/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-ext/03_incdec.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 02:59:27,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 02:59:27,640 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 [2023-08-27 02:59:27,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 02:59:27,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 02:59:27,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 02:59:27,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 02:59:27,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 02:59:27,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 02:59:27,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 02:59:27,685 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 02:59:27,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 02:59:27,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 02:59:27,687 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 02:59:27,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 02:59:27,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 02:59:27,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 02:59:27,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 02:59:27,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 02:59:27,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 02:59:27,688 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 02:59:27,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 02:59:27,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 02:59:27,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 02:59:27,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 02:59:27,690 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 02:59:27,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 02:59:27,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:59:27,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 02:59:27,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 02:59:27,692 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 02:59:28,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 02:59:28,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 02:59:28,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 02:59:28,026 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 02:59:28,026 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 02:59:28,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec.i [2023-08-27 02:59:29,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 02:59:29,455 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 02:59:29,456 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec.i [2023-08-27 02:59:29,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfb2cad9/83f164e9bf8143119ad81ead50054c77/FLAG11ab209c9 [2023-08-27 02:59:29,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cfb2cad9/83f164e9bf8143119ad81ead50054c77 [2023-08-27 02:59:29,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 02:59:29,481 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 02:59:29,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 02:59:29,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 02:59:29,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 02:59:29,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20355f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29, skipping insertion in model container [2023-08-27 02:59:29,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 02:59:29,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:59:29,836 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 02:59:29,865 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 02:59:29,866 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-27 02:59:29,874 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [689] [2023-08-27 02:59:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [700] [2023-08-27 02:59:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [701] [2023-08-27 02:59:29,876 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [702] [2023-08-27 02:59:29,877 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [703] [2023-08-27 02:59:29,881 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [716] [2023-08-27 02:59:29,881 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [717] [2023-08-27 02:59:29,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 02:59:29,926 INFO L206 MainTranslator]: Completed translation [2023-08-27 02:59:29,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29 WrapperNode [2023-08-27 02:59:29,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 02:59:29,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 02:59:29,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 02:59:29,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 02:59:29,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,965 INFO L138 Inliner]: procedures = 172, calls = 26, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 140 [2023-08-27 02:59:29,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 02:59:29,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 02:59:29,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 02:59:29,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 02:59:29,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:29,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 02:59:30,000 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 02:59:30,000 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 02:59:30,000 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 02:59:30,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (1/1) ... [2023-08-27 02:59:30,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 02:59:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 02:59:30,026 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) [2023-08-27 02:59:30,035 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 [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-27 02:59:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 02:59:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 02:59:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 02:59:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 02:59:30,058 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 02:59:30,155 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 02:59:30,157 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 02:59:30,417 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 02:59:30,518 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 02:59:30,518 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-27 02:59:30,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:59:30 BoogieIcfgContainer [2023-08-27 02:59:30,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 02:59:30,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 02:59:30,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 02:59:30,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 02:59:30,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 02:59:29" (1/3) ... [2023-08-27 02:59:30,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9c6f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:59:30, skipping insertion in model container [2023-08-27 02:59:30,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:59:29" (2/3) ... [2023-08-27 02:59:30,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9c6f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:59:30, skipping insertion in model container [2023-08-27 02:59:30,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:59:30" (3/3) ... [2023-08-27 02:59:30,528 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2023-08-27 02:59:30,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 02:59:30,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-27 02:59:30,542 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 02:59:30,608 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:30,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,665 INFO L124 PetriNetUnfolderBase]: 9/99 cut-off events. [2023-08-27 02:59:30,665 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 02:59:30,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 9/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 177 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 73. Up to 4 conditions per place. [2023-08-27 02:59:30,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,676 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:30,684 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,690 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 183 flow [2023-08-27 02:59:30,717 INFO L124 PetriNetUnfolderBase]: 9/99 cut-off events. [2023-08-27 02:59:30,717 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 02:59:30,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 9/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 177 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 73. Up to 4 conditions per place. [2023-08-27 02:59:30,719 INFO L119 LiptonReduction]: Number of co-enabled transitions 1586 [2023-08-27 02:59:35,529 INFO L134 LiptonReduction]: Checked pairs total: 1644 [2023-08-27 02:59:35,530 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-27 02:59:35,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:35,546 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:35,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:35,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:35,549 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-27 02:59:35,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 02:59:35,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:35,550 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-27 02:59:35,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:35,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash 785988836, now seen corresponding path program 1 times [2023-08-27 02:59:35,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:35,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638086258] [2023-08-27 02:59:35,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:35,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:35,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:35,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:35,705 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:35,706 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:35,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 02:59:35,708 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:35,714 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:35,715 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:35,715 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-27 02:59:35,755 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:35,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,807 INFO L124 PetriNetUnfolderBase]: 17/173 cut-off events. [2023-08-27 02:59:35,807 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 02:59:35,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 173 events. 17/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 533 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 134. Up to 6 conditions per place. [2023-08-27 02:59:35,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,815 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:35,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,816 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 151 transitions, 314 flow [2023-08-27 02:59:35,848 INFO L124 PetriNetUnfolderBase]: 17/173 cut-off events. [2023-08-27 02:59:35,848 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 02:59:35,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 173 events. 17/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 533 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 134. Up to 6 conditions per place. [2023-08-27 02:59:35,856 INFO L119 LiptonReduction]: Number of co-enabled transitions 10736 [2023-08-27 02:59:38,523 INFO L134 LiptonReduction]: Checked pairs total: 38365 [2023-08-27 02:59:38,523 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-08-27 02:59:38,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:38,526 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:38,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:38,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:38,531 INFO L124 PetriNetUnfolderBase]: 7/53 cut-off events. [2023-08-27 02:59:38,531 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 02:59:38,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:38,531 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-27 02:59:38,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:38,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1651282320, now seen corresponding path program 1 times [2023-08-27 02:59:38,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:38,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253605738] [2023-08-27 02:59:38,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:38,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:38,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:38,598 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:38,598 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:38,599 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:38,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 02:59:38,599 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:38,600 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:38,600 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:38,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-27 02:59:38,625 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:38,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,655 INFO L124 PetriNetUnfolderBase]: 25/247 cut-off events. [2023-08-27 02:59:38,655 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 02:59:38,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 247 events. 25/247 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 896 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2023-08-27 02:59:38,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,660 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,660 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:38,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,660 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 213 transitions, 447 flow [2023-08-27 02:59:38,690 INFO L124 PetriNetUnfolderBase]: 25/247 cut-off events. [2023-08-27 02:59:38,691 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 02:59:38,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 247 events. 25/247 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 896 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 195. Up to 8 conditions per place. [2023-08-27 02:59:38,704 INFO L119 LiptonReduction]: Number of co-enabled transitions 27450 [2023-08-27 02:59:42,230 INFO L134 LiptonReduction]: Checked pairs total: 102446 [2023-08-27 02:59:42,230 INFO L136 LiptonReduction]: Total number of compositions: 196 [2023-08-27 02:59:42,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:42,233 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:42,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:42,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:42,245 INFO L124 PetriNetUnfolderBase]: 13/88 cut-off events. [2023-08-27 02:59:42,246 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-27 02:59:42,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:42,246 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-27 02:59:42,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:42,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:42,247 INFO L85 PathProgramCache]: Analyzing trace with hash -391524946, now seen corresponding path program 1 times [2023-08-27 02:59:42,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:42,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297165196] [2023-08-27 02:59:42,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:42,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:42,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:42,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:42,313 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:42,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:42,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 02:59:42,313 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:42,314 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:42,314 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:42,314 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-27 02:59:42,361 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:42,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,417 INFO L124 PetriNetUnfolderBase]: 33/321 cut-off events. [2023-08-27 02:59:42,417 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 02:59:42,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 321 events. 33/321 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1276 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 256. Up to 10 conditions per place. [2023-08-27 02:59:42,420 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,423 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:42,423 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,424 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 275 transitions, 582 flow [2023-08-27 02:59:42,466 INFO L124 PetriNetUnfolderBase]: 33/321 cut-off events. [2023-08-27 02:59:42,466 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 02:59:42,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 321 events. 33/321 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1276 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 256. Up to 10 conditions per place. [2023-08-27 02:59:42,487 INFO L119 LiptonReduction]: Number of co-enabled transitions 51728 [2023-08-27 02:59:46,603 INFO L134 LiptonReduction]: Checked pairs total: 200982 [2023-08-27 02:59:46,604 INFO L136 LiptonReduction]: Total number of compositions: 257 [2023-08-27 02:59:46,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:46,606 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:46,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:46,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:46,617 INFO L124 PetriNetUnfolderBase]: 18/120 cut-off events. [2023-08-27 02:59:46,617 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-27 02:59:46,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:46,617 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-27 02:59:46,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:46,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:46,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1764880746, now seen corresponding path program 1 times [2023-08-27 02:59:46,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:46,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407914619] [2023-08-27 02:59:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:46,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:46,634 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:46,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:46,649 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:46,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:46,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-27 02:59:46,649 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:46,650 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:46,650 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:46,650 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-27 02:59:46,681 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:46,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,742 INFO L124 PetriNetUnfolderBase]: 41/395 cut-off events. [2023-08-27 02:59:46,743 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 02:59:46,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 395 events. 41/395 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1642 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2023-08-27 02:59:46,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,752 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:46,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 337 transitions, 719 flow [2023-08-27 02:59:46,814 INFO L124 PetriNetUnfolderBase]: 41/395 cut-off events. [2023-08-27 02:59:46,814 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 02:59:46,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 395 events. 