/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/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:37:03,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:37:03,271 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 07:37:03,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:37:03,277 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:37:03,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:37:03,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:37:03,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:37:03,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:37:03,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:37:03,312 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:37:03,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:37:03,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:37:03,313 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:37:03,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:37:03,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:37:03,314 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:37:03,314 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:37:03,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:37:03,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:37:03,315 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:37:03,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:37:03,315 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:37:03,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:37:03,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:37:03,316 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:37:03,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:37:03,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:37:03,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:37:03,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:37:03,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:37:03,319 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:37:03,319 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:37:03,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:37:03,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:37:03,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:37:03,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:37:03,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:37:03,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:37:03,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:37:03,664 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:37:03,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-26 07:37:04,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:37:04,978 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:37:04,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-26 07:37:05,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6deec6d1a/5e80352c8cce498ba4d930ccc688b435/FLAG9c4132e28 [2023-08-26 07:37:05,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6deec6d1a/5e80352c8cce498ba4d930ccc688b435 [2023-08-26 07:37:05,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:37:05,026 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:37:05,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:37:05,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:37:05,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:37:05,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6181a189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05, skipping insertion in model container [2023-08-26 07:37:05,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:37:05,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:37:05,385 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:37:05,414 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 07:37:05,416 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 07:37:05,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:37:05,471 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:37:05,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05 WrapperNode [2023-08-26 07:37:05,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:37:05,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:37:05,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:37:05,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:37:05,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,524 INFO L138 Inliner]: procedures = 163, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-26 07:37:05,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:37:05,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:37:05,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:37:05,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:37:05,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:37:05,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:37:05,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:37:05,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:37:05,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (1/1) ... [2023-08-26 07:37:05,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:37:05,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:37:05,641 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 07:37:05,643 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 07:37:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:37:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:37:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:37:05,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:37:05,671 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 07:37:05,789 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:37:05,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:37:05,981 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:37:05,987 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:37:05,987 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 07:37:05,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:37:05 BoogieIcfgContainer [2023-08-26 07:37:05,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:37:05,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:37:05,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:37:05,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:37:05,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:37:05" (1/3) ... [2023-08-26 07:37:05,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46874b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:37:05, skipping insertion in model container [2023-08-26 07:37:05,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:37:05" (2/3) ... [2023-08-26 07:37:05,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46874b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:37:05, skipping insertion in model container [2023-08-26 07:37:05,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:37:05" (3/3) ... [2023-08-26 07:37:05,996 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_34-traces-minepp-L-needs-to-be-um_true.i [2023-08-26 07:37:06,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:37:06,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-26 07:37:06,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:37:06,088 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:37:06,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 209 flow [2023-08-26 07:37:06,214 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2023-08-26 07:37:06,215 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:06,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-08-26 07:37:06,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 209 flow [2023-08-26 07:37:06,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 101 transitions, 205 flow [2023-08-26 07:37:06,229 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:37:06,242 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 101 transitions, 205 flow [2023-08-26 07:37:06,246 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 101 transitions, 205 flow [2023-08-26 07:37:06,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 101 transitions, 205 flow [2023-08-26 07:37:06,283 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2023-08-26 07:37:06,283 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:06,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 108 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-08-26 07:37:06,286 INFO L119 LiptonReduction]: Number of co-enabled transitions 2052 [2023-08-26 07:37:09,458 INFO L134 LiptonReduction]: Checked pairs total: 6180 [2023-08-26 07:37:09,458 INFO L136 LiptonReduction]: Total number of compositions: 85 [2023-08-26 07:37:09,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:37:09,474 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;@2582bbf9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:37:09,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-26 07:37:09,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:37:09,478 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2023-08-26 07:37:09,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:09,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:09,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:09,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:09,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:09,483 INFO L85 PathProgramCache]: Analyzing trace with hash -488335794, now seen corresponding path program 1 