finished difference. Result has 385 places, 1740 transitions, 39821 flow [2023-08-25 20:54:22,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=34667, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=39821, PETRI_PLACES=385, PETRI_TRANSITIONS=1740} [2023-08-25 20:54:22,210 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 295 predicate places. [2023-08-25 20:54:22,210 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 1740 transitions, 39821 flow [2023-08-25 20:54:22,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 193.02631578947367) internal successors, (7335), 38 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:22,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:22,211 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:54:22,217 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 20:54:22,412 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,SelfDestructingSolverStorable25 [2023-08-25 20:54:22,412 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:54:22,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:22,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1488761857, now seen corresponding path program 6 times [2023-08-25 20:54:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:22,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663993356] [2023-08-25 20:54:22,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:22,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:54:23,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:23,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663993356] [2023-08-25 20:54:23,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663993356] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:54:23,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825325038] [2023-08-25 20:54:23,589 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 20:54:23,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:54:23,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:54:23,590 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:54:23,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-08-25 20:54:24,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-08-25 20:54:24,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:54:24,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 20:54:24,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:54:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:54:25,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:54:26,026 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:54:26,027 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 47 treesize of output 39 [2023-08-25 20:54:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 20:54:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825325038] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:54:26,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:54:26,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 10] total 36 [2023-08-25 20:54:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433772561] [2023-08-25 20:54:26,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:54:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-08-25 20:54:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-08-25 20:54:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1288, Unknown=0, NotChecked=0, Total=1406 [2023-08-25 20:54:26,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:54:26,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 1740 transitions, 39821 flow. Second operand has 38 states, 38 states have (on average 193.0) internal successors, (7334), 38 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:26,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:26,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:54:26,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:54:39,172 INFO L124 PetriNetUnfolderBase]: 12530/24370 cut-off events. [2023-08-25 20:54:39,172 INFO L125 PetriNetUnfolderBase]: For 461586/461678 co-relation queries the response was YES. [2023-08-25 20:54:39,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172666 conditions, 24370 events. 12530/24370 cut-off events. For 461586/461678 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 217263 event pairs, 1826 based on Foata normal form. 17/24381 useless extension candidates. Maximal degree in co-relation 172556. Up to 14139 conditions per place. [2023-08-25 20:54:39,761 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 651 selfloop transitions, 1193 changer transitions 10/1862 dead transitions. [2023-08-25 20:54:39,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1862 transitions, 44499 flow [2023-08-25 20:54:39,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-25 20:54:39,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-25 20:54:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 5512 transitions. [2023-08-25 20:54:39,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3159825728044027 [2023-08-25 20:54:39,767 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 5512 transitions. [2023-08-25 20:54:39,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 5512 transitions. [2023-08-25 20:54:39,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:54:39,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 5512 transitions. [2023-08-25 20:54:39,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 196.85714285714286) internal successors, (5512), 28 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:39,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 623.0) internal successors, (18067), 29 states have internal predecessors, (18067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:39,789 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 623.0) internal successors, (18067), 29 states have internal predecessors, (18067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:39,789 INFO L175 Difference]: Start difference. First operand has 385 places, 1740 transitions, 39821 flow. Second operand 28 states and 5512 transitions. [2023-08-25 20:54:39,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1862 transitions, 44499 flow [2023-08-25 20:54:49,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1862 transitions, 44306 flow, removed 49 selfloop flow, removed 17 redundant places. [2023-08-25 20:54:49,623 INFO L231 Difference]: Finished difference. Result has 397 places, 1756 transitions, 43978 flow [2023-08-25 20:54:49,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=39628, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=43978, PETRI_PLACES=397, PETRI_TRANSITIONS=1756} [2023-08-25 20:54:49,625 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 307 predicate places. [2023-08-25 20:54:49,625 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 