/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:35:06,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:35:06,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 05:35:06,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:35:06,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:35:06,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:35:06,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:35:06,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:35:06,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:35:06,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:35:06,227 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:35:06,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:35:06,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:35:06,228 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:35:06,228 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:35:06,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:35:06,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:35:06,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:35:06,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:35:06,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:35:06,230 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:35:06,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:35:06,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:35:06,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:35:06,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:35:06,232 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:35:06,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:35:06,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:35:06,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:35:06,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:35:06,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:35:06,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:35:06,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:35:06,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:35:06,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:35:06,235 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:35:06,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:35:06,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:35:06,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:35:06,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:35:06,602 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:35:06,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2023-08-25 05:35:07,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:35:08,044 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:35:08,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2023-08-25 05:35:08,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a71243d/81f4004c892d4af99aa1d4d924bc825f/FLAG19652c1e9 [2023-08-25 05:35:08,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1a71243d/81f4004c892d4af99aa1d4d924bc825f [2023-08-25 05:35:08,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:35:08,064 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:35:08,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:35:08,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:35:08,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:35:08,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@648f5244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08, skipping insertion in model container [2023-08-25 05:35:08,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,089 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:35:08,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:35:08,249 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:35:08,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:35:08,299 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:35:08,299 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 05:35:08,304 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:35:08,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08 WrapperNode [2023-08-25 05:35:08,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:35:08,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:35:08,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:35:08,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:35:08,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,322 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,363 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 555 [2023-08-25 05:35:08,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:35:08,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:35:08,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:35:08,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:35:08,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:35:08,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:35:08,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:35:08,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:35:08,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (1/1) ... [2023-08-25 05:35:08,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:35:08,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:08,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 05:35:08,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 05:35:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:35:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:35:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:35:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:35:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:35:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-25 05:35:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-25 05:35:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:35:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 05:35:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 05:35:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 05:35:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:35:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:35:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:35:08,493 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:35:08,601 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:35:08,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:35:09,301 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:35:09,622 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:35:09,622 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-08-25 05:35:09,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:35:09 BoogieIcfgContainer [2023-08-25 05:35:09,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:35:09,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:35:09,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:35:09,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:35:09,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:35:08" (1/3) ... [2023-08-25 05:35:09,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71154625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:35:09, skipping insertion in model container [2023-08-25 05:35:09,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:35:08" (2/3) ... [2023-08-25 05:35:09,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71154625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:35:09, skipping insertion in model container [2023-08-25 05:35:09,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:35:09" (3/3) ... [2023-08-25 05:35:09,635 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-08-25 05:35:09,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:35:09,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2023-08-25 05:35:09,651 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:35:09,736 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-25 05:35:09,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 404 transitions, 840 flow [2023-08-25 05:35:09,923 INFO L124 PetriNetUnfolderBase]: 20/400 cut-off events. [2023-08-25 05:35:09,923 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:35:09,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 400 events. 20/400 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 490 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 297. Up to 2 conditions per place. [2023-08-25 05:35:09,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 397 places, 404 transitions, 840 flow [2023-08-25 05:35:09,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 380 places, 387 transitions, 798 flow [2023-08-25 05:35:09,945 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:35:09,953 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 380 places, 387 transitions, 798 flow [2023-08-25 05:35:09,955 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 380 places, 387 transitions, 798 flow [2023-08-25 05:35:09,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 380 places, 387 transitions, 798 flow [2023-08-25 05:35:10,025 INFO L124 PetriNetUnfolderBase]: 20/387 cut-off events. [2023-08-25 05:35:10,026 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:35:10,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 387 events. 20/387 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 486 event pairs, 0 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 297. Up to 2 conditions per place. [2023-08-25 05:35:10,036 INFO L119 LiptonReduction]: Number of co-enabled transitions 10584 [2023-08-25 05:35:21,141 INFO L134 LiptonReduction]: Checked pairs total: 44793 [2023-08-25 05:35:21,141 INFO L136 LiptonReduction]: Total number of compositions: 475 [2023-08-25 05:35:21,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:35:21,159 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;@590557d4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:35:21,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 123 error locations. [2023-08-25 05:35:21,160 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:35:21,160 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:35:21,160 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:35:21,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:21,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:35:21,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:21,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:21,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2092, now seen corresponding path program 1 times [2023-08-25 05:35:21,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:21,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009841564] [2023-08-25 05:35:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:21,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009841564] [2023-08-25 05:35:21,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009841564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:21,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:21,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:35:21,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926826813] [2023-08-25 05:35:21,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:21,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:35:21,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:35:21,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:35:21,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 879 [2023-08-25 05:35:21,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 266 flow. Second operand has 2 states, 2 states have (on average 333.5) internal successors, (667), 2 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:21,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:21,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 879 [2023-08-25 05:35:21,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:21,605 INFO L124 PetriNetUnfolderBase]: 977/1629 cut-off events. [2023-08-25 05:35:21,606 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-08-25 05:35:21,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3054 conditions, 1629 events. 977/1629 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6633 event pairs, 624 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 2235. Up to 1300 conditions per place. [2023-08-25 05:35:21,617 INFO L140 encePairwiseOnDemand]: 809/879 looper letters, 31 selfloop transitions, 0 changer transitions 0/51 dead transitions. [2023-08-25 05:35:21,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 188 flow [2023-08-25 05:35:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:35:21,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:35:21,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 767 transitions. [2023-08-25 05:35:21,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43629124004550623 [2023-08-25 05:35:21,636 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 767 transitions. [2023-08-25 05:35:21,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 767 transitions. [2023-08-25 05:35:21,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:21,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 767 transitions. [2023-08-25 05:35:21,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 383.5) internal successors, (767), 2 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 05:35:21,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 879.0) internal successors, (2637), 3 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:21,655 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 879.0) internal successors, (2637), 3 states have internal predecessors, (2637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:21,656 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 266 flow. Second operand 2 states and 767 transitions. [2023-08-25 05:35:21,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 188 flow [2023-08-25 05:35:21,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 172 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 05:35:21,663 INFO L231 Difference]: Finished difference. Result has 52 places, 51 transitions, 110 flow [2023-08-25 05:35:21,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=110, PETRI_PLACES=52, PETRI_TRANSITIONS=51} [2023-08-25 05:35:21,668 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -77 predicate places. [2023-08-25 05:35:21,668 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 51 transitions, 110 flow [2023-08-25 05:35:21,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 333.5) internal successors, (667), 2 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:21,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:21,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:21,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:35:21,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:21,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash -499347481, now seen corresponding path program 1 times [2023-08-25 05:35:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:21,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661851284] [2023-08-25 05:35:21,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:22,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:22,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661851284] [2023-08-25 05:35:22,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661851284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:22,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:22,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339214739] [2023-08-25 05:35:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:22,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:22,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:22,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:22,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:22,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 879 [2023-08-25 05:35:22,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 51 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:22,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:22,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 879 [2023-08-25 05:35:22,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:23,131 INFO L124 PetriNetUnfolderBase]: 2783/3624 cut-off events. [2023-08-25 05:35:23,132 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:35:23,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7291 conditions, 3624 events. 2783/3624 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10960 event pairs, 272 based on Foata normal form. 0/2630 useless extension candidates. Maximal degree in co-relation 7288. Up to 1799 conditions per place. [2023-08-25 05:35:23,148 INFO L140 encePairwiseOnDemand]: 874/879 looper letters, 94 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2023-08-25 05:35:23,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 98 transitions, 400 flow [2023-08-25 05:35:23,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:23,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:23,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2023-08-25 05:35:23,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35665529010238906 [2023-08-25 05:35:23,154 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1881 transitions. [2023-08-25 05:35:23,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1881 transitions. [2023-08-25 05:35:23,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:23,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1881 transitions. [2023-08-25 05:35:23,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.5) internal successors, (1881), 6 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,171 INFO L175 Difference]: Start difference. First operand has 52 places, 51 transitions, 110 flow. Second operand 6 states and 1881 transitions. [2023-08-25 05:35:23,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 98 transitions, 400 flow [2023-08-25 05:35:23,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 98 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:35:23,175 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 116 flow [2023-08-25 05:35:23,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2023-08-25 05:35:23,176 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2023-08-25 05:35:23,179 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 116 flow [2023-08-25 05:35:23,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:23,184 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 05:35:23,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:35:23,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:23,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash 249546465, now seen corresponding path program 1 times [2023-08-25 05:35:23,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:23,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209686040] [2023-08-25 05:35:23,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:23,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:23,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:23,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209686040] [2023-08-25 05:35:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209686040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:23,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710246083] [2023-08-25 05:35:23,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:23,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:23,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:23,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:23,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 879 [2023-08-25 05:35:23,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 116 flow. Second operand has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:23,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:23,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 879 [2023-08-25 05:35:23,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:24,134 INFO L124 PetriNetUnfolderBase]: 2702/3516 cut-off events. [2023-08-25 05:35:24,135 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2023-08-25 05:35:24,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7400 conditions, 3516 events. 2702/3516 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10517 event pairs, 1406 based on Foata normal form. 0/2576 useless extension candidates. Maximal degree in co-relation 7396. Up to 2744 conditions per place. [2023-08-25 05:35:24,152 INFO L140 encePairwiseOnDemand]: 874/879 looper letters, 81 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-25 05:35:24,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 356 flow [2023-08-25 05:35:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:24,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1868 transitions. [2023-08-25 05:35:24,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.354190367842245 [2023-08-25 05:35:24,158 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1868 transitions. [2023-08-25 05:35:24,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1868 transitions. [2023-08-25 05:35:24,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:24,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1868 transitions. [2023-08-25 05:35:24,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.3333333333333) internal successors, (1868), 6 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:24,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:24,173 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:24,174 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 116 flow. Second operand 6 states and 1868 transitions. [2023-08-25 05:35:24,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 356 flow [2023-08-25 05:35:24,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 85 transitions, 349 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:24,181 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 115 flow [2023-08-25 05:35:24,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2023-08-25 05:35:24,183 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2023-08-25 05:35:24,183 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 115 flow [2023-08-25 05:35:24,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 300.5) internal successors, (1803), 6 states have internal predecessors, (1803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:24,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:24,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:24,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:35:24,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:24,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:24,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1026004756, now seen corresponding path program 1 times [2023-08-25 05:35:24,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:24,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122062983] [2023-08-25 05:35:24,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:24,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:24,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:24,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122062983] [2023-08-25 05:35:24,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122062983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:24,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:24,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:24,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792019327] [2023-08-25 05:35:24,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:24,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:24,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:24,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 879 [2023-08-25 05:35:24,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:24,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:24,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 879 [2023-08-25 05:35:24,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:25,088 INFO L124 PetriNetUnfolderBase]: 2684/3489 cut-off events. [2023-08-25 05:35:25,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:35:25,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7211 conditions, 3489 events. 