times [2023-08-26 07:37:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:09,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467960090] [2023-08-26 07:37:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:09,701 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 07:37:09,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467960090] [2023-08-26 07:37:09,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467960090] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:09,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:09,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:37:09,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774929237] [2023-08-26 07:37:09,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:09,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:09,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:09,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 187 [2023-08-26 07:37:09,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 30 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 07:37:09,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:09,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 187 [2023-08-26 07:37:09,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:09,827 INFO L124 PetriNetUnfolderBase]: 162/379 cut-off events. [2023-08-26 07:37:09,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:37:09,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 379 events. 162/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1620 event pairs, 72 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 723. Up to 240 conditions per place. [2023-08-26 07:37:09,831 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 38 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-08-26 07:37:09,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 45 transitions, 177 flow [2023-08-26 07:37:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2023-08-26 07:37:09,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5561497326203209 [2023-08-26 07:37:09,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2023-08-26 07:37:09,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2023-08-26 07:37:09,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:09,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2023-08-26 07:37:09,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states 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 07:37:09,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:09,854 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:09,856 INFO L175 Difference]: Start difference. First operand has 32 places, 30 transitions, 63 flow. Second operand 3 states and 312 transitions. [2023-08-26 07:37:09,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 45 transitions, 177 flow [2023-08-26 07:37:09,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 45 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:09,859 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 90 flow [2023-08-26 07:37:09,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2023-08-26 07:37:09,864 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2023-08-26 07:37:09,864 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 90 flow [2023-08-26 07:37:09,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states 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 07:37:09,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:09,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:09,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:37:09,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:09,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 333731115, now seen corresponding path program 1 times [2023-08-26 07:37:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:09,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251529338] [2023-08-26 07:37:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:09,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:09,912 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 07:37:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:09,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251529338] [2023-08-26 07:37:09,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251529338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:09,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:09,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:37:09,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608966935] [2023-08-26 07:37:09,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:09,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:09,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:09,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:09,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:09,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 187 [2023-08-26 07:37:09,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 07:37:09,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:09,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 187 [2023-08-26 07:37:09,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,022 INFO L124 PetriNetUnfolderBase]: 153/368 cut-off events. [2023-08-26 07:37:10,023 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-08-26 07:37:10,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 368 events. 153/368 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1519 event pairs, 112 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 792. Up to 310 conditions per place. [2023-08-26 07:37:10,031 INFO L140 encePairwiseOnDemand]: 183/187 looper letters, 37 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-26 07:37:10,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 206 flow [2023-08-26 07:37:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:10,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2023-08-26 07:37:10,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5347593582887701 [2023-08-26 07:37:10,037 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2023-08-26 07:37:10,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2023-08-26 07:37:10,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2023-08-26 07:37:10,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 07:37:10,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,044 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 90 flow. Second operand 3 states and 300 transitions. [2023-08-26 07:37:10,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 206 flow [2023-08-26 07:37:10,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:37:10,049 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 106 flow [2023-08-26 07:37:10,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-08-26 07:37:10,050 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2023-08-26 07:37:10,050 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 106 flow [2023-08-26 07:37:10,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states 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 07:37:10,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:37:10,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2041459913, now seen corresponding path program 1 times [2023-08-26 07:37:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970823973] [2023-08-26 07:37:10,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:10,197 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 07:37:10,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:10,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970823973] [2023-08-26 07:37:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970823973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:10,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 07:37:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476473719] [2023-08-26 07:37:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:10,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:10,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:10,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:10,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 187 [2023-08-26 07:37:10,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states 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 07:37:10,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:10,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 187 [2023-08-26 07:37:10,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,249 INFO L124 PetriNetUnfolderBase]: 83/259 cut-off events. [2023-08-26 07:37:10,249 INFO L125 PetriNetUnfolderBase]: For 39/43 co-relation queries the response was YES. [2023-08-26 07:37:10,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 259 events. 