/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/35_double_lock_p3_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 14:47:44,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 14:47:44,739 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 14:47:44,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 14:47:44,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 14:47:44,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 14:47:44,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 14:47:44,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 14:47:44,776 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 14:47:44,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 14:47:44,779 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 14:47:44,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 14:47:44,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 14:47:44,781 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 14:47:44,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 14:47:44,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 14:47:44,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 14:47:44,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 14:47:44,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 14:47:44,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 14:47:44,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 14:47:44,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 14:47:44,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 14:47:44,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 14:47:44,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 14:47:44,784 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 14:47:44,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 14:47:44,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:47:44,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 14:47:44,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 14:47:44,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 14:47:44,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 14:47:44,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 14:47:44,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 14:47:44,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 14:47:44,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 14:47:45,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 14:47:45,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 14:47:45,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 14:47:45,096 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 14:47:45,097 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 14:47:45,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/35_double_lock_p3_vs.i [2023-08-26 14:47:46,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 14:47:46,537 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 14:47:46,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/35_double_lock_p3_vs.i [2023-08-26 14:47:46,554 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b1da18f/ee7ff53157214fb2b7343d44eb7fd98f/FLAG2fd5c0594 [2023-08-26 14:47:46,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b1da18f/ee7ff53157214fb2b7343d44eb7fd98f [2023-08-26 14:47:46,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 14:47:46,566 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 14:47:46,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 14:47:46,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 14:47:46,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 14:47:46,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:46,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3b4022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46, skipping insertion in model container [2023-08-26 14:47:46,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:46,616 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 14:47:46,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:47:46,893 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 14:47:46,921 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:47:46,922 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [254] [2023-08-26 14:47:46,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 14:47:46,983 INFO L206 MainTranslator]: Completed translation [2023-08-26 14:47:46,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46 WrapperNode [2023-08-26 14:47:46,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 14:47:46,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 14:47:46,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 14:47:46,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 14:47:46,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,046 INFO L138 Inliner]: procedures = 172, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 129 [2023-08-26 14:47:47,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 14:47:47,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 14:47:47,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 14:47:47,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 14:47:47,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 14:47:47,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 14:47:47,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 14:47:47,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 14:47:47,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (1/1) ... [2023-08-26 14:47:47,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 14:47:47,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 14:47:47,112 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 14:47:47,136 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 14:47:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 14:47:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-26 14:47:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-26 14:47:47,147 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-26 14:47:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-26 14:47:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 14:47:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 14:47:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 14:47:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 14:47:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 14:47:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 14:47:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 14:47:47,150 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 14:47:47,284 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 14:47:47,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 14:47:47,515 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 14:47:47,665 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 14:47:47,667 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-26 14:47:47,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:47:47 BoogieIcfgContainer [2023-08-26 14:47:47,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 14:47:47,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 14:47:47,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 14:47:47,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 14:47:47,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 02:47:46" (1/3) ... [2023-08-26 14:47:47,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38233802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:47:47, skipping insertion in model container [2023-08-26 14:47:47,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 02:47:46" (2/3) ... [2023-08-26 14:47:47,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38233802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 02:47:47, skipping insertion in model container [2023-08-26 14:47:47,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 02:47:47" (3/3) ... [2023-08-26 14:47:47,678 INFO L112 eAbstractionObserver]: Analyzing ICFG 35_double_lock_p3_vs.i [2023-08-26 14:47:47,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 14:47:47,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2023-08-26 14:47:47,691 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 14:47:47,776 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:47:47,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2023-08-26 14:47:47,883 INFO L124 PetriNetUnfolderBase]: 7/119 cut-off events. [2023-08-26 14:47:47,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:47:47,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 119 events. 