2684/3489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10421 event pairs, 1688 based on Foata normal form. 0/2564 useless extension candidates. Maximal degree in co-relation 7207. Up to 3311 conditions per place. [2023-08-25 05:35:25,106 INFO L140 encePairwiseOnDemand]: 874/879 looper letters, 68 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-25 05:35:25,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 305 flow [2023-08-25 05:35:25,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:25,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1855 transitions. [2023-08-25 05:35:25,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3517254455821009 [2023-08-25 05:35:25,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1855 transitions. [2023-08-25 05:35:25,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1855 transitions. [2023-08-25 05:35:25,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:25,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1855 transitions. [2023-08-25 05:35:25,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 309.1666666666667) internal successors, (1855), 6 states have internal predecessors, (1855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,128 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,128 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 115 flow. Second operand 6 states and 1855 transitions. [2023-08-25 05:35:25,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 305 flow [2023-08-25 05:35:25,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 298 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:25,131 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 114 flow [2023-08-25 05:35:25,131 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=114, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2023-08-25 05:35:25,133 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2023-08-25 05:35:25,133 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 114 flow [2023-08-25 05:35:25,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.6666666666667) internal successors, (1810), 6 states have internal predecessors, (1810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:25,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:25,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:35:25,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:25,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:25,134 INFO L85 PathProgramCache]: Analyzing trace with hash -70593620, now seen corresponding path program 1 times [2023-08-25 05:35:25,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:25,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240468592] [2023-08-25 05:35:25,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:25,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:25,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:25,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240468592] [2023-08-25 05:35:25,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240468592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:25,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:25,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:35:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283394539] [2023-08-25 05:35:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:25,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 05:35:25,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:25,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 05:35:25,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 05:35:25,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 879 [2023-08-25 05:35:25,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:25,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 879 [2023-08-25 05:35:25,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:25,961 INFO L124 PetriNetUnfolderBase]: 2681/3483 cut-off events. [2023-08-25 05:35:25,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:35:25,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7154 conditions, 3483 events. 2681/3483 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10410 event pairs, 1750 based on Foata normal form. 0/2562 useless extension candidates. Maximal degree in co-relation 7150. Up to 3452 conditions per place. [2023-08-25 05:35:25,979 INFO L140 encePairwiseOnDemand]: 874/879 looper letters, 55 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2023-08-25 05:35:25,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 254 flow [2023-08-25 05:35:25,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:25,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1842 transitions. [2023-08-25 05:35:25,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3492605233219568 [2023-08-25 05:35:25,985 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1842 transitions. [2023-08-25 05:35:25,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1842 transitions. [2023-08-25 05:35:25,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:25,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1842 transitions. [2023-08-25 05:35:25,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,996 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 114 flow. Second operand 6 states and 1842 transitions. [2023-08-25 05:35:25,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 254 flow [2023-08-25 05:35:25,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 59 transitions, 247 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:25,997 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 113 flow [2023-08-25 05:35:25,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=113, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-08-25 05:35:25,998 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2023-08-25 05:35:25,998 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 113 flow [2023-08-25 05:35:25,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 302.8333333333333) internal successors, (1817), 6 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:25,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:25,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:25,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:35:25,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:26,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:26,000 INFO L85 PathProgramCache]: Analyzing trace with hash -235379199, now seen corresponding path program 1 times [2023-08-25 05:35:26,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:26,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350768634] [2023-08-25 05:35:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:26,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:26,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350768634] [2023-08-25 05:35:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350768634] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:26,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:26,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:35:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886624728] [2023-08-25 05:35:26,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:26,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:35:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:26,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:35:26,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:35:26,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 879 [2023-08-25 05:35:26,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:26,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 879 [2023-08-25 05:35:26,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:26,411 INFO L124 PetriNetUnfolderBase]: 1952/3013 cut-off events. [2023-08-25 05:35:26,412 INFO L125 PetriNetUnfolderBase]: For 80/377 co-relation queries the response was YES. [2023-08-25 05:35:26,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5812 conditions, 3013 events. 1952/3013 cut-off events. For 80/377 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13311 event pairs, 624 based on Foata normal form. 10/2282 useless extension candidates. Maximal degree in co-relation 5808. Up to 1650 conditions per place. [2023-08-25 05:35:26,432 INFO L140 encePairwiseOnDemand]: 873/879 looper letters, 51 selfloop transitions, 5 changer transitions 1/73 dead transitions. [2023-08-25 05:35:26,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 288 flow [2023-08-25 05:35:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:35:26,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:35:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1030 transitions. [2023-08-25 05:35:26,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3905953735305271 [2023-08-25 05:35:26,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1030 transitions. [2023-08-25 05:35:26,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1030 transitions. [2023-08-25 05:35:26,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:26,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1030 transitions. [2023-08-25 05:35:26,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.3333333333333) internal successors, (1030), 3 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 879.0) internal successors, (3516), 4 states have internal predecessors, (3516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 879.0) internal successors, (3516), 4 states have internal predecessors, (3516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,444 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 113 flow. Second operand 3 states and 1030 transitions. [2023-08-25 05:35:26,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 288 flow [2023-08-25 05:35:26,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 279 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 05:35:26,446 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 139 flow [2023-08-25 05:35:26,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2023-08-25 05:35:26,449 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -74 predicate places. [2023-08-25 05:35:26,449 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 139 flow [2023-08-25 05:35:26,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:26,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:26,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:35:26,450 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:26,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1888181905, now seen corresponding path program 1 times [2023-08-25 05:35:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:26,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471865045] [2023-08-25 05:35:26,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:26,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:26,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471865045] [2023-08-25 05:35:26,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471865045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:26,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:26,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:35:26,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649828673] [2023-08-25 05:35:26,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:26,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:35:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:35:26,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:35:26,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 879 [2023-08-25 05:35:26,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 310.8) internal successors, (1554), 5 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:26,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:26,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 879 [2023-08-25 05:35:26,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:27,155 INFO L124 PetriNetUnfolderBase]: 2683/4516 cut-off events. [2023-08-25 05:35:27,155 INFO L125 PetriNetUnfolderBase]: For 783/783 co-relation queries the response was YES. [2023-08-25 05:35:27,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9840 conditions, 4516 events. 2683/4516 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 23863 event pairs, 1920 based on Foata normal form. 1/3565 useless extension candidates. Maximal degree in co-relation 9835. Up to 2594 conditions per place. [2023-08-25 05:35:27,173 INFO L140 encePairwiseOnDemand]: 873/879 looper letters, 34 selfloop transitions, 2 changer transitions 26/78 dead transitions. [2023-08-25 05:35:27,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 78 transitions, 338 flow [2023-08-25 05:35:27,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:35:27,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:35:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1283 transitions. [2023-08-25 05:35:27,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3649032992036405 [2023-08-25 05:35:27,177 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1283 transitions. [2023-08-25 05:35:27,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1283 transitions. [2023-08-25 05:35:27,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:27,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1283 transitions. [2023-08-25 05:35:27,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 320.75) internal successors, (1283), 4 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:27,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:27,185 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:27,186 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 139 flow. Second operand 4 states and 1283 transitions. [2023-08-25 05:35:27,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 78 transitions, 338 flow [2023-08-25 05:35:27,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 78 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:35:27,188 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 152 flow [2023-08-25 05:35:27,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2023-08-25 05:35:27,189 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -70 predicate places. [2023-08-25 05:35:27,189 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 152 flow [2023-08-25 05:35:27,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 310.8) internal successors, (1554), 5 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:27,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:27,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:27,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:35:27,190 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:27,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:27,190 INFO L85 PathProgramCache]: Analyzing trace with hash -215053666, now seen corresponding path program 1 times [2023-08-25 05:35:27,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:27,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89527501] [2023-08-25 05:35:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:27,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:27,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89527501] [2023-08-25 05:35:27,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89527501] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:27,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615629685] [2023-08-25 05:35:27,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:27,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:27,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:27,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:27,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 05:35:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:27,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-25 05:35:27,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:27,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:27,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-25 05:35:27,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615629685] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:27,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-25 05:35:27,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2023-08-25 05:35:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077690461] [2023-08-25 05:35:27,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:27,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:35:27,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:27,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:35:27,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-25 05:35:27,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 879 [2023-08-25 05:35:27,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 152 flow. Second operand has 4 states, 4 states have (on average 331.25) internal successors, (1325), 4 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:27,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:27,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 879 [2023-08-25 05:35:27,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:28,387 INFO L124 PetriNetUnfolderBase]: 4054/6256 cut-off events. [2023-08-25 05:35:28,387 INFO L125 PetriNetUnfolderBase]: For 1618/1903 co-relation queries the response was YES. [2023-08-25 05:35:28,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14233 conditions, 6256 events. 4054/6256 cut-off events. For 1618/1903 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 32371 event pairs, 871 based on Foata normal form. 19/5482 useless extension candidates. Maximal degree in co-relation 14226. Up to 2129 conditions per place. [2023-08-25 05:35:28,422 INFO L140 encePairwiseOnDemand]: 873/879 looper letters, 84 selfloop transitions, 8 changer transitions 1/109 dead transitions. [2023-08-25 05:35:28,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 109 transitions, 508 flow [2023-08-25 05:35:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:35:28,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:35:28,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1381 transitions. [2023-08-25 05:35:28,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3927758816837315 [2023-08-25 05:35:28,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1381 transitions. [2023-08-25 05:35:28,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1381 transitions. [2023-08-25 05:35:28,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:28,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1381 transitions. [2023-08-25 05:35:28,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 345.25) internal successors, (1381), 4 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:28,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:28,434 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:28,434 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 152 flow. Second operand 4 states and 1381 transitions. [2023-08-25 05:35:28,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 109 transitions, 508 flow [2023-08-25 05:35:28,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 109 transitions, 500 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-25 05:35:28,437 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 210 flow [2023-08-25 05:35:28,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2023-08-25 05:35:28,438 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -66 predicate places. [2023-08-25 05:35:28,438 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 210 flow [2023-08-25 05:35:28,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 331.25) internal successors, (1325), 4 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:28,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:28,439 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:28,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 05:35:28,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:28,645 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:28,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 540550763, now seen corresponding path program 1 times [2023-08-25 05:35:28,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:28,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261502741] [2023-08-25 05:35:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:28,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:28,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:28,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261502741] [2023-08-25 05:35:28,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261502741] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:35:28,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:35:28,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:35:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924961375] [2023-08-25 05:35:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:35:28,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:35:28,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:28,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:35:28,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:35:28,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 879 [2023-08-25 05:35:28,760 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 331.25) internal successors, (1325), 4 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:28,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:28,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 879 [2023-08-25 05:35:28,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:29,733 INFO L124 PetriNetUnfolderBase]: 5996/8862 cut-off events. [2023-08-25 05:35:29,734 INFO L125 PetriNetUnfolderBase]: For 5217/5909 co-relation queries the response was YES. [2023-08-25 05:35:29,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23407 conditions, 8862 events. 