83/259 cut-off events. For 39/43 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1142 event pairs, 45 based on Foata normal form. 2/229 useless extension candidates. Maximal degree in co-relation 527. Up to 144 conditions per place. [2023-08-26 07:37:10,252 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 27 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-26 07:37:10,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 193 flow [2023-08-26 07:37:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:10,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2023-08-26 07:37:10,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5543672014260249 [2023-08-26 07:37:10,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2023-08-26 07:37:10,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2023-08-26 07:37:10,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2023-08-26 07:37:10,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 07:37:10,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,256 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 106 flow. Second operand 3 states and 311 transitions. [2023-08-26 07:37:10,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 193 flow [2023-08-26 07:37:10,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:10,259 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 128 flow [2023-08-26 07:37:10,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-08-26 07:37:10,261 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2023-08-26 07:37:10,264 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 128 flow [2023-08-26 07:37:10,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states 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 07:37:10,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,265 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:37:10,265 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash 812386811, now seen corresponding path program 1 times [2023-08-26 07:37:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975073052] [2023-08-26 07:37:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:10,377 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 07:37:10,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:10,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975073052] [2023-08-26 07:37:10,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975073052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:10,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:10,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:37:10,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846475761] [2023-08-26 07:37:10,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:10,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:10,379 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 187 [2023-08-26 07:37:10,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states 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 07:37:10,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:10,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 187 [2023-08-26 07:37:10,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,451 INFO L124 PetriNetUnfolderBase]: 120/330 cut-off events. [2023-08-26 07:37:10,451 INFO L125 PetriNetUnfolderBase]: For 140/149 co-relation queries the response was YES. [2023-08-26 07:37:10,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 330 events. 120/330 cut-off events. For 140/149 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1632 event pairs, 33 based on Foata normal form. 4/303 useless extension candidates. Maximal degree in co-relation 812. Up to 194 conditions per place. [2023-08-26 07:37:10,453 INFO L140 encePairwiseOnDemand]: 179/187 looper letters, 36 selfloop transitions, 5 changer transitions 5/56 dead transitions. [2023-08-26 07:37:10,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 56 transitions, 282 flow [2023-08-26 07:37:10,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:10,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2023-08-26 07:37:10,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4919786096256685 [2023-08-26 07:37:10,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2023-08-26 07:37:10,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2023-08-26 07:37:10,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2023-08-26 07:37:10,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 07:37:10,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,458 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 128 flow. Second operand 3 states and 276 transitions. [2023-08-26 07:37:10,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 56 transitions, 282 flow [2023-08-26 07:37:10,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 56 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 07:37:10,460 INFO L231 Difference]: Finished difference. Result has 40 places, 38 transitions, 149 flow [2023-08-26 07:37:10,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=149, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2023-08-26 07:37:10,461 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2023-08-26 07:37:10,461 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 149 flow [2023-08-26 07:37:10,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states 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 07:37:10,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:37:10,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash -670851635, now seen corresponding path program 2 times [2023-08-26 07:37:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120632616] [2023-08-26 07:37:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:10,720 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 07:37:10,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:10,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120632616] [2023-08-26 07:37:10,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120632616] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:10,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:10,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:37:10,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881323110] [2023-08-26 07:37:10,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:10,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:37:10,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:37:10,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:37:10,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 07:37:10,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 07:37:10,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:10,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 07:37:10,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,796 INFO L124 PetriNetUnfolderBase]: 32/120 cut-off events. [2023-08-26 07:37:10,797 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2023-08-26 07:37:10,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 120 events. 32/120 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 344 event pairs, 8 based on Foata normal form. 19/133 useless extension candidates. Maximal degree in co-relation 307. Up to 72 conditions per place. [2023-08-26 07:37:10,801 INFO L140 encePairwiseOnDemand]: 180/187 looper letters, 14 selfloop transitions, 6 changer transitions 10/35 dead transitions. [2023-08-26 07:37:10,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 191 flow [2023-08-26 07:37:10,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:37:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:37:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2023-08-26 07:37:10,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39572192513368987 [2023-08-26 07:37:10,807 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 296 transitions. [2023-08-26 07:37:10,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 296 transitions. [2023-08-26 07:37:10,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 296 transitions. [2023-08-26 07:37:10,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states 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 07:37:10,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:10,811 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:10,811 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 149 flow. Second operand 4 states and 296 transitions. [2023-08-26 07:37:10,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 191 flow [2023-08-26 07:37:10,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 170 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-26 07:37:10,814 INFO L231 Difference]: Finished difference. Result has 36 places, 23 transitions, 78 flow [2023-08-26 07:37:10,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2023-08-26 07:37:10,816 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2023-08-26 07:37:10,817 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 78 flow [2023-08-26 07:37:10,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 07:37:10,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:37:10,818 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1259485076, now seen corresponding path program 1 times [2023-08-26 07:37:10,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536901195] [2023-08-26 07:37:10,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:10,844 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 07:37:10,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536901195] [2023-08-26 07:37:10,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536901195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:10,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:10,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 07:37:10,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307423027] [2023-08-26 07:37:10,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:10,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:10,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:10,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:10,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 187 [2023-08-26 07:37:10,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 07:37:10,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:10,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 187 [2023-08-26 07:37:10,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,886 INFO L124 PetriNetUnfolderBase]: 20/69 cut-off events. [2023-08-26 07:37:10,886 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-08-26 07:37:10,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 69 events. 