1756 transitions, 43978 flow [2023-08-25 20:54:49,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 193.0) internal successors, (7334), 38 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:49,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:54:49,626 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:54:49,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-08-25 20:54:49,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-08-25 20:54:49,836 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:54:49,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:54:49,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1417384799, now seen corresponding path program 7 times [2023-08-25 20:54:49,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:54:49,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927498991] [2023-08-25 20:54:49,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:54:49,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:54:49,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:54:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:54:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927498991] [2023-08-25 20:54:50,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927498991] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:54:50,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261647467] [2023-08-25 20:54:50,807 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 20:54:50,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:54:50,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:54:50,808 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:54:50,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-08-25 20:54:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:54:51,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-25 20:54:51,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:54:51,644 INFO L322 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2023-08-25 20:54:51,645 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 24 treesize of output 10 [2023-08-25 20:54:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:54:51,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:54:52,614 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:54:52,615 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 54 treesize of output 46 [2023-08-25 20:54:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:54:52,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261647467] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:54:52,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:54:52,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13] total 41 [2023-08-25 20:54:52,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858916406] [2023-08-25 20:54:52,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:54:52,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-08-25 20:54:52,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:54:52,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-08-25 20:54:53,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1620, Unknown=0, NotChecked=0, Total=1806 [2023-08-25 20:54:53,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 623 [2023-08-25 20:54:53,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 1756 transitions, 43978 flow. Second operand has 43 states, 43 states have (on average 192.8139534883721) internal successors, (8291), 43 states have internal predecessors, (8291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:54:53,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:54:53,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 623 [2023-08-25 20:54:53,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:08,742 INFO L124 PetriNetUnfolderBase]: 13124/25343 cut-off events. [2023-08-25 20:55:08,742 INFO L125 PetriNetUnfolderBase]: For 578598/578734 co-relation queries the response was YES. [2023-08-25 20:55:09,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191910 conditions, 25343 events. 13124/25343 cut-off events. For 578598/578734 co-relation queries the response was YES. Maximal size of possible extension queue 981. Compared 225968 event pairs, 1666 based on Foata normal form. 25/25362 useless extension candidates. Maximal degree in co-relation 191798. Up to 12945 conditions per place. [2023-08-25 20:55:09,423 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 588 selfloop transitions, 1416 changer transitions 17/2029 dead transitions. [2023-08-25 20:55:09,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 2029 transitions, 51741 flow [2023-08-25 20:55:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-08-25 20:55:09,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2023-08-25 20:55:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 7499 transitions. [2023-08-25 20:55:09,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3167610036326772 [2023-08-25 20:55:09,428 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 7499 transitions. [2023-08-25 20:55:09,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 7499 transitions. [2023-08-25 20:55:09,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:55:09,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 7499 transitions. [2023-08-25 20:55:09,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 197.3421052631579) internal successors, (7499), 38 states have internal predecessors, (7499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:55:09,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 623.0) internal successors, (24297), 39 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:55:09,453 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 623.0) internal successors, (24297), 39 states have internal predecessors, (24297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:55:09,453 INFO L175 Difference]: Start difference. First operand has 397 places, 1756 transitions, 43978 flow. Second operand 38 states and 7499 transitions. [2023-08-25 20:55:09,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 2029 transitions, 51741 flow [2023-08-25 20:55:20,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 2029 transitions, 51585 flow, removed 11 selfloop flow, removed 23 redundant places. [2023-08-25 20:55:20,531 INFO L231 Difference]: Finished difference. Result has 420 places, 1877 transitions, 50417 flow [2023-08-25 20:55:20,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=43824, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1308, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=50417, PETRI_PLACES=420, PETRI_TRANSITIONS=1877} [2023-08-25 20:55:20,533 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 330 predicate places. [2023-08-25 20:55:20,533 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 1877 