/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:57:12,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:57:12,139 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 17:57:12,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:57:12,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:57:12,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:57:12,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:57:12,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:57:12,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:57:12,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:57:12,182 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:57:12,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:57:12,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:57:12,184 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:57:12,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:57:12,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:57:12,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:57:12,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:57:12,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:57:12,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:57:12,185 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:57:12,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:57:12,186 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:57:12,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:57:12,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:57:12,187 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:57:12,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:57:12,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:12,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:57:12,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:57:12,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:57:12,189 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:57:12,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:57:12,190 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:57:12,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:57:12,190 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:57:12,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:57:12,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:57:12,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:57:12,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:57:12,546 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:57:12,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-25 17:57:13,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:57:13,926 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:57:13,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-25 17:57:13,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882902f47/90256aebb3ce4b8ca1b337f19256322c/FLAG09134a9c0 [2023-08-25 17:57:13,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/882902f47/90256aebb3ce4b8ca1b337f19256322c [2023-08-25 17:57:13,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:57:13,963 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:57:13,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:13,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:57:13,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:57:13,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:13" (1/1) ... [2023-08-25 17:57:13,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63240da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:13, skipping insertion in model container [2023-08-25 17:57:13,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:13" (1/1) ... [2023-08-25 17:57:14,020 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:57:14,273 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:14,295 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:57:14,322 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:57:14,324 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:57:14,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:14,375 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:57:14,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14 WrapperNode [2023-08-25 17:57:14,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:14,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:14,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:57:14,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:57:14,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,449 INFO L138 Inliner]: procedures = 163, calls = 53, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 134 [2023-08-25 17:57:14,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:14,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:57:14,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:57:14,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:57:14,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,483 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,495 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:57:14,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:57:14,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:57:14,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:57:14,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (1/1) ... [2023-08-25 17:57:14,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:14,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:57:14,527 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 17:57:14,550 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 17:57:14,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:57:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-25 17:57:14,565 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-25 17:57:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:57:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:57:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:57:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:57:14,568 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 17:57:14,716 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:57:14,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:57:15,010 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:57:15,018 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:57:15,018 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:57:15,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:15 BoogieIcfgContainer [2023-08-25 17:57:15,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:57:15,022 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:57:15,022 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:57:15,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:57:15,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:57:13" (1/3) ... [2023-08-25 17:57:15,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdafb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:15, skipping insertion in model container [2023-08-25 17:57:15,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:14" (2/3) ... [2023-08-25 17:57:15,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdafb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:15, skipping insertion in model container [2023-08-25 17:57:15,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:15" (3/3) ... [2023-08-25 17:57:15,027 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-08-25 17:57:15,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:57:15,041 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-25 17:57:15,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:57:15,172 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 17:57:15,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 219 transitions, 454 flow [2023-08-25 17:57:15,281 INFO L124 PetriNetUnfolderBase]: 8/217 cut-off events. [2023-08-25 17:57:15,281 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 17:57:15,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 217 events. 8/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 330 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 17:57:15,289 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 219 transitions, 454 flow [2023-08-25 17:57:15,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 208 transitions, 425 flow [2023-08-25 17:57:15,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:57:15,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 208 transitions, 425 flow [2023-08-25 17:57:15,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 208 transitions, 425 flow [2023-08-25 17:57:15,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 208 transitions, 425 flow [2023-08-25 17:57:15,382 INFO L124 PetriNetUnfolderBase]: 8/208 cut-off events. [2023-08-25 17:57:15,383 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:57:15,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 208 events. 