7/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 267 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2023-08-26 14:47:47,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 226 flow [2023-08-26 14:47:47,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 218 flow [2023-08-26 14:47:47,896 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:47:47,913 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 105 transitions, 218 flow [2023-08-26 14:47:47,916 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 105 transitions, 218 flow [2023-08-26 14:47:47,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 105 transitions, 218 flow [2023-08-26 14:47:47,951 INFO L124 PetriNetUnfolderBase]: 7/117 cut-off events. [2023-08-26 14:47:47,952 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:47:47,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 117 events. 7/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 261 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2023-08-26 14:47:47,957 INFO L119 LiptonReduction]: Number of co-enabled transitions 4340 [2023-08-26 14:47:50,794 INFO L134 LiptonReduction]: Checked pairs total: 9627 [2023-08-26 14:47:50,795 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-26 14:47:50,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:47:50,810 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:47:50,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:47:50,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:47:50,816 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2023-08-26 14:47:50,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 14:47:50,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:47:50,817 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-08-26 14:47:50,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:47:50,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:47:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1853867805, now seen corresponding path program 1 times [2023-08-26 14:47:50,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:47:50,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242343554] [2023-08-26 14:47:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:47:50,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:47:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:50,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:47:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:51,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:47:51,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:47:51,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:47:51,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:47:51,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 14:47:51,021 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:47:51,023 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:47:51,024 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:47:51,024 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-26 14:47:51,091 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:47:51,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 178 transitions, 380 flow [2023-08-26 14:47:51,150 INFO L124 PetriNetUnfolderBase]: 9/177 cut-off events. [2023-08-26 14:47:51,150 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:47:51,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 177 events. 9/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 529 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 186. Up to 6 conditions per place. [2023-08-26 14:47:51,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 178 transitions, 380 flow [2023-08-26 14:47:51,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 149 transitions, 313 flow [2023-08-26 14:47:51,157 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:47:51,157 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 149 transitions, 313 flow [2023-08-26 14:47:51,158 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 149 transitions, 313 flow [2023-08-26 14:47:51,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 149 transitions, 313 flow [2023-08-26 14:47:51,194 INFO L124 PetriNetUnfolderBase]: 9/175 cut-off events. [2023-08-26 14:47:51,194 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:47:51,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 175 events. 9/175 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 524 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 163. Up to 6 conditions per place. [2023-08-26 14:47:51,202 INFO L119 LiptonReduction]: Number of co-enabled transitions 11614 [2023-08-26 14:47:54,464 INFO L134 LiptonReduction]: Checked pairs total: 40135 [2023-08-26 14:47:54,465 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-08-26 14:47:54,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:47:54,471 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:47:54,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:47:54,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:47:54,482 INFO L124 PetriNetUnfolderBase]: 2/64 cut-off events. [2023-08-26 14:47:54,482 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 14:47:54,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:47:54,483 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-08-26 14:47:54,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:47:54,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:47:54,483 INFO L85 PathProgramCache]: Analyzing trace with hash 54785579, now seen corresponding path program 1 times [2023-08-26 14:47:54,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:47:54,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794688009] [2023-08-26 14:47:54,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:47:54,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:47:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:54,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:47:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:54,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:47:54,570 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:47:54,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:47:54,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:47:54,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 14:47:54,570 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:47:54,571 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:47:54,571 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:47:54,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-26 14:47:54,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:47:54,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 248 transitions, 538 flow [2023-08-26 14:47:54,677 INFO L124 PetriNetUnfolderBase]: 11/235 cut-off events. [2023-08-26 14:47:54,677 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:47:54,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 235 events. 11/235 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 809 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 249. Up to 8 conditions per place. [2023-08-26 14:47:54,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 248 transitions, 538 flow [2023-08-26 14:47:54,681 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 193 transitions, 410 flow [2023-08-26 14:47:54,681 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:47:54,681 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 195 places, 193 transitions, 410 flow [2023-08-26 14:47:54,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 195 places, 193 transitions, 410 flow [2023-08-26 14:47:54,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 193 transitions, 410 flow [2023-08-26 14:47:54,712 INFO L124 PetriNetUnfolderBase]: 11/233 cut-off events. [2023-08-26 14:47:54,712 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:47:54,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 233 events. 