transitions, 50417 flow [2023-08-25 20:55:20,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 192.8139534883721) internal successors, (8291), 43 states have internal predecessors, (8291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:55:20,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 20:55:20,535 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 20:55:20,545 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-08-25 20:55:20,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-08-25 20:55:20,741 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 20:55:20,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 20:55:20,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1807516853, now seen corresponding path program 8 times [2023-08-25 20:55:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 20:55:20,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402956350] [2023-08-25 20:55:20,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 20:55:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 20:55:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 20:55:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:55:22,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 20:55:22,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402956350] [2023-08-25 20:55:22,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402956350] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 20:55:22,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795825104] [2023-08-25 20:55:22,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 20:55:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 20:55:22,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 20:55:22,200 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 20:55:22,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-08-25 20:55:22,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 20:55:22,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 20:55:22,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-25 20:55:22,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 20:55:23,221 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-08-25 20:55:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:55:23,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 20:55:24,460 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 20:55:24,460 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 54 treesize of output 46 [2023-08-25 20:55:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 20:55:24,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795825104] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 20:55:24,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 20:55:24,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 13] total 42 [2023-08-25 20:55:24,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545841437] [2023-08-25 20:55:24,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 20:55:24,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-08-25 20:55:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 20:55:24,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-08-25 20:55:24,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1694, Unknown=0, NotChecked=0, Total=1892 [2023-08-25 20:55:24,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 623 [2023-08-25 20:55:24,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 1877 transitions, 50417 flow. Second operand has 44 states, 44 states have (on average 174.3181818181818) internal successors, (7670), 44 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:55:24,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 20:55:24,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 623 [2023-08-25 20:55:24,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 20:55:34,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-25 20:55:44,723 WARN L539 Checker$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 20:56:05,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-25 20:56:22,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-08-25 20:57:03,757 INFO L124 PetriNetUnfolderBase]: 72522/118749 cut-off events. [2023-08-25 20:57:03,757 INFO L125 PetriNetUnfolderBase]: For 3117487/3117487 co-relation queries the response was YES. [2023-08-25 20:57:06,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 936940 conditions, 118749 events. 72522/118749 cut-off events. For 3117487/3117487 co-relation queries the response was YES. Maximal size of possible extension queue 2897. Compared 1038507 event pairs, 5908 based on Foata normal form. 246/118995 useless extension candidates. Maximal degree in co-relation 936820. Up to 46891 conditions per place. [2023-08-25 20:57:07,675 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 1718 selfloop transitions, 2485 changer transitions 285/4488 dead transitions. [2023-08-25 20:57:07,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 4488 transitions, 102176 flow [2023-08-25 20:57:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-08-25 20:57:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2023-08-25 20:57:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 22821 transitions. [2023-08-25 20:57:07,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29540982757727957 [2023-08-25 20:57:07,695 INFO L72 ComplementDD]: Start complementDD. Operand 124 states and 22821 transitions. [2023-08-25 20:57:07,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124 states and 22821 transitions. [2023-08-25 20:57:07,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 20:57:07,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 124 states and 22821 transitions. [2023-08-25 20:57:07,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 125 states, 124 states have (on average 184.04032258064515) internal successors, (22821), 124 states have internal predecessors, (22821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:57:07,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 125 states, 125 states have (on average 623.0) internal successors, (77875), 125 states have internal predecessors, (77875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:57:07,793 INFO L81 ComplementDD]: Finished complementDD. Result has 125 states, 125 states have (on average 623.0) internal successors, (77875), 125 states have internal predecessors, (77875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 20:57:07,793 INFO L175 Difference]: Start difference. First operand has 420 places, 1877 transitions, 50417 flow. Second operand 124 states and 22821 transitions. [2023-08-25 20:57:07,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 4488 transitions, 102176 flow [2023-08-25 21:00:19,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 4488 transitions, 101585 flow, removed 