41/395 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1642 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 334. Up to 12 conditions per place. [2023-08-27 02:59:46,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 83570 [2023-08-27 02:59:51,879 INFO L134 LiptonReduction]: Checked pairs total: 320430 [2023-08-27 02:59:51,879 INFO L136 LiptonReduction]: Total number of compositions: 307 [2023-08-27 02:59:51,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:51,881 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:51,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:51,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:51,896 INFO L124 PetriNetUnfolderBase]: 22/150 cut-off events. [2023-08-27 02:59:51,896 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 02:59:51,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:51,896 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 02:59:51,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:51,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:51,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1426580720, now seen corresponding path program 1 times [2023-08-27 02:59:51,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:51,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125365961] [2023-08-27 02:59:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:51,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:51,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:51,927 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:51,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:51,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:51,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-27 02:59:51,928 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:51,928 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:51,929 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:51,929 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-27 02:59:51,963 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:51,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,047 INFO L124 PetriNetUnfolderBase]: 49/469 cut-off events. [2023-08-27 02:59:52,048 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 02:59:52,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 469 events. 49/469 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2029 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 414. Up to 14 conditions per place. [2023-08-27 02:59:52,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,061 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,061 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:52,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,062 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 399 transitions, 858 flow [2023-08-27 02:59:52,142 INFO L124 PetriNetUnfolderBase]: 49/469 cut-off events. [2023-08-27 02:59:52,142 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 02:59:52,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 509 conditions, 469 events. 49/469 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2029 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 414. Up to 14 conditions per place. [2023-08-27 02:59:52,177 INFO L119 LiptonReduction]: Number of co-enabled transitions 122976 [2023-08-27 02:59:57,900 INFO L134 LiptonReduction]: Checked pairs total: 505673 [2023-08-27 02:59:57,900 INFO L136 LiptonReduction]: Total number of compositions: 367 [2023-08-27 02:59:57,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 02:59:57,902 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 02:59:57,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 02:59:57,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 02:59:57,923 INFO L124 PetriNetUnfolderBase]: 31/192 cut-off events. [2023-08-27 02:59:57,923 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-27 02:59:57,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 02:59:57,924 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 02:59:57,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 02:59:57,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 02:59:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash -316149396, now seen corresponding path program 1 times [2023-08-27 02:59:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 02:59:57,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990967369] [2023-08-27 02:59:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 02:59:57,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 02:59:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:57,943 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 02:59:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 02:59:57,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 02:59:57,959 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 02:59:57,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 02:59:57,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-27 02:59:57,959 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 02:59:57,960 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 02:59:57,960 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 02:59:57,960 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-27 02:59:57,999 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 02:59:58,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,144 INFO L124 PetriNetUnfolderBase]: 57/543 cut-off events. [2023-08-27 02:59:58,145 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 02:59:58,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 543 events. 57/543 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2400 event pairs, 0 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 497. Up to 16 conditions per place. [2023-08-27 02:59:58,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,161 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 02:59:58,161 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,161 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 461 transitions, 999 flow [2023-08-27 02:59:58,276 INFO L124 PetriNetUnfolderBase]: 57/543 cut-off events. [2023-08-27 02:59:58,276 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 02:59:58,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 593 conditions, 543 events. 57/543 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2400 event pairs, 0 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 497. Up to 16 conditions per place. [2023-08-27 02:59:58,326 INFO L119 LiptonReduction]: Number of co-enabled transitions 169946 [2023-08-27 03:00:04,762 INFO L134 LiptonReduction]: Checked pairs total: 700605 [2023-08-27 03:00:04,762 INFO L136 LiptonReduction]: Total number of compositions: 426 [2023-08-27 03:00:04,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:04,764 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:04,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:04,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:04,798 INFO L124 PetriNetUnfolderBase]: 41/238 cut-off events. [2023-08-27 03:00:04,798 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-27 03:00:04,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:04,799 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:04,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:04,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:04,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1436229294, now seen corresponding path program 1 times [2023-08-27 03:00:04,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:04,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102667388] [2023-08-27 03:00:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:04,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:04,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:04,860 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:04,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:04,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-27 03:00:04,861 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:04,861 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:04,861 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:04,861 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-27 03:00:04,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:04,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,099 INFO L124 PetriNetUnfolderBase]: 65/617 cut-off events. [2023-08-27 03:00:05,099 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:00:05,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 617 events. 65/617 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2778 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 581. Up to 18 conditions per place. [2023-08-27 03:00:05,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,117 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,118 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:05,118 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,118 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 483 places, 523 transitions, 1142 flow [2023-08-27 03:00:05,253 INFO L124 PetriNetUnfolderBase]: 65/617 cut-off events. [2023-08-27 03:00:05,253 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:00:05,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 617 events. 65/617 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2778 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 581. Up to 18 conditions per place. [2023-08-27 03:00:05,319 INFO L119 LiptonReduction]: Number of co-enabled transitions 224480 [2023-08-27 03:00:13,058 INFO L134 LiptonReduction]: Checked pairs total: 921043 [2023-08-27 03:00:13,058 INFO L136 LiptonReduction]: Total number of compositions: 495 [2023-08-27 03:00:13,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:13,060 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:13,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:13,094 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:13,094 INFO L124 PetriNetUnfolderBase]: 47/273 cut-off events. [2023-08-27 03:00:13,095 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-27 03:00:13,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:13,095 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:13,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:13,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:13,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1366548325, now seen corresponding path program 1 times [2023-08-27 03:00:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103137923] [2023-08-27 03:00:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:13,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:13,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:13,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:13,129 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:13,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:13,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-27 03:00:13,130 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:13,130 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:13,130 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:13,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-27 03:00:13,182 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:13,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,358 INFO L124 PetriNetUnfolderBase]: 73/691 cut-off events. [2023-08-27 03:00:13,358 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:00:13,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 691 events. 73/691 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3170 event pairs, 0 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 666. Up to 20 conditions per place. [2023-08-27 03:00:13,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:13,390 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,390 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 585 transitions, 1287 flow [2023-08-27 03:00:13,570 INFO L124 PetriNetUnfolderBase]: 73/691 cut-off events. [2023-08-27 03:00:13,570 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:00:13,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 691 events. 73/691 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3170 event pairs, 0 based on Foata normal form. 0/590 useless extension candidates. Maximal degree in co-relation 666. Up to 20 conditions per place. [2023-08-27 03:00:13,643 INFO L119 LiptonReduction]: Number of co-enabled transitions 286578 [2023-08-27 03:00:22,044 INFO L134 LiptonReduction]: Checked pairs total: 1170242 [2023-08-27 03:00:22,044 INFO L136 LiptonReduction]: Total number of compositions: 542 [2023-08-27 03:00:22,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:22,051 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:22,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:22,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:22,098 INFO L124 PetriNetUnfolderBase]: 53/308 cut-off events. [2023-08-27 03:00:22,098 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-27 03:00:22,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:22,099 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:22,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:22,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:22,099 INFO L85 PathProgramCache]: Analyzing trace with hash 318468832, now seen corresponding path program 1 times [2023-08-27 03:00:22,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:22,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122098848] [2023-08-27 03:00:22,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:22,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:22,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:22,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:22,157 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:22,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-27 03:00:22,159 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:22,160 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:22,160 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:22,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-27 03:00:22,215 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:22,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,392 INFO L124 PetriNetUnfolderBase]: 81/765 cut-off events. [2023-08-27 03:00:22,392 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:00:22,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 765 events. 81/765 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3566 event pairs, 0 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 752. Up to 22 conditions per place. [2023-08-27 03:00:22,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,425 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:22,425 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,425 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 647 transitions, 1434 flow [2023-08-27 03:00:22,733 INFO L124 PetriNetUnfolderBase]: 81/765 cut-off events. [2023-08-27 03:00:22,733 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:00:22,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 765 events. 81/765 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3566 event pairs, 0 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 752. Up to 22 conditions per place. [2023-08-27 03:00:22,815 INFO L119 LiptonReduction]: Number of co-enabled transitions 356240 [2023-08-27 03:00:32,002 INFO L134 LiptonReduction]: Checked pairs total: 1447292 [2023-08-27 03:00:32,002 INFO L136 LiptonReduction]: Total number of compositions: 605 [2023-08-27 03:00:32,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:32,004 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:32,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:32,057 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:32,057 INFO L124 PetriNetUnfolderBase]: 59/342 cut-off events. [2023-08-27 03:00:32,057 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-27 03:00:32,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:32,057 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:32,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:32,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:32,058 INFO L85 PathProgramCache]: Analyzing trace with hash -736247343, now seen corresponding path program 1 times [2023-08-27 03:00:32,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:32,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680142434] [2023-08-27 03:00:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:32,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:32,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:32,090 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:32,090 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:32,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-27 03:00:32,090 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:32,090 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:32,091 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:32,091 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-27 03:00:32,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:32,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,398 INFO L124 PetriNetUnfolderBase]: 89/839 cut-off events. [2023-08-27 03:00:32,398 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:00:32,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 839 events. 89/839 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3943 event pairs, 0 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 839. Up to 24 conditions per place. [2023-08-27 03:00:32,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,429 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,429 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:32,429 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,429 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 654 places, 709 transitions, 1583 flow [2023-08-27 03:00:32,608 INFO L124 PetriNetUnfolderBase]: 89/839 cut-off events. [2023-08-27 03:00:32,608 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:00:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 839 events. 89/839 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3943 event pairs, 0 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 839. Up to 24 conditions per place. [2023-08-27 03:00:32,696 INFO L119 LiptonReduction]: Number of co-enabled transitions 433466 [2023-08-27 03:00:42,993 INFO L134 LiptonReduction]: Checked pairs total: 1755203 [2023-08-27 03:00:42,993 INFO L136 LiptonReduction]: Total number of compositions: 660 [2023-08-27 03:00:42,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:42,995 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:42,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:43,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:43,067 INFO L124 PetriNetUnfolderBase]: 67/382 cut-off events. [2023-08-27 03:00:43,067 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-27 03:00:43,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:43,068 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:43,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:43,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2118697841, now seen corresponding path program 1 times [2023-08-27 03:00:43,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:43,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252636879] [2023-08-27 03:00:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:43,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:43,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:43,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:43,114 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:43,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:43,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-27 03:00:43,114 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:43,116 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:43,116 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:43,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-27 03:00:43,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:43,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,475 INFO L124 PetriNetUnfolderBase]: 97/913 cut-off events. [2023-08-27 03:00:43,475 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:00:43,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 913 events. 97/913 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4302 event pairs, 0 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 927. Up to 26 conditions per place. [2023-08-27 03:00:43,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,519 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:43,519 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,520 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 711 places, 771 transitions, 1734 flow [2023-08-27 03:00:43,810 INFO L124 PetriNetUnfolderBase]: 97/913 cut-off events. [2023-08-27 03:00:43,810 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:00:43,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 913 events. 