8/208 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 330 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-25 17:57:15,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 15164 [2023-08-25 17:57:19,534 INFO L134 LiptonReduction]: Checked pairs total: 62282 [2023-08-25 17:57:19,534 INFO L136 LiptonReduction]: Total number of compositions: 161 [2023-08-25 17:57:19,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:57:19,552 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;@203c5c79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:57:19,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-25 17:57:19,555 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:57:19,555 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-25 17:57:19,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:19,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:19,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 17:57:19,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:19,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash 143926486, now seen corresponding path program 1 times [2023-08-25 17:57:19,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:19,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171498677] [2023-08-25 17:57:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:19,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:19,799 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 17:57:19,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:19,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171498677] [2023-08-25 17:57:19,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171498677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:19,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:19,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131377754] [2023-08-25 17:57:19,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:19,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:19,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:19,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:19,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:19,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 380 [2023-08-25 17:57:19,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 89 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:19,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:19,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 380 [2023-08-25 17:57:19,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:21,889 INFO L124 PetriNetUnfolderBase]: 13774/23903 cut-off events. [2023-08-25 17:57:21,889 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 17:57:21,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45484 conditions, 23903 events. 13774/23903 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 186813 event pairs, 4158 based on Foata normal form. 576/21120 useless extension candidates. Maximal degree in co-relation 45266. Up to 12996 conditions per place. [2023-08-25 17:57:22,130 INFO L140 encePairwiseOnDemand]: 359/380 looper letters, 99 selfloop transitions, 10 changer transitions 0/128 dead transitions. [2023-08-25 17:57:22,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 128 transitions, 489 flow [2023-08-25 17:57:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2023-08-25 17:57:22,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5894736842105263 [2023-08-25 17:57:22,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2023-08-25 17:57:22,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2023-08-25 17:57:22,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:22,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2023-08-25 17:57:22,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:22,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:22,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:22,163 INFO L175 Difference]: Start difference. First operand has 92 places, 89 transitions, 187 flow. Second operand 3 states and 672 transitions. [2023-08-25 17:57:22,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 128 transitions, 489 flow [2023-08-25 17:57:22,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 128 transitions, 481 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 17:57:22,179 INFO L231 Difference]: Finished difference. Result has 86 places, 86 transitions, 238 flow [2023-08-25 17:57:22,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=86, PETRI_TRANSITIONS=86} [2023-08-25 17:57:22,183 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -6 predicate places. [2023-08-25 17:57:22,184 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 86 transitions, 238 flow [2023-08-25 17:57:22,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:22,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:22,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:22,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:57:22,185 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:22,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2128377194, now seen corresponding path program 1 times [2023-08-25 17:57:22,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:22,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680280277] [2023-08-25 17:57:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:22,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:22,298 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 17:57:22,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:22,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680280277] [2023-08-25 17:57:22,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680280277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:22,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:22,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:22,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347047108] [2023-08-25 17:57:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:22,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:22,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:22,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:22,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:22,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 380 [2023-08-25 17:57:22,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:22,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:22,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 380 [2023-08-25 17:57:22,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:24,558 INFO L124 PetriNetUnfolderBase]: 19169/32625 cut-off events. [2023-08-25 17:57:24,558 INFO L125 PetriNetUnfolderBase]: For 7780/7790 co-relation queries the response was YES. [2023-08-25 17:57:24,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69160 conditions, 32625 events. 19169/32625 cut-off events. For 7780/7790 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 258098 event pairs, 7963 based on Foata normal form. 0/28062 useless extension candidates. Maximal degree in co-relation 61236. Up to 15990 conditions per place. [2023-08-25 17:57:24,855 INFO L140 encePairwiseOnDemand]: 371/380 looper letters, 103 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2023-08-25 17:57:24,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 133 transitions, 577 flow [2023-08-25 17:57:24,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:24,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:24,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2023-08-25 17:57:24,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2023-08-25 17:57:24,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2023-08-25 17:57:24,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2023-08-25 17:57:24,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:24,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2023-08-25 17:57:24,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:24,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:24,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:24,865 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 238 flow. Second operand 3 states and 670 transitions. [2023-08-25 17:57:24,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 133 transitions, 577 flow [2023-08-25 17:57:24,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 133 transitions, 547 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:24,919 INFO L231 Difference]: Finished difference. Result has 86 places, 88 transitions, 256 flow [2023-08-25 17:57:24,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=86, PETRI_TRANSITIONS=88} [2023-08-25 17:57:24,920 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -6 predicate places. [2023-08-25 17:57:24,920 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 88 transitions, 256 flow [2023-08-25 17:57:24,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:24,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:24,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:24,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:57:24,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:24,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1338854410, now seen corresponding path program 1 times [2023-08-25 17:57:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:24,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628769042] [2023-08-25 17:57:24,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:24,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:24,995 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 17:57:24,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:24,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628769042] [2023-08-25 17:57:24,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628769042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:24,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:24,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:24,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100742679] [2023-08-25 17:57:24,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:24,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:24,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:24,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 380 [2023-08-25 17:57:25,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:25,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:25,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 380 [2023-08-25 17:57:25,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:26,748 INFO L124 PetriNetUnfolderBase]: 17653/30872 cut-off events. [2023-08-25 17:57:26,748 INFO L125 PetriNetUnfolderBase]: For 4858/4858 co-relation queries the response was YES. [2023-08-25 17:57:26,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66083 conditions, 30872 events. 