/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 PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:57:51,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:57:51,264 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 [2023-08-26 08:57:51,268 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:57:51,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:57:51,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:57:51,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:57:51,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:57:51,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:57:51,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:57:51,295 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:57:51,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:57:51,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:57:51,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:57:51,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:57:51,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:57:51,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:57:51,301 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:57:51,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:57:51,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:57:51,302 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:57:51,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:57:51,308 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:57:51,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:57:51,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:57:51,308 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:57:51,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:57:51,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:57:51,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:57:51,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:57:51,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:57:51,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:57:51,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:57:51,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:57:51,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:57:51,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:57:51,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:57:51,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:57:51,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:57:51,634 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:57:51,634 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:57:51,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2023-08-26 08:57:52,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:57:52,958 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:57:52,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2023-08-26 08:57:52,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/287999d43/d09ceee3626b49978f3b36d35aca227c/FLAG5cf1dc045 [2023-08-26 08:57:52,977 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/287999d43/d09ceee3626b49978f3b36d35aca227c [2023-08-26 08:57:52,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:57:52,981 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:57:52,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:57:52,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:57:52,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:57:52,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:57:52" (1/1) ... [2023-08-26 08:57:52,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3f1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:52, skipping insertion in model container [2023-08-26 08:57:52,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:57:52" (1/1) ... [2023-08-26 08:57:53,004 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:57:53,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:57:53,148 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:57:53,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:57:53,181 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:57:53,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53 WrapperNode [2023-08-26 08:57:53,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:57:53,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:57:53,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:57:53,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:57:53,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,225 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 106 [2023-08-26 08:57:53,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:57:53,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:57:53,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:57:53,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:57:53,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,254 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:57:53,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:57:53,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:57:53,278 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:57:53,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (1/1) ... [2023-08-26 08:57:53,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:57:53,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:57:53,318 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) [2023-08-26 08:57:53,351 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 [2023-08-26 08:57:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:57:53,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:57:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:57:53,367 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:57:53,367 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:57:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:57:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:57:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:57:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:57:53,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:57:53,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:57:53,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:57:53,370 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:57:53,484 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:57:53,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:57:53,770 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:57:53,783 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:57:53,783 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 08:57:53,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:57:53 BoogieIcfgContainer [2023-08-26 08:57:53,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:57:53,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:57:53,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:57:53,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:57:53,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:57:52" (1/3) ... [2023-08-26 08:57:53,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496c5f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:57:53, skipping insertion in model container [2023-08-26 08:57:53,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:57:53" (2/3) ... [2023-08-26 08:57:53,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496c5f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:57:53, skipping insertion in model container [2023-08-26 08:57:53,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:57:53" (3/3) ... [2023-08-26 08:57:53,796 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2023-08-26 08:57:53,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:57:53,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-26 08:57:53,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:57:53,899 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 08:57:53,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 168 places, 169 transitions, 354 flow [2023-08-26 08:57:53,989 INFO L124 PetriNetUnfolderBase]: 8/167 cut-off events. [2023-08-26 08:57:53,990 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:57:53,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 8/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 179 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-26 08:57:53,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 168 places, 169 transitions, 354 flow [2023-08-26 08:57:54,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 158 transitions, 328 flow [2023-08-26 08:57:54,004 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:57:54,012 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 158 transitions, 328 flow [2023-08-26 08:57:54,014 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 158 transitions, 328 flow [2023-08-26 08:57:54,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 158 transitions, 328 flow [2023-08-26 08:57:54,055 INFO L124 PetriNetUnfolderBase]: 8/158 cut-off events. [2023-08-26 08:57:54,056 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:57:54,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 158 events. 