238 selfloop flow, removed 21 redundant places. [2023-08-25 21:00:19,638 INFO L231 Difference]: Finished difference. Result has 572 places, 3179 transitions, 94606 flow [2023-08-25 21:00:19,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=623, PETRI_DIFFERENCE_MINUEND_FLOW=49936, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1361, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=124, PETRI_FLOW=94606, PETRI_PLACES=572, PETRI_TRANSITIONS=3179} [2023-08-25 21:00:19,640 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 482 predicate places. [2023-08-25 21:00:19,640 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 3179 transitions, 94606 flow [2023-08-25 21:00:19,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 174.3181818181818) internal successors, (7670), 44 states have internal predecessors, (7670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:00:19,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:00:19,642 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:00:19,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-08-25 21:00:19,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-08-25 21:00:19,845 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err12ASSERT_VIOLATIONDATA_RACE, thread1Err13ASSERT_VIOLATIONDATA_RACE, thread1Err14ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-08-25 21:00:19,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:00:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash -655939605, now seen corresponding path program 9 times [2023-08-25 21:00:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:00:19,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840457705] [2023-08-25 21:00:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:00:19,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:00:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:00:21,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:00:21,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:00:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840457705] [2023-08-25 21:00:21,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840457705] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:00:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214330269] [2023-08-25 21:00:21,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 21:00:21,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:00:21,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:00:21,210 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 21:00:21,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-08-25 21:00:22,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 21:00:22,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 21:00:22,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 43 conjunts are in the unsatisfiable core [2023-08-25 21:00:22,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:00:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:00:22,615 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:00:23,380 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 21:00:23,385 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 50 treesize of output 42 [2023-08-25 21:00:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 21:00:23,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214330269] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:00:23,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:00:23,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 10] total 37 [2023-08-25 21:00:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594175307] [2023-08-25 21:00:23,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:00:23,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-08-25 21:00:23,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:00:23,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-08-25 21:00:23,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1358, Unknown=0, NotChecked=0, Total=1482 [2023-08-25 21:00:23,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 623 [2023-08-25 21:00:23,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 3179 transitions, 94606 flow. Second operand has 39 states, 39 states have (on average 174.5897435897436) internal successors, (6809), 39 states have internal predecessors, (6809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:00:23,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:00:23,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 623 [2023-08-25 21:00:23,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:02:16,444 INFO L124 PetriNetUnfolderBase]: 72669/118225 cut-off events. [2023-08-25 21:02:16,444 INFO L125 PetriNetUnfolderBase]: For 3713901/3713901 co-relation queries the response was YES. [2023-08-25 21:02:21,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011730 conditions, 118225 events. 72669/118225 cut-off events. For 3713901/3713901 co-relation queries the response was YES. Maximal size of possible extension queue 2804. Compared 1023222 event pairs, 7726 based on Foata normal form. 2/118227 useless extension candidates. Maximal degree in co-relation 1011563. Up to 65558 conditions per place. [2023-08-25 21:02:21,899 INFO L140 encePairwiseOnDemand]: 609/623 looper letters, 1402 selfloop transitions, 2281 changer transitions 25/3708 dead transitions. [2023-08-25 21:02:21,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 608 places, 3708 transitions, 111226 flow [2023-08-25 21:02:21,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-08-25 21:02:21,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2023-08-25 21:02:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 7800 transitions. [2023-08-25 21:02:21,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.291164283847848 [2023-08-25 21:02:21,905 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 7800 transitions. [2023-08-25 21:02:21,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 7800 transitions. [2023-08-25 21:02:21,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:02:21,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 7800 transitions. [2023-08-25 21:02:21,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 181.3953488372093) internal successors, (7800), 43 states have internal predecessors, (7800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:02:21,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 623.0) internal successors, (27412), 44 states have internal predecessors, (27412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:02:21,921 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 623.0) internal successors, (27412), 44 states have internal predecessors, (27412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:02:21,921 INFO L175 Difference]: Start difference. First operand has 572 