17653/30872 cut-off events. For 4858/4858 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 248417 event pairs, 12664 based on Foata normal form. 0/27000 useless extension candidates. Maximal degree in co-relation 60249. Up to 23406 conditions per place. [2023-08-25 17:57:27,026 INFO L140 encePairwiseOnDemand]: 373/380 looper letters, 109 selfloop transitions, 8 changer transitions 0/137 dead transitions. [2023-08-25 17:57:27,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 137 transitions, 624 flow [2023-08-25 17:57:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:27,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-08-25 17:57:27,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5640350877192982 [2023-08-25 17:57:27,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-08-25 17:57:27,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-08-25 17:57:27,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:27,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-08-25 17:57:27,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:27,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:27,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:27,033 INFO L175 Difference]: Start difference. First operand has 86 places, 88 transitions, 256 flow. Second operand 3 states and 643 transitions. [2023-08-25 17:57:27,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 137 transitions, 624 flow [2023-08-25 17:57:27,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 137 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:27,044 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 316 flow [2023-08-25 17:57:27,045 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2023-08-25 17:57:27,046 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -4 predicate places. [2023-08-25 17:57:27,049 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 316 flow [2023-08-25 17:57:27,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:27,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:27,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:27,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:57:27,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:27,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:27,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1490289753, now seen corresponding path program 1 times [2023-08-25 17:57:27,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:27,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723115690] [2023-08-25 17:57:27,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:27,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:27,130 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 17:57:27,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:27,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723115690] [2023-08-25 17:57:27,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723115690] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:27,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:27,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:27,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885360891] [2023-08-25 17:57:27,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:27,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:27,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:27,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:27,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:27,133 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 380 [2023-08-25 17:57:27,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:27,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:27,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 380 [2023-08-25 17:57:27,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:28,526 INFO L124 PetriNetUnfolderBase]: 14680/26033 cut-off events. [2023-08-25 17:57:28,527 INFO L125 PetriNetUnfolderBase]: For 6630/7050 co-relation queries the response was YES. [2023-08-25 17:57:28,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58221 conditions, 26033 events. 14680/26033 cut-off events. For 6630/7050 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 216553 event pairs, 3677 based on Foata normal form. 56/23380 useless extension candidates. Maximal degree in co-relation 53310. Up to 19599 conditions per place. [2023-08-25 17:57:28,658 INFO L140 encePairwiseOnDemand]: 375/380 looper letters, 88 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2023-08-25 17:57:28,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 127 transitions, 572 flow [2023-08-25 17:57:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2023-08-25 17:57:28,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5868421052631579 [2023-08-25 17:57:28,661 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2023-08-25 17:57:28,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2023-08-25 17:57:28,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:28,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2023-08-25 17:57:28,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:28,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:28,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:28,666 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 316 flow. Second operand 3 states and 669 transitions. [2023-08-25 17:57:28,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 127 transitions, 572 flow [2023-08-25 17:57:28,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 127 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:28,712 INFO L231 Difference]: Finished difference. Result has 89 places, 95 transitions, 312 flow [2023-08-25 17:57:28,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=89, PETRI_TRANSITIONS=95} [2023-08-25 17:57:28,714 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -3 predicate places. [2023-08-25 17:57:28,714 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 95 transitions, 312 flow [2023-08-25 17:57:28,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:28,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:28,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:28,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:57:28,715 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:28,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:28,715 INFO L85 PathProgramCache]: Analyzing trace with hash 121176288, now seen corresponding path program 1 times [2023-08-25 17:57:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:28,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080841480] [2023-08-25 17:57:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:28,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:28,778 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 17:57:28,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080841480] [2023-08-25 17:57:28,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080841480] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:28,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:28,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:28,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932066611] [2023-08-25 17:57:28,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:28,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:28,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:28,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:28,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:28,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 380 [2023-08-25 17:57:28,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 95 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:28,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:28,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 380 [2023-08-25 17:57:28,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:30,932 INFO L124 PetriNetUnfolderBase]: 20125/34223 cut-off events. [2023-08-25 17:57:30,932 INFO L125 PetriNetUnfolderBase]: For 11404/11867 co-relation queries the response was YES. [2023-08-25 17:57:30,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79066 conditions, 34223 events. 