8/158 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 178 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2023-08-26 08:57:54,066 INFO L119 LiptonReduction]: Number of co-enabled transitions 2420 [2023-08-26 08:57:58,339 INFO L134 LiptonReduction]: Checked pairs total: 8175 [2023-08-26 08:57:58,340 INFO L136 LiptonReduction]: Total number of compositions: 169 [2023-08-26 08:57:58,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:57:58,368 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;@7eae14ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:57:58,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-08-26 08:57:58,369 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:57:58,369 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:57:58,369 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:57:58,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:58,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:57:58,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:58,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2023-08-26 08:57:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:58,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501651234] [2023-08-26 08:57:58,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:58,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:58,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:58,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501651234] [2023-08-26 08:57:58,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501651234] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:58,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:58,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:57:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912930919] [2023-08-26 08:57:58,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:58,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:57:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:58,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:57:58,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:57:58,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 338 [2023-08-26 08:57:58,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 98 flow. Second operand has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:58,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 338 [2023-08-26 08:57:58,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:58,579 INFO L124 PetriNetUnfolderBase]: 65/145 cut-off events. [2023-08-26 08:57:58,579 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-26 08:57:58,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 145 events. 65/145 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 620 event pairs, 45 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 229. Up to 117 conditions per place. [2023-08-26 08:57:58,582 INFO L140 encePairwiseOnDemand]: 327/338 looper letters, 17 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-08-26 08:57:58,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 110 flow [2023-08-26 08:57:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:57:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:57:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 350 transitions. [2023-08-26 08:57:58,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5177514792899408 [2023-08-26 08:57:58,602 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 350 transitions. [2023-08-26 08:57:58,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 350 transitions. [2023-08-26 08:57:58,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:58,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 350 transitions. [2023-08-26 08:57:58,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 175.0) internal successors, (350), 2 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,618 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,620 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 98 flow. Second operand 2 states and 350 transitions. [2023-08-26 08:57:58,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 110 flow [2023-08-26 08:57:58,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 102 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:57:58,625 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 68 flow [2023-08-26 08:57:58,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2023-08-26 08:57:58,631 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-26 08:57:58,631 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 32 transitions, 68 flow [2023-08-26 08:57:58,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 161.5) internal successors, (323), 2 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:58,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-26 08:57:58,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:57:58,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:58,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash 18641755, now seen corresponding path program 1 times [2023-08-26 08:57:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:58,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468911155] [2023-08-26 08:57:58,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:58,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:58,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:58,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468911155] [2023-08-26 08:57:58,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468911155] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:58,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:58,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:58,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098263882] [2023-08-26 08:57:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:58,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:58,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:58,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:58,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:58,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2023-08-26 08:57:58,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:58,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2023-08-26 08:57:58,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:58,805 INFO L124 PetriNetUnfolderBase]: 133/260 cut-off events. [2023-08-26 08:57:58,805 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 08:57:58,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 260 events. 133/260 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1002 event pairs, 50 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 499. Up to 227 conditions per place. [2023-08-26 08:57:58,808 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 2 changer transitions 0/34 dead transitions. [2023-08-26 08:57:58,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 125 flow [2023-08-26 08:57:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-26 08:57:58,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46942800788954636 [2023-08-26 08:57:58,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:58,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,815 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 68 flow. Second operand 3 states and 476 transitions. [2023-08-26 08:57:58,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 125 flow [2023-08-26 08:57:58,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 34 transitions, 125 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:58,816 INFO L231 Difference]: Finished difference. Result has 34 places, 31 transitions, 76 flow [2023-08-26 08:57:58,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=31} [2023-08-26 08:57:58,817 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-26 08:57:58,817 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 31 transitions, 76 flow [2023-08-26 08:57:58,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:58,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:57:58,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:57:58,818 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:58,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:58,819 INFO L85 PathProgramCache]: Analyzing trace with hash 740038142, now seen corresponding path program 1 times [2023-08-26 08:57:58,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:58,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411857847] [2023-08-26 08:57:58,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:58,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:58,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411857847] [2023-08-26 08:57:58,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411857847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:58,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:58,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225826860] [2023-08-26 08:57:58,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:58,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:58,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:58,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:58,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:58,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 338 [2023-08-26 08:57:58,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:58,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 338 [2023-08-26 08:57:58,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:58,914 INFO L124 PetriNetUnfolderBase]: 140/271 cut-off events. [2023-08-26 08:57:58,915 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 08:57:58,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 271 events. 