97/913 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4302 event pairs, 0 based on Foata normal form. 0/779 useless extension candidates. Maximal degree in co-relation 927. Up to 26 conditions per place. [2023-08-27 03:00:43,964 INFO L119 LiptonReduction]: Number of co-enabled transitions 518256 [2023-08-27 03:00:54,991 INFO L134 LiptonReduction]: Checked pairs total: 2109745 [2023-08-27 03:00:54,992 INFO L136 LiptonReduction]: Total number of compositions: 721 [2023-08-27 03:00:54,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:00:54,993 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:00:54,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:00:55,051 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:00:55,051 INFO L124 PetriNetUnfolderBase]: 69/409 cut-off events. [2023-08-27 03:00:55,051 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-27 03:00:55,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:00:55,052 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:00:55,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:00:55,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:00:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1665549275, now seen corresponding path program 1 times [2023-08-27 03:00:55,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:00:55,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574433894] [2023-08-27 03:00:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:00:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:00:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:55,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:00:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:00:55,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:00:55,087 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:00:55,087 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:00:55,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-27 03:00:55,088 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:00:55,088 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:00:55,088 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:00:55,088 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-27 03:00:55,153 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:00:55,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,613 INFO L124 PetriNetUnfolderBase]: 105/987 cut-off events. [2023-08-27 03:00:55,613 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:00:55,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 987 events. 105/987 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4661 event pairs, 0 based on Foata normal form. 0/842 useless extension candidates. Maximal degree in co-relation 1016. Up to 28 conditions per place. [2023-08-27 03:00:55,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,644 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:00:55,645 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,645 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 768 places, 833 transitions, 1887 flow [2023-08-27 03:00:55,931 INFO L124 PetriNetUnfolderBase]: 105/987 cut-off events. [2023-08-27 03:00:55,931 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:00:55,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 987 events. 105/987 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4661 event pairs, 0 based on Foata normal form. 0/842 useless extension candidates. Maximal degree in co-relation 1016. Up to 28 conditions per place. [2023-08-27 03:00:56,064 INFO L119 LiptonReduction]: Number of co-enabled transitions 610610 [2023-08-27 03:01:08,120 INFO L134 LiptonReduction]: Checked pairs total: 2535370 [2023-08-27 03:01:08,121 INFO L136 LiptonReduction]: Total number of compositions: 781 [2023-08-27 03:01:08,123 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:08,126 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:08,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:08,203 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:08,203 INFO L124 PetriNetUnfolderBase]: 80/454 cut-off events. [2023-08-27 03:01:08,203 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-27 03:01:08,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:08,203 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:08,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:08,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:08,204 INFO L85 PathProgramCache]: Analyzing trace with hash -925446254, now seen corresponding path program 1 times [2023-08-27 03:01:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:08,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973318391] [2023-08-27 03:01:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:08,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:08,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:08,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:08,244 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:08,244 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:08,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-27 03:01:08,244 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:08,244 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:08,244 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:08,245 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-27 03:01:08,321 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:08,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:08,639 INFO L124 PetriNetUnfolderBase]: 113/1061 cut-off events. [2023-08-27 03:01:08,639 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:01:08,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 1061 events. 113/1061 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5108 event pairs, 0 based on Foata normal form. 0/905 useless extension candidates. Maximal degree in co-relation 1106. Up to 30 conditions per place. [2023-08-27 03:01:08,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:08,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:08,687 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:08,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:08,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:08,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 895 transitions, 2042 flow [2023-08-27 03:01:09,005 INFO L124 PetriNetUnfolderBase]: 113/1061 cut-off events. [2023-08-27 03:01:09,006 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:01:09,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1209 conditions, 1061 events. 113/1061 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5108 event pairs, 0 based on Foata normal form. 0/905 useless extension candidates. Maximal degree in co-relation 1106. Up to 30 conditions per place. [2023-08-27 03:01:09,160 INFO L119 LiptonReduction]: Number of co-enabled transitions 710528 [2023-08-27 03:01:22,739 INFO L134 LiptonReduction]: Checked pairs total: 2911110 [2023-08-27 03:01:22,739 INFO L136 LiptonReduction]: Total number of compositions: 836 [2023-08-27 03:01:22,741 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:22,741 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:22,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:22,808 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:22,808 INFO L124 PetriNetUnfolderBase]: 85/484 cut-off events. [2023-08-27 03:01:22,809 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-27 03:01:22,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:22,809 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:22,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:22,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash -192281564, now seen corresponding path program 1 times [2023-08-27 03:01:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794755871] [2023-08-27 03:01:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:22,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:22,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:22,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:22,882 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:22,882 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:22,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-27 03:01:22,882 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:22,884 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:22,884 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:22,884 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-27 03:01:22,968 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:22,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,416 INFO L124 PetriNetUnfolderBase]: 121/1135 cut-off events. [2023-08-27 03:01:23,417 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:01:23,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 1135 events. 121/1135 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5466 event pairs, 0 based on Foata normal form. 0/968 useless extension candidates. Maximal degree in co-relation 1197. Up to 32 conditions per place. [2023-08-27 03:01:23,456 INFO L82 GeneralOperation]: Start removeDead. Operand has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,471 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:23,471 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,471 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 957 transitions, 2199 flow [2023-08-27 03:01:23,833 INFO L124 PetriNetUnfolderBase]: 121/1135 cut-off events. [2023-08-27 03:01:23,834 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:01:23,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1301 conditions, 1135 events. 121/1135 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5466 event pairs, 0 based on Foata normal form. 0/968 useless extension candidates. Maximal degree in co-relation 1197. Up to 32 conditions per place. [2023-08-27 03:01:24,016 INFO L119 LiptonReduction]: Number of co-enabled transitions 818010 [2023-08-27 03:01:38,253 INFO L134 LiptonReduction]: Checked pairs total: 3395895 [2023-08-27 03:01:38,253 INFO L136 LiptonReduction]: Total number of compositions: 896 [2023-08-27 03:01:38,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:38,255 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:38,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:38,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:38,341 INFO L124 PetriNetUnfolderBase]: 93/525 cut-off events. [2023-08-27 03:01:38,341 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-27 03:01:38,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:38,341 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:38,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:38,341 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -573350805, now seen corresponding path program 1 times [2023-08-27 03:01:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857802476] [2023-08-27 03:01:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:38,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:38,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:38,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:38,394 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:38,395 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:38,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-27 03:01:38,395 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:38,395 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:38,396 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:38,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-27 03:01:38,477 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:38,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:38,869 INFO L124 PetriNetUnfolderBase]: 129/1209 cut-off events. [2023-08-27 03:01:38,870 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:01:38,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 1209 events. 129/1209 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5896 event pairs, 0 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1289. Up to 34 conditions per place. [2023-08-27 03:01:38,917 INFO L82 GeneralOperation]: Start removeDead. Operand has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:38,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:38,932 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:38,932 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:38,933 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:38,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 939 places, 1019 transitions, 2358 flow [2023-08-27 03:01:39,354 INFO L124 PetriNetUnfolderBase]: 129/1209 cut-off events. [2023-08-27 03:01:39,354 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:01:39,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1394 conditions, 1209 events. 129/1209 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5896 event pairs, 0 based on Foata normal form. 0/1031 useless extension candidates. Maximal degree in co-relation 1289. Up to 34 conditions per place. [2023-08-27 03:01:39,535 INFO L119 LiptonReduction]: Number of co-enabled transitions 933056 [2023-08-27 03:01:54,605 INFO L134 LiptonReduction]: Checked pairs total: 3912462 [2023-08-27 03:01:54,605 INFO L136 LiptonReduction]: Total number of compositions: 949 [2023-08-27 03:01:54,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:01:54,607 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:01:54,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:01:54,714 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:01:54,715 INFO L124 PetriNetUnfolderBase]: 99/561 cut-off events. [2023-08-27 03:01:54,715 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-27 03:01:54,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:01:54,715 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:01:54,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:01:54,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:01:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash -706579779, now seen corresponding path program 1 times [2023-08-27 03:01:54,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:01:54,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524606863] [2023-08-27 03:01:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:01:54,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:01:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:54,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:01:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:01:54,762 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:01:54,762 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:01:54,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:01:54,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-27 03:01:54,762 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:01:54,763 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:01:54,763 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:01:54,763 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-27 03:01:54,847 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:01:54,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,429 INFO L124 PetriNetUnfolderBase]: 137/1283 cut-off events. [2023-08-27 03:01:55,429 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:01:55,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 1283 events. 137/1283 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6248 event pairs, 0 based on Foata normal form. 0/1094 useless extension candidates. Maximal degree in co-relation 1382. Up to 36 conditions per place. [2023-08-27 03:01:55,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,474 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:01:55,474 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,474 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 1081 transitions, 2519 flow [2023-08-27 03:01:55,931 INFO L124 PetriNetUnfolderBase]: 137/1283 cut-off events. [2023-08-27 03:01:55,931 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:01:55,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 1283 events. 137/1283 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6248 event pairs, 0 based on Foata normal form. 0/1094 useless extension candidates. Maximal degree in co-relation 1382. Up to 36 conditions per place. [2023-08-27 03:01:56,196 INFO L119 LiptonReduction]: Number of co-enabled transitions 1055666 [2023-08-27 03:02:12,639 INFO L134 LiptonReduction]: Checked pairs total: 4327310 [2023-08-27 03:02:12,639 INFO L136 LiptonReduction]: Total number of compositions: 1026 [2023-08-27 03:02:12,640 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:12,641 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:12,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:12,784 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:12,784 INFO L124 PetriNetUnfolderBase]: 106/596 cut-off events. [2023-08-27 03:02:12,784 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-27 03:02:12,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:12,784 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:12,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:12,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1699385649, now seen corresponding path program 1 times [2023-08-27 03:02:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687127113] [2023-08-27 03:02:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:12,809 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:12,835 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:12,835 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:12,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:12,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-27 03:02:12,836 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:12,836 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:12,837 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:12,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-27 03:02:12,924 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:12,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:13,421 INFO L124 PetriNetUnfolderBase]: 145/1357 cut-off events. [2023-08-27 03:02:13,421 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:02:13,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1357 events. 145/1357 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6610 event pairs, 0 based on Foata normal form. 0/1157 useless extension candidates. Maximal degree in co-relation 1476. Up to 38 conditions per place. [2023-08-27 03:02:13,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:13,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:13,505 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:13,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:13,505 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:13,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1053 places, 1143 transitions, 2682 flow [2023-08-27 03:02:14,014 INFO L124 PetriNetUnfolderBase]: 145/1357 cut-off events. [2023-08-27 03:02:14,014 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:02:14,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1583 conditions, 1357 events. 145/1357 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6610 event pairs, 0 based on Foata normal form. 0/1157 useless extension candidates. Maximal degree in co-relation 1476. Up to 38 conditions per place. [2023-08-27 03:02:14,328 INFO L119 LiptonReduction]: Number of co-enabled transitions 1185840 [2023-08-27 03:02:32,144 INFO L134 LiptonReduction]: Checked pairs total: 4934157 [2023-08-27 03:02:32,144 INFO L136 LiptonReduction]: Total number of compositions: 1080 [2023-08-27 03:02:32,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:32,146 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:32,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:32,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:32,266 INFO L124 PetriNetUnfolderBase]: 114/637 cut-off events. [2023-08-27 03:02:32,266 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-27 03:02:32,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:32,266 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:32,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:32,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:32,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1878601000, now seen corresponding path program 1 times [2023-08-27 03:02:32,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:32,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696331065] [2023-08-27 03:02:32,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:32,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:32,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:32,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:32,319 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:32,319 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:32,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-27 03:02:32,319 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:32,319 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:32,319 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:32,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-27 03:02:32,412 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:32,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,056 INFO L124 PetriNetUnfolderBase]: 153/1431 cut-off events. [2023-08-27 03:02:33,057 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:02:33,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1431 events. 