11/233 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 806 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 226. Up to 8 conditions per place. [2023-08-26 14:47:54,724 INFO L119 LiptonReduction]: Number of co-enabled transitions 22672 [2023-08-26 14:47:59,021 INFO L134 LiptonReduction]: Checked pairs total: 89048 [2023-08-26 14:47:59,021 INFO L136 LiptonReduction]: Total number of compositions: 162 [2023-08-26 14:47:59,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:47:59,024 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:47:59,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:47:59,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:47:59,036 INFO L124 PetriNetUnfolderBase]: 2/101 cut-off events. [2023-08-26 14:47:59,036 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-26 14:47:59,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:47:59,037 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:47:59,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:47:59,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:47:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1805464748, now seen corresponding path program 1 times [2023-08-26 14:47:59,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:47:59,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813574394] [2023-08-26 14:47:59,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:47:59,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:47:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:59,080 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:47:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:47:59,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:47:59,114 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:47:59,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:47:59,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:47:59,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 14:47:59,114 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:47:59,115 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:47:59,115 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:47:59,115 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-26 14:47:59,192 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:47:59,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 318 transitions, 700 flow [2023-08-26 14:47:59,242 INFO L124 PetriNetUnfolderBase]: 13/293 cut-off events. [2023-08-26 14:47:59,243 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:47:59,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 293 events. 13/293 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1089 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 313. Up to 10 conditions per place. [2023-08-26 14:47:59,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 315 places, 318 transitions, 700 flow [2023-08-26 14:47:59,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 240 places, 237 transitions, 509 flow [2023-08-26 14:47:59,248 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:47:59,249 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 240 places, 237 transitions, 509 flow [2023-08-26 14:47:59,249 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 240 places, 237 transitions, 509 flow [2023-08-26 14:47:59,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 237 transitions, 509 flow [2023-08-26 14:47:59,286 INFO L124 PetriNetUnfolderBase]: 13/291 cut-off events. [2023-08-26 14:47:59,287 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:47:59,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 291 events. 13/291 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1083 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 290. Up to 10 conditions per place. [2023-08-26 14:47:59,303 INFO L119 LiptonReduction]: Number of co-enabled transitions 37514 [2023-08-26 14:48:04,375 INFO L134 LiptonReduction]: Checked pairs total: 176182 [2023-08-26 14:48:04,375 INFO L136 LiptonReduction]: Total number of compositions: 197 [2023-08-26 14:48:04,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:04,378 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:04,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:04,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:04,392 INFO L124 PetriNetUnfolderBase]: 4/137 cut-off events. [2023-08-26 14:48:04,392 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-26 14:48:04,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:04,392 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:04,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:04,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 52018026, now seen corresponding path program 1 times [2023-08-26 14:48:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:04,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462244155] [2023-08-26 14:48:04,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:04,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:04,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:04,442 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:04,442 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:04,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:04,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 14:48:04,443 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:04,443 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:04,443 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:04,443 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-26 14:48:04,518 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:04,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 384 places, 388 transitions, 866 flow [2023-08-26 14:48:04,575 INFO L124 PetriNetUnfolderBase]: 15/351 cut-off events. [2023-08-26 14:48:04,575 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:48:04,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 351 events. 15/351 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1399 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 378. Up to 12 conditions per place. [2023-08-26 14:48:04,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 384 places, 388 transitions, 866 flow [2023-08-26 14:48:04,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 281 transitions, 610 flow [2023-08-26 14:48:04,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:04,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 281 transitions, 610 flow [2023-08-26 14:48:04,583 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 281 transitions, 610 flow [2023-08-26 14:48:04,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 281 transitions, 610 flow [2023-08-26 14:48:04,630 INFO L124 PetriNetUnfolderBase]: 15/349 cut-off events. [2023-08-26 14:48:04,631 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:48:04,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 349 events. 15/349 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1393 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 355. Up to 12 conditions per place. [2023-08-26 14:48:04,649 INFO L119 LiptonReduction]: Number of co-enabled transitions 56140 [2023-08-26 14:48:10,471 INFO L134 LiptonReduction]: Checked pairs total: 239729 [2023-08-26 14:48:10,471 INFO L136 LiptonReduction]: Total number of compositions: 247 [2023-08-26 14:48:10,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:10,474 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:10,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:10,494 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:10,495 INFO L124 PetriNetUnfolderBase]: 5/173 cut-off events. [2023-08-26 14:48:10,495 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-26 14:48:10,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:10,495 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:10,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:10,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 307473059, now seen corresponding path program 1 times [2023-08-26 14:48:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129227562] [2023-08-26 14:48:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:10,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:10,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:10,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:10,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:10,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:10,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:10,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 14:48:10,558 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:10,559 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:10,559 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:10,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-26 14:48:10,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:10,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 458 transitions, 1036 flow [2023-08-26 14:48:10,726 INFO L124 PetriNetUnfolderBase]: 17/409 cut-off events. [2023-08-26 14:48:10,727 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:48:10,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 409 events. 