20125/34223 cut-off events. For 11404/11867 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 266905 event pairs, 14534 based on Foata normal form. 0/31334 useless extension candidates. Maximal degree in co-relation 72002. Up to 29018 conditions per place. [2023-08-25 17:57:31,083 INFO L140 encePairwiseOnDemand]: 376/380 looper letters, 108 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2023-08-25 17:57:31,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 139 transitions, 667 flow [2023-08-25 17:57:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:31,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2023-08-25 17:57:31,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5736842105263158 [2023-08-25 17:57:31,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 654 transitions. [2023-08-25 17:57:31,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 654 transitions. [2023-08-25 17:57:31,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:31,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 654 transitions. [2023-08-25 17:57:31,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:31,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:31,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:31,091 INFO L175 Difference]: Start difference. First operand has 89 places, 95 transitions, 312 flow. Second operand 3 states and 654 transitions. [2023-08-25 17:57:31,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 139 transitions, 667 flow [2023-08-25 17:57:31,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 139 transitions, 663 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:31,096 INFO L231 Difference]: Finished difference. Result has 90 places, 97 transitions, 329 flow [2023-08-25 17:57:31,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=90, PETRI_TRANSITIONS=97} [2023-08-25 17:57:31,097 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2023-08-25 17:57:31,097 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 97 transitions, 329 flow [2023-08-25 17:57:31,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:31,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:31,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:31,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:57:31,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:31,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:31,099 INFO L85 PathProgramCache]: Analyzing trace with hash -480324140, now seen corresponding path program 1 times [2023-08-25 17:57:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724567091] [2023-08-25 17:57:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:31,209 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 17:57:31,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:31,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724567091] [2023-08-25 17:57:31,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724567091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:31,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:31,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605186328] [2023-08-25 17:57:31,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:31,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 17:57:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 17:57:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 17:57:31,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 380 [2023-08-25 17:57:31,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 329 flow. Second operand has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:31,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:31,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 380 [2023-08-25 17:57:31,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:32,315 INFO L124 PetriNetUnfolderBase]: 9090/16667 cut-off events. [2023-08-25 17:57:32,315 INFO L125 PetriNetUnfolderBase]: For 4372/5165 co-relation queries the response was YES. [2023-08-25 17:57:32,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38422 conditions, 16667 events. 9090/16667 cut-off events. For 4372/5165 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 130131 event pairs, 2360 based on Foata normal form. 689/16771 useless extension candidates. Maximal degree in co-relation 35801. Up to 9889 conditions per place. [2023-08-25 17:57:32,515 INFO L140 encePairwiseOnDemand]: 373/380 looper letters, 113 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2023-08-25 17:57:32,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 153 transitions, 724 flow [2023-08-25 17:57:32,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:32,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 776 transitions. [2023-08-25 17:57:32,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5105263157894737 [2023-08-25 17:57:32,517 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 776 transitions. [2023-08-25 17:57:32,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 776 transitions. [2023-08-25 17:57:32,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:32,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 776 transitions. [2023-08-25 17:57:32,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 194.0) internal successors, (776), 4 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:32,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:32,524 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:32,524 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 329 flow. Second operand 4 states and 776 transitions. [2023-08-25 17:57:32,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 153 transitions, 724 flow [2023-08-25 17:57:32,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 153 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:32,528 INFO L231 Difference]: Finished difference. Result has 93 places, 101 transitions, 362 flow [2023-08-25 17:57:32,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=93, PETRI_TRANSITIONS=101} [2023-08-25 17:57:32,529 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 1 predicate places. [2023-08-25 17:57:32,529 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 101 transitions, 362 flow [2023-08-25 17:57:32,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:32,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:32,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:32,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:57:32,530 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:32,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:32,530 INFO L85 PathProgramCache]: Analyzing trace with hash 221061733, now seen corresponding path program 1 times [2023-08-25 17:57:32,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:32,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532863712] [2023-08-25 17:57:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:32,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:32,568 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 17:57:32,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:32,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532863712] [2023-08-25 17:57:32,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532863712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:32,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:32,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:32,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268643682] [2023-08-25 17:57:32,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:32,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:32,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:32,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:32,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:32,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 380 [2023-08-25 17:57:32,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 101 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:32,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:32,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 380 [2023-08-25 17:57:32,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:33,548 INFO L124 PetriNetUnfolderBase]: 8018/14828 cut-off events. [2023-08-25 17:57:33,549 INFO L125 PetriNetUnfolderBase]: For 5635/6108 co-relation queries the response was YES. [2023-08-25 17:57:33,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37636 conditions, 14828 events. 