153/1431 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 7029 event pairs, 0 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 1571. Up to 40 conditions per place. [2023-08-27 03:02:33,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,135 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:33,135 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,135 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1110 places, 1205 transitions, 2847 flow [2023-08-27 03:02:33,652 INFO L124 PetriNetUnfolderBase]: 153/1431 cut-off events. [2023-08-27 03:02:33,652 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:02:33,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1431 events. 153/1431 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 7029 event pairs, 0 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 1571. Up to 40 conditions per place. [2023-08-27 03:02:34,065 INFO L119 LiptonReduction]: Number of co-enabled transitions 1323578 [2023-08-27 03:02:52,954 INFO L134 LiptonReduction]: Checked pairs total: 5432122 [2023-08-27 03:02:52,954 INFO L136 LiptonReduction]: Total number of compositions: 1136 [2023-08-27 03:02:52,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:02:52,957 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:02:52,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:02:53,090 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:02:53,090 INFO L124 PetriNetUnfolderBase]: 114/660 cut-off events. [2023-08-27 03:02:53,090 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-27 03:02:53,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:02:53,090 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:02:53,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:02:53,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:02:53,091 INFO L85 PathProgramCache]: Analyzing trace with hash -425818188, now seen corresponding path program 1 times [2023-08-27 03:02:53,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:02:53,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196033303] [2023-08-27 03:02:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:02:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:02:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:53,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:02:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:02:53,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:02:53,147 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:02:53,147 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:02:53,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-27 03:02:53,147 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:02:53,148 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:02:53,148 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:02:53,148 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-27 03:02:53,246 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:02:53,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:53,956 INFO L124 PetriNetUnfolderBase]: 161/1505 cut-off events. [2023-08-27 03:02:53,956 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:02:54,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1505 events. 161/1505 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7382 event pairs, 0 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 1667. Up to 42 conditions per place. [2023-08-27 03:02:54,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:54,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:54,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:02:54,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:54,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:54,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1167 places, 1267 transitions, 3014 flow [2023-08-27 03:02:54,632 INFO L124 PetriNetUnfolderBase]: 161/1505 cut-off events. [2023-08-27 03:02:54,632 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:02:54,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1505 events. 161/1505 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7382 event pairs, 0 based on Foata normal form. 0/1283 useless extension candidates. Maximal degree in co-relation 1667. Up to 42 conditions per place. [2023-08-27 03:02:54,993 INFO L119 LiptonReduction]: Number of co-enabled transitions 1468880 [2023-08-27 03:03:14,570 INFO L134 LiptonReduction]: Checked pairs total: 6083371 [2023-08-27 03:03:14,570 INFO L136 LiptonReduction]: Total number of compositions: 1186 [2023-08-27 03:03:14,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:14,572 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:14,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:14,711 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:14,711 INFO L124 PetriNetUnfolderBase]: 123/701 cut-off events. [2023-08-27 03:03:14,711 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-27 03:03:14,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:14,712 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:03:14,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:14,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:14,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1048124481, now seen corresponding path program 1 times [2023-08-27 03:03:14,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:14,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276468983] [2023-08-27 03:03:14,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:14,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:14,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:14,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:14,763 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:14,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:14,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-27 03:03:14,764 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:14,764 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:14,764 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:14,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-27 03:03:14,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:14,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:15,601 INFO L124 PetriNetUnfolderBase]: 169/1579 cut-off events. [2023-08-27 03:03:15,601 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:03:15,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1579 events. 169/1579 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 7769 event pairs, 0 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 1764. Up to 44 conditions per place. [2023-08-27 03:03:15,691 INFO L82 GeneralOperation]: Start removeDead. Operand has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:15,728 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:15,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:15,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:15,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:15,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1224 places, 1329 transitions, 3183 flow [2023-08-27 03:03:16,424 INFO L124 PetriNetUnfolderBase]: 169/1579 cut-off events. [2023-08-27 03:03:16,424 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:03:16,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1579 events. 169/1579 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 7769 event pairs, 0 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 1764. Up to 44 conditions per place. [2023-08-27 03:03:16,800 INFO L119 LiptonReduction]: Number of co-enabled transitions 1621746 [2023-08-27 03:03:37,385 INFO L134 LiptonReduction]: Checked pairs total: 6741756 [2023-08-27 03:03:37,385 INFO L136 LiptonReduction]: Total number of compositions: 1243 [2023-08-27 03:03:37,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:03:37,387 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:03:37,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:03:37,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:03:37,549 INFO L124 PetriNetUnfolderBase]: 132/742 cut-off events. [2023-08-27 03:03:37,549 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-27 03:03:37,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:03:37,549 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:03:37,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:03:37,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:03:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1497019002, now seen corresponding path program 1 times [2023-08-27 03:03:37,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:03:37,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092866553] [2023-08-27 03:03:37,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:03:37,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:03:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:37,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:03:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:03:37,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:03:37,607 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:03:37,607 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:03:37,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-27 03:03:37,607 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:03:37,608 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:03:37,608 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:03:37,608 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-27 03:03:37,740 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:03:37,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:38,568 INFO L124 PetriNetUnfolderBase]: 177/1653 cut-off events. [2023-08-27 03:03:38,569 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:03:38,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1973 conditions, 1653 events. 177/1653 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 8183 event pairs, 0 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 1862. Up to 46 conditions per place. [2023-08-27 03:03:38,673 INFO L82 GeneralOperation]: Start removeDead. Operand has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:38,704 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:38,705 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:03:38,705 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:38,705 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:38,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1281 places, 1391 transitions, 3354 flow [2023-08-27 03:03:39,507 INFO L124 PetriNetUnfolderBase]: 177/1653 cut-off events. [2023-08-27 03:03:39,507 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:03:39,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1973 conditions, 1653 events. 177/1653 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 8183 event pairs, 0 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 1862. Up to 46 conditions per place. [2023-08-27 03:03:39,942 INFO L119 LiptonReduction]: Number of co-enabled transitions 1782176 [2023-08-27 03:04:02,325 INFO L134 LiptonReduction]: Checked pairs total: 7432988 [2023-08-27 03:04:02,326 INFO L136 LiptonReduction]: Total number of compositions: 1312 [2023-08-27 03:04:02,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:02,327 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:02,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:02,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:02,501 INFO L124 PetriNetUnfolderBase]: 138/777 cut-off events. [2023-08-27 03:04:02,502 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-27 03:04:02,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:02,502 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:04:02,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:02,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash 27089897, now seen corresponding path program 1 times [2023-08-27 03:04:02,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:02,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142179653] [2023-08-27 03:04:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:02,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:02,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:02,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:02,563 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:02,563 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:02,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-27 03:04:02,563 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:02,564 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:02,564 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:02,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-27 03:04:02,675 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:02,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:03,512 INFO L124 PetriNetUnfolderBase]: 185/1727 cut-off events. [2023-08-27 03:04:03,512 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:03,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1727 events. 185/1727 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 8560 event pairs, 0 based on Foata normal form. 0/1472 useless extension candidates. Maximal degree in co-relation 1961. Up to 48 conditions per place. [2023-08-27 03:04:03,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:03,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:03,651 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:03,651 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:03,651 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:03,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1338 places, 1453 transitions, 3527 flow [2023-08-27 03:04:04,480 INFO L124 PetriNetUnfolderBase]: 185/1727 cut-off events. [2023-08-27 03:04:04,480 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:04,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1727 events. 185/1727 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 8560 event pairs, 0 based on Foata normal form. 0/1472 useless extension candidates. Maximal degree in co-relation 1961. Up to 48 conditions per place. [2023-08-27 03:04:04,957 INFO L119 LiptonReduction]: Number of co-enabled transitions 1950170 [2023-08-27 03:04:28,019 INFO L134 LiptonReduction]: Checked pairs total: 8158112 [2023-08-27 03:04:28,020 INFO L136 LiptonReduction]: Total number of compositions: 1360 [2023-08-27 03:04:28,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:28,021 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:28,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:28,206 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:28,206 INFO L124 PetriNetUnfolderBase]: 149/822 cut-off events. [2023-08-27 03:04:28,206 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-27 03:04:28,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:28,206 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:04:28,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:28,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash 783094872, now seen corresponding path program 1 times [2023-08-27 03:04:28,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:28,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241429857] [2023-08-27 03:04:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:28,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:28,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:28,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:28,268 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:28,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:28,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-27 03:04:28,269 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:28,269 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:28,269 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:28,269 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-27 03:04:28,390 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:28,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:29,244 INFO L124 PetriNetUnfolderBase]: 193/1801 cut-off events. [2023-08-27 03:04:29,244 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:04:29,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 1801 events. 193/1801 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 8892 event pairs, 0 based on Foata normal form. 0/1535 useless extension candidates. Maximal degree in co-relation 2061. Up to 50 conditions per place. [2023-08-27 03:04:29,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:29,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:29,394 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:29,394 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:29,394 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:29,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1395 places, 1515 transitions, 3702 flow [2023-08-27 03:04:30,227 INFO L124 PetriNetUnfolderBase]: 193/1801 cut-off events. [2023-08-27 03:04:30,227 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:04:30,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 1801 events. 193/1801 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 8892 event pairs, 0 based on Foata normal form. 0/1535 useless extension candidates. Maximal degree in co-relation 2061. Up to 50 conditions per place. [2023-08-27 03:04:30,706 INFO L119 LiptonReduction]: Number of co-enabled transitions 2125728 [2023-08-27 03:04:54,790 INFO L134 LiptonReduction]: Checked pairs total: 8638742 [2023-08-27 03:04:54,791 INFO L136 LiptonReduction]: Total number of compositions: 1408 [2023-08-27 03:04:54,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:04:54,792 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:04:54,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:04:54,987 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:04:54,987 INFO L124 PetriNetUnfolderBase]: 149/844 cut-off events. [2023-08-27 03:04:54,987 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-27 03:04:54,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:04:54,987 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:04:54,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:04:54,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:04:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1518366448, now seen corresponding path program 1 times [2023-08-27 03:04:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:04:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364938577] [2023-08-27 03:04:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:04:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:04:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:55,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:04:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:04:55,054 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:04:55,054 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:04:55,054 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:04:55,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-27 03:04:55,055 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:04:55,055 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:04:55,055 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:04:55,055 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-27 03:04:55,168 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:04:55,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:56,192 INFO L124 PetriNetUnfolderBase]: 201/1875 cut-off events. [2023-08-27 03:04:56,192 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:04:56,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 1875 events. 