140/271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1080 event pairs, 48 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 533. Up to 238 conditions per place. [2023-08-26 08:57:58,917 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2023-08-26 08:57:58,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 33 transitions, 133 flow [2023-08-26 08:57:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:58,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-26 08:57:58,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46942800788954636 [2023-08-26 08:57:58,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:58,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-26 08:57:58,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,924 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 76 flow. Second operand 3 states and 476 transitions. [2023-08-26 08:57:58,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 33 transitions, 133 flow [2023-08-26 08:57:58,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 133 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:58,925 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 84 flow [2023-08-26 08:57:58,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2023-08-26 08:57:58,926 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -14 predicate places. [2023-08-26 08:57:58,926 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 84 flow [2023-08-26 08:57:58,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:58,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:58,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:57:58,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:58,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:58,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1306146088, now seen corresponding path program 1 times [2023-08-26 08:57:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044455416] [2023-08-26 08:57:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:58,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:58,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:58,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044455416] [2023-08-26 08:57:58,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044455416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:58,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:57:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11871468] [2023-08-26 08:57:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:58,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:58,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:58,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 338 [2023-08-26 08:57:58,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:58,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:58,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 338 [2023-08-26 08:57:58,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:59,026 INFO L124 PetriNetUnfolderBase]: 79/156 cut-off events. [2023-08-26 08:57:59,026 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 08:57:59,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 156 events. 79/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 595 event pairs, 38 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 315. Up to 102 conditions per place. [2023-08-26 08:57:59,028 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 21 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2023-08-26 08:57:59,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 145 flow [2023-08-26 08:57:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-26 08:57:59,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45956607495069035 [2023-08-26 08:57:59,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-26 08:57:59,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-26 08:57:59,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:59,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-26 08:57:59,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,035 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 84 flow. Second operand 3 states and 466 transitions. [2023-08-26 08:57:59,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 145 flow [2023-08-26 08:57:59,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 145 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:59,036 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 88 flow [2023-08-26 08:57:59,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2023-08-26 08:57:59,037 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -13 predicate places. [2023-08-26 08:57:59,037 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 88 flow [2023-08-26 08:57:59,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:59,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:59,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:57:59,038 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:59,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:59,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1258683457, now seen corresponding path program 1 times [2023-08-26 08:57:59,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:59,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73474312] [2023-08-26 08:57:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:59,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:59,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:59,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73474312] [2023-08-26 08:57:59,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73474312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:59,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:59,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:59,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663348722] [2023-08-26 08:57:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:59,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 08:57:59,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:59,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 08:57:59,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 08:57:59,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-26 08:57:59,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 154.25) internal successors, (617), 4 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:59,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-26 08:57:59,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:59,413 INFO L124 PetriNetUnfolderBase]: 123/261 cut-off events. [2023-08-26 08:57:59,413 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-26 08:57:59,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 261 events. 123/261 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1249 event pairs, 51 based on Foata normal form. 1/249 useless extension candidates. Maximal degree in co-relation 587. Up to 115 conditions per place. [2023-08-26 08:57:59,415 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 33 selfloop transitions, 4 changer transitions 1/50 dead transitions. [2023-08-26 08:57:59,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 219 flow [2023-08-26 08:57:59,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 08:57:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 08:57:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 643 transitions. [2023-08-26 08:57:59,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4755917159763314 [2023-08-26 08:57:59,419 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 643 transitions. [2023-08-26 08:57:59,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 643 transitions. [2023-08-26 08:57:59,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:59,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 643 transitions. [2023-08-26 08:57:59,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 160.75) internal successors, (643), 4 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) [2023-08-26 08:57:59,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,424 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,425 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 88 flow. Second operand 4 states and 643 transitions. [2023-08-26 08:57:59,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 219 flow [2023-08-26 08:57:59,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 50 transitions, 205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:57:59,427 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 101 flow [2023-08-26 08:57:59,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2023-08-26 08:57:59,428 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -11 predicate places. [2023-08-26 08:57:59,428 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 101 flow [2023-08-26 08:57:59,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 154.25) internal successors, (617), 4 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:59,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:59,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 08:57:59,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:59,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1368835478, now seen corresponding path program 1 times [2023-08-26 08:57:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:59,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282820986] [2023-08-26 08:57:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:59,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:59,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:59,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282820986] [2023-08-26 08:57:59,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282820986] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:59,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:59,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:59,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725987758] [2023-08-26 08:57:59,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:59,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:59,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:59,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:59,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:59,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-26 08:57:59,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:59,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-26 08:57:59,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:59,593 INFO L124 PetriNetUnfolderBase]: 108/246 cut-off events. [2023-08-26 08:57:59,594 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-26 08:57:59,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 246 events. 