8018/14828 cut-off events. For 5635/6108 co-relation queries the response was YES. Maximal size of possible extension queue 453. Compared 115395 event pairs, 5009 based on Foata normal form. 251/14422 useless extension candidates. Maximal degree in co-relation 31227. Up to 11704 conditions per place. [2023-08-25 17:57:33,601 INFO L140 encePairwiseOnDemand]: 373/380 looper letters, 119 selfloop transitions, 8 changer transitions 2/152 dead transitions. [2023-08-25 17:57:33,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 784 flow [2023-08-25 17:57:33,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:33,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:33,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-08-25 17:57:33,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5640350877192982 [2023-08-25 17:57:33,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-08-25 17:57:33,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-08-25 17:57:33,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:33,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-08-25 17:57:33,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:33,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:33,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:33,607 INFO L175 Difference]: Start difference. First operand has 93 places, 101 transitions, 362 flow. Second operand 3 states and 643 transitions. [2023-08-25 17:57:33,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 784 flow [2023-08-25 17:57:33,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 152 transitions, 783 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:33,612 INFO L231 Difference]: Finished difference. Result has 96 places, 108 transitions, 443 flow [2023-08-25 17:57:33,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=96, PETRI_TRANSITIONS=108} [2023-08-25 17:57:33,612 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 4 predicate places. [2023-08-25 17:57:33,612 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 108 transitions, 443 flow [2023-08-25 17:57:33,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:33,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:33,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:33,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:57:33,613 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:33,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1125487235, now seen corresponding path program 1 times [2023-08-25 17:57:33,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:33,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517771646] [2023-08-25 17:57:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:33,642 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 17:57:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517771646] [2023-08-25 17:57:33,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517771646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:33,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:33,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:33,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030747616] [2023-08-25 17:57:33,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:33,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:33,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:33,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 380 [2023-08-25 17:57:33,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 108 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:33,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:33,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 380 [2023-08-25 17:57:33,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:34,562 INFO L124 PetriNetUnfolderBase]: 8695/16299 cut-off events. [2023-08-25 17:57:34,562 INFO L125 PetriNetUnfolderBase]: For 11682/11936 co-relation queries the response was YES. [2023-08-25 17:57:34,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43990 conditions, 16299 events. 8695/16299 cut-off events. For 11682/11936 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 129652 event pairs, 5650 based on Foata normal form. 0/15463 useless extension candidates. Maximal degree in co-relation 36775. Up to 13389 conditions per place. [2023-08-25 17:57:34,622 INFO L140 encePairwiseOnDemand]: 376/380 looper letters, 112 selfloop transitions, 3 changer transitions 4/153 dead transitions. [2023-08-25 17:57:34,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 153 transitions, 841 flow [2023-08-25 17:57:34,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2023-08-25 17:57:34,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5736842105263158 [2023-08-25 17:57:34,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 654 transitions. [2023-08-25 17:57:34,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 654 transitions. [2023-08-25 17:57:34,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:34,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 654 transitions. [2023-08-25 17:57:34,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:34,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:34,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:34,628 INFO L175 Difference]: Start difference. First operand has 96 places, 108 transitions, 443 flow. Second operand 3 states and 654 transitions. [2023-08-25 17:57:34,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 153 transitions, 841 flow [2023-08-25 17:57:34,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 153 transitions, 809 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:34,653 INFO L231 Difference]: Finished difference. Result has 97 places, 110 transitions, 440 flow [2023-08-25 17:57:34,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=97, PETRI_TRANSITIONS=110} [2023-08-25 17:57:34,654 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places. [2023-08-25 17:57:34,654 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 110 transitions, 440 flow [2023-08-25 17:57:34,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:34,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:34,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:34,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:57:34,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:34,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:34,655 INFO L85 PathProgramCache]: Analyzing trace with hash 347017214, now seen corresponding path program 1 times [2023-08-25 17:57:34,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:34,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927261807] [2023-08-25 17:57:34,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:34,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:34,724 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 17:57:34,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:34,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927261807] [2023-08-25 17:57:34,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927261807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:34,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:34,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:34,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406229422] [2023-08-25 17:57:34,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:34,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:34,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:34,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:34,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:34,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 380 [2023-08-25 17:57:34,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 110 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:34,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:34,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 380 [2023-08-25 17:57:34,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:35,587 INFO L124 PetriNetUnfolderBase]: 6922/13869 cut-off events. [2023-08-25 17:57:35,588 INFO L125 PetriNetUnfolderBase]: For 8182/8815 co-relation queries the response was YES. [2023-08-25 17:57:35,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36261 conditions, 13869 events. 6922/13869 cut-off events. For 8182/8815 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 116481 event pairs, 2374 based on Foata normal form. 34/13473 useless extension candidates. Maximal degree in co-relation 30038. Up to 8910 conditions per place. [2023-08-25 17:57:35,652 INFO L140 encePairwiseOnDemand]: 376/380 looper letters, 97 selfloop transitions, 2 changer transitions 3/149 dead transitions. [2023-08-25 17:57:35,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 149 transitions, 778 flow [2023-08-25 17:57:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:35,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2023-08-25 17:57:35,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5912280701754385 [2023-08-25 17:57:35,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2023-08-25 17:57:35,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2023-08-25 17:57:35,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:35,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2023-08-25 17:57:35,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:35,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:35,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:35,659 INFO L175 Difference]: Start difference. First operand has 97 places, 110 transitions, 440 flow. Second operand 3 states and 674 transitions. [2023-08-25 17:57:35,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 149 transitions, 778 flow [2023-08-25 17:57:35,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 149 transitions, 773 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:35,706 INFO L231 Difference]: Finished difference. Result has 99 places, 110 transitions, 445 flow [2023-08-25 17:57:35,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=99, PETRI_TRANSITIONS=110} [2023-08-25 17:57:35,707 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 7 predicate places. [2023-08-25 17:57:35,707 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 110 transitions, 445 flow [2023-08-25 17:57:35,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:35,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:35,707 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:35,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:57:35,708 