201/1875 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 9312 event pairs, 0 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 2162. Up to 52 conditions per place. [2023-08-27 03:04:56,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:56,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:56,301 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:04:56,301 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:56,301 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:56,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1452 places, 1577 transitions, 3879 flow [2023-08-27 03:04:57,214 INFO L124 PetriNetUnfolderBase]: 201/1875 cut-off events. [2023-08-27 03:04:57,214 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:04:57,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 1875 events. 201/1875 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 9312 event pairs, 0 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 2162. Up to 52 conditions per place. [2023-08-27 03:04:57,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 2308850 [2023-08-27 03:05:23,326 INFO L134 LiptonReduction]: Checked pairs total: 9589118 [2023-08-27 03:05:23,326 INFO L136 LiptonReduction]: Total number of compositions: 1476 [2023-08-27 03:05:23,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:05:23,328 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:05:23,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:05:23,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:05:23,542 INFO L124 PetriNetUnfolderBase]: 155/879 cut-off events. [2023-08-27 03:05:23,542 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-27 03:05:23,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:05:23,542 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:05:23,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:05:23,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:05:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1923267263, now seen corresponding path program 1 times [2023-08-27 03:05:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:05:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392947513] [2023-08-27 03:05:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:05:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:05:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:23,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:05:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:23,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:05:23,611 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:05:23,612 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:05:23,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-27 03:05:23,612 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:05:23,612 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:05:23,612 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:05:23,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-27 03:05:23,732 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:05:23,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:24,793 INFO L124 PetriNetUnfolderBase]: 209/1949 cut-off events. [2023-08-27 03:05:24,793 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:05:24,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 1949 events. 209/1949 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 9643 event pairs, 0 based on Foata normal form. 0/1661 useless extension candidates. Maximal degree in co-relation 2264. Up to 54 conditions per place. [2023-08-27 03:05:24,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:24,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:24,937 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:05:24,937 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:24,937 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:24,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1509 places, 1639 transitions, 4058 flow [2023-08-27 03:05:26,021 INFO L124 PetriNetUnfolderBase]: 209/1949 cut-off events. [2023-08-27 03:05:26,021 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:05:26,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 1949 events. 209/1949 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 9643 event pairs, 0 based on Foata normal form. 0/1661 useless extension candidates. Maximal degree in co-relation 2264. Up to 54 conditions per place. [2023-08-27 03:05:26,542 INFO L119 LiptonReduction]: Number of co-enabled transitions 2499536 [2023-08-27 03:05:53,089 INFO L134 LiptonReduction]: Checked pairs total: 10526473 [2023-08-27 03:05:53,089 INFO L136 LiptonReduction]: Total number of compositions: 1556 [2023-08-27 03:05:53,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:05:53,091 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:05:53,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:05:53,327 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:05:53,327 INFO L124 PetriNetUnfolderBase]: 169/930 cut-off events. [2023-08-27 03:05:53,327 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-27 03:05:53,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:05:53,327 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:05:53,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:05:53,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:05:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash -642718297, now seen corresponding path program 1 times [2023-08-27 03:05:53,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:05:53,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755209578] [2023-08-27 03:05:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:05:53,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:05:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:53,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:05:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:05:53,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:05:53,398 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:05:53,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:05:53,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-27 03:05:53,398 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:05:53,398 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:05:53,398 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:05:53,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-27 03:05:53,536 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:05:53,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:54,708 INFO L124 PetriNetUnfolderBase]: 217/2023 cut-off events. [2023-08-27 03:05:54,708 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:05:54,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2483 conditions, 2023 events. 217/2023 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 10018 event pairs, 0 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 2367. Up to 56 conditions per place. [2023-08-27 03:05:54,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:54,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:54,893 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:05:54,893 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:54,893 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:54,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1566 places, 1701 transitions, 4239 flow [2023-08-27 03:05:56,057 INFO L124 PetriNetUnfolderBase]: 217/2023 cut-off events. [2023-08-27 03:05:56,057 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:05:56,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2483 conditions, 2023 events. 217/2023 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 10018 event pairs, 0 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 2367. Up to 56 conditions per place. [2023-08-27 03:05:57,190 INFO L119 LiptonReduction]: Number of co-enabled transitions 2697786 [2023-08-27 03:06:25,399 INFO L134 LiptonReduction]: Checked pairs total: 11010956 [2023-08-27 03:06:25,399 INFO L136 LiptonReduction]: Total number of compositions: 1591 [2023-08-27 03:06:25,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:06:25,400 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:06:25,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:06:25,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:06:25,642 INFO L124 PetriNetUnfolderBase]: 164/944 cut-off events. [2023-08-27 03:06:25,642 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-27 03:06:25,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:06:25,642 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:06:25,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:06:25,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:06:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1120035993, now seen corresponding path program 1 times [2023-08-27 03:06:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:06:25,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051442784] [2023-08-27 03:06:25,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:06:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:06:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:25,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:06:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:25,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:06:25,727 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:06:25,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:06:25,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-27 03:06:25,727 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:06:25,727 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:06:25,727 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:06:25,727 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-27 03:06:25,932 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:06:25,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:27,521 INFO L124 PetriNetUnfolderBase]: 225/2097 cut-off events. [2023-08-27 03:06:27,521 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:27,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 2097 events. 225/2097 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 10261 event pairs, 0 based on Foata normal form. 0/1787 useless extension candidates. Maximal degree in co-relation 2471. Up to 58 conditions per place. [2023-08-27 03:06:27,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:27,692 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:27,692 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:06:27,692 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:27,692 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:27,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1623 places, 1763 transitions, 4422 flow [2023-08-27 03:06:29,059 INFO L124 PetriNetUnfolderBase]: 225/2097 cut-off events. [2023-08-27 03:06:29,059 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:29,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 2097 events. 225/2097 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 10261 event pairs, 0 based on Foata normal form. 0/1787 useless extension candidates. Maximal degree in co-relation 2471. Up to 58 conditions per place. [2023-08-27 03:06:29,747 INFO L119 LiptonReduction]: Number of co-enabled transitions 2903600 [2023-08-27 03:06:58,569 INFO L134 LiptonReduction]: Checked pairs total: 11976846 [2023-08-27 03:06:58,570 INFO L136 LiptonReduction]: Total number of compositions: 1645 [2023-08-27 03:06:58,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:06:58,571 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:06:58,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:06:58,839 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:06:58,840 INFO L124 PetriNetUnfolderBase]: 173/984 cut-off events. [2023-08-27 03:06:58,840 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-27 03:06:58,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:06:58,840 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:06:58,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:06:58,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:06:58,840 INFO L85 PathProgramCache]: Analyzing trace with hash -914904347, now seen corresponding path program 1 times [2023-08-27 03:06:58,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:06:58,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540443006] [2023-08-27 03:06:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:06:58,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:06:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:58,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:06:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:06:58,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:06:58,913 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:06:58,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:06:58,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-27 03:06:58,914 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:06:58,914 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:06:58,914 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:06:58,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-27 03:06:59,049 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:06:59,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:00,771 INFO L124 PetriNetUnfolderBase]: 233/2171 cut-off events. [2023-08-27 03:07:00,771 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:07:00,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2171 events. 233/2171 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 10635 event pairs, 0 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 2576. Up to 60 conditions per place. [2023-08-27 03:07:00,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:00,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:00,915 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:07:00,915 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:00,915 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:00,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1680 places, 1825 transitions, 4607 flow [2023-08-27 03:07:02,371 INFO L124 PetriNetUnfolderBase]: 233/2171 cut-off events. [2023-08-27 03:07:02,371 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:07:02,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2694 conditions, 2171 events. 233/2171 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 10635 event pairs, 0 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 2576. Up to 60 conditions per place. [2023-08-27 03:07:03,164 INFO L119 LiptonReduction]: Number of co-enabled transitions 3116978 [2023-08-27 03:07:32,998 INFO L134 LiptonReduction]: Checked pairs total: 12823102 [2023-08-27 03:07:32,998 INFO L136 LiptonReduction]: Total number of compositions: 1705 [2023-08-27 03:07:32,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:07:32,999 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:07:32,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:07:33,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:07:33,346 INFO L124 PetriNetUnfolderBase]: 179/1019 cut-off events. [2023-08-27 03:07:33,346 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-27 03:07:33,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:07:33,346 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:07:33,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:07:33,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:07:33,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1570895769, now seen corresponding path program 1 times [2023-08-27 03:07:33,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:07:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276939611] [2023-08-27 03:07:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:07:33,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:07:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:33,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:07:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:07:33,428 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:07:33,428 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:07:33,428 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:07:33,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-27 03:07:33,428 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:07:33,429 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:07:33,429 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:07:33,429 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-27 03:07:33,565 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:07:33,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:35,146 INFO L124 PetriNetUnfolderBase]: 241/2245 cut-off events. [2023-08-27 03:07:35,146 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:07:35,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 2245 events. 241/2245 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11007 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2682. Up to 62 conditions per place. [2023-08-27 03:07:35,271 INFO L82 GeneralOperation]: Start removeDead. Operand has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:35,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:35,328 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:07:35,328 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:35,328 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:35,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1737 places, 1887 transitions, 4794 flow [2023-08-27 03:07:37,517 INFO L124 PetriNetUnfolderBase]: 241/2245 cut-off events. [2023-08-27 03:07:37,517 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:07:37,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2801 conditions, 2245 events. 241/2245 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11007 event pairs, 0 based on Foata normal form. 0/1913 useless extension candidates. Maximal degree in co-relation 2682. Up to 62 conditions per place. [2023-08-27 03:07:38,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 3337920 [2023-08-27 03:08:09,806 INFO L134 LiptonReduction]: Checked pairs total: 13804250 [2023-08-27 03:08:09,807 INFO L136 LiptonReduction]: Total number of compositions: 1752 [2023-08-27 03:08:09,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:08:09,808 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:08:09,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:08:10,185 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:08:10,186 INFO L124 PetriNetUnfolderBase]: 187/1057 cut-off events. [2023-08-27 03:08:10,186 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-27 03:08:10,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:08:10,186 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:08:10,186 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:08:10,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:08:10,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1291654563, now seen corresponding path program 1 times [2023-08-27 03:08:10,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:08:10,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668599789] [2023-08-27 03:08:10,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:08:10,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:08:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:10,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:08:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:10,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:08:10,274 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:08:10,274 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:08:10,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-27 03:08:10,274 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:08:10,274 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:08:10,274 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:08:10,274 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-27 03:08:10,423 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:08:10,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:12,233 INFO L124 PetriNetUnfolderBase]: 249/2319 cut-off events. [2023-08-27 03:08:12,233 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:08:12,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2909 conditions, 2319 events. 249/2319 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11387 event pairs, 0 based on Foata normal form. 0/1976 useless extension candidates. Maximal degree in co-relation 2789. Up to 64 conditions per place. [2023-08-27 03:08:12,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:12,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:12,415 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:08:12,415 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:12,415 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:12,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1794 places, 1949 transitions, 4983 flow [2023-08-27 03:08:14,254 INFO L124 PetriNetUnfolderBase]: 249/2319 cut-off events. [2023-08-27 03:08:14,254 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:08:14,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2909 conditions, 2319 events. 