places, 3179 transitions, 94606 flow. Second operand 43 states and 7800 transitions. [2023-08-25 21:02:21,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 608 places, 3708 transitions, 111226 flow Received shutdown request... [2023-08-25 21:03:31,966 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 21:03:31,967 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 21:03:32,000 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16ASSERT_VIOLATIONASSERT (96 of 97 remaining) [2023-08-25 21:03:32,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-08-25 21:03:32,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:03:32,201 WARN L619 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2023-08-25 21:03:32,202 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONDATA_RACE (94 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONDATA_RACE (93 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONDATA_RACE (92 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONDATA_RACE (91 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONDATA_RACE (90 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONDATA_RACE (89 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err18ASSERT_VIOLATIONDATA_RACE (88 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err19ASSERT_VIOLATIONDATA_RACE (87 of 97 remaining) [2023-08-25 21:03:32,203 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (86 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (85 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (84 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (83 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (82 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (81 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (80 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (79 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err20ASSERT_VIOLATIONDATA_RACE (78 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (77 of 97 remaining) [2023-08-25 21:03:32,204 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err21ASSERT_VIOLATIONDATA_RACE (76 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (75 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err22ASSERT_VIOLATIONDATA_RACE (74 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONDATA_RACE (73 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (72 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (71 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (70 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (68 of 97 remaining) [2023-08-25 21:03:32,205 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (67 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (66 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (65 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (64 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (63 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (62 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONDATA_RACE (61 of 97 remaining) [2023-08-25 21:03:32,206 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONDATA_RACE (60 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONDATA_RACE (59 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONDATA_RACE (58 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONDATA_RACE (57 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 97 remaining) [2023-08-25 21:03:32,207 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (49 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (47 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (45 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (44 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (43 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (42 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (41 of 97 remaining) [2023-08-25 21:03:32,208 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (38 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err12ASSERT_VIOLATIONDATA_RACE (37 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err13ASSERT_VIOLATIONDATA_RACE (36 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err14ASSERT_VIOLATIONDATA_RACE (35 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err15ASSERT_VIOLATIONDATA_RACE (34 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err16ASSERT_VIOLATIONDATA_RACE (33 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err17ASSERT_VIOLATIONDATA_RACE (32 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err18ASSERT_VIOLATIONDATA_RACE (31 of 97 remaining) [2023-08-25 21:03:32,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err19ASSERT_VIOLATIONDATA_RACE (30 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (29 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (28 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (27 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err20ASSERT_VIOLATIONDATA_RACE (21 of 97 remaining) [2023-08-25 21:03:32,210 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 97 remaining) [2023-08-25 21:03:32,211 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err21ASSERT_VIOLATIONDATA_RACE (19 of 97 remaining) [2023-08-25 21:03:32,211 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 97 remaining) [2023-08-25 21:03:32,213 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err22ASSERT_VIOLATIONDATA_RACE (17 of 97 remaining) [2023-08-25 21:03:32,213 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err11ASSERT_VIOLATIONDATA_RACE (16 of 97 remaining) [2023-08-25 21:03:32,213 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 97 remaining) [2023-08-25 21:03:32,214 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 97 remaining) [2023-08-25 21:03:32,214 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (13 of 97 remaining) [2023-08-25 21:03:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 97 remaining) [2023-08-25 21:03:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (11 of 97 remaining) [2023-08-25 21:03:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (10 of 97 remaining) [2023-08-25 21:03:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (9 of 97 remaining) [2023-08-25 21:03:32,216 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (8 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (7 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err11ASSERT_VIOLATIONDATA_RACE (4 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err12ASSERT_VIOLATIONDATA_RACE (3 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err13ASSERT_VIOLATIONDATA_RACE (2 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err14ASSERT_VIOLATIONDATA_RACE (1 of 97 remaining) [2023-08-25 21:03:32,217 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err15ASSERT_VIOLATIONDATA_RACE (0 of 97 remaining) [2023-08-25 21:03:32,218 INFO L445 BasicCegarLoop]: Path program histogram: [11, 9, 4, 1, 1, 1, 1, 1, 1] [2023-08-25 21:03:32,223 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 21:03:32,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 21:03:32,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:03:32 BasicIcfg [2023-08-25 21:03:32,225 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 21:03:32,225 INFO L158 Benchmark]: Toolchain (without parser) took 777357.62ms. Allocated memory was 360.7MB in the beginning and 11.2GB in the end (delta: 10.8GB). Free memory was 337.3MB in the beginning and 6.9GB in the end (delta: -6.6GB). Peak memory consumption was 11.0GB. Max. memory is 16.0GB. [2023-08-25 21:03:32,226 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 360.7MB. Free memory was 338.7MB in the beginning and 338.