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:35,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:35,708 INFO L85 PathProgramCache]: Analyzing trace with hash 786707229, now seen corresponding path program 1 times [2023-08-25 17:57:35,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:35,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476282410] [2023-08-25 17:57:35,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:35,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:35,886 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 17:57:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:35,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476282410] [2023-08-25 17:57:35,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476282410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:35,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:35,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:35,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363539319] [2023-08-25 17:57:35,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:35,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:35,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:35,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 380 [2023-08-25 17:57:35,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 110 transitions, 445 flow. Second operand has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:35,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:35,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 380 [2023-08-25 17:57:35,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:37,028 INFO L124 PetriNetUnfolderBase]: 7029/13665 cut-off events. [2023-08-25 17:57:37,028 INFO L125 PetriNetUnfolderBase]: For 6835/8030 co-relation queries the response was YES. [2023-08-25 17:57:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35852 conditions, 13665 events. 7029/13665 cut-off events. For 6835/8030 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 113253 event pairs, 1889 based on Foata normal form. 920/14329 useless extension candidates. Maximal degree in co-relation 29826. Up to 4837 conditions per place. [2023-08-25 17:57:37,082 INFO L140 encePairwiseOnDemand]: 370/380 looper letters, 229 selfloop transitions, 9 changer transitions 6/289 dead transitions. [2023-08-25 17:57:37,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 289 transitions, 1472 flow [2023-08-25 17:57:37,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 17:57:37,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 17:57:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1757 transitions. [2023-08-25 17:57:37,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5779605263157894 [2023-08-25 17:57:37,087 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1757 transitions. [2023-08-25 17:57:37,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1757 transitions. [2023-08-25 17:57:37,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:37,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1757 transitions. [2023-08-25 17:57:37,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 219.625) internal successors, (1757), 8 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:37,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:37,095 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:37,095 INFO L175 Difference]: Start difference. First operand has 99 places, 110 transitions, 445 flow. Second operand 8 states and 1757 transitions. [2023-08-25 17:57:37,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 289 transitions, 1472 flow [2023-08-25 17:57:37,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 289 transitions, 1458 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:37,105 INFO L231 Difference]: Finished difference. Result has 106 places, 110 transitions, 478 flow [2023-08-25 17:57:37,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=478, PETRI_PLACES=106, PETRI_TRANSITIONS=110} [2023-08-25 17:57:37,105 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 14 predicate places. [2023-08-25 17:57:37,106 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 110 transitions, 478 flow [2023-08-25 17:57:37,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.5) internal successors, (1179), 6 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:37,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:37,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:37,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:57:37,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:37,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:37,107 INFO L85 PathProgramCache]: Analyzing trace with hash -983788929, now seen corresponding path program 1 times [2023-08-25 17:57:37,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:37,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16380099] [2023-08-25 17:57:37,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:37,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:37,190 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 17:57:37,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:37,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16380099] [2023-08-25 17:57:37,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16380099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:37,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:37,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:37,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218692712] [2023-08-25 17:57:37,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:37,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:37,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:37,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:37,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:37,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 380 [2023-08-25 17:57:37,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 110 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:37,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:37,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 380 [2023-08-25 17:57:37,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:38,144 INFO L124 PetriNetUnfolderBase]: 5780/12144 cut-off events. [2023-08-25 17:57:38,144 INFO L125 PetriNetUnfolderBase]: For 8631/9114 co-relation queries the response was YES. [2023-08-25 17:57:38,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34599 conditions, 12144 events. 5780/12144 cut-off events. For 8631/9114 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 101680 event pairs, 1670 based on Foata normal form. 1313/13281 useless extension candidates. Maximal degree in co-relation 26179. Up to 5651 conditions per place. [2023-08-25 17:57:38,199 INFO L140 encePairwiseOnDemand]: 360/380 looper letters, 102 selfloop transitions, 25 changer transitions 3/168 dead transitions. [2023-08-25 17:57:38,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 168 transitions, 971 flow [2023-08-25 17:57:38,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:38,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:38,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2023-08-25 17:57:38,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5517543859649123 [2023-08-25 17:57:38,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2023-08-25 17:57:38,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2023-08-25 17:57:38,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:38,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2023-08-25 17:57:38,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:38,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:38,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:38,205 INFO L175 Difference]: Start difference. First operand has 106 places, 110 transitions, 478 flow. Second operand 3 states and 629 transitions. [2023-08-25 17:57:38,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 168 transitions, 971 flow [2023-08-25 17:57:38,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 168 transitions, 941 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 17:57:38,228 INFO L231 Difference]: Finished difference. Result has 102 places, 127 transitions, 629 flow [2023-08-25 17:57:38,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=629, PETRI_PLACES=102, PETRI_TRANSITIONS=127} [2023-08-25 17:57:38,229 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 10 predicate places. [2023-08-25 17:57:38,229 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 127 transitions, 629 flow [2023-08-25 17:57:38,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:38,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:38,230 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 17:57:38,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:57:38,230 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:38,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1293301263, now seen corresponding path program 1 times [2023-08-25 17:57:38,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:38,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950864794] [2023-08-25 17:57:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:38,447 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 17:57:38,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:38,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950864794] [2023-08-25 17:57:38,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950864794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:38,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:38,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:57:38,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815866913] [2023-08-25 17:57:38,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:38,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:38,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:38,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:38,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 380 [2023-08-25 17:57:38,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 127 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:38,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:38,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 380 [2023-08-25 17:57:38,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:39,118 INFO L124 PetriNetUnfolderBase]: 3134/6942 cut-off events. [2023-08-25 17:57:39,118 INFO L125 PetriNetUnfolderBase]: For 6091/6296 co-relation queries the response was YES. [2023-08-25 17:57:39,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22257 conditions, 6942 events. 