249/2319 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11387 event pairs, 0 based on Foata normal form. 0/1976 useless extension candidates. Maximal degree in co-relation 2789. Up to 64 conditions per place. [2023-08-27 03:08:15,139 INFO L119 LiptonReduction]: Number of co-enabled transitions 3566426 [2023-08-27 03:08:47,569 INFO L134 LiptonReduction]: Checked pairs total: 14815051 [2023-08-27 03:08:47,569 INFO L136 LiptonReduction]: Total number of compositions: 1833 [2023-08-27 03:08:47,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:08:47,571 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:08:47,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:08:47,934 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:08:47,934 INFO L124 PetriNetUnfolderBase]: 201/1108 cut-off events. [2023-08-27 03:08:47,934 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-27 03:08:47,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:08:47,934 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:08:47,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:08:47,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:08:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash 762878942, now seen corresponding path program 1 times [2023-08-27 03:08:47,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:08:47,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410200867] [2023-08-27 03:08:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:08:47,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:08:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:47,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:08:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:08:48,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:08:48,014 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:08:48,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:08:48,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-27 03:08:48,015 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:08:48,015 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:08:48,015 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:08:48,015 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-27 03:08:48,240 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:08:48,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:50,198 INFO L124 PetriNetUnfolderBase]: 257/2393 cut-off events. [2023-08-27 03:08:50,198 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:08:50,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2393 events. 257/2393 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11749 event pairs, 0 based on Foata normal form. 0/2039 useless extension candidates. Maximal degree in co-relation 2897. Up to 66 conditions per place. [2023-08-27 03:08:50,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:50,360 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:50,360 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:08:50,360 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:50,360 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:50,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1851 places, 2011 transitions, 5174 flow [2023-08-27 03:08:52,211 INFO L124 PetriNetUnfolderBase]: 257/2393 cut-off events. [2023-08-27 03:08:52,211 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:08:52,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2393 events. 257/2393 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11749 event pairs, 0 based on Foata normal form. 0/2039 useless extension candidates. Maximal degree in co-relation 2897. Up to 66 conditions per place. [2023-08-27 03:08:53,054 INFO L119 LiptonReduction]: Number of co-enabled transitions 3802496 [2023-08-27 03:09:28,656 INFO L134 LiptonReduction]: Checked pairs total: 15559502 [2023-08-27 03:09:28,656 INFO L136 LiptonReduction]: Total number of compositions: 1896 [2023-08-27 03:09:28,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:09:28,658 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:09:28,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:09:29,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:09:29,135 INFO L124 PetriNetUnfolderBase]: 197/1124 cut-off events. [2023-08-27 03:09:29,135 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-27 03:09:29,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:09:29,135 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:09:29,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:09:29,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:09:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1177966186, now seen corresponding path program 1 times [2023-08-27 03:09:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:09:29,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936115126] [2023-08-27 03:09:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:09:29,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:09:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:29,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:09:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:09:29,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:09:29,228 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:09:29,228 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:09:29,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-27 03:09:29,229 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:09:29,229 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:09:29,229 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:09:29,229 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-27 03:09:29,388 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:09:29,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:31,388 INFO L124 PetriNetUnfolderBase]: 265/2467 cut-off events. [2023-08-27 03:09:31,388 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:09:31,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3128 conditions, 2467 events. 265/2467 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 12131 event pairs, 0 based on Foata normal form. 0/2102 useless extension candidates. Maximal degree in co-relation 3006. Up to 68 conditions per place. [2023-08-27 03:09:31,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:31,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:31,619 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:09:31,619 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:31,619 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:31,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1908 places, 2073 transitions, 5367 flow [2023-08-27 03:09:33,800 INFO L124 PetriNetUnfolderBase]: 265/2467 cut-off events. [2023-08-27 03:09:33,801 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:09:33,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3128 conditions, 2467 events. 265/2467 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 12131 event pairs, 0 based on Foata normal form. 0/2102 useless extension candidates. Maximal degree in co-relation 3006. Up to 68 conditions per place. [2023-08-27 03:09:34,795 INFO L119 LiptonReduction]: Number of co-enabled transitions 4046130 [2023-08-27 03:10:12,561 INFO L134 LiptonReduction]: Checked pairs total: 16907152 [2023-08-27 03:10:12,561 INFO L136 LiptonReduction]: Total number of compositions: 1936 [2023-08-27 03:10:12,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:10:12,563 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:10:12,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:10:13,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:10:13,071 INFO L124 PetriNetUnfolderBase]: 213/1179 cut-off events. [2023-08-27 03:10:13,071 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-27 03:10:13,071 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:10:13,071 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:10:13,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:10:13,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:10:13,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1501023761, now seen corresponding path program 1 times [2023-08-27 03:10:13,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:10:13,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691748763] [2023-08-27 03:10:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:10:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:10:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:13,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:10:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:13,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:10:13,170 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:10:13,170 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:10:13,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-27 03:10:13,170 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:10:13,170 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:10:13,170 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:10:13,170 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-27 03:10:13,321 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:10:13,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:15,690 INFO L124 PetriNetUnfolderBase]: 273/2541 cut-off events. [2023-08-27 03:10:15,690 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:10:15,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3239 conditions, 2541 events. 273/2541 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 12523 event pairs, 0 based on Foata normal form. 0/2165 useless extension candidates. Maximal degree in co-relation 3116. Up to 70 conditions per place. [2023-08-27 03:10:15,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:15,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:15,886 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:10:15,886 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:15,886 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:15,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1965 places, 2135 transitions, 5562 flow [2023-08-27 03:10:18,046 INFO L124 PetriNetUnfolderBase]: 273/2541 cut-off events. [2023-08-27 03:10:18,046 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:10:18,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3239 conditions, 2541 events. 273/2541 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 12523 event pairs, 0 based on Foata normal form. 0/2165 useless extension candidates. Maximal degree in co-relation 3116. Up to 70 conditions per place. [2023-08-27 03:10:19,028 INFO L119 LiptonReduction]: Number of co-enabled transitions 4297328 [2023-08-27 03:10:57,881 INFO L134 LiptonReduction]: Checked pairs total: 18001993 [2023-08-27 03:10:57,881 INFO L136 LiptonReduction]: Total number of compositions: 2027 [2023-08-27 03:10:57,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-27 03:10:57,883 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;@3c54525e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:10:57,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-27 03:10:58,361 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:10:58,361 INFO L124 PetriNetUnfolderBase]: 218/1210 cut-off events. [2023-08-27 03:10:58,361 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-27 03:10:58,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:10:58,361 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-27 03:10:58,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-27 03:10:58,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:10:58,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1867058410, now seen corresponding path program 1 times [2023-08-27 03:10:58,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:10:58,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138595792] [2023-08-27 03:10:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:10:58,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:10:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:58,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:10:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:10:58,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:10:58,453 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:10:58,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-27 03:10:58,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-27 03:10:58,453 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:10:58,453 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-27 03:10:58,453 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-27 03:10:58,453 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-27 03:10:58,702 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:10:58,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2022 places, 2197 transitions, 5759 flow Received shutdown request... [2023-08-27 03:10:59,033 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-27 03:10:59,047 FATAL L? ?]: A wrapped exception occured: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction threw an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) ... 18 more [2023-08-27 03:10:59,049 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.(PetriNetUnfolderBase.java:123) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:72) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-08-27 03:10:59,053 INFO L158 Benchmark]: Toolchain (without parser) took 689572.23ms. Allocated memory was 413.1MB in the beginning and 7.7GB in the end (delta: 7.3GB). Free memory was 387.9MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. [2023-08-27 03:10:59,053 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 413.1MB. Free memory was 389.6MB in the beginning and 389.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:10:59,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.93ms. Allocated memory is still 413.1MB. Free memory was 387.9MB in the beginning and 367.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 03:10:59,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.87ms. Allocated memory is still 413.1MB. Free memory was 367.9MB in the beginning and 365.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:10:59,054 INFO L158 Benchmark]: Boogie Preprocessor took 33.55ms. Allocated memory is still 413.1MB. Free memory was 365.5MB in the beginning and 364.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:10:59,054 INFO L158 Benchmark]: RCFGBuilder took 520.00ms. Allocated memory is still 413.1MB. Free memory was 364.0MB in the beginning and 340.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 03:10:59,055 INFO L158 Benchmark]: TraceAbstraction took 688530.15ms. Allocated memory was 413.1MB in the beginning and 7.7GB in the end (delta: 7.3GB). Free memory was 339.6MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 2.5GB. Max. memory is 16.0GB. [2023-08-27 03:10:59,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 413.1MB. Free memory was 389.6MB in the beginning and 389.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 444.93ms. Allocated memory is still 413.1MB. Free memory was 387.9MB in the beginning and 367.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.87ms. Allocated memory is still 413.1MB. Free memory was 367.9MB in the beginning and 365.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.55ms. Allocated memory is still 413.1MB. Free memory was 365.5MB in the beginning and 364.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 520.00ms. Allocated memory is still 413.1MB. Free memory was 364.0MB in the beginning and 340.3MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 688530.15ms. Allocated memory was 413.1MB in the beginning and 7.7GB in the end (delta: 7.3GB). Free memory was 339.6MB in the beginning and 5.1GB in the end (delta: -4.7GB). Peak memory consumption was 2.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 254]: Unsoundness Warning unspecified type, defaulting to int C: short [254] - GenericResultAtLocation [Line: 689]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [689] - GenericResultAtLocation [Line: 700]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [700] - GenericResultAtLocation [Line: 701]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [701] - GenericResultAtLocation [Line: 702]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [702] - GenericResultAtLocation [Line: 703]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [703] - GenericResultAtLocation [Line: 716]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [716] - GenericResultAtLocation [Line: 717]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [717] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 84 PlacesBefore, 12 PlacesAfterwards, 89 TransitionsBefore, 9 TransitionsAfterwards, 1586 CoEnabledTransitionPairs, 8 FixpointIterations, 13 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 8 ChoiceCompositions, 127 TotalNumberOfCompositions, 1644 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1644, independent: 1644, independent conditional: 0, independent unconditional: 1644, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 904, independent: 904, independent conditional: 0, independent unconditional: 904, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1644, independent: 740, independent conditional: 0, independent unconditional: 740, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 904, unknown conditional: 0, unknown unconditional: 904] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 3, Positive conditional cache size: 0, Positive unconditional cache size: 3, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 141 PlacesBefore, 62 PlacesAfterwards, 151 TransitionsBefore, 70 TransitionsAfterwards, 10736 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 2 ChoiceCompositions, 142 TotalNumberOfCompositions, 38365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16543, independent: 15931, independent conditional: 0, independent unconditional: 15931, dependent: 612, dependent conditional: 0, dependent unconditional: 612, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6203, independent: 6078, independent conditional: 0, independent unconditional: 6078, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 16543, independent: 9853, independent conditional: 0, independent unconditional: 9853, dependent: 487, dependent conditional: 0, dependent unconditional: 487, unknown: 6203, unknown conditional: 0, unknown unconditional: 6203] , Statistics on independence cache: Total cache size (in pairs): 639, Positive cache size: 581, Positive conditional cache size: 0, Positive unconditional cache size: 581, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 198 PlacesBefore, 88 PlacesAfterwards, 213 TransitionsBefore, 99 TransitionsAfterwards, 27450 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 71 ConcurrentYvCompositions, 4 ChoiceCompositions, 196 TotalNumberOfCompositions, 102446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35669, independent: 34753, independent conditional: 0, independent unconditional: 34753, dependent: 916, dependent conditional: 0, dependent unconditional: 916, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15679, independent: 15450, independent conditional: 0, independent unconditional: 15450, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 35669, independent: 19303, independent conditional: 0, independent unconditional: 19303, dependent: 687, dependent conditional: 0, dependent unconditional: 687, unknown: 15679, unknown conditional: 0, unknown unconditional: 15679] , Statistics on independence cache: Total cache size (in pairs): 1095, Positive cache size: 1009, Positive conditional cache size: 0, Positive unconditional cache size: 1009, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 255 PlacesBefore, 118 PlacesAfterwards, 275 TransitionsBefore, 136 TransitionsAfterwards, 51728 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 140 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 102 ConcurrentYvCompositions, 2 ChoiceCompositions, 257 TotalNumberOfCompositions, 200982 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51278, independent: 50054, independent conditional: 0, independent unconditional: 50054, dependent: 1224, dependent conditional: 0, dependent unconditional: 1224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 27956, independent: 27736, independent conditional: 0, independent unconditional: 27736, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 