108/246 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1103 event pairs, 34 based on Foata normal form. 14/247 useless extension candidates. Maximal degree in co-relation 558. Up to 161 conditions per place. [2023-08-26 08:57:59,595 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 26 selfloop transitions, 2 changer transitions 1/41 dead transitions. [2023-08-26 08:57:59,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 182 flow [2023-08-26 08:57:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2023-08-26 08:57:59,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47534516765285995 [2023-08-26 08:57:59,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:59,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,602 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 101 flow. Second operand 3 states and 482 transitions. [2023-08-26 08:57:59,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 182 flow [2023-08-26 08:57:59,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 41 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:57:59,604 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 118 flow [2023-08-26 08:57:59,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2023-08-26 08:57:59,604 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -8 predicate places. [2023-08-26 08:57:59,605 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 118 flow [2023-08-26 08:57:59,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:59,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:57:59,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 08:57:59,606 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:59,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:59,606 INFO L85 PathProgramCache]: Analyzing trace with hash 272768153, now seen corresponding path program 1 times [2023-08-26 08:57:59,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:59,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845210363] [2023-08-26 08:57:59,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:59,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:57:59,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:59,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845210363] [2023-08-26 08:57:59,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845210363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:59,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:59,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:57:59,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002179771] [2023-08-26 08:57:59,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:59,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:57:59,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:59,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:57:59,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:57:59,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 338 [2023-08-26 08:57:59,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:59,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 338 [2023-08-26 08:57:59,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:57:59,737 INFO L124 PetriNetUnfolderBase]: 82/196 cut-off events. [2023-08-26 08:57:59,737 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2023-08-26 08:57:59,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 196 events. 82/196 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 796 event pairs, 49 based on Foata normal form. 10/194 useless extension candidates. Maximal degree in co-relation 479. Up to 117 conditions per place. [2023-08-26 08:57:59,739 INFO L140 encePairwiseOnDemand]: 334/338 looper letters, 26 selfloop transitions, 2 changer transitions 3/43 dead transitions. [2023-08-26 08:57:59,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 43 transitions, 207 flow [2023-08-26 08:57:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2023-08-26 08:57:59,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47534516765285995 [2023-08-26 08:57:59,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:59,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2023-08-26 08:57:59,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,746 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 118 flow. Second operand 3 states and 482 transitions. [2023-08-26 08:57:59,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 43 transitions, 207 flow [2023-08-26 08:57:59,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 205 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:57:59,749 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 126 flow [2023-08-26 08:57:59,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2023-08-26 08:57:59,749 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-08-26 08:57:59,750 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 126 flow [2023-08-26 08:57:59,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:59,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:59,750 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] [2023-08-26 08:57:59,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:57:59,751 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:57:59,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash 289715036, now seen corresponding path program 1 times [2023-08-26 08:57:59,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:59,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235781876] [2023-08-26 08:57:59,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:59,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:00,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:00,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235781876] [2023-08-26 08:58:00,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235781876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:00,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:00,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:58:00,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553526377] [2023-08-26 08:58:00,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:00,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:58:00,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:00,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:58:00,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:58:00,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-08-26 08:58:00,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:00,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-08-26 08:58:00,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:00,455 INFO L124 PetriNetUnfolderBase]: 72/186 cut-off events. [2023-08-26 08:58:00,455 INFO L125 PetriNetUnfolderBase]: For 110/113 co-relation queries the response was YES. [2023-08-26 08:58:00,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 186 events. 72/186 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 737 event pairs, 12 based on Foata normal form. 1/175 useless extension candidates. Maximal degree in co-relation 469. Up to 62 conditions per place. [2023-08-26 08:58:00,456 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 24 selfloop transitions, 4 changer transitions 11/51 dead transitions. [2023-08-26 08:58:00,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 247 flow [2023-08-26 08:58:00,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:58:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:58:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 744 transitions. [2023-08-26 08:58:00,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44023668639053254 [2023-08-26 08:58:00,459 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 744 transitions. [2023-08-26 08:58:00,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 744 transitions. [2023-08-26 08:58:00,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:00,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 744 transitions. [2023-08-26 08:58:00,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.8) internal successors, (744), 5 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,464 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,464 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 126 flow. Second operand 5 states and 744 transitions. [2023-08-26 08:58:00,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 247 flow [2023-08-26 08:58:00,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 51 transitions, 243 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 08:58:00,466 INFO L231 Difference]: Finished difference. Result has 46 places, 32 transitions, 129 flow [2023-08-26 08:58:00,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=46, PETRI_TRANSITIONS=32} [2023-08-26 