3134/6942 cut-off events. For 6091/6296 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 53442 event pairs, 1138 based on Foata normal form. 176/7011 useless extension candidates. Maximal degree in co-relation 17338. Up to 4193 conditions per place. [2023-08-25 17:57:39,141 INFO L140 encePairwiseOnDemand]: 375/380 looper letters, 104 selfloop transitions, 10 changer transitions 18/162 dead transitions. [2023-08-25 17:57:39,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 162 transitions, 1085 flow [2023-08-25 17:57:39,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 729 transitions. [2023-08-25 17:57:39,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47960526315789476 [2023-08-25 17:57:39,144 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 729 transitions. [2023-08-25 17:57:39,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 729 transitions. [2023-08-25 17:57:39,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:39,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 729 transitions. [2023-08-25 17:57:39,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 182.25) internal successors, (729), 4 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,148 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,149 INFO L175 Difference]: Start difference. First operand has 102 places, 127 transitions, 629 flow. Second operand 4 states and 729 transitions. [2023-08-25 17:57:39,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 162 transitions, 1085 flow [2023-08-25 17:57:39,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 162 transitions, 1032 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-25 17:57:39,164 INFO L231 Difference]: Finished difference. Result has 97 places, 111 transitions, 538 flow [2023-08-25 17:57:39,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=538, PETRI_PLACES=97, PETRI_TRANSITIONS=111} [2023-08-25 17:57:39,165 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 5 predicate places. [2023-08-25 17:57:39,165 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 111 transitions, 538 flow [2023-08-25 17:57:39,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:39,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:39,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:57:39,166 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:39,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1646111289, now seen corresponding path program 1 times [2023-08-25 17:57:39,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:39,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568508045] [2023-08-25 17:57:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:39,397 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 17:57:39,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:39,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568508045] [2023-08-25 17:57:39,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568508045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:39,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:39,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:39,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317910170] [2023-08-25 17:57:39,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:39,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:57:39,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:57:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:57:39,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 380 [2023-08-25 17:57:39,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 111 transitions, 538 flow. Second operand has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:39,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 380 [2023-08-25 17:57:39,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:39,633 INFO L124 PetriNetUnfolderBase]: 487/1512 cut-off events. [2023-08-25 17:57:39,634 INFO L125 PetriNetUnfolderBase]: For 1141/1141 co-relation queries the response was YES. [2023-08-25 17:57:39,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4432 conditions, 1512 events. 487/1512 cut-off events. For 1141/1141 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8904 event pairs, 121 based on Foata normal form. 84/1589 useless extension candidates. Maximal degree in co-relation 3727. Up to 1073 conditions per place. [2023-08-25 17:57:39,639 INFO L140 encePairwiseOnDemand]: 375/380 looper letters, 61 selfloop transitions, 6 changer transitions 18/95 dead transitions. [2023-08-25 17:57:39,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 571 flow [2023-08-25 17:57:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 713 transitions. [2023-08-25 17:57:39,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46907894736842104 [2023-08-25 17:57:39,642 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 713 transitions. [2023-08-25 17:57:39,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 713 transitions. [2023-08-25 17:57:39,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:39,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 713 transitions. [2023-08-25 17:57:39,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.25) internal successors, (713), 4 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,646 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,646 INFO L175 Difference]: Start difference. First operand has 97 places, 111 transitions, 538 flow. Second operand 4 states and 713 transitions. [2023-08-25 17:57:39,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 571 flow [2023-08-25 17:57:39,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 95 transitions, 513 flow, removed 14 selfloop flow, removed 9 redundant places. [2023-08-25 17:57:39,651 INFO L231 Difference]: Finished difference. Result has 81 places, 61 transitions, 238 flow [2023-08-25 17:57:39,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=81, PETRI_TRANSITIONS=61} [2023-08-25 17:57:39,652 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -11 predicate places. [2023-08-25 17:57:39,652 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 61 transitions, 238 flow [2023-08-25 17:57:39,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.0) internal successors, (830), 5 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:39,653 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] [2023-08-25 17:57:39,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 17:57:39,653 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-08-25 17:57:39,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:39,653 INFO L85 PathProgramCache]: Analyzing trace with hash 765315098, now seen corresponding path program 1 times [2023-08-25 17:57:39,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:39,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182472947] [2023-08-25 17:57:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:39,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:39,831 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 17:57:39,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:39,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182472947] [2023-08-25 17:57:39,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182472947] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:39,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:39,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:39,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136695261] [2023-08-25 17:57:39,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:39,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:57:39,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:57:39,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:57:39,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 380 [2023-08-25 17:57:39,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 61 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:39,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:39,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 380 [2023-08-25 17:57:39,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:40,042 INFO L124 PetriNetUnfolderBase]: 153/608 cut-off events. [2023-08-25 17:57:40,042 INFO L125 PetriNetUnfolderBase]: For 449/450 co-relation queries the response was YES. [2023-08-25 17:57:40,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1647 conditions, 608 events. 