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 21:03:32,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.44ms. Allocated memory is still 360.7MB. Free memory was 337.3MB in the beginning and 324.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 21:03:32,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.60ms. Allocated memory is still 360.7MB. Free memory was 324.2MB in the beginning and 321.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:03:32,226 INFO L158 Benchmark]: Boogie Preprocessor took 58.33ms. Allocated memory is still 360.7MB. Free memory was 321.5MB in the beginning and 319.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 21:03:32,227 INFO L158 Benchmark]: RCFGBuilder took 1125.52ms. Allocated memory was 360.7MB in the beginning and 434.1MB in the end (delta: 73.4MB). Free memory was 319.4MB in the beginning and 396.2MB in the end (delta: -76.9MB). Peak memory consumption was 71.3MB. Max. memory is 16.0GB. [2023-08-25 21:03:32,227 INFO L158 Benchmark]: TraceAbstraction took 775827.07ms. Allocated memory was 434.1MB in the beginning and 11.2GB in the end (delta: 10.7GB). Free memory was 395.2MB in the beginning and 6.9GB in the end (delta: -6.5GB). Peak memory consumption was 10.9GB. Max. memory is 16.0GB. [2023-08-25 21:03:32,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 360.7MB. Free memory was 338.7MB in the beginning and 338.5MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 271.44ms. Allocated memory is still 360.7MB. Free memory was 337.3MB in the beginning and 324.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 69.60ms. Allocated memory is still 360.7MB. Free memory was 324.2MB in the beginning and 321.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 58.33ms. Allocated memory is still 360.7MB. Free memory was 321.5MB in the beginning and 319.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1125.52ms. Allocated memory was 360.7MB in the beginning and 434.1MB in the end (delta: 73.4MB). Free memory was 319.4MB in the beginning and 396.2MB in the end (delta: -76.9MB). Peak memory consumption was 71.3MB. Max. memory is 16.0GB. * TraceAbstraction took 775827.07ms. Allocated memory was 434.1MB in the beginning and 11.2GB in the end (delta: 10.7GB). Free memory was 395.2MB in the beginning and 6.9GB in the end (delta: -6.5GB). Peak memory consumption was 10.9GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 276 PlacesBefore, 90 PlacesAfterwards, 281 TransitionsBefore, 87 TransitionsAfterwards, 8366 CoEnabledTransitionPairs, 9 FixpointIterations, 171 TrivialSequentialCompositions, 126 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 5 ConcurrentYvCompositions, 8 ChoiceCompositions, 331 TotalNumberOfCompositions, 26432 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11263, independent: 10811, independent conditional: 0, independent unconditional: 10811, dependent: 452, dependent conditional: 0, dependent unconditional: 452, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4198, independent: 4102, independent conditional: 0, independent unconditional: 4102, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11263, independent: 6709, independent conditional: 0, independent unconditional: 6709, dependent: 356, dependent conditional: 0, dependent unconditional: 356, unknown: 4198, unknown conditional: 0, unknown unconditional: 4198] , Statistics on independence cache: Total cache size (in pairs): 381, Positive cache size: 343, Positive conditional cache size: 0, Positive unconditional cache size: 343, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 58]: 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: 59]: 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: 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: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 76]: 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: 77]: 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: 89]: 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: 91]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 101]: 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: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 104]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 99]: 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: 100]: 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, 381 locations, 97 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: 775.7s, OverallIterations: 30, TraceHistogramMax: 2, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 718.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.5s, HoareTripleCheckerStatistics: 42 mSolverCounterUnknown, 4996 SdHoareTripleChecker+Valid, 73.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4996 mSDsluCounter, 8178 SdHoareTripleChecker+Invalid, 69.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 104 IncrementalHoareTripleChecker+Unchecked, 7819 mSDsCounter, 1546 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34628 IncrementalHoareTripleChecker+Invalid, 36320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1546 mSolverCounterUnsat, 359 mSDtfsCounter, 34628 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1513 GetRequests, 571 SyntacticMatches, 9 SemanticMatches, 933 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17296 ImplicationChecksByTransitivity, 108.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94606occurred in iteration=29, InterpolantAutomatonStates: 636, 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: 0.4s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 36.2s InterpolantComputationTime, 1244 NumberOfCodeBlocks, 1244 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 1617 ConstructedInterpolants, 84 QuantifiedInterpolants, 35345 SizeOfPredicates, 193 NumberOfNonLiveVariables, 5135 ConjunctsInSsa, 507 ConjunctsInUnsatCore, 56 InterpolantComputations, 17 PerfectInterpolantSequences, 43/247 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