51278, independent: 22318, independent conditional: 0, independent unconditional: 22318, dependent: 1004, dependent conditional: 0, dependent unconditional: 1004, unknown: 27956, unknown conditional: 0, unknown unconditional: 27956] , Statistics on independence cache: Total cache size (in pairs): 926, Positive cache size: 804, Positive conditional cache size: 0, Positive unconditional cache size: 804, Negative cache size: 122, Negative conditional cache size: 0, Negative unconditional cache size: 122, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 312 PlacesBefore, 141 PlacesAfterwards, 337 TransitionsBefore, 159 TransitionsAfterwards, 83570 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 172 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 115 ConcurrentYvCompositions, 7 ChoiceCompositions, 307 TotalNumberOfCompositions, 320430 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97928, independent: 96411, independent conditional: 0, independent unconditional: 96411, dependent: 1517, dependent conditional: 0, dependent unconditional: 1517, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48396, independent: 47997, independent conditional: 0, independent unconditional: 47997, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 97928, independent: 48414, independent conditional: 0, independent unconditional: 48414, dependent: 1118, dependent conditional: 0, dependent unconditional: 1118, unknown: 48396, unknown conditional: 0, unknown unconditional: 48396] , Statistics on independence cache: Total cache size (in pairs): 3440, Positive cache size: 3280, Positive conditional cache size: 0, Positive unconditional cache size: 3280, Negative cache size: 160, Negative conditional cache size: 0, Negative unconditional cache size: 160, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 369 PlacesBefore, 172 PlacesAfterwards, 399 TransitionsBefore, 198 TransitionsAfterwards, 122976 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 196 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 154 ConcurrentYvCompositions, 4 ChoiceCompositions, 367 TotalNumberOfCompositions, 505673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118762, independent: 116855, independent conditional: 0, independent unconditional: 116855, dependent: 1907, dependent conditional: 0, dependent unconditional: 1907, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 65955, independent: 65592, independent conditional: 0, independent unconditional: 65592, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 118762, independent: 51263, independent conditional: 0, independent unconditional: 51263, dependent: 1544, dependent conditional: 0, dependent unconditional: 1544, unknown: 65955, unknown conditional: 0, unknown unconditional: 65955] , Statistics on independence cache: Total cache size (in pairs): 2114, Positive cache size: 1933, Positive conditional cache size: 0, Positive unconditional cache size: 1933, Negative cache size: 181, Negative conditional cache size: 0, Negative unconditional cache size: 181, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 426 PlacesBefore, 201 PlacesAfterwards, 461 TransitionsBefore, 233 TransitionsAfterwards, 169946 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 231 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 179 ConcurrentYvCompositions, 3 ChoiceCompositions, 426 TotalNumberOfCompositions, 700605 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 249572, independent: 247347, independent conditional: 0, independent unconditional: 247347, dependent: 2225, dependent conditional: 0, dependent unconditional: 2225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 97262, independent: 96732, independent conditional: 0, independent unconditional: 96732, dependent: 530, dependent conditional: 0, dependent unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 249572, independent: 150615, independent conditional: 0, independent unconditional: 150615, dependent: 1695, dependent conditional: 0, dependent unconditional: 1695, unknown: 97262, unknown conditional: 0, unknown unconditional: 97262] , Statistics on independence cache: Total cache size (in pairs): 9749, Positive cache size: 9509, Positive conditional cache size: 0, Positive unconditional cache size: 9509, Negative cache size: 240, Negative conditional cache size: 0, Negative unconditional cache size: 240, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 483 PlacesBefore, 228 PlacesAfterwards, 523 TransitionsBefore, 264 TransitionsAfterwards, 224480 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 201 ConcurrentYvCompositions, 4 ChoiceCompositions, 495 TotalNumberOfCompositions, 921043 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 322744, independent: 320242, independent conditional: 0, independent unconditional: 320242, dependent: 2502, dependent conditional: 0, dependent unconditional: 2502, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 130435, independent: 129770, independent conditional: 0, independent unconditional: 129770, dependent: 665, dependent conditional: 0, dependent unconditional: 665, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 322744, independent: 190472, independent conditional: 0, independent unconditional: 190472, dependent: 1837, dependent conditional: 0, dependent unconditional: 1837, unknown: 130435, unknown conditional: 0, unknown unconditional: 130435] , Statistics on independence cache: Total cache size (in pairs): 12529, Positive cache size: 12254, Positive conditional cache size: 0, Positive unconditional cache size: 12254, Negative cache size: 275, Negative conditional cache size: 0, Negative unconditional cache size: 275, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 540 PlacesBefore, 255 PlacesAfterwards, 585 TransitionsBefore, 295 TransitionsAfterwards, 286578 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 294 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 230 ConcurrentYvCompositions, 5 ChoiceCompositions, 542 TotalNumberOfCompositions, 1170242 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 294001, independent: 291179, independent conditional: 0, independent unconditional: 291179, dependent: 2822, dependent conditional: 0, dependent unconditional: 2822, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 154971, independent: 154378, independent conditional: 0, independent unconditional: 154378, dependent: 593, dependent conditional: 0, dependent unconditional: 593, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 294001, independent: 136801, independent conditional: 0, independent unconditional: 136801, dependent: 2229, dependent conditional: 0, dependent unconditional: 2229, unknown: 154971, unknown conditional: 0, unknown unconditional: 154971] , Statistics on independence cache: Total cache size (in pairs): 4880, Positive cache size: 4603, Positive conditional cache size: 0, Positive unconditional cache size: 4603, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6s, 597 PlacesBefore, 282 PlacesAfterwards, 647 TransitionsBefore, 326 TransitionsAfterwards, 356240 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 334 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 6 ChoiceCompositions, 605 TotalNumberOfCompositions, 1447292 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 334713, independent: 331606, independent conditional: 0, independent unconditional: 331606, dependent: 3107, dependent conditional: 0, dependent unconditional: 3107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 191930, independent: 191280, independent conditional: 0, independent unconditional: 191280, dependent: 650, dependent conditional: 0, dependent unconditional: 650, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 334713, independent: 140326, independent conditional: 0, independent unconditional: 140326, dependent: 2457, dependent conditional: 0, dependent unconditional: 2457, unknown: 191930, unknown conditional: 0, unknown unconditional: 191930] , Statistics on independence cache: Total cache size (in pairs): 4740, Positive cache size: 4435, Positive conditional cache size: 0, Positive unconditional cache size: 4435, Negative cache size: 305, Negative conditional cache size: 0, Negative unconditional cache size: 305, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 654 PlacesBefore, 310 PlacesAfterwards, 709 TransitionsBefore, 359 TransitionsAfterwards, 433466 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 367 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 274 ConcurrentYvCompositions, 6 ChoiceCompositions, 660 TotalNumberOfCompositions, 1755203 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 386718, independent: 383333, independent conditional: 0, independent unconditional: 383333, dependent: 3385, dependent conditional: 0, dependent unconditional: 3385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 230767, independent: 230087, independent conditional: 0, independent unconditional: 230087, dependent: 680, dependent conditional: 0, dependent unconditional: 680, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 386718, independent: 153246, independent conditional: 0, independent unconditional: 153246, dependent: 2705, dependent conditional: 0, dependent unconditional: 2705, unknown: 230767, unknown conditional: 0, unknown unconditional: 230767] , Statistics on independence cache: Total cache size (in pairs): 4121, Positive cache size: 3784, Positive conditional cache size: 0, Positive unconditional cache size: 3784, Negative cache size: 337, Negative conditional cache size: 0, Negative unconditional cache size: 337, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 711 PlacesBefore, 334 PlacesAfterwards, 771 TransitionsBefore, 384 TransitionsAfterwards, 518256 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 412 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 286 ConcurrentYvCompositions, 10 ChoiceCompositions, 721 TotalNumberOfCompositions, 2109745 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 454660, independent: 450947, independent conditional: 0, independent unconditional: 450947, dependent: 3713, dependent conditional: 0, dependent unconditional: 3713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 274875, independent: 274242, independent conditional: 0, independent unconditional: 274242, dependent: 633, dependent conditional: 0, dependent unconditional: 633, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 454660, independent: 176705, independent conditional: 0, independent unconditional: 176705, dependent: 3080, dependent conditional: 0, dependent unconditional: 3080, unknown: 274875, unknown conditional: 0, unknown unconditional: 274875] , Statistics on independence cache: Total cache size (in pairs): 3520, Positive cache size: 3158, Positive conditional cache size: 0, Positive unconditional cache size: 3158, Negative cache size: 362, Negative conditional cache size: 0, Negative unconditional cache size: 362, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 768 PlacesBefore, 366 PlacesAfterwards, 833 TransitionsBefore, 425 TransitionsAfterwards, 610610 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 431 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 331 ConcurrentYvCompositions, 6 ChoiceCompositions, 781 TotalNumberOfCompositions, 2535370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 747873, independent: 743795, independent conditional: 0, independent unconditional: 743795, dependent: 4078, dependent conditional: 0, dependent unconditional: 4078, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 359735, independent: 358404, independent conditional: 0, independent unconditional: 358404, dependent: 1331, dependent conditional: 0, dependent unconditional: 1331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 747873, independent: 385391, independent conditional: 0, independent unconditional: 385391, dependent: 2747, dependent conditional: 0, dependent unconditional: 2747, unknown: 359735, unknown conditional: 0, unknown unconditional: 359735] , Statistics on independence cache: Total cache size (in pairs): 30599, Positive cache size: 30007, Positive conditional cache size: 0, Positive unconditional cache size: 30007, Negative cache size: 592, Negative conditional cache size: 0, Negative unconditional cache size: 592, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 825 PlacesBefore, 393 PlacesAfterwards, 895 TransitionsBefore, 456 TransitionsAfterwards, 710528 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 473 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 343 ConcurrentYvCompositions, 7 ChoiceCompositions, 836 TotalNumberOfCompositions, 2911110 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 771811, independent: 767459, independent conditional: 0, independent unconditional: 767459, dependent: 4352, dependent conditional: 0, dependent unconditional: 4352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 402683, independent: 401528, independent conditional: 0, independent unconditional: 401528, dependent: 1155, dependent conditional: 0, dependent unconditional: 1155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 771811, independent: 365931, independent conditional: 0, independent unconditional: 365931, dependent: 3197, dependent conditional: 0, dependent unconditional: 3197, unknown: 402683, unknown conditional: 0, unknown unconditional: 402683] , Statistics on independence cache: Total cache size (in pairs): 30239, Positive cache size: 29702, Positive conditional cache size: 0, Positive unconditional cache size: 29702, Negative cache size: 537, Negative conditional cache size: 0, Negative unconditional cache size: 537, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8s, 882 PlacesBefore, 421 PlacesAfterwards, 957 TransitionsBefore, 489 TransitionsAfterwards, 818010 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 495 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 381 ConcurrentYvCompositions, 7 ChoiceCompositions, 896 TotalNumberOfCompositions, 3395895 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 807169, independent: 802471, independent conditional: 0, independent unconditional: 802471, dependent: 4698, dependent conditional: 0, dependent unconditional: 4698, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 453347, independent: 452231, independent conditional: 0, independent unconditional: 452231, dependent: 1116, dependent conditional: 0, dependent unconditional: 1116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 807169, independent: 350240, independent conditional: 0, independent unconditional: 350240, dependent: 3582, dependent conditional: 0, dependent unconditional: 3582, unknown: 453347, unknown conditional: 0, unknown unconditional: 453347] , Statistics on independence cache: Total cache size (in pairs): 22454, Positive cache size: 21865, Positive conditional cache size: 0, Positive unconditional cache size: 21865, Negative cache size: 589, Negative conditional cache size: 0, Negative unconditional cache size: 589, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.7s, 939 PlacesBefore, 447 PlacesAfterwards, 1019 TransitionsBefore, 518 TransitionsAfterwards, 933056 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 527 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 400 ConcurrentYvCompositions, 9 ChoiceCompositions, 949 TotalNumberOfCompositions, 3912462 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 886198, independent: 881119, independent conditional: 0, independent unconditional: 881119, dependent: 5079, dependent conditional: 0, dependent unconditional: 5079, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 509342, independent: 508266, independent conditional: 0, independent unconditional: 508266, dependent: 1076, dependent conditional: 0, dependent unconditional: 1076, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 886198, independent: 372853, independent conditional: 0, independent unconditional: 372853, dependent: 4003, dependent conditional: 0, dependent unconditional: 4003, unknown: 509342, unknown conditional: 0, unknown unconditional: 509342] , Statistics on independence cache: Total cache size (in pairs): 20119, Positive cache size: 19500, Positive conditional cache size: 0, Positive unconditional cache size: 19500, Negative cache size: 619, Negative conditional cache size: 0, Negative unconditional cache size: 619, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.2s, 996 PlacesBefore, 476 PlacesAfterwards, 1081 TransitionsBefore, 553 TransitionsAfterwards, 1055666 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 585 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 420 ConcurrentYvCompositions, 8 ChoiceCompositions, 1026 TotalNumberOfCompositions, 4327310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1082688, independent: 1077447, independent conditional: 0, independent unconditional: 1077447, dependent: 5241, dependent conditional: 0, dependent unconditional: 5241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 592488, independent: 591322, independent conditional: 0, independent unconditional: 591322, dependent: 1166, dependent conditional: 0, dependent unconditional: 1166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1082688, independent: 486125, independent conditional: 0, independent unconditional: 486125, dependent: 4075, dependent conditional: 0, dependent unconditional: 4075, unknown: 592488, unknown conditional: 0, unknown unconditional: 592488] , Statistics on independence cache: Total cache size (in pairs): 35315, Positive cache size: 34658, Positive conditional cache size: 0, Positive unconditional cache size: 34658, Negative cache size: 657, Negative conditional cache size: 0, Negative unconditional cache size: 657, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6s, 1053 PlacesBefore, 505 PlacesAfterwards, 1143 TransitionsBefore, 588 TransitionsAfterwards, 1185840 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 604 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 456 ConcurrentYvCompositions, 7 ChoiceCompositions, 1080 TotalNumberOfCompositions, 4934157 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1271228, independent: 1265589, independent conditional: 0, independent unconditional: 1265589, dependent: 5639, dependent conditional: 0, dependent unconditional: 5639, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 681906, independent: 680522, independent conditional: 0, independent unconditional: 680522, dependent: 1384, dependent conditional: 0, dependent unconditional: 1384, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1271228, independent: 585067, independent conditional: 0, independent unconditional: 585067, dependent: 4255, dependent conditional: 0, dependent unconditional: 4255, unknown: 681906, unknown conditional: 0, unknown unconditional: 681906] , Statistics on independence cache: Total cache size (in pairs): 45113, Positive cache size: 44484, Positive conditional cache size: 0, Positive unconditional cache size: 44484, Negative cache size: 629, Negative conditional cache size: 0, Negative unconditional cache size: 629, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8s, 1110 PlacesBefore, 525 PlacesAfterwards, 1205 TransitionsBefore, 605 TransitionsAfterwards, 1323578 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 646 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 462 ConcurrentYvCompositions, 15 ChoiceCompositions, 1136 TotalNumberOfCompositions, 5432122 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1483395, independent: 1477473, independent conditional: 0, independent unconditional: 1477473, dependent: 5922, dependent conditional: 0, dependent unconditional: 5922, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 759427, independent: 757787, independent conditional: 0, independent unconditional: 757787, dependent: 1640, dependent conditional: 0, dependent unconditional: 1640, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1483395, independent: 719686, independent conditional: 0, independent unconditional: 719686, dependent: 4282, dependent conditional: 0, dependent unconditional: 4282, unknown: 759427, unknown conditional: 0, unknown unconditional: 759427] , Statistics on independence cache: Total cache size (in pairs): 56791, Positive cache size: 56143, Positive conditional cache size: 0, Positive unconditional cache size: 56143, Negative cache size: 648, Negative conditional cache size: 0, Negative unconditional cache size: 648, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.5s, 1167 PlacesBefore, 555 PlacesAfterwards, 1267 TransitionsBefore, 642 TransitionsAfterwards, 1468880 