20/69 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 14 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 165. Up to 56 conditions per place. [2023-08-26 07:37:10,887 INFO L140 encePairwiseOnDemand]: 185/187 looper letters, 17 selfloop transitions, 0 changer transitions 5/24 dead transitions. [2023-08-26 07:37:10,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 24 transitions, 126 flow [2023-08-26 07:37:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-08-26 07:37:10,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062388591800356 [2023-08-26 07:37:10,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-08-26 07:37:10,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-08-26 07:37:10,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-08-26 07:37:10,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 07:37:10,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,891 INFO L175 Difference]: Start difference. First operand has 36 places, 23 transitions, 78 flow. Second operand 3 states and 284 transitions. [2023-08-26 07:37:10,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 24 transitions, 126 flow [2023-08-26 07:37:10,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 24 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 07:37:10,892 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 56 flow [2023-08-26 07:37:10,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-08-26 07:37:10,893 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2023-08-26 07:37:10,893 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 56 flow [2023-08-26 07:37:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 07:37:10,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:37:10,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1647326525, now seen corresponding path program 1 times [2023-08-26 07:37:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013491050] [2023-08-26 07:37:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:10,944 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 07:37:10,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:10,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013491050] [2023-08-26 07:37:10,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013491050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:10,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:10,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:37:10,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273114577] [2023-08-26 07:37:10,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:10,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 07:37:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:10,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 07:37:10,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 07:37:10,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 187 [2023-08-26 07:37:10,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states 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 07:37:10,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:10,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 187 [2023-08-26 07:37:10,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:10,975 INFO L124 PetriNetUnfolderBase]: 6/37 cut-off events. [2023-08-26 07:37:10,975 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-26 07:37:10,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 37 events. 6/37 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 6/43 useless extension candidates. Maximal degree in co-relation 80. Up to 18 conditions per place. [2023-08-26 07:37:10,975 INFO L140 encePairwiseOnDemand]: 183/187 looper letters, 11 selfloop transitions, 4 changer transitions 3/21 dead transitions. [2023-08-26 07:37:10,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 98 flow [2023-08-26 07:37:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 07:37:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 07:37:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 254 transitions. [2023-08-26 07:37:10,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45276292335115864 [2023-08-26 07:37:10,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 254 transitions. [2023-08-26 07:37:10,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 254 transitions. [2023-08-26 07:37:10,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:10,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 254 transitions. [2023-08-26 07:37:10,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states 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 07:37:10,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 07:37:10,979 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 56 flow. Second operand 3 states and 254 transitions. [2023-08-26 07:37:10,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 98 flow [2023-08-26 07:37:10,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 98 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:37:10,980 INFO L231 Difference]: Finished difference. Result has 27 places, 18 transitions, 61 flow [2023-08-26 07:37:10,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=27, PETRI_TRANSITIONS=18} [2023-08-26 07:37:10,981 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2023-08-26 07:37:10,981 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 61 flow [2023-08-26 07:37:10,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states 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 07:37:10,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:10,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:10,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:37:10,982 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:10,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:10,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1619311061, now seen corresponding path program 2 times [2023-08-26 07:37:10,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:10,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924006096] [2023-08-26 07:37:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:10,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:11,097 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 07:37:11,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:11,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924006096] [2023-08-26 07:37:11,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924006096] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:11,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:11,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:37:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239036268] [2023-08-26 07:37:11,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:11,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:37:11,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:11,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:37:11,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:37:11,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 187 [2023-08-26 07:37:11,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 07:37:11,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:11,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 187 [2023-08-26 07:37:11,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:11,130 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-08-26 07:37:11,130 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-26 07:37:11,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 29 events. 3/29 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 69. Up to 14 conditions per place. [2023-08-26 07:37:11,131 INFO L140 encePairwiseOnDemand]: 182/187 looper letters, 9 selfloop transitions, 3 changer transitions 7/22 dead transitions. [2023-08-26 07:37:11,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 111 flow [2023-08-26 07:37:11,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:37:11,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:37:11,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2023-08-26 07:37:11,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117647058823529 [2023-08-26 07:37:11,132 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 308 transitions. [2023-08-26 07:37:11,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 308 transitions. [2023-08-26 07:37:11,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:11,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 308 transitions. [2023-08-26 07:37:11,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 07:37:11,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:11,135 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:11,135 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 61 flow. Second operand 4 states and 308 transitions. [2023-08-26 07:37:11,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 111 flow [2023-08-26 07:37:11,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 22 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:37:11,136 INFO L231 Difference]: Finished difference. Result has 28 places, 15 transitions, 52 flow [2023-08-26 07:37:11,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=15} [2023-08-26 07:37:11,138 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -4 predicate places. [2023-08-26 07:37:11,138 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 52 flow [2023-08-26 07:37:11,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 07:37:11,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:37:11,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:37:11,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:37:11,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-26 07:37:11,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:37:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1652498235, now seen corresponding path program 1 times [2023-08-26 07:37:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:37:11,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60862326] [2023-08-26 07:37:11,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:37:11,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:37:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:37:11,303 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 07:37:11,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:37:11,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60862326] [2023-08-26 07:37:11,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60862326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:37:11,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:37:11,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:37:11,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207350786] [2023-08-26 07:37:11,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:37:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:37:11,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:37:11,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:37:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:37:11,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 187 [2023-08-26 07:37:11,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 52 flow. Second operand has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 07:37:11,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:37:11,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 187 [2023-08-26 07:37:11,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:37:11,325 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-08-26 07:37:11,325 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 07:37:11,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 11 events. 0/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2023-08-26 07:37:11,326 INFO L140 encePairwiseOnDemand]: 184/187 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2023-08-26 07:37:11,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 11 transitions, 59 flow [2023-08-26 07:37:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:37:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:37:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2023-08-26 07:37:11,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2023-08-26 07:37:11,327 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 275 transitions. [2023-08-26 07:37:11,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 275 transitions. [2023-08-26 07:37:11,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:37:11,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 275 transitions. [2023-08-26 07:37:11,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states 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 07:37:11,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:11,330 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 187.0) internal successors, (935), 5 states have internal predecessors, (935), 0 states have call successors, (0), 0 states 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 07:37:11,330 INFO L175 Difference]: Start difference. First operand has 28 places, 15 transitions, 52 flow. Second operand 4 states and 275 transitions. [2023-08-26 07:37:11,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 11 transitions, 59 flow [2023-08-26 07:37:11,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 11 transitions, 48 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:37:11,331 INFO L231 Difference]: Finished difference. Result has 20 places, 0 transitions, 0 flow [2023-08-26 07:37:11,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=20, PETRI_TRANSITIONS=0} [2023-08-26 07:37:11,331 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -12 predicate places. [2023-08-26 07:37:11,332 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 0 transitions, 0 flow [2023-08-26 07:37:11,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 07:37:11,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-26 07:37:11,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2023-08-26 07:37:11,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-26 07:37:11,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-08-26 07:37:11,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-26 07:37:11,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-26 07:37:11,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-26 07:37:11,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:37:11,338 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1] [2023-08-26 07:37:11,342 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:37:11,342 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:37:11,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:37:11 BasicIcfg [2023-08-26 07:37:11,344 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:37:11,345 INFO L158 Benchmark]: Toolchain (without parser) took 6318.96ms. Allocated memory was 329.3MB in the beginning and 427.8MB in the end (delta: 98.6MB). Free memory was 304.5MB in the beginning and 347.9MB in the end (delta: -43.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,345 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 329.3MB. Free memory is still 305.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:37:11,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.10ms. Allocated memory is still 329.3MB. Free memory was 304.5MB in the beginning and 285.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.06ms. Allocated memory is still 329.3MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,346 INFO L158 Benchmark]: Boogie Preprocessor took 32.75ms. Allocated memory is still 329.3MB. Free memory was 283.0MB in the beginning and 281.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,347 INFO L158 Benchmark]: RCFGBuilder took 430.40ms. Allocated memory is still 329.3MB. Free memory was 281.4MB in the beginning and 267.2MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,347 INFO L158 Benchmark]: TraceAbstraction took 5353.92ms. Allocated memory was 329.3MB in the beginning and 427.8MB in the end (delta: 98.6MB). Free memory was 266.3MB in the beginning and 347.9MB in the end (delta: -81.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:37:11,349 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 329.3MB. Free memory is still 305.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 443.10ms. Allocated memory is still 329.3MB. Free memory was 304.5MB in the beginning and 285.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 53.06ms. Allocated memory is still 329.3MB. Free memory was 285.1MB in the beginning and 283.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.75ms. Allocated memory is still 329.3MB. Free memory was 283.0MB in the beginning and 281.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 430.40ms. Allocated memory is still 329.3MB. Free memory was 281.4MB in the beginning and 267.2MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 5353.92ms. Allocated memory was 329.3MB in the beginning and 427.8MB in the end (delta: 98.6MB). Free memory was 266.3MB in the beginning and 347.9MB in the end (delta: -81.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 102 PlacesBefore, 32 PlacesAfterwards, 101 TransitionsBefore, 30 TransitionsAfterwards, 2052 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 85 TotalNumberOfCompositions, 6180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2846, independent: 2558, independent conditional: 0, independent unconditional: 2558, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1111, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2846, independent: 1486, independent conditional: 0, independent unconditional: 1486, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 1111, unknown conditional: 0, unknown unconditional: 1111] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 93, Positive conditional cache size: 0, Positive unconditional cache size: 93, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 7 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: 5.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 353 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 20 mSDtfsCounter, 353 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 396 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:37:11,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...