153/608 cut-off events. For 449/450 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3064 event pairs, 84 based on Foata normal form. 5/611 useless extension candidates. Maximal degree in co-relation 711. Up to 305 conditions per place. [2023-08-25 17:57:40,043 INFO L140 encePairwiseOnDemand]: 372/380 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2023-08-25 17:57:40,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 102 transitions, 614 flow [2023-08-25 17:57:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 17:57:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 17:57:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1637 transitions. [2023-08-25 17:57:40,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384868421052632 [2023-08-25 17:57:40,047 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1637 transitions. [2023-08-25 17:57:40,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1637 transitions. [2023-08-25 17:57:40,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:40,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1637 transitions. [2023-08-25 17:57:40,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 204.625) internal successors, (1637), 8 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:40,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:40,055 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 380.0) internal successors, (3420), 9 states have internal predecessors, (3420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:40,055 INFO L175 Difference]: Start difference. First operand has 81 places, 61 transitions, 238 flow. Second operand 8 states and 1637 transitions. [2023-08-25 17:57:40,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 102 transitions, 614 flow [2023-08-25 17:57:40,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 102 transitions, 529 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-25 17:57:40,058 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2023-08-25 17:57:40,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2023-08-25 17:57:40,058 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, -24 predicate places. [2023-08-25 17:57:40,058 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2023-08-25 17:57:40,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:40,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2023-08-25 17:57:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-08-25 17:57:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-08-25 17:57:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-08-25 17:57:40,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-08-25 17:57:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (22 of 28 remaining) [2023-08-25 17:57:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-08-25 17:57:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (20 of 28 remaining) [2023-08-25 17:57:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-08-25 17:57:40,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (18 of 28 remaining) [2023-08-25 17:57:40,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-08-25 17:57:40,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONASSERT (16 of 28 remaining) [2023-08-25 17:57:40,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-08-25 17:57:40,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-08-25 17:57:40,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2023-08-25 17:57:40,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2023-08-25 17:57:40,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-08-25 17:57:40,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-08-25 17:57:40,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2023-08-25 17:57:40,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-08-25 17:57:40,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2023-08-25 17:57:40,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-08-25 17:57:40,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-08-25 17:57:40,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-08-25 17:57:40,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-08-25 17:57:40,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-08-25 17:57:40,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-08-25 17:57:40,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-08-25 17:57:40,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 17:57:40,067 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:40,072 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:57:40,073 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:57:40,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:57:40 BasicIcfg [2023-08-25 17:57:40,075 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:57:40,076 INFO L158 Benchmark]: Toolchain (without parser) took 26112.29ms. Allocated memory was 350.2MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 325.7MB in the beginning and 4.4GB in the end (delta: -4.1GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. [2023-08-25 17:57:40,076 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 350.2MB. Free memory is still 326.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:40,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.15ms. Allocated memory is still 350.2MB. Free memory was 325.2MB in the beginning and 305.1MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:57:40,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.80ms. Allocated memory is still 350.2MB. Free memory was 305.1MB in the beginning and 302.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 17:57:40,077 INFO L158 Benchmark]: Boogie Preprocessor took 50.01ms. Allocated memory is still 350.2MB. Free memory was 302.6MB in the beginning and 300.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:40,077 INFO L158 Benchmark]: RCFGBuilder took 519.10ms. Allocated memory is still 350.2MB. Free memory was 300.5MB in the beginning and 280.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:57:40,077 INFO L158 Benchmark]: TraceAbstraction took 25053.47ms. Allocated memory was 350.2MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 279.1MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. [2023-08-25 17:57:40,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 350.2MB. Free memory is still 326.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 411.15ms. Allocated memory is still 350.2MB. Free memory was 325.2MB in the beginning and 305.1MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.80ms. Allocated memory is still 350.2MB. Free memory was 305.1MB in the beginning and 302.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.01ms. Allocated memory is still 350.2MB. Free memory was 302.6MB in the beginning and 300.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 519.10ms. Allocated memory is still 350.2MB. Free memory was 300.5MB in the beginning and 280.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 25053.47ms. Allocated memory was 350.2MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 279.1MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 207 PlacesBefore, 92 PlacesAfterwards, 208 TransitionsBefore, 89 TransitionsAfterwards, 15164 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 107 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 4 ChoiceCompositions, 161 TotalNumberOfCompositions, 62282 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17709, independent: 16798, independent conditional: 0, independent unconditional: 16798, dependent: 911, dependent conditional: 0, dependent unconditional: 911, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7313, independent: 7192, independent conditional: 0, independent unconditional: 7192, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17709, independent: 9606, independent conditional: 0, independent unconditional: 9606, dependent: 790, dependent conditional: 0, dependent unconditional: 790, unknown: 7313, unknown conditional: 0, unknown unconditional: 7313] , Statistics on independence cache: Total cache size (in pairs): 843, Positive cache size: 768, Positive conditional cache size: 0, Positive unconditional cache size: 768, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 284 locations, 28 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: 24.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 830 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 830 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 118 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2388 IncrementalHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 118 mSolverCounterUnsat, 61 mSDtfsCounter, 2388 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=629occurred in iteration=11, InterpolantAutomatonStates: 55, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 1073 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:57:40,093 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 Received shutdown request...