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 679 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 481 ConcurrentYvCompositions, 13 ChoiceCompositions, 1186 TotalNumberOfCompositions, 6083371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1403752, independent: 1397497, independent conditional: 0, independent unconditional: 1397497, dependent: 6255, dependent conditional: 0, dependent unconditional: 6255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 798110, independent: 796521, independent conditional: 0, independent unconditional: 796521, dependent: 1589, dependent conditional: 0, dependent unconditional: 1589, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1403752, independent: 600976, independent conditional: 0, independent unconditional: 600976, dependent: 4666, dependent conditional: 0, dependent unconditional: 4666, unknown: 798110, unknown conditional: 0, unknown unconditional: 798110] , Statistics on independence cache: Total cache size (in pairs): 29928, Positive cache size: 29316, Positive conditional cache size: 0, Positive unconditional cache size: 29316, Negative cache size: 612, Negative conditional cache size: 0, Negative unconditional cache size: 612, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.7s, 1224 PlacesBefore, 586 PlacesAfterwards, 1329 TransitionsBefore, 681 TransitionsAfterwards, 1621746 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 702 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 518 ConcurrentYvCompositions, 10 ChoiceCompositions, 1243 TotalNumberOfCompositions, 6741756 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1453136, independent: 1446561, independent conditional: 0, independent unconditional: 1446561, dependent: 6575, dependent conditional: 0, dependent unconditional: 6575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 865668, independent: 864309, independent conditional: 0, independent unconditional: 864309, dependent: 1359, dependent conditional: 0, dependent unconditional: 1359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1453136, independent: 582252, independent conditional: 0, independent unconditional: 582252, dependent: 5216, dependent conditional: 0, dependent unconditional: 5216, unknown: 865668, unknown conditional: 0, unknown unconditional: 865668] , Statistics on independence cache: Total cache size (in pairs): 13742, Positive cache size: 13093, Positive conditional cache size: 0, Positive unconditional cache size: 13093, Negative cache size: 649, Negative conditional cache size: 0, Negative unconditional cache size: 649, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.6s, 1281 PlacesBefore, 613 PlacesAfterwards, 1391 TransitionsBefore, 712 TransitionsAfterwards, 1782176 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 745 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 543 ConcurrentYvCompositions, 11 ChoiceCompositions, 1312 TotalNumberOfCompositions, 7432988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1905816, independent: 1898932, independent conditional: 0, independent unconditional: 1898932, dependent: 6884, dependent conditional: 0, dependent unconditional: 6884, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1015259, independent: 1013341, independent conditional: 0, independent unconditional: 1013341, dependent: 1918, dependent conditional: 0, dependent unconditional: 1918, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1905816, independent: 885591, independent conditional: 0, independent unconditional: 885591, dependent: 4966, dependent conditional: 0, dependent unconditional: 4966, unknown: 1015259, unknown conditional: 0, unknown unconditional: 1015259] , Statistics on independence cache: Total cache size (in pairs): 68549, Positive cache size: 67441, Positive conditional cache size: 0, Positive unconditional cache size: 67441, Negative cache size: 1108, Negative conditional cache size: 0, Negative unconditional cache size: 1108, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4s, 1338 PlacesBefore, 645 PlacesAfterwards, 1453 TransitionsBefore, 753 TransitionsAfterwards, 1950170 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 744 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 596 ConcurrentYvCompositions, 7 ChoiceCompositions, 1360 TotalNumberOfCompositions, 8158112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1809765, independent: 1802545, independent conditional: 0, independent unconditional: 1802545, dependent: 7220, dependent conditional: 0, dependent unconditional: 7220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1052947, independent: 1051076, independent conditional: 0, independent unconditional: 1051076, dependent: 1871, dependent conditional: 0, dependent unconditional: 1871, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1809765, independent: 751469, independent conditional: 0, independent unconditional: 751469, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 1052947, unknown conditional: 0, unknown unconditional: 1052947] , Statistics on independence cache: Total cache size (in pairs): 30111, Positive cache size: 29392, Positive conditional cache size: 0, Positive unconditional cache size: 29392, Negative cache size: 719, Negative conditional cache size: 0, Negative unconditional cache size: 719, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.4s, 1395 PlacesBefore, 664 PlacesAfterwards, 1515 TransitionsBefore, 768 TransitionsAfterwards, 2125728 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 796 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 583 ConcurrentYvCompositions, 16 ChoiceCompositions, 1408 TotalNumberOfCompositions, 8638742 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1874942, independent: 1867551, independent conditional: 0, independent unconditional: 1867551, dependent: 7391, dependent conditional: 0, dependent unconditional: 7391, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1127598, independent: 1126152, independent conditional: 0, independent unconditional: 1126152, dependent: 1446, dependent conditional: 0, dependent unconditional: 1446, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1874942, independent: 741399, independent conditional: 0, independent unconditional: 741399, dependent: 5945, dependent conditional: 0, dependent unconditional: 5945, unknown: 1127598, unknown conditional: 0, unknown unconditional: 1127598] , Statistics on independence cache: Total cache size (in pairs): 18052, Positive cache size: 17318, Positive conditional cache size: 0, Positive unconditional cache size: 17318, Negative cache size: 734, Negative conditional cache size: 0, Negative unconditional cache size: 734, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.0s, 1452 PlacesBefore, 693 PlacesAfterwards, 1577 TransitionsBefore, 803 TransitionsAfterwards, 2308850 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 832 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 616 ConcurrentYvCompositions, 15 ChoiceCompositions, 1476 TotalNumberOfCompositions, 9589118 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3042863, independent: 3035024, independent conditional: 0, independent unconditional: 3035024, dependent: 7839, dependent conditional: 0, dependent unconditional: 7839, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1320804, independent: 1318554, independent conditional: 0, independent unconditional: 1318554, dependent: 2250, dependent conditional: 0, dependent unconditional: 2250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3042863, independent: 1716470, independent conditional: 0, independent unconditional: 1716470, dependent: 5589, dependent conditional: 0, dependent unconditional: 5589, unknown: 1320804, unknown conditional: 0, unknown unconditional: 1320804] , Statistics on independence cache: Total cache size (in pairs): 116256, Positive cache size: 115391, Positive conditional cache size: 0, Positive unconditional cache size: 115391, Negative cache size: 865, Negative conditional cache size: 0, Negative unconditional cache size: 865, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.2s, 1509 PlacesBefore, 728 PlacesAfterwards, 1639 TransitionsBefore, 850 TransitionsAfterwards, 2499536 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 669 ConcurrentYvCompositions, 8 ChoiceCompositions, 1556 TotalNumberOfCompositions, 10526473 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2666615, independent: 2658397, independent conditional: 0, independent unconditional: 2658397, dependent: 8218, dependent conditional: 0, dependent unconditional: 8218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1435257, independent: 1433049, independent conditional: 0, independent unconditional: 1433049, dependent: 2208, dependent conditional: 0, dependent unconditional: 2208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2666615, independent: 1225348, independent conditional: 0, independent unconditional: 1225348, dependent: 6010, dependent conditional: 0, dependent unconditional: 6010, unknown: 1435257, unknown conditional: 0, unknown unconditional: 1435257] , Statistics on independence cache: Total cache size (in pairs): 99557, Positive cache size: 98539, Positive conditional cache size: 0, Positive unconditional cache size: 98539, Negative cache size: 1018, Negative conditional cache size: 0, Negative unconditional cache size: 1018, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.5s, 1566 PlacesBefore, 743 PlacesAfterwards, 1701 TransitionsBefore, 857 TransitionsAfterwards, 2697786 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 913 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 644 ConcurrentYvCompositions, 21 ChoiceCompositions, 1591 TotalNumberOfCompositions, 11010956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2407729, independent: 2399387, independent conditional: 0, independent unconditional: 2399387, dependent: 8342, dependent conditional: 0, dependent unconditional: 8342, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1438713, independent: 1436958, independent conditional: 0, independent unconditional: 1436958, dependent: 1755, dependent conditional: 0, dependent unconditional: 1755, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2407729, independent: 962429, independent conditional: 0, independent unconditional: 962429, dependent: 6587, dependent conditional: 0, dependent unconditional: 6587, unknown: 1438713, unknown conditional: 0, unknown unconditional: 1438713] , Statistics on independence cache: Total cache size (in pairs): 23625, Positive cache size: 22806, Positive conditional cache size: 0, Positive unconditional cache size: 22806, Negative cache size: 819, Negative conditional cache size: 0, Negative unconditional cache size: 819, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.9s, 1623 PlacesBefore, 775 PlacesAfterwards, 1763 TransitionsBefore, 898 TransitionsAfterwards, 2903600 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 938 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 677 ConcurrentYvCompositions, 17 ChoiceCompositions, 1645 TotalNumberOfCompositions, 11976846 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2548924, independent: 2540201, independent conditional: 0, independent unconditional: 2540201, dependent: 8723, dependent conditional: 0, dependent unconditional: 8723, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1539931, independent: 1537905, independent conditional: 0, independent unconditional: 1537905, dependent: 2026, dependent conditional: 0, dependent unconditional: 2026, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2548924, independent: 1002296, independent conditional: 0, independent unconditional: 1002296, dependent: 6697, dependent conditional: 0, dependent unconditional: 6697, unknown: 1539931, unknown conditional: 0, unknown unconditional: 1539931] , Statistics on independence cache: Total cache size (in pairs): 22574, Positive cache size: 21713, Positive conditional cache size: 0, Positive unconditional cache size: 21713, Negative cache size: 861, Negative conditional cache size: 0, Negative unconditional cache size: 861, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.1s, 1680 PlacesBefore, 801 PlacesAfterwards, 1825 TransitionsBefore, 927 TransitionsAfterwards, 3116978 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 978 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 695 ConcurrentYvCompositions, 19 ChoiceCompositions, 1705 TotalNumberOfCompositions, 12823102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2721158, independent: 2712144, independent conditional: 0, independent unconditional: 2712144, dependent: 9014, dependent conditional: 0, dependent unconditional: 9014, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1663778, independent: 1661905, independent conditional: 0, independent unconditional: 1661905, dependent: 1873, dependent conditional: 0, dependent unconditional: 1873, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2721158, independent: 1050239, independent conditional: 0, independent unconditional: 1050239, dependent: 7141, dependent conditional: 0, dependent unconditional: 7141, unknown: 1663778, unknown conditional: 0, unknown unconditional: 1663778] , Statistics on independence cache: Total cache size (in pairs): 26075, Positive cache size: 25188, Positive conditional cache size: 0, Positive unconditional cache size: 25188, Negative cache size: 887, Negative conditional cache size: 0, Negative unconditional cache size: 887, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.5s, 1737 PlacesBefore, 830 PlacesAfterwards, 1887 TransitionsBefore, 962 TransitionsAfterwards, 3337920 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 991 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 730 ConcurrentYvCompositions, 18 ChoiceCompositions, 1752 TotalNumberOfCompositions, 13804250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2896210, independent: 2886846, independent conditional: 0, independent unconditional: 2886846, dependent: 9364, dependent conditional: 0, dependent unconditional: 9364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1771756, independent: 1769605, independent conditional: 0, independent unconditional: 1769605, dependent: 2151, dependent conditional: 0, dependent unconditional: 2151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2896210, independent: 1117241, independent conditional: 0, independent unconditional: 1117241, dependent: 7213, dependent conditional: 0, dependent unconditional: 7213, unknown: 1771756, unknown conditional: 0, unknown unconditional: 1771756] , Statistics on independence cache: Total cache size (in pairs): 23283, Positive cache size: 22307, Positive conditional cache size: 0, Positive unconditional cache size: 22307, Negative cache size: 976, Negative conditional cache size: 0, Negative unconditional cache size: 976, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.2s, 1794 PlacesBefore, 865 PlacesAfterwards, 1949 TransitionsBefore, 1009 TransitionsAfterwards, 3566426 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 1019 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 790 ConcurrentYvCompositions, 11 ChoiceCompositions, 1833 TotalNumberOfCompositions, 14815051 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3151853, independent: 3142189, independent conditional: 0, independent unconditional: 3142189, dependent: 9664, dependent conditional: 0, dependent unconditional: 9664, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1899876, independent: 1897614, independent conditional: 0, independent unconditional: 1897614, dependent: 2262, dependent conditional: 0, dependent unconditional: 2262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3151853, independent: 1244575, independent conditional: 0, independent unconditional: 1244575, dependent: 7402, dependent conditional: 0, dependent unconditional: 7402, unknown: 1899876, unknown conditional: 0, unknown unconditional: 1899876] , Statistics on independence cache: Total cache size (in pairs): 26174, Positive cache size: 25205, Positive conditional cache size: 0, Positive unconditional cache size: 25205, Negative cache size: 969, Negative conditional cache size: 0, Negative unconditional cache size: 969, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.3s, 1851 PlacesBefore, 884 PlacesAfterwards, 2011 TransitionsBefore, 1024 TransitionsAfterwards, 3802496 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 1088 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 775 ConcurrentYvCompositions, 20 ChoiceCompositions, 1896 TotalNumberOfCompositions, 15559502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5176532, independent: 5166668, independent conditional: 0, independent unconditional: 5166668, dependent: 9864, dependent conditional: 0, dependent unconditional: 9864, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2169956, independent: 2167236, independent conditional: 0, independent unconditional: 2167236, dependent: 2720, dependent conditional: 0, dependent unconditional: 2720, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5176532, independent: 2999432, independent conditional: 0, independent unconditional: 2999432, dependent: 7144, dependent conditional: 0, dependent unconditional: 7144, unknown: 2169956, unknown conditional: 0, unknown unconditional: 2169956] , Statistics on independence cache: Total cache size (in pairs): 193777, Positive cache size: 192671, Positive conditional cache size: 0, Positive unconditional cache size: 192671, Negative cache size: 1106, Negative conditional cache size: 0, Negative unconditional cache size: 1106, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.9s, 1908 PlacesBefore, 920 PlacesAfterwards, 2073 TransitionsBefore, 1073 TransitionsAfterwards, 4046130 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 1074 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 837 ConcurrentYvCompositions, 12 ChoiceCompositions, 1936 TotalNumberOfCompositions, 16907152 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5520674, independent: 5510294, independent conditional: 0, independent unconditional: 5510294, dependent: 10380, dependent conditional: 0, dependent unconditional: 10380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2307930, independent: 2305336, independent conditional: 0, independent unconditional: 2305336, dependent: 2594, dependent conditional: 0, dependent unconditional: 2594, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5520674, independent: 3204958, independent conditional: 0, independent unconditional: 3204958, dependent: 7786, dependent conditional: 0, dependent unconditional: 7786, unknown: 2307930, unknown conditional: 0, unknown unconditional: 2307930] , Statistics on independence cache: Total cache size (in pairs): 215651, Positive cache size: 214492, Positive conditional cache size: 0, Positive unconditional cache size: 214492, Negative cache size: 1159, Negative conditional cache size: 0, Negative unconditional cache size: 1159, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.0s, 1965 PlacesBefore, 947 PlacesAfterwards, 2135 TransitionsBefore, 1104 TransitionsAfterwards, 4297328 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 1146 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 855 ConcurrentYvCompositions, 13 ChoiceCompositions, 2027 TotalNumberOfCompositions, 18001993 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5911821, independent: 5901180, independent conditional: 0, independent unconditional: 5901180, dependent: 10641, dependent conditional: 0, dependent unconditional: 10641, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2456857, independent: 2453901, independent conditional: 0, independent unconditional: 2453901, dependent: 2956, dependent conditional: 0, dependent unconditional: 2956, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5911821, independent: 3447279, independent conditional: 0, independent unconditional: 3447279, dependent: 7685, dependent conditional: 0, dependent unconditional: 7685, unknown: 2456857, unknown conditional: 0, unknown unconditional: 2456857] , Statistics on independence cache: Total cache size (in pairs): 223974, Positive cache size: 222781, Positive conditional cache size: 0, Positive unconditional cache size: 222781, Negative cache size: 1193, Negative conditional cache size: 0, Negative unconditional cache size: 1193, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AutomataOperationCanceledException: Timeout or canceled by user. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolderBase.computeUnfolding(PetriNetUnfolderBase.java:200) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown