/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.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 14:36:18,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 14:36:18,463 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 14:36:18,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 14:36:18,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 14:36:18,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 14:36:18,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 14:36:18,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 14:36:18,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 14:36:18,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 14:36:18,505 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 14:36:18,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 14:36:18,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 14:36:18,506 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 14:36:18,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 14:36:18,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 14:36:18,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 14:36:18,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 14:36:18,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 14:36:18,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 14:36:18,508 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 14:36:18,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 14:36:18,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 14:36:18,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 14:36:18,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 14:36:18,516 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 14:36:18,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 14:36:18,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:36:18,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 14:36:18,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 14:36:18,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 14:36:18,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 14:36:18,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 14:36:18,519 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 14:36:18,519 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 14:36:18,520 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 14:36:18,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 14:36:18,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 14:36:18,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 14:36:18,898 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 14:36:18,899 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 14:36:18,900 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-08-26 14:36:20,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 14:36:20,462 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 14:36:20,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-08-26 14:36:20,480 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3af3da1/57e8f60818814d169e8ebe30450bc880/FLAG1b70d5e59 [2023-08-26 14:36:20,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c3af3da1/57e8f60818814d169e8ebe30450bc880 [2023-08-26 14:36:20,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 14:36:20,494 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 14:36:20,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 14:36:20,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 14:36:20,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 14:36:20,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:20,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9cf4397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20, skipping insertion in model container [2023-08-26 14:36:20,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:20,538 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 14:36:20,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:36:20,859 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 14:36:20,886 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:36:20,888 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:36:20,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:36:20,961 INFO L206 MainTranslator]: Completed translation [2023-08-26 14:36:20,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20 WrapperNode [2023-08-26 14:36:20,964 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 14:36:20,965 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 14:36:20,965 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 14:36:20,965 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 14:36:20,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:20,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,028 INFO L138 Inliner]: procedures = 177, calls = 48, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 193 [2023-08-26 14:36:21,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 14:36:21,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 14:36:21,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 14:36:21,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 14:36:21,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 14:36:21,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 14:36:21,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 14:36:21,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 14:36:21,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (1/1) ... [2023-08-26 14:36:21,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:36:21,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 14:36:21,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 14:36:21,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 14:36:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 14:36:21,147 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-26 14:36:21,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-26 14:36:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 14:36:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 14:36:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 14:36:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 14:36:21,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 14:36:21,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 14:36:21,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 14:36:21,150 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 14:36:21,295 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 14:36:21,299 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 14:36:21,601 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 14:36:21,786 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 14:36:21,787 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 14:36:21,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:36:21 BoogieIcfgContainer [2023-08-26 14:36:21,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 14:36:21,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 14:36:21,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 14:36:21,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 14:36:21,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:36:20" (1/3) ... [2023-08-26 14:36:21,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfd5cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:36:21, skipping insertion in model container [2023-08-26 14:36:21,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:36:20" (2/3) ... [2023-08-26 14:36:21,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfd5cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:36:21, skipping insertion in model container [2023-08-26 14:36:21,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:36:21" (3/3) ... [2023-08-26 14:36:21,796 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-2.i [2023-08-26 14:36:21,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 14:36:21,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2023-08-26 14:36:21,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 14:36:21,916 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:21,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,017 INFO L124 PetriNetUnfolderBase]: 11/168 cut-off events. [2023-08-26 14:36:22,017 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:22,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 11/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 132. Up to 4 conditions per place. [2023-08-26 14:36:22,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:22,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,043 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 156 transitions, 317 flow [2023-08-26 14:36:22,073 INFO L124 PetriNetUnfolderBase]: 11/168 cut-off events. [2023-08-26 14:36:22,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:22,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 11/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 303 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 132. Up to 4 conditions per place. [2023-08-26 14:36:22,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 3540 [2023-08-26 14:36:28,847 INFO L134 LiptonReduction]: Checked pairs total: 5664 [2023-08-26 14:36:28,847 INFO L136 LiptonReduction]: Total number of compositions: 171 [2023-08-26 14:36:28,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:28,862 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:28,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:28,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:28,867 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-08-26 14:36:28,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:36:28,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:28,868 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-26 14:36:28,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:28,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash -687988900, now seen corresponding path program 1 times [2023-08-26 14:36:28,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:28,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590046806] [2023-08-26 14:36:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:28,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:29,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:29,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:29,063 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:29,064 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:29,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 14:36:29,066 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:29,071 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:29,072 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:29,073 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-26 14:36:29,197 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:29,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,294 INFO L124 PetriNetUnfolderBase]: 21/301 cut-off events. [2023-08-26 14:36:29,294 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:29,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 301 events. 21/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 886 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 250. Up to 6 conditions per place. [2023-08-26 14:36:29,302 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,305 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,305 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:29,305 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,305 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 275 transitions, 562 flow [2023-08-26 14:36:29,352 INFO L124 PetriNetUnfolderBase]: 21/301 cut-off events. [2023-08-26 14:36:29,352 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:29,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 301 events. 21/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 886 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 250. Up to 6 conditions per place. [2023-08-26 14:36:29,373 INFO L119 LiptonReduction]: Number of co-enabled transitions 35164 [2023-08-26 14:36:36,034 INFO L134 LiptonReduction]: Checked pairs total: 103486 [2023-08-26 14:36:36,034 INFO L136 LiptonReduction]: Total number of compositions: 229 [2023-08-26 14:36:36,036 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:36,037 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:36,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:36,042 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:36,043 INFO L124 PetriNetUnfolderBase]: 3/58 cut-off events. [2023-08-26 14:36:36,043 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:36:36,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:36,043 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-26 14:36:36,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:36,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:36,044 INFO L85 PathProgramCache]: Analyzing trace with hash -903108908, now seen corresponding path program 1 times [2023-08-26 14:36:36,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:36,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283555818] [2023-08-26 14:36:36,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:36,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:36,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:36,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:36,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:36,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:36,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 14:36:36,083 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:36,084 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:36,084 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:36,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-26 14:36:36,162 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:36,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,248 INFO L124 PetriNetUnfolderBase]: 31/434 cut-off events. [2023-08-26 14:36:36,248 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:36,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 31/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1612 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 368. Up to 8 conditions per place. [2023-08-26 14:36:36,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,260 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,260 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:36,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,261 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 394 transitions, 809 flow [2023-08-26 14:36:36,335 INFO L124 PetriNetUnfolderBase]: 31/434 cut-off events. [2023-08-26 14:36:36,335 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:36,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 434 events. 31/434 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1612 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 368. Up to 8 conditions per place. [2023-08-26 14:36:36,367 INFO L119 LiptonReduction]: Number of co-enabled transitions 94872 [2023-08-26 14:36:45,030 INFO L134 LiptonReduction]: Checked pairs total: 291122 [2023-08-26 14:36:45,031 INFO L136 LiptonReduction]: Total number of compositions: 327 [2023-08-26 14:36:45,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:45,033 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:45,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:45,046 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:45,046 INFO L124 PetriNetUnfolderBase]: 8/119 cut-off events. [2023-08-26 14:36:45,046 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:36:45,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:45,047 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-26 14:36:45,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:45,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash 343399504, now seen corresponding path program 1 times [2023-08-26 14:36:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:45,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783833061] [2023-08-26 14:36:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:45,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:45,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:45,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:45,087 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:45,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:45,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 14:36:45,088 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:45,088 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:45,089 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:45,089 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-26 14:36:45,185 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:45,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,336 INFO L124 PetriNetUnfolderBase]: 41/567 cut-off events. [2023-08-26 14:36:45,336 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:45,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 567 events. 41/567 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2439 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 486. Up to 10 conditions per place. [2023-08-26 14:36:45,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,362 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:45,362 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,363 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 513 transitions, 1058 flow [2023-08-26 14:36:45,474 INFO L124 PetriNetUnfolderBase]: 41/567 cut-off events. [2023-08-26 14:36:45,474 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:45,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 567 events. 41/567 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2439 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 486. Up to 10 conditions per place. [2023-08-26 14:36:45,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 182664 [2023-08-26 14:36:56,543 INFO L134 LiptonReduction]: Checked pairs total: 580822 [2023-08-26 14:36:56,543 INFO L136 LiptonReduction]: Total number of compositions: 417 [2023-08-26 14:36:56,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:36:56,546 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:36:56,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:36:56,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:36:56,566 INFO L124 PetriNetUnfolderBase]: 14/191 cut-off events. [2023-08-26 14:36:56,566 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:36:56,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:36:56,567 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-26 14:36:56,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:36:56,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:36:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash 34825928, now seen corresponding path program 1 times [2023-08-26 14:36:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:36:56,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308852174] [2023-08-26 14:36:56,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:36:56,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:36:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:56,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:36:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:36:56,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:36:56,608 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:36:56,608 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:36:56,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 14:36:56,608 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:36:56,609 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:36:56,609 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:36:56,609 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-26 14:36:56,719 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:36:56,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:56,885 INFO L124 PetriNetUnfolderBase]: 51/700 cut-off events. [2023-08-26 14:36:56,886 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:36:56,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 700 events. 51/700 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3263 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 604. Up to 12 conditions per place. [2023-08-26 14:36:56,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:56,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:56,918 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:36:56,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:56,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:56,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 632 transitions, 1309 flow [2023-08-26 14:36:57,060 INFO L124 PetriNetUnfolderBase]: 51/700 cut-off events. [2023-08-26 14:36:57,060 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:36:57,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 700 events. 51/700 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3263 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 604. Up to 12 conditions per place. [2023-08-26 14:36:57,146 INFO L119 LiptonReduction]: Number of co-enabled transitions 298540 [2023-08-26 14:37:10,795 INFO L134 LiptonReduction]: Checked pairs total: 917072 [2023-08-26 14:37:10,795 INFO L136 LiptonReduction]: Total number of compositions: 519 [2023-08-26 14:37:10,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:10,797 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:10,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:10,829 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:10,829 INFO L124 PetriNetUnfolderBase]: 22/265 cut-off events. [2023-08-26 14:37:10,829 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:37:10,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:10,829 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:10,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:10,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1778461880, now seen corresponding path program 1 times [2023-08-26 14:37:10,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076835937] [2023-08-26 14:37:10,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:10,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:10,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:10,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:10,905 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:10,905 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:10,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 14:37:10,905 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:10,906 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:10,906 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:10,906 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-26 14:37:11,088 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:11,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,311 INFO L124 PetriNetUnfolderBase]: 61/833 cut-off events. [2023-08-26 14:37:11,311 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:11,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 833 events. 61/833 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4178 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 722. Up to 14 conditions per place. [2023-08-26 14:37:11,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,358 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:11,358 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,359 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 709 places, 751 transitions, 1562 flow [2023-08-26 14:37:11,537 INFO L124 PetriNetUnfolderBase]: 61/833 cut-off events. [2023-08-26 14:37:11,538 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:11,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 833 events. 61/833 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4178 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 722. Up to 14 conditions per place. [2023-08-26 14:37:11,628 INFO L119 LiptonReduction]: Number of co-enabled transitions 442500 [2023-08-26 14:37:27,672 INFO L134 LiptonReduction]: Checked pairs total: 1413117 [2023-08-26 14:37:27,672 INFO L136 LiptonReduction]: Total number of compositions: 619 [2023-08-26 14:37:27,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:27,675 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:27,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:27,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:27,725 INFO L124 PetriNetUnfolderBase]: 28/340 cut-off events. [2023-08-26 14:37:27,725 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:37:27,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:27,725 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:27,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:27,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:27,726 INFO L85 PathProgramCache]: Analyzing trace with hash -749747567, now seen corresponding path program 1 times [2023-08-26 14:37:27,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:27,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889738485] [2023-08-26 14:37:27,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:27,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:27,824 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:27,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:27,856 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:27,856 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:27,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 14:37:27,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:27,857 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:27,857 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:27,857 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-26 14:37:28,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:28,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,318 INFO L124 PetriNetUnfolderBase]: 71/966 cut-off events. [2023-08-26 14:37:28,319 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:28,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 966 events. 71/966 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5071 event pairs, 0 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 859. Up to 16 conditions per place. [2023-08-26 14:37:28,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,371 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:28,371 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,371 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 870 transitions, 1817 flow [2023-08-26 14:37:28,663 INFO L124 PetriNetUnfolderBase]: 71/966 cut-off events. [2023-08-26 14:37:28,663 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:28,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 966 events. 71/966 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5071 event pairs, 0 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 859. Up to 16 conditions per place. [2023-08-26 14:37:28,866 INFO L119 LiptonReduction]: Number of co-enabled transitions 614544 [2023-08-26 14:37:46,601 INFO L134 LiptonReduction]: Checked pairs total: 2221831 [2023-08-26 14:37:46,601 INFO L136 LiptonReduction]: Total number of compositions: 694 [2023-08-26 14:37:46,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:37:46,604 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:37:46,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:37:46,719 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:37:46,719 INFO L124 PetriNetUnfolderBase]: 35/414 cut-off events. [2023-08-26 14:37:46,719 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:37:46,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:37:46,719 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:37:46,719 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:37:46,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:37:46,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1400340273, now seen corresponding path program 1 times [2023-08-26 14:37:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:37:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813678282] [2023-08-26 14:37:46,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:37:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:37:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:46,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:37:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:37:46,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:37:46,789 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:37:46,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:37:46,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 14:37:46,789 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:37:46,789 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:37:46,790 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:37:46,790 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-26 14:37:46,984 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:37:46,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,413 INFO L124 PetriNetUnfolderBase]: 81/1099 cut-off events. [2023-08-26 14:37:47,413 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:37:47,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1099 events. 81/1099 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5965 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1000. Up to 18 conditions per place. [2023-08-26 14:37:47,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,500 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:37:47,501 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,501 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 989 transitions, 2074 flow [2023-08-26 14:37:47,980 INFO L124 PetriNetUnfolderBase]: 81/1099 cut-off events. [2023-08-26 14:37:47,981 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:37:48,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 1099 events. 81/1099 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5965 event pairs, 0 based on Foata normal form. 0/679 useless extension candidates. Maximal degree in co-relation 1000. Up to 18 conditions per place. [2023-08-26 14:37:48,121 INFO L119 LiptonReduction]: Number of co-enabled transitions 814672 [2023-08-26 14:38:08,362 INFO L134 LiptonReduction]: Checked pairs total: 2975726 [2023-08-26 14:38:08,362 INFO L136 LiptonReduction]: Total number of compositions: 799 [2023-08-26 14:38:08,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:38:08,365 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:38:08,365 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:38:08,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:38:08,439 INFO L124 PetriNetUnfolderBase]: 43/488 cut-off events. [2023-08-26 14:38:08,439 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:38:08,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:38:08,439 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:38:08,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:38:08,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:38:08,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1080453195, now seen corresponding path program 1 times [2023-08-26 14:38:08,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:38:08,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925886063] [2023-08-26 14:38:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:38:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:38:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:08,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:38:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:08,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:38:08,491 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:38:08,491 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:38:08,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 14:38:08,491 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:38:08,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:38:08,492 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:38:08,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-26 14:38:08,645 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:38:08,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,205 INFO L124 PetriNetUnfolderBase]: 91/1232 cut-off events. [2023-08-26 14:38:09,205 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:09,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1232 events. 91/1232 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6887 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1142. Up to 20 conditions per place. [2023-08-26 14:38:09,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,261 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:38:09,262 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,262 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1045 places, 1108 transitions, 2333 flow [2023-08-26 14:38:09,649 INFO L124 PetriNetUnfolderBase]: 91/1232 cut-off events. [2023-08-26 14:38:09,649 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:09,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 1232 events. 91/1232 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6887 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1142. Up to 20 conditions per place. [2023-08-26 14:38:09,883 INFO L119 LiptonReduction]: Number of co-enabled transitions 1042884 [2023-08-26 14:38:33,299 INFO L134 LiptonReduction]: Checked pairs total: 3340549 [2023-08-26 14:38:33,300 INFO L136 LiptonReduction]: Total number of compositions: 891 [2023-08-26 14:38:33,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:38:33,302 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:38:33,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:38:33,396 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:38:33,397 INFO L124 PetriNetUnfolderBase]: 50/563 cut-off events. [2023-08-26 14:38:33,397 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:38:33,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:38:33,397 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:38:33,397 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:38:33,397 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:38:33,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1984222509, now seen corresponding path program 1 times [2023-08-26 14:38:33,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:38:33,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811386223] [2023-08-26 14:38:33,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:38:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:38:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:33,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:38:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:38:33,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:38:33,455 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:38:33,455 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:38:33,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 14:38:33,455 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:38:33,455 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:38:33,455 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:38:33,456 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-26 14:38:33,632 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:38:33,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,101 INFO L124 PetriNetUnfolderBase]: 101/1365 cut-off events. [2023-08-26 14:38:34,101 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:38:34,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1365 events. 101/1365 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7808 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 1285. Up to 22 conditions per place. [2023-08-26 14:38:34,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,198 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,198 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:38:34,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,199 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1157 places, 1227 transitions, 2594 flow [2023-08-26 14:38:34,736 INFO L124 PetriNetUnfolderBase]: 101/1365 cut-off events. [2023-08-26 14:38:34,736 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:38:34,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1451 conditions, 1365 events. 101/1365 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7808 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 1285. Up to 22 conditions per place. [2023-08-26 14:38:35,005 INFO L119 LiptonReduction]: Number of co-enabled transitions 1299180 [2023-08-26 14:39:01,957 INFO L134 LiptonReduction]: Checked pairs total: 4740999 [2023-08-26 14:39:01,957 INFO L136 LiptonReduction]: Total number of compositions: 994 [2023-08-26 14:39:01,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:39:01,959 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:39:01,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:39:02,082 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:39:02,082 INFO L124 PetriNetUnfolderBase]: 57/637 cut-off events. [2023-08-26 14:39:02,083 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:39:02,083 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:39:02,083 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:39:02,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:39:02,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:39:02,083 INFO L85 PathProgramCache]: Analyzing trace with hash 612160004, now seen corresponding path program 1 times [2023-08-26 14:39:02,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:39:02,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163014960] [2023-08-26 14:39:02,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:39:02,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:39:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:02,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:39:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:02,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:39:02,138 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:39:02,138 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:39:02,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 14:39:02,138 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:39:02,138 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:39:02,138 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:39:02,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-26 14:39:02,333 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:39:02,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:02,941 INFO L124 PetriNetUnfolderBase]: 111/1498 cut-off events. [2023-08-26 14:39:02,941 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:39:03,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 1498 events. 111/1498 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8664 event pairs, 0 based on Foata normal form. 0/922 useless extension candidates. Maximal degree in co-relation 1431. Up to 24 conditions per place. [2023-08-26 14:39:03,015 INFO L82 GeneralOperation]: Start removeDead. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:03,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:03,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:39:03,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:03,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:03,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1269 places, 1346 transitions, 2857 flow [2023-08-26 14:39:03,567 INFO L124 PetriNetUnfolderBase]: 111/1498 cut-off events. [2023-08-26 14:39:03,567 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:39:03,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 1498 events. 111/1498 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 8664 event pairs, 0 based on Foata normal form. 0/922 useless extension candidates. Maximal degree in co-relation 1431. Up to 24 conditions per place. [2023-08-26 14:39:03,928 INFO L119 LiptonReduction]: Number of co-enabled transitions 1583560 [2023-08-26 14:39:32,673 INFO L134 LiptonReduction]: Checked pairs total: 5228363 [2023-08-26 14:39:32,673 INFO L136 LiptonReduction]: Total number of compositions: 1080 [2023-08-26 14:39:32,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:39:32,675 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:39:32,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:39:32,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:39:32,869 INFO L124 PetriNetUnfolderBase]: 64/709 cut-off events. [2023-08-26 14:39:32,869 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:39:32,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:39:32,869 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:39:32,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:39:32,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:39:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1115287981, now seen corresponding path program 1 times [2023-08-26 14:39:32,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:39:32,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721392848] [2023-08-26 14:39:32,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:39:32,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:39:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:32,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:39:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:39:32,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:39:32,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:39:32,930 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:39:32,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 14:39:32,930 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:39:32,931 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:39:32,931 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:39:32,931 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-26 14:39:33,122 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:39:33,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:33,897 INFO L124 PetriNetUnfolderBase]: 121/1631 cut-off events. [2023-08-26 14:39:33,897 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:39:33,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 1631 events. 121/1631 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9552 event pairs, 0 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1578. Up to 26 conditions per place. [2023-08-26 14:39:33,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:33,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:33,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:39:33,983 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:33,983 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:33,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1381 places, 1465 transitions, 3122 flow [2023-08-26 14:39:34,604 INFO L124 PetriNetUnfolderBase]: 121/1631 cut-off events. [2023-08-26 14:39:34,604 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:39:34,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1746 conditions, 1631 events. 121/1631 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9552 event pairs, 0 based on Foata normal form. 0/1003 useless extension candidates. Maximal degree in co-relation 1578. Up to 26 conditions per place. [2023-08-26 14:39:35,189 INFO L119 LiptonReduction]: Number of co-enabled transitions 1896024 [2023-08-26 14:40:06,848 INFO L134 LiptonReduction]: Checked pairs total: 6945934 [2023-08-26 14:40:06,848 INFO L136 LiptonReduction]: Total number of compositions: 1145 [2023-08-26 14:40:06,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:40:06,850 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:40:06,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:40:07,019 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:40:07,019 INFO L124 PetriNetUnfolderBase]: 70/785 cut-off events. [2023-08-26 14:40:07,019 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:40:07,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:40:07,019 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:40:07,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:40:07,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:40:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1462667872, now seen corresponding path program 1 times [2023-08-26 14:40:07,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:40:07,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352093990] [2023-08-26 14:40:07,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:40:07,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:40:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:07,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:40:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:07,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:40:07,085 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:40:07,085 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:40:07,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 14:40:07,086 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:40:07,086 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:40:07,086 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:40:07,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-26 14:40:07,413 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:40:07,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:08,166 INFO L124 PetriNetUnfolderBase]: 131/1764 cut-off events. [2023-08-26 14:40:08,166 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:40:08,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1764 events. 131/1764 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10445 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1726. Up to 28 conditions per place. [2023-08-26 14:40:08,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:08,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:08,336 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:40:08,336 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:08,337 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:08,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1493 places, 1584 transitions, 3389 flow [2023-08-26 14:40:09,074 INFO L124 PetriNetUnfolderBase]: 131/1764 cut-off events. [2023-08-26 14:40:09,074 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:40:09,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1764 events. 131/1764 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 10445 event pairs, 0 based on Foata normal form. 0/1084 useless extension candidates. Maximal degree in co-relation 1726. Up to 28 conditions per place. [2023-08-26 14:40:09,532 INFO L119 LiptonReduction]: Number of co-enabled transitions 2236572 [2023-08-26 14:40:44,323 INFO L134 LiptonReduction]: Checked pairs total: 7264451 [2023-08-26 14:40:44,323 INFO L136 LiptonReduction]: Total number of compositions: 1261 [2023-08-26 14:40:44,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:40:44,326 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:40:44,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:40:44,506 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:40:44,506 INFO L124 PetriNetUnfolderBase]: 79/868 cut-off events. [2023-08-26 14:40:44,506 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:40:44,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:40:44,507 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:40:44,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:40:44,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:40:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1411903617, now seen corresponding path program 1 times [2023-08-26 14:40:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:40:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953506750] [2023-08-26 14:40:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:40:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:40:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:44,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:40:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:40:44,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:40:44,581 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:40:44,581 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:40:44,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 14:40:44,581 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:40:44,582 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:40:44,582 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:40:44,582 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-26 14:40:44,871 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:40:44,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:46,159 INFO L124 PetriNetUnfolderBase]: 141/1897 cut-off events. [2023-08-26 14:40:46,160 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:40:46,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1897 events. 141/1897 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11365 event pairs, 0 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1875. Up to 30 conditions per place. [2023-08-26 14:40:46,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:46,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:46,344 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:40:46,344 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:46,345 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:46,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1605 places, 1703 transitions, 3658 flow [2023-08-26 14:40:47,770 INFO L124 PetriNetUnfolderBase]: 141/1897 cut-off events. [2023-08-26 14:40:47,770 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:40:47,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 1897 events. 141/1897 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11365 event pairs, 0 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1875. Up to 30 conditions per place. [2023-08-26 14:40:48,465 INFO L119 LiptonReduction]: Number of co-enabled transitions 2605204 [2023-08-26 14:41:26,852 INFO L134 LiptonReduction]: Checked pairs total: 8433763 [2023-08-26 14:41:26,853 INFO L136 LiptonReduction]: Total number of compositions: 1361 [2023-08-26 14:41:26,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:41:26,855 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:41:26,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:41:27,085 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:41:27,085 INFO L124 PetriNetUnfolderBase]: 85/938 cut-off events. [2023-08-26 14:41:27,085 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:41:27,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:41:27,085 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:41:27,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:41:27,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:41:27,086 INFO L85 PathProgramCache]: Analyzing trace with hash 452688669, now seen corresponding path program 1 times [2023-08-26 14:41:27,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:41:27,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428513668] [2023-08-26 14:41:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:41:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:41:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:41:27,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:41:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:41:27,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:41:27,151 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:41:27,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:41:27,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 14:41:27,151 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:41:27,151 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:41:27,152 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:41:27,152 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-26 14:41:27,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:41:27,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:28,759 INFO L124 PetriNetUnfolderBase]: 151/2030 cut-off events. [2023-08-26 14:41:28,759 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:41:28,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 2030 events. 151/2030 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12260 event pairs, 0 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2025. Up to 32 conditions per place. [2023-08-26 14:41:28,898 INFO L82 GeneralOperation]: Start removeDead. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:28,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:28,920 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:41:28,920 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:28,920 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:28,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1717 places, 1822 transitions, 3929 flow [2023-08-26 14:41:30,103 INFO L124 PetriNetUnfolderBase]: 151/2030 cut-off events. [2023-08-26 14:41:30,104 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:41:30,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 2030 events. 151/2030 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12260 event pairs, 0 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 2025. Up to 32 conditions per place. [2023-08-26 14:41:30,823 INFO L119 LiptonReduction]: Number of co-enabled transitions 3001920 [2023-08-26 14:42:13,403 INFO L134 LiptonReduction]: Checked pairs total: 9756630 [2023-08-26 14:42:13,403 INFO L136 LiptonReduction]: Total number of compositions: 1494 [2023-08-26 14:42:13,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:42:13,405 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:42:13,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:42:13,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:42:13,742 INFO L124 PetriNetUnfolderBase]: 92/1011 cut-off events. [2023-08-26 14:42:13,742 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:42:13,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:42:13,742 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] [2023-08-26 14:42:13,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:42:13,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:42:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2009832909, now seen corresponding path program 1 times [2023-08-26 14:42:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:42:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930452519] [2023-08-26 14:42:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:42:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:42:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:13,777 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:42:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:42:13,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:42:13,813 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:42:13,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:42:13,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 14:42:13,813 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:42:13,813 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:42:13,813 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:42:13,814 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-26 14:42:14,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:42:14,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:15,629 INFO L124 PetriNetUnfolderBase]: 161/2163 cut-off events. [2023-08-26 14:42:15,629 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:42:15,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 2163 events. 161/2163 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 13219 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2176. Up to 34 conditions per place. [2023-08-26 14:42:15,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:15,784 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:15,785 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:42:15,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:15,785 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:15,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1829 places, 1941 transitions, 4202 flow [2023-08-26 14:42:17,088 INFO L124 PetriNetUnfolderBase]: 161/2163 cut-off events. [2023-08-26 14:42:17,088 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:42:17,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 2163 events. 161/2163 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 13219 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2176. Up to 34 conditions per place. [2023-08-26 14:42:17,902 INFO L119 LiptonReduction]: Number of co-enabled transitions 3426720 [2023-08-26 14:43:01,156 INFO L134 LiptonReduction]: Checked pairs total: 11031770 [2023-08-26 14:43:01,156 INFO L136 LiptonReduction]: Total number of compositions: 1534 [2023-08-26 14:43:01,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:43:01,158 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:43:01,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:43:01,464 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:43:01,465 INFO L124 PetriNetUnfolderBase]: 98/1081 cut-off events. [2023-08-26 14:43:01,465 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:43:01,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:43:01,465 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] [2023-08-26 14:43:01,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:43:01,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:43:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash 475036223, now seen corresponding path program 1 times [2023-08-26 14:43:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:43:01,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183926164] [2023-08-26 14:43:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:43:01,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:43:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:01,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:43:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:01,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:43:01,540 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:43:01,540 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:43:01,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 14:43:01,540 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:43:01,541 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:43:01,541 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:43:01,541 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-26 14:43:01,809 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:43:01,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:03,646 INFO L124 PetriNetUnfolderBase]: 171/2296 cut-off events. [2023-08-26 14:43:03,646 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:43:03,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2296 events. 171/2296 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14095 event pairs, 0 based on Foata normal form. 0/1408 useless extension candidates. Maximal degree in co-relation 2328. Up to 36 conditions per place. [2023-08-26 14:43:03,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:03,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:03,831 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:43:03,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:03,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:03,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2060 transitions, 4477 flow [2023-08-26 14:43:05,899 INFO L124 PetriNetUnfolderBase]: 171/2296 cut-off events. [2023-08-26 14:43:05,899 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:43:06,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2501 conditions, 2296 events. 171/2296 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14095 event pairs, 0 based on Foata normal form. 0/1408 useless extension candidates. Maximal degree in co-relation 2328. Up to 36 conditions per place. [2023-08-26 14:43:06,813 INFO L119 LiptonReduction]: Number of co-enabled transitions 3879604 [2023-08-26 14:43:54,267 INFO L134 LiptonReduction]: Checked pairs total: 12662719 [2023-08-26 14:43:54,267 INFO L136 LiptonReduction]: Total number of compositions: 1634 [2023-08-26 14:43:54,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:43:54,269 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:43:54,270 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:43:54,628 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:43:54,629 INFO L124 PetriNetUnfolderBase]: 106/1158 cut-off events. [2023-08-26 14:43:54,629 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:43:54,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:43:54,629 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] [2023-08-26 14:43:54,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:43:54,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:43:54,629 INFO L85 PathProgramCache]: Analyzing trace with hash 71516106, now seen corresponding path program 1 times [2023-08-26 14:43:54,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:43:54,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222050063] [2023-08-26 14:43:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:43:54,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:43:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:54,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:43:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:43:54,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:43:54,701 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:43:54,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:43:54,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 14:43:54,702 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:43:54,702 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:43:54,702 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:43:54,702 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-26 14:43:54,982 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:43:55,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:56,898 INFO L124 PetriNetUnfolderBase]: 181/2429 cut-off events. [2023-08-26 14:43:56,898 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:43:57,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2655 conditions, 2429 events. 181/2429 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14949 event pairs, 0 based on Foata normal form. 0/1489 useless extension candidates. Maximal degree in co-relation 2481. Up to 38 conditions per place. [2023-08-26 14:43:57,086 INFO L82 GeneralOperation]: Start removeDead. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:57,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:57,115 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:43:57,115 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:57,115 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:57,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2053 places, 2179 transitions, 4754 flow [2023-08-26 14:43:58,771 INFO L124 PetriNetUnfolderBase]: 181/2429 cut-off events. [2023-08-26 14:43:58,771 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:43:58,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2655 conditions, 2429 events. 181/2429 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 14949 event pairs, 0 based on Foata normal form. 0/1489 useless extension candidates. Maximal degree in co-relation 2481. Up to 38 conditions per place. [2023-08-26 14:43:59,664 INFO L119 LiptonReduction]: Number of co-enabled transitions 4360572 [2023-08-26 14:44:50,390 INFO L134 LiptonReduction]: Checked pairs total: 13991446 [2023-08-26 14:44:50,390 INFO L136 LiptonReduction]: Total number of compositions: 1740 [2023-08-26 14:44:50,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:44:50,392 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:44:50,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:44:50,832 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:44:50,833 INFO L124 PetriNetUnfolderBase]: 113/1233 cut-off events. [2023-08-26 14:44:50,833 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:44:50,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:44:50,833 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] [2023-08-26 14:44:50,833 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:44:50,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:44:50,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1993041859, now seen corresponding path program 1 times [2023-08-26 14:44:50,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:44:50,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752695697] [2023-08-26 14:44:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:44:50,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:44:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:44:50,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:44:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:44:50,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:44:50,915 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:44:50,915 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:44:50,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 14:44:50,916 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:44:50,916 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:44:50,916 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:44:50,916 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-26 14:44:51,223 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:44:51,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:53,438 INFO L124 PetriNetUnfolderBase]: 191/2562 cut-off events. [2023-08-26 14:44:53,438 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:44:53,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2562 events. 191/2562 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 15884 event pairs, 0 based on Foata normal form. 0/1570 useless extension candidates. Maximal degree in co-relation 2635. Up to 40 conditions per place. [2023-08-26 14:44:53,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:53,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:53,664 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:44:53,664 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:53,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:53,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2165 places, 2298 transitions, 5033 flow [2023-08-26 14:44:55,630 INFO L124 PetriNetUnfolderBase]: 191/2562 cut-off events. [2023-08-26 14:44:55,631 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:44:55,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 2562 events. 191/2562 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 15884 event pairs, 0 based on Foata normal form. 0/1570 useless extension candidates. Maximal degree in co-relation 2635. Up to 40 conditions per place. [2023-08-26 14:44:56,647 INFO L119 LiptonReduction]: Number of co-enabled transitions 4869624 [2023-08-26 14:45:51,778 INFO L134 LiptonReduction]: Checked pairs total: 15674564 [2023-08-26 14:45:51,778 INFO L136 LiptonReduction]: Total number of compositions: 1850 [2023-08-26 14:45:51,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:45:51,780 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:45:51,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:45:52,270 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:45:52,270 INFO L124 PetriNetUnfolderBase]: 120/1306 cut-off events. [2023-08-26 14:45:52,270 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:45:52,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:45:52,271 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] [2023-08-26 14:45:52,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:45:52,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:45:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1717558992, now seen corresponding path program 1 times [2023-08-26 14:45:52,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:45:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528470284] [2023-08-26 14:45:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:45:52,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:45:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:45:52,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:45:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:45:52,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:45:52,359 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:45:52,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:45:52,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 14:45:52,360 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:45:52,361 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:45:52,361 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:45:52,361 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-26 14:45:52,762 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:45:52,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:55,031 INFO L124 PetriNetUnfolderBase]: 201/2695 cut-off events. [2023-08-26 14:45:55,031 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:45:55,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 2695 events. 201/2695 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16774 event pairs, 0 based on Foata normal form. 0/1651 useless extension candidates. Maximal degree in co-relation 2790. Up to 42 conditions per place. [2023-08-26 14:45:55,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:55,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:55,311 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:45:55,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:55,312 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:55,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2277 places, 2417 transitions, 5314 flow [2023-08-26 14:45:57,427 INFO L124 PetriNetUnfolderBase]: 201/2695 cut-off events. [2023-08-26 14:45:57,428 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:45:57,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2966 conditions, 2695 events. 201/2695 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 16774 event pairs, 0 based on Foata normal form. 0/1651 useless extension candidates. Maximal degree in co-relation 2790. Up to 42 conditions per place. [2023-08-26 14:45:58,783 INFO L119 LiptonReduction]: Number of co-enabled transitions 5406760 [2023-08-26 14:46:57,256 INFO L134 LiptonReduction]: Checked pairs total: 17012896 [2023-08-26 14:46:57,256 INFO L136 LiptonReduction]: Total number of compositions: 1932 [2023-08-26 14:46:57,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:46:57,258 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;@52414514, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:46:57,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-26 14:46:57,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:46:57,859 INFO L124 PetriNetUnfolderBase]: 127/1381 cut-off events. [2023-08-26 14:46:57,859 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:46:57,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:46:57,859 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] [2023-08-26 14:46:57,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:46:57,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:46:57,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1737430327, now seen corresponding path program 1 times [2023-08-26 14:46:57,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:46:57,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242952319] [2023-08-26 14:46:57,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:46:57,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:46:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:46:57,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:46:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:46:57,948 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:46:57,948 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:46:57,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-26 14:46:57,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 14:46:57,949 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:46:57,949 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-26 14:46:57,949 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:46:57,949 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-26 14:46:58,275 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:46:58,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:00,718 INFO L124 PetriNetUnfolderBase]: 211/2828 cut-off events. [2023-08-26 14:47:00,719 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:47:00,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 2828 events. 211/2828 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 17686 event pairs, 0 based on Foata normal form. 0/1732 useless extension candidates. Maximal degree in co-relation 2946. Up to 44 conditions per place. [2023-08-26 14:47:00,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:01,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:01,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:47:01,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:01,033 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:01,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2389 places, 2536 transitions, 5597 flow [2023-08-26 14:47:03,522 INFO L124 PetriNetUnfolderBase]: 211/2828 cut-off events. [2023-08-26 14:47:03,523 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:47:03,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3123 conditions, 2828 events. 211/2828 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 17686 event pairs, 0 based on Foata normal form. 0/1732 useless extension candidates. Maximal degree in co-relation 2946. Up to 44 conditions per place. [2023-08-26 14:47:04,722 INFO L119 LiptonReduction]: Number of co-enabled transitions 5971980 Received shutdown request... [2023-08-26 14:47:45,179 WARN L266 SmtUtils]: Removed 10 from assertion stack [2023-08-26 14:47:45,179 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-26 14:47:45,180 INFO L158 Benchmark]: Toolchain (without parser) took 684685.81ms. Allocated memory was 392.2MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 347.5MB in the beginning and 8.0GB in the end (delta: -7.6GB). Peak memory consumption was 3.9GB. Max. memory is 16.0GB. [2023-08-26 14:47:45,180 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 392.2MB. Free memory was 369.6MB in the beginning and 369.5MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 14:47:45,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 468.82ms. Allocated memory is still 392.2MB. Free memory was 347.2MB in the beginning and 326.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-26 14:47:45,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.66ms. Allocated memory is still 392.2MB. Free memory was 326.3MB in the beginning and 324.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:47:45,181 INFO L158 Benchmark]: Boogie Preprocessor took 52.29ms. Allocated memory is still 392.2MB. Free memory was 324.2MB in the beginning and 322.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:47:45,181 INFO L158 Benchmark]: RCFGBuilder took 707.24ms. Allocated memory is still 392.2MB. Free memory was 322.1MB in the beginning and 259.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. [2023-08-26 14:47:45,181 INFO L158 Benchmark]: TraceAbstraction took 683388.58ms. Allocated memory was 392.2MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 259.2MB in the beginning and 8.0GB in the end (delta: -7.7GB). Peak memory consumption was 3.8GB. Max. memory is 16.0GB. [2023-08-26 14:47:45,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 392.2MB. Free memory was 369.6MB in the beginning and 369.5MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 468.82ms. Allocated memory is still 392.2MB. Free memory was 347.2MB in the beginning and 326.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.66ms. Allocated memory is still 392.2MB. Free memory was 326.3MB in the beginning and 324.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 52.29ms. Allocated memory is still 392.2MB. Free memory was 324.2MB in the beginning and 322.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 707.24ms. Allocated memory is still 392.2MB. Free memory was 322.1MB in the beginning and 259.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.0GB. * TraceAbstraction took 683388.58ms. Allocated memory was 392.2MB in the beginning and 11.3GB in the end (delta: 10.9GB). Free memory was 259.2MB in the beginning and 8.0GB in the end (delta: -7.7GB). Peak memory consumption was 3.8GB. 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 149 PlacesBefore, 64 PlacesAfterwards, 156 TransitionsBefore, 68 TransitionsAfterwards, 3540 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 129 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 171 TotalNumberOfCompositions, 5664 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4174, independent: 3915, independent conditional: 0, independent unconditional: 3915, dependent: 259, dependent conditional: 0, dependent unconditional: 259, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1825, independent: 1754, independent conditional: 0, independent unconditional: 1754, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4174, independent: 2161, independent conditional: 0, independent unconditional: 2161, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1825, unknown conditional: 0, unknown unconditional: 1825] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 261 PlacesBefore, 135 PlacesAfterwards, 275 TransitionsBefore, 144 TransitionsAfterwards, 35164 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 173 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 5 ChoiceCompositions, 229 TotalNumberOfCompositions, 103486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40429, independent: 39542, independent conditional: 0, independent unconditional: 39542, dependent: 887, dependent conditional: 0, dependent unconditional: 887, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 17394, independent: 17159, independent conditional: 0, independent unconditional: 17159, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40429, independent: 22383, independent conditional: 0, independent unconditional: 22383, dependent: 652, dependent conditional: 0, dependent unconditional: 652, unknown: 17394, unknown conditional: 0, unknown unconditional: 17394] , Statistics on independence cache: Total cache size (in pairs): 2116, Positive cache size: 2018, Positive conditional cache size: 0, Positive unconditional cache size: 2018, Negative cache size: 98, Negative conditional cache size: 0, Negative unconditional cache size: 98, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8s, 373 PlacesBefore, 198 PlacesAfterwards, 394 TransitionsBefore, 212 TransitionsAfterwards, 94872 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 250 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 327 TotalNumberOfCompositions, 291122 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110732, independent: 109406, independent conditional: 0, independent unconditional: 109406, dependent: 1326, dependent conditional: 0, dependent unconditional: 1326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 46834, independent: 46512, independent conditional: 0, independent unconditional: 46512, dependent: 322, dependent conditional: 0, dependent unconditional: 322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 110732, independent: 62894, independent conditional: 0, independent unconditional: 62894, dependent: 1004, dependent conditional: 0, dependent unconditional: 1004, unknown: 46834, unknown conditional: 0, unknown unconditional: 46834] , Statistics on independence cache: Total cache size (in pairs): 5905, Positive cache size: 5771, Positive conditional cache size: 0, Positive unconditional cache size: 5771, Negative cache size: 134, Negative conditional cache size: 0, Negative unconditional cache size: 134, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 485 PlacesBefore, 263 PlacesAfterwards, 513 TransitionsBefore, 282 TransitionsAfterwards, 182664 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 319 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 68 ConcurrentYvCompositions, 9 ChoiceCompositions, 417 TotalNumberOfCompositions, 580822 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 191202, independent: 189393, independent conditional: 0, independent unconditional: 189393, dependent: 1809, dependent conditional: 0, dependent unconditional: 1809, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 88491, independent: 88039, independent conditional: 0, independent unconditional: 88039, dependent: 452, dependent conditional: 0, dependent unconditional: 452, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 191202, independent: 101354, independent conditional: 0, independent unconditional: 101354, dependent: 1357, dependent conditional: 0, dependent unconditional: 1357, unknown: 88491, unknown conditional: 0, unknown unconditional: 88491] , Statistics on independence cache: Total cache size (in pairs): 9753, Positive cache size: 9567, Positive conditional cache size: 0, Positive unconditional cache size: 9567, Negative cache size: 186, Negative conditional cache size: 0, Negative unconditional cache size: 186, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9s, 597 PlacesBefore, 324 PlacesAfterwards, 632 TransitionsBefore, 348 TransitionsAfterwards, 298540 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 411 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 76 ConcurrentYvCompositions, 11 ChoiceCompositions, 519 TotalNumberOfCompositions, 917072 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 285243, independent: 283070, independent conditional: 0, independent unconditional: 283070, dependent: 2173, dependent conditional: 0, dependent unconditional: 2173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 142696, independent: 142188, independent conditional: 0, independent unconditional: 142188, dependent: 508, dependent conditional: 0, dependent unconditional: 508, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 285243, independent: 140882, independent conditional: 0, independent unconditional: 140882, dependent: 1665, dependent conditional: 0, dependent unconditional: 1665, unknown: 142696, unknown conditional: 0, unknown unconditional: 142696] , Statistics on independence cache: Total cache size (in pairs): 13997, Positive cache size: 13785, Positive conditional cache size: 0, Positive unconditional cache size: 13785, Negative cache size: 212, Negative conditional cache size: 0, Negative unconditional cache size: 212, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3s, 709 PlacesBefore, 388 PlacesAfterwards, 751 TransitionsBefore, 417 TransitionsAfterwards, 442500 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 489 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 96 ConcurrentYvCompositions, 13 ChoiceCompositions, 619 TotalNumberOfCompositions, 1413117 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 386269, independent: 383597, independent conditional: 0, independent unconditional: 383597, dependent: 2672, dependent conditional: 0, dependent unconditional: 2672, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 205907, independent: 205184, independent conditional: 0, independent unconditional: 205184, dependent: 723, dependent conditional: 0, dependent unconditional: 723, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 386269, independent: 178413, independent conditional: 0, independent unconditional: 178413, dependent: 1949, dependent conditional: 0, dependent unconditional: 1949, unknown: 205907, unknown conditional: 0, unknown unconditional: 205907] , Statistics on independence cache: Total cache size (in pairs): 13466, Positive cache size: 13126, Positive conditional cache size: 0, Positive unconditional cache size: 13126, Negative cache size: 340, Negative conditional cache size: 0, Negative unconditional cache size: 340, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.2s, 821 PlacesBefore, 451 PlacesAfterwards, 870 TransitionsBefore, 485 TransitionsAfterwards, 614544 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 546 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 112 ConcurrentYvCompositions, 15 ChoiceCompositions, 694 TotalNumberOfCompositions, 2221831 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 639418, independent: 635687, independent conditional: 0, independent unconditional: 635687, dependent: 3731, dependent conditional: 0, dependent unconditional: 3731, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 300611, independent: 299802, independent conditional: 0, independent unconditional: 299802, dependent: 809, dependent conditional: 0, dependent unconditional: 809, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 639418, independent: 335885, independent conditional: 0, independent unconditional: 335885, dependent: 2922, dependent conditional: 0, dependent unconditional: 2922, unknown: 300611, unknown conditional: 0, unknown unconditional: 300611] , Statistics on independence cache: Total cache size (in pairs): 34132, Positive cache size: 33835, Positive conditional cache size: 0, Positive unconditional cache size: 33835, Negative cache size: 297, Negative conditional cache size: 0, Negative unconditional cache size: 297, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.9s, 933 PlacesBefore, 514 PlacesAfterwards, 989 TransitionsBefore, 553 TransitionsAfterwards, 814672 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 637 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 124 ConcurrentYvCompositions, 17 ChoiceCompositions, 799 TotalNumberOfCompositions, 2975726 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 771171, independent: 766888, independent conditional: 0, independent unconditional: 766888, dependent: 4283, dependent conditional: 0, dependent unconditional: 4283, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 395327, independent: 394430, independent conditional: 0, independent unconditional: 394430, dependent: 897, dependent conditional: 0, dependent unconditional: 897, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 771171, independent: 372458, independent conditional: 0, independent unconditional: 372458, dependent: 3386, dependent conditional: 0, dependent unconditional: 3386, unknown: 395327, unknown conditional: 0, unknown unconditional: 395327] , Statistics on independence cache: Total cache size (in pairs): 40323, Positive cache size: 39982, Positive conditional cache size: 0, Positive unconditional cache size: 39982, Negative cache size: 341, Negative conditional cache size: 0, Negative unconditional cache size: 341, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.0s, 1045 PlacesBefore, 577 PlacesAfterwards, 1108 TransitionsBefore, 621 TransitionsAfterwards, 1042884 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 712 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 139 ConcurrentYvCompositions, 19 ChoiceCompositions, 891 TotalNumberOfCompositions, 3340549 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 862508, independent: 858496, independent conditional: 0, independent unconditional: 858496, dependent: 4012, dependent conditional: 0, dependent unconditional: 4012, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 500733, independent: 499899, independent conditional: 0, independent unconditional: 499899, dependent: 834, dependent conditional: 0, dependent unconditional: 834, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 862508, independent: 358597, independent conditional: 0, independent unconditional: 358597, dependent: 3178, dependent conditional: 0, dependent unconditional: 3178, unknown: 500733, unknown conditional: 0, unknown unconditional: 500733] , Statistics on independence cache: Total cache size (in pairs): 49215, Positive cache size: 48831, Positive conditional cache size: 0, Positive unconditional cache size: 48831, Negative cache size: 384, Negative conditional cache size: 0, Negative unconditional cache size: 384, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.8s, 1157 PlacesBefore, 641 PlacesAfterwards, 1227 TransitionsBefore, 690 TransitionsAfterwards, 1299180 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 795 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 157 ConcurrentYvCompositions, 21 ChoiceCompositions, 994 TotalNumberOfCompositions, 4740999 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1263979, independent: 1258641, independent conditional: 0, independent unconditional: 1258641, dependent: 5338, dependent conditional: 0, dependent unconditional: 5338, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 628418, independent: 627307, independent conditional: 0, independent unconditional: 627307, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1263979, independent: 631334, independent conditional: 0, independent unconditional: 631334, dependent: 4227, dependent conditional: 0, dependent unconditional: 4227, unknown: 628418, unknown conditional: 0, unknown unconditional: 628418] , Statistics on independence cache: Total cache size (in pairs): 62470, Positive cache size: 62044, Positive conditional cache size: 0, Positive unconditional cache size: 62044, Negative cache size: 426, Negative conditional cache size: 0, Negative unconditional cache size: 426, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.6s, 1269 PlacesBefore, 702 PlacesAfterwards, 1346 TransitionsBefore, 756 TransitionsAfterwards, 1583560 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 873 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 163 ConcurrentYvCompositions, 23 ChoiceCompositions, 1080 TotalNumberOfCompositions, 5228363 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1461890, independent: 1456833, independent conditional: 0, independent unconditional: 1456833, dependent: 5057, dependent conditional: 0, dependent unconditional: 5057, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 727346, independent: 725905, independent conditional: 0, independent unconditional: 725905, dependent: 1441, dependent conditional: 0, dependent unconditional: 1441, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1461890, independent: 730928, independent conditional: 0, independent unconditional: 730928, dependent: 3616, dependent conditional: 0, dependent unconditional: 3616, unknown: 727346, unknown conditional: 0, unknown unconditional: 727346] , Statistics on independence cache: Total cache size (in pairs): 44586, Positive cache size: 44115, Positive conditional cache size: 0, Positive unconditional cache size: 44115, Negative cache size: 471, Negative conditional cache size: 0, Negative unconditional cache size: 471, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.9s, 1381 PlacesBefore, 767 PlacesAfterwards, 1465 TransitionsBefore, 826 TransitionsAfterwards, 1896024 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 904 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 195 ConcurrentYvCompositions, 25 ChoiceCompositions, 1145 TotalNumberOfCompositions, 6945934 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1773812, independent: 1767321, independent conditional: 0, independent unconditional: 1767321, dependent: 6491, dependent conditional: 0, dependent unconditional: 6491, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 913102, independent: 911636, independent conditional: 0, independent unconditional: 911636, dependent: 1466, dependent conditional: 0, dependent unconditional: 1466, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1773812, independent: 855685, independent conditional: 0, independent unconditional: 855685, dependent: 5025, dependent conditional: 0, dependent unconditional: 5025, unknown: 913102, unknown conditional: 0, unknown unconditional: 913102] , Statistics on independence cache: Total cache size (in pairs): 94816, Positive cache size: 94297, Positive conditional cache size: 0, Positive unconditional cache size: 94297, Negative cache size: 519, Negative conditional cache size: 0, Negative unconditional cache size: 519, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.0s, 1493 PlacesBefore, 832 PlacesAfterwards, 1584 TransitionsBefore, 896 TransitionsAfterwards, 2236572 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1015 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 1261 TotalNumberOfCompositions, 7264451 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1842069, independent: 1836195, independent conditional: 0, independent unconditional: 1836195, dependent: 5874, dependent conditional: 0, dependent unconditional: 5874, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1058111, independent: 1056779, independent conditional: 0, independent unconditional: 1056779, dependent: 1332, dependent conditional: 0, dependent unconditional: 1332, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1842069, independent: 779416, independent conditional: 0, independent unconditional: 779416, dependent: 4542, dependent conditional: 0, dependent unconditional: 4542, unknown: 1058111, unknown conditional: 0, unknown unconditional: 1058111] , Statistics on independence cache: Total cache size (in pairs): 91832, Positive cache size: 91272, Positive conditional cache size: 0, Positive unconditional cache size: 91272, Negative cache size: 560, Negative conditional cache size: 0, Negative unconditional cache size: 560, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5s, 1605 PlacesBefore, 894 PlacesAfterwards, 1703 TransitionsBefore, 963 TransitionsAfterwards, 2605204 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1095 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 1361 TotalNumberOfCompositions, 8433763 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2486154, independent: 2479823, independent conditional: 0, independent unconditional: 2479823, dependent: 6331, dependent conditional: 0, dependent unconditional: 6331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1233580, independent: 1231974, independent conditional: 0, independent unconditional: 1231974, dependent: 1606, dependent conditional: 0, dependent unconditional: 1606, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2486154, independent: 1247849, independent conditional: 0, independent unconditional: 1247849, dependent: 4725, dependent conditional: 0, dependent unconditional: 4725, unknown: 1233580, unknown conditional: 0, unknown unconditional: 1233580] , Statistics on independence cache: Total cache size (in pairs): 105754, Positive cache size: 105094, Positive conditional cache size: 0, Positive unconditional cache size: 105094, Negative cache size: 660, Negative conditional cache size: 0, Negative unconditional cache size: 660, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.5s, 1717 PlacesBefore, 958 PlacesAfterwards, 1822 TransitionsBefore, 1032 TransitionsAfterwards, 3001920 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1206 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 236 ConcurrentYvCompositions, 31 ChoiceCompositions, 1494 TotalNumberOfCompositions, 9756630 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2698983, independent: 2692241, independent conditional: 0, independent unconditional: 2692241, dependent: 6742, dependent conditional: 0, dependent unconditional: 6742, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1383634, independent: 1381803, independent conditional: 0, independent unconditional: 1381803, dependent: 1831, dependent conditional: 0, dependent unconditional: 1831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2698983, independent: 1310438, independent conditional: 0, independent unconditional: 1310438, dependent: 4911, dependent conditional: 0, dependent unconditional: 4911, unknown: 1383634, unknown conditional: 0, unknown unconditional: 1383634] , Statistics on independence cache: Total cache size (in pairs): 78086, Positive cache size: 77299, Positive conditional cache size: 0, Positive unconditional cache size: 77299, Negative cache size: 787, Negative conditional cache size: 0, Negative unconditional cache size: 787, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.4s, 1829 PlacesBefore, 1019 PlacesAfterwards, 1941 TransitionsBefore, 1098 TransitionsAfterwards, 3426720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1228 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1534 TotalNumberOfCompositions, 11031770 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2816769, independent: 2809589, independent conditional: 0, independent unconditional: 2809589, dependent: 7180, dependent conditional: 0, dependent unconditional: 7180, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1652246, independent: 1650445, independent conditional: 0, independent unconditional: 1650445, dependent: 1801, dependent conditional: 0, dependent unconditional: 1801, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2816769, independent: 1159144, independent conditional: 0, independent unconditional: 1159144, dependent: 5379, dependent conditional: 0, dependent unconditional: 5379, unknown: 1652246, unknown conditional: 0, unknown unconditional: 1652246] , Statistics on independence cache: Total cache size (in pairs): 166515, Positive cache size: 165825, Positive conditional cache size: 0, Positive unconditional cache size: 165825, Negative cache size: 690, Negative conditional cache size: 0, Negative unconditional cache size: 690, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.4s, 1941 PlacesBefore, 1083 PlacesAfterwards, 2060 TransitionsBefore, 1167 TransitionsAfterwards, 3879604 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1320 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1634 TotalNumberOfCompositions, 12662719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3095076, independent: 3087333, independent conditional: 0, independent unconditional: 3087333, dependent: 7743, dependent conditional: 0, dependent unconditional: 7743, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1856021, independent: 1854429, independent conditional: 0, independent unconditional: 1854429, dependent: 1592, dependent conditional: 0, dependent unconditional: 1592, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3095076, independent: 1232904, independent conditional: 0, independent unconditional: 1232904, dependent: 6151, dependent conditional: 0, dependent unconditional: 6151, unknown: 1856021, unknown conditional: 0, unknown unconditional: 1856021] , Statistics on independence cache: Total cache size (in pairs): 186967, Positive cache size: 186235, Positive conditional cache size: 0, Positive unconditional cache size: 186235, Negative cache size: 732, Negative conditional cache size: 0, Negative unconditional cache size: 732, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.3s, 2053 PlacesBefore, 1145 PlacesAfterwards, 2179 TransitionsBefore, 1234 TransitionsAfterwards, 4360572 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1398 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 284 ConcurrentYvCompositions, 37 ChoiceCompositions, 1740 TotalNumberOfCompositions, 13991446 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3544600, independent: 3536562, independent conditional: 0, independent unconditional: 3536562, dependent: 8038, dependent conditional: 0, dependent unconditional: 8038, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2085692, independent: 2083700, independent conditional: 0, independent unconditional: 2083700, dependent: 1992, dependent conditional: 0, dependent unconditional: 1992, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3544600, independent: 1452862, independent conditional: 0, independent unconditional: 1452862, dependent: 6046, dependent conditional: 0, dependent unconditional: 6046, unknown: 2085692, unknown conditional: 0, unknown unconditional: 2085692] , Statistics on independence cache: Total cache size (in pairs): 205203, Positive cache size: 204430, Positive conditional cache size: 0, Positive unconditional cache size: 204430, Negative cache size: 773, Negative conditional cache size: 0, Negative unconditional cache size: 773, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.1s, 2165 PlacesBefore, 1209 PlacesAfterwards, 2298 TransitionsBefore, 1303 TransitionsAfterwards, 4869624 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1502 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 288 ConcurrentYvCompositions, 39 ChoiceCompositions, 1850 TotalNumberOfCompositions, 15674564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3900667, independent: 3892150, independent conditional: 0, independent unconditional: 3892150, dependent: 8517, dependent conditional: 0, dependent unconditional: 8517, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2326986, independent: 2325282, independent conditional: 0, independent unconditional: 2325282, dependent: 1704, dependent conditional: 0, dependent unconditional: 1704, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3900667, independent: 1566868, independent conditional: 0, independent unconditional: 1566868, dependent: 6813, dependent conditional: 0, dependent unconditional: 6813, unknown: 2326986, unknown conditional: 0, unknown unconditional: 2326986] , Statistics on independence cache: Total cache size (in pairs): 223945, Positive cache size: 223129, Positive conditional cache size: 0, Positive unconditional cache size: 223129, Negative cache size: 816, Negative conditional cache size: 0, Negative unconditional cache size: 816, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.9s, 2277 PlacesBefore, 1271 PlacesAfterwards, 2417 TransitionsBefore, 1370 TransitionsAfterwards, 5406760 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1566 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 304 ConcurrentYvCompositions, 41 ChoiceCompositions, 1932 TotalNumberOfCompositions, 17012896 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4105887, independent: 4097138, independent conditional: 0, independent unconditional: 4097138, dependent: 8749, dependent conditional: 0, dependent unconditional: 8749, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2385618, independent: 2383480, independent conditional: 0, independent unconditional: 2383480, dependent: 2138, dependent conditional: 0, dependent unconditional: 2138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4105887, independent: 1713658, independent conditional: 0, independent unconditional: 1713658, dependent: 6611, dependent conditional: 0, dependent unconditional: 6611, unknown: 2385618, unknown conditional: 0, unknown unconditional: 2385618] , Statistics on independence cache: Total cache size (in pairs): 56884, Positive cache size: 55666, Positive conditional cache size: 0, Positive unconditional cache size: 55666, Negative cache size: 1218, Negative conditional cache size: 0, Negative unconditional cache size: 1218, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 2389 places, 2536 transitions, 5597 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 2389 places, 2536 transitions, 5597 flow and 3536122 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 74 for 79ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-08-26 14:47:45,194 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