5996/8862 cut-off events. For 5217/5909 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 45199 event pairs, 1179 based on Foata normal form. 12/8792 useless extension candidates. Maximal degree in co-relation 23398. Up to 4734 conditions per place. [2023-08-25 05:35:29,782 INFO L140 encePairwiseOnDemand]: 873/879 looper letters, 86 selfloop transitions, 13 changer transitions 5/120 dead transitions. [2023-08-25 05:35:29,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 120 transitions, 634 flow [2023-08-25 05:35:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:35:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:35:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1381 transitions. [2023-08-25 05:35:29,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3927758816837315 [2023-08-25 05:35:29,786 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1381 transitions. [2023-08-25 05:35:29,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1381 transitions. [2023-08-25 05:35:29,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:29,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1381 transitions. [2023-08-25 05:35:29,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 345.25) internal successors, (1381), 4 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:29,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:29,794 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 879.0) internal successors, (4395), 5 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:29,794 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 210 flow. Second operand 4 states and 1381 transitions. [2023-08-25 05:35:29,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 120 transitions, 634 flow [2023-08-25 05:35:29,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 120 transitions, 614 flow, removed 10 selfloop flow, removed 1 redundant places. [2023-08-25 05:35:29,811 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 330 flow [2023-08-25 05:35:29,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2023-08-25 05:35:29,812 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -61 predicate places. [2023-08-25 05:35:29,813 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 330 flow [2023-08-25 05:35:29,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 331.25) internal successors, (1325), 4 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:29,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:29,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:29,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:35:29,814 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:29,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:29,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1832654896, now seen corresponding path program 1 times [2023-08-25 05:35:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:29,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559633552] [2023-08-25 05:35:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:29,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559633552] [2023-08-25 05:35:29,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559633552] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:29,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031798488] [2023-08-25 05:35:29,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:29,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:29,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:29,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:30,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 05:35:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:30,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 9 conjunts are in the unsatisfiable core [2023-08-25 05:35:30,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:30,349 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031798488] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:30,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:30,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2023-08-25 05:35:30,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889571369] [2023-08-25 05:35:30,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:30,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-25 05:35:30,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:30,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-25 05:35:30,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-08-25 05:35:30,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 879 [2023-08-25 05:35:30,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 330 flow. Second operand has 14 states, 14 states have (on average 308.7857142857143) internal successors, (4323), 14 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:30,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:30,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 879 [2023-08-25 05:35:30,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:31,689 INFO L124 PetriNetUnfolderBase]: 6113/9558 cut-off events. [2023-08-25 05:35:31,690 INFO L125 PetriNetUnfolderBase]: For 10698/10772 co-relation queries the response was YES. [2023-08-25 05:35:31,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26049 conditions, 9558 events. 6113/9558 cut-off events. For 10698/10772 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 53605 event pairs, 3432 based on Foata normal form. 132/9567 useless extension candidates. Maximal degree in co-relation 26038. Up to 7907 conditions per place. [2023-08-25 05:35:31,746 INFO L140 encePairwiseOnDemand]: 871/879 looper letters, 49 selfloop transitions, 6 changer transitions 20/91 dead transitions. [2023-08-25 05:35:31,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 91 transitions, 544 flow [2023-08-25 05:35:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 05:35:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 05:35:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1875 transitions. [2023-08-25 05:35:31,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35551763367463024 [2023-08-25 05:35:31,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1875 transitions. [2023-08-25 05:35:31,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1875 transitions. [2023-08-25 05:35:31,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:31,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1875 transitions. [2023-08-25 05:35:31,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 312.5) internal successors, (1875), 6 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:31,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:31,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 879.0) internal successors, (6153), 7 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:31,763 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 330 flow. Second operand 6 states and 1875 transitions. [2023-08-25 05:35:31,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 91 transitions, 544 flow [2023-08-25 05:35:31,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 91 transitions, 540 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-25 05:35:31,780 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 356 flow [2023-08-25 05:35:31,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2023-08-25 05:35:31,781 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -54 predicate places. [2023-08-25 05:35:31,781 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 356 flow [2023-08-25 05:35:31,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 308.7857142857143) internal successors, (4323), 14 states have internal predecessors, (4323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:31,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:31,783 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:31,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-25 05:35:31,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-25 05:35:31,989 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:31,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:31,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1472300493, now seen corresponding path program 2 times [2023-08-25 05:35:31,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:31,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733616722] [2023-08-25 05:35:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:31,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:33,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733616722] [2023-08-25 05:35:33,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733616722] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:33,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570704017] [2023-08-25 05:35:33,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:35:33,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:33,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:33,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:33,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 05:35:33,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:35:33,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:35:33,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 56 conjunts are in the unsatisfiable core [2023-08-25 05:35:33,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:33,742 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:35:33,743 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 15 [2023-08-25 05:35:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:34,046 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:35:34,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570704017] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:34,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:34,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 21 [2023-08-25 05:35:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911707633] [2023-08-25 05:35:34,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-08-25 05:35:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-08-25 05:35:34,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2023-08-25 05:35:34,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:35:34,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 356 flow. Second operand has 22 states, 22 states have (on average 281.72727272727275) internal successors, (6198), 22 states have internal predecessors, (6198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:34,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:34,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:35:34,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:37,225 INFO L124 PetriNetUnfolderBase]: 12479/17892 cut-off events. [2023-08-25 05:35:37,225 INFO L125 PetriNetUnfolderBase]: For 17455/18008 co-relation queries the response was YES. [2023-08-25 05:35:37,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50927 conditions, 17892 events. 12479/17892 cut-off events. For 17455/18008 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 98221 event pairs, 941 based on Foata normal form. 118/17846 useless extension candidates. Maximal degree in co-relation 50913. Up to 10151 conditions per place. [2023-08-25 05:35:37,344 INFO L140 encePairwiseOnDemand]: 864/879 looper letters, 309 selfloop transitions, 201 changer transitions 39/565 dead transitions. [2023-08-25 05:35:37,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 565 transitions, 3415 flow [2023-08-25 05:35:37,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-25 05:35:37,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-25 05:35:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 9361 transitions. [2023-08-25 05:35:37,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3328000568828214 [2023-08-25 05:35:37,370 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 9361 transitions. [2023-08-25 05:35:37,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 9361 transitions. [2023-08-25 05:35:37,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:37,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 9361 transitions. [2023-08-25 05:35:37,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 292.53125) internal successors, (9361), 32 states have internal predecessors, (9361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:37,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 879.0) internal successors, (29007), 33 states have internal predecessors, (29007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:37,436 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 879.0) internal successors, (29007), 33 states have internal predecessors, (29007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:37,436 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 356 flow. Second operand 32 states and 9361 transitions. [2023-08-25 05:35:37,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 565 transitions, 3415 flow [2023-08-25 05:35:37,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 565 transitions, 3388 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-25 05:35:37,485 INFO L231 Difference]: Finished difference. Result has 122 places, 283 transitions, 2298 flow [2023-08-25 05:35:37,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=2298, PETRI_PLACES=122, PETRI_TRANSITIONS=283} [2023-08-25 05:35:37,486 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -7 predicate places. [2023-08-25 05:35:37,486 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 283 transitions, 2298 flow [2023-08-25 05:35:37,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 281.72727272727275) internal successors, (6198), 22 states have internal predecessors, (6198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:37,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:37,488 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:37,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 05:35:37,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:37,696 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:37,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash -62319800, now seen corresponding path program 1 times [2023-08-25 05:35:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118713383] [2023-08-25 05:35:37,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:37,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:38,713 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:38,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:38,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118713383] [2023-08-25 05:35:38,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118713383] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:38,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528784596] [2023-08-25 05:35:38,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:38,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:38,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:38,717 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:38,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 05:35:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:38,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 45 conjunts are in the unsatisfiable core [2023-08-25 05:35:38,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:39,140 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-08-25 05:35:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:35:39,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:39,281 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:35:39,281 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 16 [2023-08-25 05:35:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:35:39,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528784596] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:39,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:39,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2023-08-25 05:35:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684286156] [2023-08-25 05:35:39,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:39,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 05:35:39,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:39,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 05:35:39,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2023-08-25 05:35:39,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:35:39,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 283 transitions, 2298 flow. Second operand has 20 states, 20 states have (on average 281.7) internal successors, (5634), 20 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:39,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:39,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:35:39,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:42,813 INFO L124 PetriNetUnfolderBase]: 14723/22065 cut-off events. [2023-08-25 05:35:42,813 INFO L125 PetriNetUnfolderBase]: For 53912/54965 co-relation queries the response was YES. [2023-08-25 05:35:42,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80021 conditions, 22065 events. 14723/22065 cut-off events. For 53912/54965 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 134181 event pairs, 1792 based on Foata normal form. 288/22206 useless extension candidates. Maximal degree in co-relation 79988. Up to 14007 conditions per place. [2023-08-25 05:35:43,030 INFO L140 encePairwiseOnDemand]: 867/879 looper letters, 345 selfloop transitions, 100 changer transitions 31/492 dead transitions. [2023-08-25 05:35:43,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 492 transitions, 4198 flow [2023-08-25 05:35:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 05:35:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 05:35:43,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6108 transitions. [2023-08-25 05:35:43,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.330895498130993 [2023-08-25 05:35:43,042 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6108 transitions. [2023-08-25 05:35:43,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6108 transitions. [2023-08-25 05:35:43,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:43,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6108 transitions. [2023-08-25 05:35:43,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 290.85714285714283) internal successors, (6108), 21 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:43,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:43,210 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:43,210 INFO L175 Difference]: Start difference. First operand has 122 places, 283 transitions, 2298 flow. Second operand 21 states and 6108 transitions. [2023-08-25 05:35:43,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 492 transitions, 4198 flow [2023-08-25 05:35:43,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 492 transitions, 4023 flow, removed 61 selfloop flow, removed 3 redundant places. [2023-08-25 05:35:43,481 INFO L231 Difference]: Finished difference. Result has 143 places, 300 transitions, 2614 flow [2023-08-25 05:35:43,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=1898, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2614, PETRI_PLACES=143, PETRI_TRANSITIONS=300} [2023-08-25 05:35:43,484 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 14 predicate places. [2023-08-25 05:35:43,484 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 300 transitions, 2614 flow [2023-08-25 05:35:43,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 281.7) internal successors, (5634), 20 states have internal predecessors, (5634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:43,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:43,485 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:43,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 05:35:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:43,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:43,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash -639846070, now seen corresponding path program 2 times [2023-08-25 05:35:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:43,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305764057] [2023-08-25 05:35:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:43,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:44,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:44,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305764057] [2023-08-25 05:35:44,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305764057] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:44,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399396020] [2023-08-25 05:35:44,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:35:44,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:44,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:44,593 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:44,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 05:35:45,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:35:45,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:35:45,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 05:35:45,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:45,342 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:35:45,342 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:35:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:35:45,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:45,619 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:35:45,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399396020] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:45,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:45,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 17 [2023-08-25 05:35:45,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136714226] [2023-08-25 05:35:45,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:45,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-25 05:35:45,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-25 05:35:45,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2023-08-25 05:35:45,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:35:45,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 300 transitions, 2614 flow. Second operand has 18 states, 18 states have (on average 281.3333333333333) internal successors, (5064), 18 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:45,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:45,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:35:45,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:35:49,732 INFO L124 PetriNetUnfolderBase]: 16123/24095 cut-off events. [2023-08-25 05:35:49,732 INFO L125 PetriNetUnfolderBase]: For 86133/87204 co-relation queries the response was YES. [2023-08-25 05:35:49,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99525 conditions, 24095 events. 16123/24095 cut-off events. For 86133/87204 co-relation queries the response was YES. Maximal size of possible extension queue 791. Compared 148280 event pairs, 2422 based on Foata normal form. 35/23968 useless extension candidates. Maximal degree in co-relation 99483. Up to 17368 conditions per place. [2023-08-25 05:35:50,247 INFO L140 encePairwiseOnDemand]: 867/879 looper letters, 325 selfloop transitions, 168 changer transitions 34/543 dead transitions. [2023-08-25 05:35:50,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 543 transitions, 5188 flow [2023-08-25 05:35:50,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-25 05:35:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-25 05:35:50,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5825 transitions. [2023-08-25 05:35:50,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33134243458475543 [2023-08-25 05:35:50,271 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5825 transitions. [2023-08-25 05:35:50,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5825 transitions. [2023-08-25 05:35:50,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:35:50,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5825 transitions. [2023-08-25 05:35:50,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 291.25) internal successors, (5825), 20 states have internal predecessors, (5825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:50,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 879.0) internal successors, (18459), 21 states have internal predecessors, (18459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:50,304 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 879.0) internal successors, (18459), 21 states have internal predecessors, (18459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:50,304 INFO L175 Difference]: Start difference. First operand has 143 places, 300 transitions, 2614 flow. Second operand 20 states and 5825 transitions. [2023-08-25 05:35:50,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 543 transitions, 5188 flow [2023-08-25 05:35:50,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 543 transitions, 5008 flow, removed 74 selfloop flow, removed 9 redundant places. [2023-08-25 05:35:50,863 INFO L231 Difference]: Finished difference. Result has 161 places, 386 transitions, 4046 flow [2023-08-25 05:35:50,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=2486, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4046, PETRI_PLACES=161, PETRI_TRANSITIONS=386} [2023-08-25 05:35:50,864 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 32 predicate places. [2023-08-25 05:35:50,864 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 386 transitions, 4046 flow [2023-08-25 05:35:50,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 281.3333333333333) internal successors, (5064), 18 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:50,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:35:50,865 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:35:50,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 05:35:51,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-25 05:35:51,071 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:35:51,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:35:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash 530319240, now seen corresponding path program 3 times [2023-08-25 05:35:51,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:35:51,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726867006] [2023-08-25 05:35:51,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:35:51,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:35:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:35:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:51,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:35:51,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726867006] [2023-08-25 05:35:51,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726867006] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:35:51,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640871900] [2023-08-25 05:35:51,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:35:51,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:35:51,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:35:51,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:35:51,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-08-25 05:35:53,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 05:35:53,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:35:53,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 69 conjunts are in the unsatisfiable core [2023-08-25 05:35:53,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:35:53,113 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-08-25 05:35:53,174 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:35:53,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:35:53,296 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:35:53,352 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-08-25 05:35:53,437 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:35:53,437 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:35:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:35:53,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:35:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:35:53,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640871900] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:35:53,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:35:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 6] total 25 [2023-08-25 05:35:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344443081] [2023-08-25 05:35:53,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:35:53,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 05:35:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:35:54,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 05:35:54,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=548, Unknown=0, NotChecked=0, Total=650 [2023-08-25 05:35:54,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:35:54,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 386 transitions, 4046 flow. Second operand has 26 states, 26 states have (on average 246.03846153846155) internal successors, (6397), 26 states have internal predecessors, (6397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:35:54,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:35:54,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:35:54,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:05,222 INFO L124 PetriNetUnfolderBase]: 54857/71195 cut-off events. [2023-08-25 05:36:05,222 INFO L125 PetriNetUnfolderBase]: For 312206/312206 co-relation queries the response was YES. [2023-08-25 05:36:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337705 conditions, 71195 events. 54857/71195 cut-off events. For 312206/312206 co-relation queries the response was YES. Maximal size of possible extension queue 1702. Compared 372613 event pairs, 5492 based on Foata normal form. 2/71197 useless extension candidates. Maximal degree in co-relation 337657. Up to 54302 conditions per place. [2023-08-25 05:36:06,422 INFO L140 encePairwiseOnDemand]: 864/879 looper letters, 674 selfloop transitions, 233 changer transitions 115/1022 dead transitions. [2023-08-25 05:36:06,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 1022 transitions, 8724 flow [2023-08-25 05:36:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-08-25 05:36:06,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-08-25 05:36:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 7727 transitions. [2023-08-25 05:36:06,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30312659369973716 [2023-08-25 05:36:06,437 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 7727 transitions. [2023-08-25 05:36:06,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 7727 transitions. [2023-08-25 05:36:06,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:06,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 7727 transitions. [2023-08-25 05:36:06,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 266.44827586206895) internal successors, (7727), 29 states have internal predecessors, (7727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:06,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 879.0) internal successors, (26370), 30 states have internal predecessors, (26370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:06,474 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 879.0) internal successors, (26370), 30 states have internal predecessors, (26370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:06,474 INFO L175 Difference]: Start difference. First operand has 161 places, 386 transitions, 4046 flow. Second operand 29 states and 7727 transitions. [2023-08-25 05:36:06,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 1022 transitions, 8724 flow [2023-08-25 05:36:11,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 1022 transitions, 8333 flow, removed 183 selfloop flow, removed 6 redundant places. [2023-08-25 05:36:11,883 INFO L231 Difference]: Finished difference. Result has 187 places, 471 transitions, 5384 flow [2023-08-25 05:36:11,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=3675, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5384, PETRI_PLACES=187, PETRI_TRANSITIONS=471} [2023-08-25 05:36:11,884 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 58 predicate places. [2023-08-25 05:36:11,884 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 471 transitions, 5384 flow [2023-08-25 05:36:11,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 246.03846153846155) internal successors, (6397), 26 states have internal predecessors, (6397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:11,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:36:11,885 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:36:11,891 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 05:36:12,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:36:12,085 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:36:12,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:36:12,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1866904193, now seen corresponding path program 1 times [2023-08-25 05:36:12,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:36:12,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348475316] [2023-08-25 05:36:12,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:12,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:36:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:36:12,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:36:12,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348475316] [2023-08-25 05:36:12,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348475316] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:36:12,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554576975] [2023-08-25 05:36:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:12,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:36:12,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:36:12,949 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 05:36:12,956 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 05:36:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:13,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-25 05:36:13,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:36:13,490 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:36:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:36:13,557 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:36:13,635 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:36:13,635 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 16 [2023-08-25 05:36:13,718 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:36:13,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554576975] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:36:13,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:36:13,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 20 [2023-08-25 05:36:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941782905] [2023-08-25 05:36:13,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:36:13,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 05:36:13,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:36:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 05:36:13,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2023-08-25 05:36:13,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:36:13,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 471 transitions, 5384 flow. Second operand has 21 states, 21 states have (on average 281.57142857142856) internal successors, (5913), 21 states have internal predecessors, (5913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:13,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:36:13,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:36:13,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:18,913 INFO L124 PetriNetUnfolderBase]: 21709/32281 cut-off events. [2023-08-25 05:36:18,914 INFO L125 PetriNetUnfolderBase]: For 169021/169949 co-relation queries the response was YES. [2023-08-25 05:36:19,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154835 conditions, 32281 events. 21709/32281 cut-off events. For 169021/169949 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 205529 event pairs, 2801 based on Foata normal form. 45/32092 useless extension candidates. Maximal degree in co-relation 154782. Up to 23113 conditions per place. [2023-08-25 05:36:19,561 INFO L140 encePairwiseOnDemand]: 866/879 looper letters, 539 selfloop transitions, 181 changer transitions 26/762 dead transitions. [2023-08-25 05:36:19,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 762 transitions, 9206 flow [2023-08-25 05:36:19,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 05:36:19,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 05:36:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6687 transitions. [2023-08-25 05:36:19,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3307612405401395 [2023-08-25 05:36:19,571 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 6687 transitions. [2023-08-25 05:36:19,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 6687 transitions. [2023-08-25 05:36:19,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:19,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 6687 transitions. [2023-08-25 05:36:19,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 290.7391304347826) internal successors, (6687), 23 states have internal predecessors, (6687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:19,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 879.0) internal successors, (21096), 24 states have internal predecessors, (21096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:19,598 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 879.0) internal successors, (21096), 24 states have internal predecessors, (21096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:19,598 INFO L175 Difference]: Start difference. First operand has 187 places, 471 transitions, 5384 flow. Second operand 23 states and 6687 transitions. [2023-08-25 05:36:19,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 762 transitions, 9206 flow [2023-08-25 05:36:21,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 762 transitions, 8404 flow, removed 350 selfloop flow, removed 12 redundant places. [2023-08-25 05:36:21,317 INFO L231 Difference]: Finished difference. Result has 203 places, 552 transitions, 6172 flow [2023-08-25 05:36:21,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=4590, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6172, PETRI_PLACES=203, PETRI_TRANSITIONS=552} [2023-08-25 05:36:21,318 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 74 predicate places. [2023-08-25 05:36:21,318 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 552 transitions, 6172 flow [2023-08-25 05:36:21,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 281.57142857142856) internal successors, (5913), 21 states have internal predecessors, (5913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:21,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:36:21,319 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:36:21,324 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 05:36:21,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:36:21,519 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:36:21,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:36:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 453835243, now seen corresponding path program 2 times [2023-08-25 05:36:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:36:21,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802317456] [2023-08-25 05:36:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:21,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:36:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:22,234 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:36:22,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:36:22,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802317456] [2023-08-25 05:36:22,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802317456] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:36:22,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231195345] [2023-08-25 05:36:22,235 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:36:22,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:36:22,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:36:22,237 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 05:36:22,268 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 05:36:22,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:36:22,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:36:22,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 46 conjunts are in the unsatisfiable core [2023-08-25 05:36:22,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:36:22,692 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:36:22,692 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:36:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:36:22,813 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:36:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:36:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231195345] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:36:23,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:36:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 20 [2023-08-25 05:36:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031148826] [2023-08-25 05:36:23,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:36:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 05:36:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:36:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 05:36:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2023-08-25 05:36:23,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:36:23,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 552 transitions, 6172 flow. Second operand has 21 states, 21 states have (on average 281.4761904761905) internal successors, (5911), 21 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:23,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:36:23,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:36:23,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:29,901 INFO L124 PetriNetUnfolderBase]: 23596/34780 cut-off events. [2023-08-25 05:36:29,901 INFO L125 PetriNetUnfolderBase]: For 187631/188768 co-relation queries the response was YES. [2023-08-25 05:36:30,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171524 conditions, 34780 events. 23596/34780 cut-off events. For 187631/188768 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 221104 event pairs, 3298 based on Foata normal form. 100/34638 useless extension candidates. Maximal degree in co-relation 171464. Up to 24871 conditions per place. [2023-08-25 05:36:30,480 INFO L140 encePairwiseOnDemand]: 864/879 looper letters, 548 selfloop transitions, 286 changer transitions 35/885 dead transitions. [2023-08-25 05:36:30,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 885 transitions, 10081 flow [2023-08-25 05:36:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-25 05:36:30,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-25 05:36:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8759 transitions. [2023-08-25 05:36:30,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3321577550246492 [2023-08-25 05:36:30,490 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8759 transitions. [2023-08-25 05:36:30,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8759 transitions. [2023-08-25 05:36:30,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:30,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8759 transitions. [2023-08-25 05:36:30,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 291.96666666666664) internal successors, (8759), 30 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:30,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 879.0) internal successors, (27249), 31 states have internal predecessors, (27249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:30,523 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 879.0) internal successors, (27249), 31 states have internal predecessors, (27249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:30,523 INFO L175 Difference]: Start difference. First operand has 203 places, 552 transitions, 6172 flow. Second operand 30 states and 8759 transitions. [2023-08-25 05:36:30,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 885 transitions, 10081 flow [2023-08-25 05:36:32,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 885 transitions, 9959 flow, removed 49 selfloop flow, removed 7 redundant places. [2023-08-25 05:36:32,086 INFO L231 Difference]: Finished difference. Result has 232 places, 636 transitions, 8136 flow [2023-08-25 05:36:32,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=6050, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8136, PETRI_PLACES=232, PETRI_TRANSITIONS=636} [2023-08-25 05:36:32,087 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 103 predicate places. [2023-08-25 05:36:32,087 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 636 transitions, 8136 flow [2023-08-25 05:36:32,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 281.4761904761905) internal successors, (5911), 21 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:32,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:36:32,088 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:36:32,093 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 05:36:32,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-25 05:36:32,288 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:36:32,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:36:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1486456557, now seen corresponding path program 3 times [2023-08-25 05:36:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:36:32,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555093122] [2023-08-25 05:36:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:36:32,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:36:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:36:33,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:36:33,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:36:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555093122] [2023-08-25 05:36:33,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555093122] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:36:33,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398238068] [2023-08-25 05:36:33,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:36:33,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:36:33,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:36:33,719 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 05:36:33,721 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 05:36:34,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 05:36:34,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:36:34,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 05:36:34,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:36:34,164 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:36:34,164 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 17 [2023-08-25 05:36:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:36:34,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:36:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:36:34,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398238068] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:36:34,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:36:34,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 6] total 19 [2023-08-25 05:36:34,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319124165] [2023-08-25 05:36:34,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:36:34,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-25 05:36:34,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:36:34,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-25 05:36:34,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-08-25 05:36:34,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:36:34,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 636 transitions, 8136 flow. Second operand has 20 states, 20 states have (on average 245.55) internal successors, (4911), 20 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:34,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:36:34,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:36:34,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:36:52,575 INFO L124 PetriNetUnfolderBase]: 79387/103007 cut-off events. [2023-08-25 05:36:52,576 INFO L125 PetriNetUnfolderBase]: For 784555/784555 co-relation queries the response was YES. [2023-08-25 05:36:54,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565336 conditions, 103007 events. 79387/103007 cut-off events. For 784555/784555 co-relation queries the response was YES. Maximal size of possible extension queue 2522. Compared 562718 event pairs, 11446 based on Foata normal form. 724/103731 useless extension candidates. Maximal degree in co-relation 565269. Up to 84571 conditions per place. [2023-08-25 05:36:54,546 INFO L140 encePairwiseOnDemand]: 866/879 looper letters, 782 selfloop transitions, 273 changer transitions 108/1163 dead transitions. [2023-08-25 05:36:54,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 1163 transitions, 13475 flow [2023-08-25 05:36:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-25 05:36:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-25 05:36:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6120 transitions. [2023-08-25 05:36:54,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30271553642973736 [2023-08-25 05:36:54,554 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 6120 transitions. [2023-08-25 05:36:54,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 6120 transitions. [2023-08-25 05:36:54,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:36:54,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 6120 transitions. [2023-08-25 05:36:54,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 266.0869565217391) internal successors, (6120), 23 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:54,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 879.0) internal successors, (21096), 24 states have internal predecessors, (21096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:54,582 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 879.0) internal successors, (21096), 24 states have internal predecessors, (21096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:36:54,582 INFO L175 Difference]: Start difference. First operand has 232 places, 636 transitions, 8136 flow. Second operand 23 states and 6120 transitions. [2023-08-25 05:36:54,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 1163 transitions, 13475 flow [2023-08-25 05:37:05,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 1163 transitions, 12754 flow, removed 314 selfloop flow, removed 13 redundant places. [2023-08-25 05:37:05,829 INFO L231 Difference]: Finished difference. Result has 249 places, 737 transitions, 9959 flow [2023-08-25 05:37:05,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=7415, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9959, PETRI_PLACES=249, PETRI_TRANSITIONS=737} [2023-08-25 05:37:05,831 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 120 predicate places. [2023-08-25 05:37:05,831 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 737 transitions, 9959 flow [2023-08-25 05:37:05,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 245.55) internal successors, (4911), 20 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:05,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:37:05,832 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:37:05,838 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 05:37:06,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-08-25 05:37:06,038 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:37:06,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:37:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1483468665, now seen corresponding path program 4 times [2023-08-25 05:37:06,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:37:06,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509877694] [2023-08-25 05:37:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:37:06,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:37:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:37:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:37:06,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:37:06,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509877694] [2023-08-25 05:37:06,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509877694] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:37:06,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526196754] [2023-08-25 05:37:06,912 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 05:37:06,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:37:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:37:06,917 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 05:37:06,921 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 05:37:07,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 05:37:07,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:37:07,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-25 05:37:07,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:37:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:37:07,370 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 20 treesize of output 22 [2023-08-25 05:37:07,399 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:37:07,399 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 17 [2023-08-25 05:37:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:37:07,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:37:07,805 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 34 treesize of output 26 [2023-08-25 05:37:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:37:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526196754] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:37:07,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:37:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 25 [2023-08-25 05:37:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663671120] [2023-08-25 05:37:07,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:37:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 05:37:07,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:37:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 05:37:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=601, Unknown=4, NotChecked=0, Total=702 [2023-08-25 05:37:07,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 879 [2023-08-25 05:37:07,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 737 transitions, 9959 flow. Second operand has 27 states, 27 states have (on average 271.55555555555554) internal successors, (7332), 27 states have internal predecessors, (7332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:07,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:37:07,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 879 [2023-08-25 05:37:07,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:37:17,792 INFO L124 PetriNetUnfolderBase]: 30354/44987 cut-off events. [2023-08-25 05:37:17,792 INFO L125 PetriNetUnfolderBase]: For 376897/378669 co-relation queries the response was YES. [2023-08-25 05:37:18,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241283 conditions, 44987 events. 30354/44987 cut-off events. For 376897/378669 co-relation queries the response was YES. Maximal size of possible extension queue 1622. Compared 299209 event pairs, 3681 based on Foata normal form. 477/45170 useless extension candidates. Maximal degree in co-relation 241208. Up to 28831 conditions per place. [2023-08-25 05:37:18,625 INFO L140 encePairwiseOnDemand]: 864/879 looper letters, 634 selfloop transitions, 365 changer transitions 70/1081 dead transitions. [2023-08-25 05:37:18,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 1081 transitions, 13720 flow [2023-08-25 05:37:18,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-25 05:37:18,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-25 05:37:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8535 transitions. [2023-08-25 05:37:18,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3236632536973834 [2023-08-25 05:37:18,637 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8535 transitions. [2023-08-25 05:37:18,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8535 transitions. [2023-08-25 05:37:18,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:37:18,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8535 transitions. [2023-08-25 05:37:18,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 284.5) internal successors, (8535), 30 states have internal predecessors, (8535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:18,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 879.0) internal successors, (27249), 31 states have internal predecessors, (27249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:18,670 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 879.0) internal successors, (27249), 31 states have internal predecessors, (27249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:18,671 INFO L175 Difference]: Start difference. First operand has 249 places, 737 transitions, 9959 flow. Second operand 30 states and 8535 transitions. [2023-08-25 05:37:18,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 1081 transitions, 13720 flow [2023-08-25 05:37:23,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1081 transitions, 12601 flow, removed 482 selfloop flow, removed 11 redundant places. [2023-08-25 05:37:23,135 INFO L231 Difference]: Finished difference. Result has 268 places, 758 transitions, 10403 flow [2023-08-25 05:37:23,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=7556, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=10403, PETRI_PLACES=268, PETRI_TRANSITIONS=758} [2023-08-25 05:37:23,136 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 139 predicate places. [2023-08-25 05:37:23,136 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 758 transitions, 10403 flow [2023-08-25 05:37:23,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 271.55555555555554) internal successors, (7332), 27 states have internal predecessors, (7332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:23,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:37:23,137 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:37:23,146 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 05:37:23,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-08-25 05:37:23,343 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:37:23,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:37:23,344 INFO L85 PathProgramCache]: Analyzing trace with hash 74098657, now seen corresponding path program 5 times [2023-08-25 05:37:23,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:37:23,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315479756] [2023-08-25 05:37:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:37:23,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:37:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:37:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:37:24,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:37:24,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315479756] [2023-08-25 05:37:24,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315479756] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:37:24,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556533829] [2023-08-25 05:37:24,542 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 05:37:24,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:37:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:37:24,545 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 05:37:24,548 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 05:37:24,986 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:37:24,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:37:24,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 49 conjunts are in the unsatisfiable core [2023-08-25 05:37:24,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:37:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:37:25,156 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 24 treesize of output 23 [2023-08-25 05:37:25,222 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 25 treesize of output 7 [2023-08-25 05:37:25,317 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:37:25,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:37:25,452 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:37:25,453 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 69 treesize of output 50 [2023-08-25 05:37:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:37:25,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556533829] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:37:25,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:37:25,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 24 [2023-08-25 05:37:25,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664242919] [2023-08-25 05:37:25,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:37:25,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-08-25 05:37:25,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:37:25,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-08-25 05:37:25,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2023-08-25 05:37:25,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:37:25,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 758 transitions, 10403 flow. Second operand has 26 states, 26 states have (on average 245.03846153846155) internal successors, (6371), 26 states have internal predecessors, (6371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:25,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:37:25,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:37:25,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:37:49,624 INFO L124 PetriNetUnfolderBase]: 92421/120131 cut-off events. [2023-08-25 05:37:49,625 INFO L125 PetriNetUnfolderBase]: For 1025931/1025931 co-relation queries the response was YES. [2023-08-25 05:37:51,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704428 conditions, 120131 events. 92421/120131 cut-off events. For 1025931/1025931 co-relation queries the response was YES. Maximal size of possible extension queue 3008. Compared 676079 event pairs, 11821 based on Foata normal form. 1/120132 useless extension candidates. Maximal degree in co-relation 704344. Up to 96306 conditions per place. [2023-08-25 05:37:52,292 INFO L140 encePairwiseOnDemand]: 867/879 looper letters, 916 selfloop transitions, 223 changer transitions 76/1215 dead transitions. [2023-08-25 05:37:52,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1215 transitions, 15771 flow [2023-08-25 05:37:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-25 05:37:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-25 05:37:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6290 transitions. [2023-08-25 05:37:52,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29816078877512325 [2023-08-25 05:37:52,300 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6290 transitions. [2023-08-25 05:37:52,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6290 transitions. [2023-08-25 05:37:52,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:37:52,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6290 transitions. [2023-08-25 05:37:52,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 262.0833333333333) internal successors, (6290), 24 states have internal predecessors, (6290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 879.0) internal successors, (21975), 25 states have internal predecessors, (21975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,324 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 879.0) internal successors, (21975), 25 states have internal predecessors, (21975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:37:52,324 INFO L175 Difference]: Start difference. First operand has 268 places, 758 transitions, 10403 flow. Second operand 24 states and 6290 transitions. [2023-08-25 05:37:52,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1215 transitions, 15771 flow [2023-08-25 05:38:22,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1215 transitions, 14624 flow, removed 500 selfloop flow, removed 16 redundant places. [2023-08-25 05:38:22,104 INFO L231 Difference]: Finished difference. Result has 280 places, 806 transitions, 10905 flow [2023-08-25 05:38:22,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=9386, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=758, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=10905, PETRI_PLACES=280, PETRI_TRANSITIONS=806} [2023-08-25 05:38:22,105 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 151 predicate places. [2023-08-25 05:38:22,105 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 806 transitions, 10905 flow [2023-08-25 05:38:22,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 245.03846153846155) internal successors, (6371), 26 states have internal predecessors, (6371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:22,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:22,106 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:38:22,117 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 05:38:22,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:22,315 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:38:22,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:22,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1721951195, now seen corresponding path program 6 times [2023-08-25 05:38:22,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:22,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778911905] [2023-08-25 05:38:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:22,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:23,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778911905] [2023-08-25 05:38:23,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778911905] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210883728] [2023-08-25 05:38:23,135 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 05:38:23,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:23,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:23,136 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 05:38:23,138 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 05:38:23,560 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 05:38:23,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:38:23,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 50 conjunts are in the unsatisfiable core [2023-08-25 05:38:23,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:23,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:38:23,680 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:38:23,821 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:38:23,821 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2023-08-25 05:38:23,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:38:23,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:24,180 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 36 treesize of output 27 [2023-08-25 05:38:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:38:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210883728] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:38:24,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:38:24,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 23 [2023-08-25 05:38:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868938359] [2023-08-25 05:38:24,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:38:24,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 05:38:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:24,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 05:38:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=517, Unknown=1, NotChecked=0, Total=600 [2023-08-25 05:38:24,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 879 [2023-08-25 05:38:24,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 806 transitions, 10905 flow. Second operand has 25 states, 25 states have (on average 271.76) internal successors, (6794), 25 states have internal predecessors, (6794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:24,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:24,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 879 [2023-08-25 05:38:24,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:38:36,311 INFO L124 PetriNetUnfolderBase]: 34942/51954 cut-off events. [2023-08-25 05:38:36,312 INFO L125 PetriNetUnfolderBase]: For 465467/466585 co-relation queries the response was YES. [2023-08-25 05:38:37,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293875 conditions, 51954 events. 34942/51954 cut-off events. For 465467/466585 co-relation queries the response was YES. Maximal size of possible extension queue 1899. Compared 355937 event pairs, 5321 based on Foata normal form. 98/51680 useless extension candidates. Maximal degree in co-relation 293788. Up to 39731 conditions per place. [2023-08-25 05:38:37,524 INFO L140 encePairwiseOnDemand]: 865/879 looper letters, 781 selfloop transitions, 438 changer transitions 57/1288 dead transitions. [2023-08-25 05:38:37,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1288 transitions, 18593 flow [2023-08-25 05:38:37,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-08-25 05:38:37,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2023-08-25 05:38:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 10956 transitions. [2023-08-25 05:38:37,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.319593944167323 [2023-08-25 05:38:37,530 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 10956 transitions. [2023-08-25 05:38:37,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 10956 transitions. [2023-08-25 05:38:37,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:38:37,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 10956 transitions. [2023-08-25 05:38:37,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 40 states, 39 states have (on average 280.9230769230769) internal successors, (10956), 39 states have internal predecessors, (10956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:37,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 40 states, 40 states have (on average 879.0) internal successors, (35160), 40 states have internal predecessors, (35160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:37,566 INFO L81 ComplementDD]: Finished complementDD. Result has 40 states, 40 states have (on average 879.0) internal successors, (35160), 40 states have internal predecessors, (35160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:37,566 INFO L175 Difference]: Start difference. First operand has 280 places, 806 transitions, 10905 flow. Second operand 39 states and 10956 transitions. [2023-08-25 05:38:37,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1288 transitions, 18593 flow [2023-08-25 05:38:40,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1288 transitions, 18316 flow, removed 70 selfloop flow, removed 12 redundant places. [2023-08-25 05:38:40,744 INFO L231 Difference]: Finished difference. Result has 314 places, 981 transitions, 15604 flow [2023-08-25 05:38:40,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=10673, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=806, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=521, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=15604, PETRI_PLACES=314, PETRI_TRANSITIONS=981} [2023-08-25 05:38:40,745 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 185 predicate places. [2023-08-25 05:38:40,745 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 981 transitions, 15604 flow [2023-08-25 05:38:40,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 271.76) internal successors, (6794), 25 states have internal predecessors, (6794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:40,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:38:40,746 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:38:40,751 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 05:38:40,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:40,946 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:38:40,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:38:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash 420012357, now seen corresponding path program 3 times [2023-08-25 05:38:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:38:40,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601890604] [2023-08-25 05:38:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:38:40,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:38:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:38:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:38:42,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:38:42,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601890604] [2023-08-25 05:38:42,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601890604] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:38:42,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474036057] [2023-08-25 05:38:42,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:38:42,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:38:42,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:38:42,061 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 05:38:42,062 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 05:38:42,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 05:38:42,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:38:42,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 05:38:42,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:38:42,623 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:38:42,623 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:38:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:38:42,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:38:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:38:42,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474036057] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:38:42,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:38:42,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 6] total 20 [2023-08-25 05:38:42,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191070211] [2023-08-25 05:38:42,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:38:42,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 05:38:42,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:38:42,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 05:38:42,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-08-25 05:38:42,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:38:42,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 981 transitions, 15604 flow. Second operand has 21 states, 21 states have (on average 245.38095238095238) internal successors, (5153), 21 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:38:42,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:38:42,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:38:42,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:39:14,103 INFO L124 PetriNetUnfolderBase]: 105796/137462 cut-off events. [2023-08-25 05:39:14,104 INFO L125 PetriNetUnfolderBase]: For 1454321/1454321 co-relation queries the response was YES. [2023-08-25 05:39:17,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858881 conditions, 137462 events. 105796/137462 cut-off events. For 1454321/1454321 co-relation queries the response was YES. Maximal size of possible extension queue 3362. Compared 780523 event pairs, 16131 based on Foata normal form. 2/137464 useless extension candidates. Maximal degree in co-relation 858786. Up to 124382 conditions per place. [2023-08-25 05:39:17,593 INFO L140 encePairwiseOnDemand]: 866/879 looper letters, 939 selfloop transitions, 294 changer transitions 64/1297 dead transitions. [2023-08-25 05:39:17,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1297 transitions, 20237 flow [2023-08-25 05:39:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-25 05:39:17,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-25 05:39:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4719 transitions. [2023-08-25 05:39:17,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.29825559347743646 [2023-08-25 05:39:17,597 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4719 transitions. [2023-08-25 05:39:17,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4719 transitions. [2023-08-25 05:39:17,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:39:17,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4719 transitions. [2023-08-25 05:39:17,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 262.1666666666667) internal successors, (4719), 18 states have internal predecessors, (4719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:17,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 879.0) internal successors, (16701), 19 states have internal predecessors, (16701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:17,606 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 879.0) internal successors, (16701), 19 states have internal predecessors, (16701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:17,606 INFO L175 Difference]: Start difference. First operand has 314 places, 981 transitions, 15604 flow. Second operand 18 states and 4719 transitions. [2023-08-25 05:39:17,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1297 transitions, 20237 flow [2023-08-25 05:39:51,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1297 transitions, 18493 flow, removed 804 selfloop flow, removed 13 redundant places. [2023-08-25 05:39:51,655 INFO L231 Difference]: Finished difference. Result has 323 places, 1041 transitions, 15823 flow [2023-08-25 05:39:51,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=13860, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=981, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15823, PETRI_PLACES=323, PETRI_TRANSITIONS=1041} [2023-08-25 05:39:51,656 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 194 predicate places. [2023-08-25 05:39:51,656 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 1041 transitions, 15823 flow [2023-08-25 05:39:51,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 245.38095238095238) internal successors, (5153), 21 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:51,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:39:51,657 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:39:51,666 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 05:39:51,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-08-25 05:39:51,866 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:39:51,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:39:51,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1750656501, now seen corresponding path program 4 times [2023-08-25 05:39:51,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:39:51,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747965698] [2023-08-25 05:39:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:39:51,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:39:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:39:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:39:52,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:39:52,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747965698] [2023-08-25 05:39:52,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747965698] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:39:52,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138458443] [2023-08-25 05:39:52,545 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-08-25 05:39:52,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:39:52,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:39:52,549 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:39:52,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-08-25 05:39:52,897 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-08-25 05:39:52,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:39:52,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 05:39:52,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:39:52,961 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:39:52,961 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 17 [2023-08-25 05:39:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:39:53,041 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:39:53,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:39:53,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138458443] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:39:53,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:39:53,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 16 [2023-08-25 05:39:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991252617] [2023-08-25 05:39:53,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:39:53,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-25 05:39:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:39:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-25 05:39:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-08-25 05:39:53,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:39:53,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 1041 transitions, 15823 flow. Second operand has 17 states, 17 states have (on average 281.47058823529414) internal successors, (4785), 17 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:39:53,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:39:53,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:39:53,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:40:05,832 INFO L124 PetriNetUnfolderBase]: 38455/57431 cut-off events. [2023-08-25 05:40:05,832 INFO L125 PetriNetUnfolderBase]: For 652861/654124 co-relation queries the response was YES. [2023-08-25 05:40:07,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338902 conditions, 57431 events. 38455/57431 cut-off events. For 652861/654124 co-relation queries the response was YES. Maximal size of possible extension queue 2177. Compared 400397 event pairs, 5913 based on Foata normal form. 65/57155 useless extension candidates. Maximal degree in co-relation 338805. Up to 44399 conditions per place. [2023-08-25 05:40:07,434 INFO L140 encePairwiseOnDemand]: 866/879 looper letters, 881 selfloop transitions, 347 changer transitions 38/1282 dead transitions. [2023-08-25 05:40:07,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 1282 transitions, 20419 flow [2023-08-25 05:40:07,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 05:40:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 05:40:07,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6139 transitions. [2023-08-25 05:40:07,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33257489571482746 [2023-08-25 05:40:07,438 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 6139 transitions. [2023-08-25 05:40:07,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 6139 transitions. [2023-08-25 05:40:07,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:40:07,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 6139 transitions. [2023-08-25 05:40:07,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 292.3333333333333) internal successors, (6139), 21 states have internal predecessors, (6139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:07,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:07,456 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:07,456 INFO L175 Difference]: Start difference. First operand has 323 places, 1041 transitions, 15823 flow. Second operand 21 states and 6139 transitions. [2023-08-25 05:40:07,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 1282 transitions, 20419 flow [2023-08-25 05:40:13,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1282 transitions, 19526 flow, removed 302 selfloop flow, removed 11 redundant places. [2023-08-25 05:40:13,666 INFO L231 Difference]: Finished difference. Result has 337 places, 1105 transitions, 17105 flow [2023-08-25 05:40:13,667 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=14930, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1041, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=295, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=726, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=17105, PETRI_PLACES=337, PETRI_TRANSITIONS=1105} [2023-08-25 05:40:13,667 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 208 predicate places. [2023-08-25 05:40:13,667 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1105 transitions, 17105 flow [2023-08-25 05:40:13,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 281.47058823529414) internal successors, (4785), 17 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:13,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:40:13,668 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:40:13,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-08-25 05:40:13,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:40:13,875 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:40:13,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:40:13,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1780761354, now seen corresponding path program 1 times [2023-08-25 05:40:13,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:40:13,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549554351] [2023-08-25 05:40:13,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:40:13,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:40:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:40:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:40:14,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:40:14,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549554351] [2023-08-25 05:40:14,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549554351] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:40:14,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479524874] [2023-08-25 05:40:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:40:14,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:40:14,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:40:14,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:40:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-08-25 05:40:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:40:15,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 51 conjunts are in the unsatisfiable core [2023-08-25 05:40:15,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:40:15,391 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 05:40:15,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:40:15,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:40:15,580 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:40:15,580 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 16 [2023-08-25 05:40:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:40:15,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479524874] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:40:15,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:40:15,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 6] total 23 [2023-08-25 05:40:15,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528088168] [2023-08-25 05:40:15,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:40:15,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 05:40:15,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:40:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 05:40:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2023-08-25 05:40:15,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:40:15,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1105 transitions, 17105 flow. Second operand has 24 states, 24 states have (on average 245.58333333333334) internal successors, (5894), 24 states have internal predecessors, (5894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:15,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:40:15,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:40:15,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:40:50,922 INFO L124 PetriNetUnfolderBase]: 117074/152037 cut-off events. [2023-08-25 05:40:50,923 INFO L125 PetriNetUnfolderBase]: For 1955060/1955060 co-relation queries the response was YES. [2023-08-25 05:40:54,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983172 conditions, 152037 events. 117074/152037 cut-off events. For 1955060/1955060 co-relation queries the response was YES. Maximal size of possible extension queue 3767. Compared 874332 event pairs, 16184 based on Foata normal form. 1/152038 useless extension candidates. Maximal degree in co-relation 983069. Up to 136640 conditions per place. [2023-08-25 05:40:55,295 INFO L140 encePairwiseOnDemand]: 867/879 looper letters, 1147 selfloop transitions, 268 changer transitions 94/1509 dead transitions. [2023-08-25 05:40:55,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1509 transitions, 23183 flow [2023-08-25 05:40:55,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-25 05:40:55,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-25 05:40:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5515 transitions. [2023-08-25 05:40:55,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2987702475757083 [2023-08-25 05:40:55,299 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5515 transitions. [2023-08-25 05:40:55,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5515 transitions. [2023-08-25 05:40:55,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:40:55,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5515 transitions. [2023-08-25 05:40:55,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 262.6190476190476) internal successors, (5515), 21 states have internal predecessors, (5515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:55,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:55,310 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 879.0) internal successors, (19338), 22 states have internal predecessors, (19338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:40:55,310 INFO L175 Difference]: Start difference. First operand has 337 places, 1105 transitions, 17105 flow. Second operand 21 states and 5515 transitions. [2023-08-25 05:40:55,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1509 transitions, 23183 flow [2023-08-25 05:41:26,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1509 transitions, 22044 flow, removed 419 selfloop flow, removed 10 redundant places. [2023-08-25 05:41:26,210 INFO L231 Difference]: Finished difference. Result has 352 places, 1155 transitions, 18037 flow [2023-08-25 05:41:26,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=15992, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=878, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=18037, PETRI_PLACES=352, PETRI_TRANSITIONS=1155} [2023-08-25 05:41:26,211 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 223 predicate places. [2023-08-25 05:41:26,211 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 1155 transitions, 18037 flow [2023-08-25 05:41:26,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 245.58333333333334) internal successors, (5894), 24 states have internal predecessors, (5894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:26,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:41:26,212 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:41:26,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-08-25 05:41:26,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:41:26,417 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:41:26,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:41:26,418 INFO L85 PathProgramCache]: Analyzing trace with hash 278726608, now seen corresponding path program 2 times [2023-08-25 05:41:26,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:41:26,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146783667] [2023-08-25 05:41:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:41:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:41:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:41:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:41:27,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:41:27,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146783667] [2023-08-25 05:41:27,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146783667] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:41:27,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425129435] [2023-08-25 05:41:27,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-25 05:41:27,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:41:27,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:41:27,041 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:41:27,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-08-25 05:41:27,581 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:41:27,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:41:27,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 54 conjunts are in the unsatisfiable core [2023-08-25 05:41:27,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:41:27,770 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:41:27,771 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:41:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:41:27,941 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:41:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:41:28,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425129435] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:41:28,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:41:28,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6] total 22 [2023-08-25 05:41:28,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355058517] [2023-08-25 05:41:28,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:41:28,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-08-25 05:41:28,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:41:28,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-08-25 05:41:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2023-08-25 05:41:28,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 879 [2023-08-25 05:41:28,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1155 transitions, 18037 flow. Second operand has 23 states, 23 states have (on average 281.60869565217394) internal successors, (6477), 23 states have internal predecessors, (6477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:28,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:41:28,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 879 [2023-08-25 05:41:28,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:41:44,703 INFO L124 PetriNetUnfolderBase]: 42398/63173 cut-off events. [2023-08-25 05:41:44,703 INFO L125 PetriNetUnfolderBase]: For 824095/826240 co-relation queries the response was YES. [2023-08-25 05:41:46,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390084 conditions, 63173 events. 42398/63173 cut-off events. For 824095/826240 co-relation queries the response was YES. Maximal size of possible extension queue 2450. Compared 444575 event pairs, 6555 based on Foata normal form. 101/62877 useless extension candidates. Maximal degree in co-relation 389975. Up to 48441 conditions per place. [2023-08-25 05:41:46,535 INFO L140 encePairwiseOnDemand]: 864/879 looper letters, 1001 selfloop transitions, 393 changer transitions 42/1452 dead transitions. [2023-08-25 05:41:46,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1452 transitions, 23620 flow [2023-08-25 05:41:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-25 05:41:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-25 05:41:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 7324 transitions. [2023-08-25 05:41:46,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33328782707622295 [2023-08-25 05:41:46,541 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 7324 transitions. [2023-08-25 05:41:46,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 7324 transitions. [2023-08-25 05:41:46,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:41:46,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 7324 transitions. [2023-08-25 05:41:46,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 292.96) internal successors, (7324), 25 states have internal predecessors, (7324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:46,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 879.0) internal successors, (22854), 26 states have internal predecessors, (22854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:46,563 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 879.0) internal successors, (22854), 26 states have internal predecessors, (22854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:46,563 INFO L175 Difference]: Start difference. First operand has 352 places, 1155 transitions, 18037 flow. Second operand 25 states and 7324 transitions. [2023-08-25 05:41:46,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1452 transitions, 23620 flow [2023-08-25 05:41:54,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1452 transitions, 23459 flow, removed 63 selfloop flow, removed 8 redundant places. [2023-08-25 05:41:54,882 INFO L231 Difference]: Finished difference. Result has 374 places, 1225 transitions, 20660 flow [2023-08-25 05:41:54,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=17880, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=803, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=20660, PETRI_PLACES=374, PETRI_TRANSITIONS=1225} [2023-08-25 05:41:54,884 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 245 predicate places. [2023-08-25 05:41:54,884 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 1225 transitions, 20660 flow [2023-08-25 05:41:54,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 281.60869565217394) internal successors, (6477), 23 states have internal predecessors, (6477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:54,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:41:54,885 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:41:54,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-08-25 05:41:55,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-08-25 05:41:55,092 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:41:55,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:41:55,092 INFO L85 PathProgramCache]: Analyzing trace with hash 4820708, now seen corresponding path program 3 times [2023-08-25 05:41:55,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:41:55,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534394999] [2023-08-25 05:41:55,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:41:55,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:41:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:41:56,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:41:56,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:41:56,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534394999] [2023-08-25 05:41:56,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534394999] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:41:56,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644316644] [2023-08-25 05:41:56,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 05:41:56,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:41:56,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:41:56,141 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:41:56,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-08-25 05:41:57,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-08-25 05:41:57,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:41:57,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 39 conjunts are in the unsatisfiable core [2023-08-25 05:41:57,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:41:57,223 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:41:57,223 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2023-08-25 05:41:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 05:41:57,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:41:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:41:57,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644316644] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:41:57,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:41:57,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 6] total 20 [2023-08-25 05:41:57,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968754739] [2023-08-25 05:41:57,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:41:57,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-25 05:41:57,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:41:57,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-25 05:41:57,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2023-08-25 05:41:57,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:41:57,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1225 transitions, 20660 flow. Second operand has 21 states, 21 states have (on average 245.38095238095238) internal successors, (5153), 21 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:41:57,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:41:57,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:41:57,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:42:39,697 INFO L124 PetriNetUnfolderBase]: 128193/166394 cut-off events. [2023-08-25 05:42:39,698 INFO L125 PetriNetUnfolderBase]: For 2571663/2571663 co-relation queries the response was YES. [2023-08-25 05:42:44,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140770 conditions, 166394 events. 128193/166394 cut-off events. For 2571663/2571663 co-relation queries the response was YES. Maximal size of possible extension queue 4080. Compared 962578 event pairs, 19285 based on Foata normal form. 2/166396 useless extension candidates. Maximal degree in co-relation 1140655. Up to 154309 conditions per place. [2023-08-25 05:42:45,083 INFO L140 encePairwiseOnDemand]: 867/879 looper letters, 1162 selfloop transitions, 323 changer transitions 88/1573 dead transitions. [2023-08-25 05:42:45,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1573 transitions, 26418 flow [2023-08-25 05:42:45,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-25 05:42:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-25 05:42:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 4996 transitions. [2023-08-25 05:42:45,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2991437638464763 [2023-08-25 05:42:45,087 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 4996 transitions. [2023-08-25 05:42:45,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 4996 transitions. [2023-08-25 05:42:45,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:42:45,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 4996 transitions. [2023-08-25 05:42:45,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 262.94736842105266) internal successors, (4996), 19 states have internal predecessors, (4996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 879.0) internal successors, (17580), 20 states have internal predecessors, (17580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,099 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 879.0) internal successors, (17580), 20 states have internal predecessors, (17580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:42:45,099 INFO L175 Difference]: Start difference. First operand has 374 places, 1225 transitions, 20660 flow. Second operand 19 states and 4996 transitions. [2023-08-25 05:42:45,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1573 transitions, 26418 flow [2023-08-25 05:43:55,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1573 transitions, 24741 flow, removed 645 selfloop flow, removed 16 redundant places. [2023-08-25 05:43:55,197 INFO L231 Difference]: Finished difference. Result has 382 places, 1280 transitions, 21534 flow [2023-08-25 05:43:55,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=19108, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=930, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=21534, PETRI_PLACES=382, PETRI_TRANSITIONS=1280} [2023-08-25 05:43:55,198 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 253 predicate places. [2023-08-25 05:43:55,198 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 1280 transitions, 21534 flow [2023-08-25 05:43:55,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 245.38095238095238) internal successors, (5153), 21 states have internal predecessors, (5153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:55,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:43:55,199 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:43:55,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-08-25 05:43:55,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:43:55,399 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:43:55,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:43:55,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1938434181, now seen corresponding path program 5 times [2023-08-25 05:43:55,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:43:55,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66416745] [2023-08-25 05:43:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:43:55,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:43:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:43:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:43:56,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:43:56,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66416745] [2023-08-25 05:43:56,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66416745] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:43:56,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303211925] [2023-08-25 05:43:56,562 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 05:43:56,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:43:56,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:43:56,563 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:43:56,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-08-25 05:43:56,947 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-25 05:43:56,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:43:56,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 53 conjunts are in the unsatisfiable core [2023-08-25 05:43:56,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:43:57,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:43:57,124 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:43:57,164 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:43:57,165 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2023-08-25 05:43:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:43:57,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:43:57,562 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:43:57,563 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 56 treesize of output 41 [2023-08-25 05:43:57,567 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2023-08-25 05:43:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:43:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303211925] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:43:57,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:43:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 25 [2023-08-25 05:43:57,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698912668] [2023-08-25 05:43:57,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:43:57,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 05:43:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:43:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 05:43:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=609, Unknown=7, NotChecked=0, Total=702 [2023-08-25 05:43:57,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:43:57,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 1280 transitions, 21534 flow. Second operand has 27 states, 27 states have (on average 245.8148148148148) internal successors, (6637), 27 states have internal predecessors, (6637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:43:57,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:43:57,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:43:57,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:44:57,464 INFO L124 PetriNetUnfolderBase]: 145469/188943 cut-off events. [2023-08-25 05:44:57,464 INFO L125 PetriNetUnfolderBase]: For 3583039/3583039 co-relation queries the response was YES. [2023-08-25 05:45:02,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346698 conditions, 188943 events. 