08:58:00,466 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-08-26 08:58:00,467 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 129 flow [2023-08-26 08:58:00,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:00,467 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] [2023-08-26 08:58:00,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:58:00,468 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 08:58:00,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:00,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1167911516, now seen corresponding path program 2 times [2023-08-26 08:58:00,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:00,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091717006] [2023-08-26 08:58:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:58:00,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:00,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091717006] [2023-08-26 08:58:00,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091717006] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:00,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:00,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 08:58:00,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630570306] [2023-08-26 08:58:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:58:00,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:00,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:58:00,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:58:00,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-08-26 08:58:00,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:00,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-08-26 08:58:00,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:00,978 INFO L124 PetriNetUnfolderBase]: 60/160 cut-off events. [2023-08-26 08:58:00,978 INFO L125 PetriNetUnfolderBase]: For 115/118 co-relation queries the response was YES. [2023-08-26 08:58:00,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 160 events. 60/160 cut-off events. For 115/118 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 630 event pairs, 18 based on Foata normal form. 1/149 useless extension candidates. Maximal degree in co-relation 438. Up to 59 conditions per place. [2023-08-26 08:58:00,979 INFO L140 encePairwiseOnDemand]: 333/338 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2023-08-26 08:58:00,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 224 flow [2023-08-26 08:58:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 08:58:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 08:58:00,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 739 transitions. [2023-08-26 08:58:00,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4372781065088757 [2023-08-26 08:58:00,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 739 transitions. [2023-08-26 08:58:00,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 739 transitions. [2023-08-26 08:58:00,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:00,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 739 transitions. [2023-08-26 08:58:00,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,987 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,987 INFO L175 Difference]: Start difference. First operand has 46 places, 32 transitions, 129 flow. Second operand 5 states and 739 transitions. [2023-08-26 08:58:00,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 224 flow [2023-08-26 08:58:00,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 45 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:58:00,990 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2023-08-26 08:58:00,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2023-08-26 08:58:00,990 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2023-08-26 08:58:00,991 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2023-08-26 08:58:00,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:00,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2023-08-26 08:58:00,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2023-08-26 08:58:00,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2023-08-26 08:58:00,996 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2023-08-26 08:58:00,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2023-08-26 08:58:00,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2023-08-26 08:58:00,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2023-08-26 08:58:00,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2023-08-26 08:58:00,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2023-08-26 08:58:00,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONASSERT (10 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2023-08-26 08:58:01,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2023-08-26 08:58:01,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2023-08-26 08:58:01,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2023-08-26 08:58:01,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2023-08-26 08:58:01,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2023-08-26 08:58:01,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2023-08-26 08:58:01,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:58:01,003 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:01,007 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 08:58:01,007 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 08:58:01,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:58:01 BasicIcfg [2023-08-26 08:58:01,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 08:58:01,012 INFO L158 Benchmark]: Toolchain (without parser) took 8031.82ms. Allocated memory was 392.2MB in the beginning and 471.9MB in the end (delta: 79.7MB). Free memory was 346.0MB in the beginning and 335.0MB in the end (delta: 11.1MB). Peak memory consumption was 91.8MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,012 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 392.2MB. Free memory is still 369.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 08:58:01,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.72ms. Allocated memory is still 392.2MB. Free memory was 346.0MB in the beginning and 335.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 392.2MB. Free memory was 335.6MB in the beginning and 333.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,013 INFO L158 Benchmark]: Boogie Preprocessor took 50.69ms. Allocated memory is still 392.2MB. Free memory was 333.5MB in the beginning and 331.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,015 INFO L158 Benchmark]: RCFGBuilder took 509.44ms. Allocated memory is still 392.2MB. Free memory was 331.4MB in the beginning and 312.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,015 INFO L158 Benchmark]: TraceAbstraction took 7222.24ms. Allocated memory was 392.2MB in the beginning and 471.9MB in the end (delta: 79.7MB). Free memory was 312.5MB in the beginning and 335.0MB in the end (delta: -22.5MB). Peak memory consumption was 58.3MB. Max. memory is 16.0GB. [2023-08-26 08:58:01,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 392.2MB. Free memory is still 369.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 200.72ms. Allocated memory is still 392.2MB. Free memory was 346.0MB in the beginning and 335.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 392.2MB. Free memory was 335.6MB in the beginning and 333.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.69ms. Allocated memory is still 392.2MB. Free memory was 333.5MB in the beginning and 331.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 509.44ms. Allocated memory is still 392.2MB. Free memory was 331.4MB in the beginning and 312.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 7222.24ms. Allocated memory was 392.2MB in the beginning and 471.9MB in the end (delta: 79.7MB). Free memory was 312.5MB in the beginning and 335.0MB in the end (delta: -22.5MB). Peak memory consumption was 58.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 157 PlacesBefore, 48 PlacesAfterwards, 158 TransitionsBefore, 43 TransitionsAfterwards, 2420 CoEnabledTransitionPairs, 7 FixpointIterations, 96 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 19 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 169 TotalNumberOfCompositions, 8175 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4244, independent: 3959, independent conditional: 0, independent unconditional: 3959, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1338, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4244, independent: 2650, independent conditional: 0, independent unconditional: 2650, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 1338, unknown conditional: 0, unknown unconditional: 1338] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 208 locations, 29 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: 7.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 115 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 115 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 437 IncrementalHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 7 mSDtfsCounter, 437 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=8, InterpolantAutomatonStates: 31, 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, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 1179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 08:58:01,037 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...