145469/188943 cut-off events. For 3583039/3583039 co-relation queries the response was YES. Maximal size of possible extension queue 4505. Compared 1102833 event pairs, 19813 based on Foata normal form. 3/188946 useless extension candidates. Maximal degree in co-relation 1346576. Up to 153513 conditions per place. [2023-08-25 05:45:03,897 INFO L140 encePairwiseOnDemand]: 838/879 looper letters, 1632 selfloop transitions, 482 changer transitions 282/2396 dead transitions. [2023-08-25 05:45:03,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 2396 transitions, 34776 flow [2023-08-25 05:45:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-08-25 05:45:03,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-08-25 05:45:03,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 12756 transitions. [2023-08-25 05:45:03,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30233219567690556 [2023-08-25 05:45:03,904 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 12756 transitions. [2023-08-25 05:45:03,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 12756 transitions. [2023-08-25 05:45:03,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:45:03,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 12756 transitions. [2023-08-25 05:45:03,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 265.75) internal successors, (12756), 48 states have internal predecessors, (12756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:45:03,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 879.0) internal successors, (43071), 49 states have internal predecessors, (43071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:45:03,936 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 879.0) internal successors, (43071), 49 states have internal predecessors, (43071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:45:03,936 INFO L175 Difference]: Start difference. First operand has 382 places, 1280 transitions, 21534 flow. Second operand 48 states and 12756 transitions. [2023-08-25 05:45:03,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 2396 transitions, 34776 flow [2023-08-25 05:46:31,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 2396 transitions, 33681 flow, removed 429 selfloop flow, removed 9 redundant places. [2023-08-25 05:46:31,851 INFO L231 Difference]: Finished difference. Result has 440 places, 1470 transitions, 27042 flow [2023-08-25 05:46:31,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=879, PETRI_DIFFERENCE_MINUEND_FLOW=20469, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=304, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=927, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=27042, PETRI_PLACES=440, PETRI_TRANSITIONS=1470} [2023-08-25 05:46:31,853 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, 311 predicate places. [2023-08-25 05:46:31,853 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1470 transitions, 27042 flow [2023-08-25 05:46:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 245.8148148148148) internal successors, (6637), 27 states have internal predecessors, (6637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:46:31,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:46:31,854 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:46:31,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-08-25 05:46:32,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:46:32,063 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 119 more)] === [2023-08-25 05:46:32,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:46:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash 394385615, now seen corresponding path program 6 times [2023-08-25 05:46:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:46:32,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195529867] [2023-08-25 05:46:32,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:46:32,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:46:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:46:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:46:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:46:33,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195529867] [2023-08-25 05:46:33,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195529867] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 05:46:33,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868223042] [2023-08-25 05:46:33,117 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 05:46:33,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 05:46:33,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:46:33,118 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 05:46:33,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-08-25 05:46:33,751 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-08-25 05:46:33,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 05:46:33,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 52 conjunts are in the unsatisfiable core [2023-08-25 05:46:33,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 05:46:33,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 05:46:33,874 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-25 05:46:33,965 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 05:46:33,965 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15 [2023-08-25 05:46:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:46:34,132 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 05:46:34,322 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 36 treesize of output 27 [2023-08-25 05:46:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 05:46:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868223042] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 05:46:34,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 05:46:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 25 [2023-08-25 05:46:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476772296] [2023-08-25 05:46:34,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 05:46:34,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-08-25 05:46:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:46:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-08-25 05:46:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=602, Unknown=1, NotChecked=0, Total=702 [2023-08-25 05:46:34,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 879 [2023-08-25 05:46:34,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1470 transitions, 27042 flow. Second operand has 27 states, 27 states have (on average 245.8148148148148) internal successors, (6637), 27 states have internal predecessors, (6637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:46:34,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:46:34,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 879 [2023-08-25 05:46:34,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2023-08-25 05:47:10,759 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 05:47:10,760 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 05:47:11,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-08-25 05:47:11,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-08-25 05:47:14,520 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr30ASSERT_VIOLATIONASSERT (122 of 123 remaining) [2023-08-25 05:47:14,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-25 05:47:14,520 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (121 of 123 remaining) [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (120 of 123 remaining) [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (119 of 123 remaining) [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (118 of 123 remaining) [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (117 of 123 remaining) [2023-08-25 05:47:14,521 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (116 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (115 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (114 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (113 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (112 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (111 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (110 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (109 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (108 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (107 of 123 remaining) [2023-08-25 05:47:14,522 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (106 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (105 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (104 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (103 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (102 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (101 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (100 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (99 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (98 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (97 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (96 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (95 of 123 remaining) [2023-08-25 05:47:14,523 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (94 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONDATA_RACE (93 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONDATA_RACE (92 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONDATA_RACE (91 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONDATA_RACE (90 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err10ASSERT_VIOLATIONDATA_RACE (89 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (88 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (87 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (86 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (85 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (84 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (83 of 123 remaining) [2023-08-25 05:47:14,524 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (82 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (81 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (80 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (79 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (78 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (77 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (76 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (75 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (74 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (73 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (72 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (71 of 123 remaining) [2023-08-25 05:47:14,525 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (70 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (69 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (68 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (67 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (66 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (65 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (64 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (63 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (62 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (61 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (60 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (59 of 123 remaining) [2023-08-25 05:47:14,526 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (58 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (56 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONDATA_RACE (54 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONDATA_RACE (53 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONDATA_RACE (52 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONDATA_RACE (51 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err4ASSERT_VIOLATIONDATA_RACE (50 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err5ASSERT_VIOLATIONDATA_RACE (49 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err6ASSERT_VIOLATIONDATA_RACE (48 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err7ASSERT_VIOLATIONDATA_RACE (47 of 123 remaining) [2023-08-25 05:47:14,527 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err8ASSERT_VIOLATIONDATA_RACE (46 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err9ASSERT_VIOLATIONDATA_RACE (45 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err10ASSERT_VIOLATIONDATA_RACE (44 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONDATA_RACE (43 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONDATA_RACE (42 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONDATA_RACE (41 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONDATA_RACE (40 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4ASSERT_VIOLATIONDATA_RACE (39 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5ASSERT_VIOLATIONDATA_RACE (38 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err6ASSERT_VIOLATIONDATA_RACE (37 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err7ASSERT_VIOLATIONDATA_RACE (36 of 123 remaining) [2023-08-25 05:47:14,528 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err8ASSERT_VIOLATIONDATA_RACE (35 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err9ASSERT_VIOLATIONDATA_RACE (34 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err10ASSERT_VIOLATIONDATA_RACE (33 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONDATA_RACE (32 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONDATA_RACE (31 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONDATA_RACE (30 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONDATA_RACE (29 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err4ASSERT_VIOLATIONDATA_RACE (28 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err6ASSERT_VIOLATIONDATA_RACE (26 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err7ASSERT_VIOLATIONDATA_RACE (25 of 123 remaining) [2023-08-25 05:47:14,529 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err8ASSERT_VIOLATIONDATA_RACE (24 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err9ASSERT_VIOLATIONDATA_RACE (23 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err10ASSERT_VIOLATIONDATA_RACE (22 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONDATA_RACE (21 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONDATA_RACE (20 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONDATA_RACE (19 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONDATA_RACE (18 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err4ASSERT_VIOLATIONDATA_RACE (17 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err5ASSERT_VIOLATIONDATA_RACE (16 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err6ASSERT_VIOLATIONDATA_RACE (15 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err7ASSERT_VIOLATIONDATA_RACE (14 of 123 remaining) [2023-08-25 05:47:14,530 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err8ASSERT_VIOLATIONDATA_RACE (13 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err9ASSERT_VIOLATIONDATA_RACE (12 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err10ASSERT_VIOLATIONDATA_RACE (11 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err0ASSERT_VIOLATIONDATA_RACE (10 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err1ASSERT_VIOLATIONDATA_RACE (9 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err2ASSERT_VIOLATIONDATA_RACE (8 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err3ASSERT_VIOLATIONDATA_RACE (7 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err4ASSERT_VIOLATIONDATA_RACE (6 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err5ASSERT_VIOLATIONDATA_RACE (5 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err6ASSERT_VIOLATIONDATA_RACE (4 of 123 remaining) [2023-08-25 05:47:14,531 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err7ASSERT_VIOLATIONDATA_RACE (3 of 123 remaining) [2023-08-25 05:47:14,532 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err8ASSERT_VIOLATIONDATA_RACE (2 of 123 remaining) [2023-08-25 05:47:14,532 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err9ASSERT_VIOLATIONDATA_RACE (1 of 123 remaining) [2023-08-25 05:47:14,532 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location thread4Err10ASSERT_VIOLATIONDATA_RACE (0 of 123 remaining) [2023-08-25 05:47:14,532 INFO L445 BasicCegarLoop]: Path program histogram: [6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:47:14,542 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:47:14,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:47:14,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:47:14 BasicIcfg [2023-08-25 05:47:14,545 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:47:14,546 INFO L158 Benchmark]: Toolchain (without parser) took 726481.57ms. Allocated memory was 356.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 332.5MB in the beginning and 8.5GB in the end (delta: -8.1GB). Peak memory consumption was 9.6GB. Max. memory is 16.0GB. [2023-08-25 05:47:14,546 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 356.5MB. Free memory is still 332.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:47:14,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.15ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 318.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 05:47:14,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.34ms. Allocated memory is still 356.5MB. Free memory was 318.6MB in the beginning and 314.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 05:47:14,546 INFO L158 Benchmark]: Boogie Preprocessor took 54.12ms. Allocated memory is still 356.5MB. Free memory was 314.9MB in the beginning and 311.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:47:14,547 INFO L158 Benchmark]: RCFGBuilder took 1205.92ms. Allocated memory was 356.5MB in the beginning and 469.8MB in the end (delta: 113.2MB). Free memory was 311.3MB in the beginning and 441.7MB in the end (delta: -130.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.0GB. [2023-08-25 05:47:14,547 INFO L158 Benchmark]: TraceAbstraction took 724919.32ms. Allocated memory was 469.8MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 440.6MB in the beginning and 8.5GB in the end (delta: -8.0GB). Peak memory consumption was 9.6GB. Max. memory is 16.0GB. [2023-08-25 05:47:14,548 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 356.5MB. Free memory is still 332.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 239.15ms. Allocated memory is still 356.5MB. Free memory was 332.5MB in the beginning and 318.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 58.34ms. Allocated memory is still 356.5MB. Free memory was 318.6MB in the beginning and 314.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 54.12ms. Allocated memory is still 356.5MB. Free memory was 314.9MB in the beginning and 311.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 1205.92ms. Allocated memory was 356.5MB in the beginning and 469.8MB in the end (delta: 113.2MB). Free memory was 311.3MB in the beginning and 441.7MB in the end (delta: -130.3MB). Peak memory consumption was 59.3MB. Max. memory is 16.0GB. * TraceAbstraction took 724919.32ms. Allocated memory was 469.8MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 440.6MB in the beginning and 8.5GB in the end (delta: -8.0GB). Peak memory consumption was 9.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 380 PlacesBefore, 129 PlacesAfterwards, 387 TransitionsBefore, 121 TransitionsAfterwards, 10584 CoEnabledTransitionPairs, 10 FixpointIterations, 304 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 15 ConcurrentYvCompositions, 15 ChoiceCompositions, 475 TotalNumberOfCompositions, 44793 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16747, independent: 16062, independent conditional: 0, independent unconditional: 16062, dependent: 685, dependent conditional: 0, dependent unconditional: 685, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4922, independent: 4830, independent conditional: 0, independent unconditional: 4830, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 16747, independent: 11232, independent conditional: 0, independent unconditional: 11232, dependent: 593, dependent conditional: 0, dependent unconditional: 593, unknown: 4922, unknown conditional: 0, unknown unconditional: 4922] , Statistics on independence cache: Total cache size (in pairs): 715, Positive cache size: 681, Positive conditional cache size: 0, Positive unconditional cache size: 681, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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 Executor. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 51]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 55]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 111]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 112]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 120]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 147]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 131]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 133]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 135]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - TimeoutResultAtElement [Line: 100]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 469 locations, 123 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: 724.8s, OverallIterations: 27, TraceHistogramMax: 2, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 672.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 239 mSolverCounterUnknown, 13283 SdHoareTripleChecker+Valid, 21.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13283 mSDsluCounter, 4170 SdHoareTripleChecker+Invalid, 18.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3838 mSDsCounter, 588 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28147 IncrementalHoareTripleChecker+Invalid, 28974 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 588 mSolverCounterUnsat, 332 mSDtfsCounter, 28147 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2108 GetRequests, 1389 SyntacticMatches, 2 SemanticMatches, 717 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6136 ImplicationChecksByTransitivity, 15.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27042occurred in iteration=26, InterpolantAutomatonStates: 470, 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: 0.6s SsaConstructionTime, 6.1s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 1882 NumberOfCodeBlocks, 1882 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 2609 ConstructedInterpolants, 8 QuantifiedInterpolants, 29200 SizeOfPredicates, 376 NumberOfNonLiveVariables, 10022 ConjunctsInSsa, 835 ConjunctsInUnsatCore, 64 InterpolantComputations, 9 PerfectInterpolantSequences, 89/271 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