17/409 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1681 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 444. Up to 14 conditions per place. [2023-08-26 14:48:10,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 458 transitions, 1036 flow [2023-08-26 14:48:10,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 325 transitions, 713 flow [2023-08-26 14:48:10,737 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:10,737 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 330 places, 325 transitions, 713 flow [2023-08-26 14:48:10,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 330 places, 325 transitions, 713 flow [2023-08-26 14:48:10,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 325 transitions, 713 flow [2023-08-26 14:48:10,803 INFO L124 PetriNetUnfolderBase]: 17/407 cut-off events. [2023-08-26 14:48:10,803 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:48:10,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 407 events. 17/407 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1685 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 421. Up to 14 conditions per place. [2023-08-26 14:48:10,867 INFO L119 LiptonReduction]: Number of co-enabled transitions 78550 [2023-08-26 14:48:18,615 INFO L134 LiptonReduction]: Checked pairs total: 349985 [2023-08-26 14:48:18,615 INFO L136 LiptonReduction]: Total number of compositions: 308 [2023-08-26 14:48:18,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:18,617 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:18,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:18,642 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:18,642 INFO L124 PetriNetUnfolderBase]: 5/209 cut-off events. [2023-08-26 14:48:18,643 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-26 14:48:18,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:18,643 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:18,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:18,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:18,643 INFO L85 PathProgramCache]: Analyzing trace with hash -610403604, now seen corresponding path program 1 times [2023-08-26 14:48:18,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:18,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359052058] [2023-08-26 14:48:18,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:18,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:18,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:18,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:18,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:18,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:18,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:18,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 14:48:18,680 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:18,681 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:18,681 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:18,681 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-26 14:48:18,819 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:18,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 522 places, 528 transitions, 1210 flow [2023-08-26 14:48:18,904 INFO L124 PetriNetUnfolderBase]: 19/467 cut-off events. [2023-08-26 14:48:18,904 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:48:18,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 467 events. 19/467 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1985 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 511. Up to 16 conditions per place. [2023-08-26 14:48:18,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 522 places, 528 transitions, 1210 flow [2023-08-26 14:48:18,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 369 transitions, 818 flow [2023-08-26 14:48:18,918 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:18,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 375 places, 369 transitions, 818 flow [2023-08-26 14:48:18,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 375 places, 369 transitions, 818 flow [2023-08-26 14:48:18,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 369 transitions, 818 flow [2023-08-26 14:48:18,996 INFO L124 PetriNetUnfolderBase]: 19/465 cut-off events. [2023-08-26 14:48:18,996 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:48:19,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 465 events. 19/465 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1983 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 488. Up to 16 conditions per place. [2023-08-26 14:48:19,032 INFO L119 LiptonReduction]: Number of co-enabled transitions 104744 [2023-08-26 14:48:26,530 INFO L134 LiptonReduction]: Checked pairs total: 464862 [2023-08-26 14:48:26,530 INFO L136 LiptonReduction]: Total number of compositions: 308 [2023-08-26 14:48:26,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:26,532 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:26,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:26,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:26,564 INFO L124 PetriNetUnfolderBase]: 7/244 cut-off events. [2023-08-26 14:48:26,564 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-26 14:48:26,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:26,564 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:26,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:26,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 631172987, now seen corresponding path program 1 times [2023-08-26 14:48:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:26,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620895387] [2023-08-26 14:48:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:26,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:26,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:26,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:26,602 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:26,603 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:26,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 14:48:26,603 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:26,603 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:26,603 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:26,603 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-26 14:48:26,710 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:26,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 591 places, 598 transitions, 1388 flow [2023-08-26 14:48:26,816 INFO L124 PetriNetUnfolderBase]: 21/525 cut-off events. [2023-08-26 14:48:26,816 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:48:26,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 525 events. 21/525 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2272 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 579. Up to 18 conditions per place. [2023-08-26 14:48:26,829 INFO L82 GeneralOperation]: Start removeDead. Operand has 591 places, 598 transitions, 1388 flow [2023-08-26 14:48:26,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 420 places, 413 transitions, 925 flow [2023-08-26 14:48:26,833 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:26,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 420 places, 413 transitions, 925 flow [2023-08-26 14:48:26,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 420 places, 413 transitions, 925 flow [2023-08-26 14:48:26,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 420 places, 413 transitions, 925 flow [2023-08-26 14:48:26,930 INFO L124 PetriNetUnfolderBase]: 21/523 cut-off events. [2023-08-26 14:48:26,930 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:48:26,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 523 events. 21/523 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2256 event pairs, 0 based on Foata normal form. 0/338 useless extension candidates. Maximal degree in co-relation 556. Up to 18 conditions per place. [2023-08-26 14:48:26,970 INFO L119 LiptonReduction]: Number of co-enabled transitions 134722 [2023-08-26 14:48:35,152 INFO L134 LiptonReduction]: Checked pairs total: 606089 [2023-08-26 14:48:35,153 INFO L136 LiptonReduction]: Total number of compositions: 350 [2023-08-26 14:48:35,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:35,155 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:35,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:35,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:35,194 INFO L124 PetriNetUnfolderBase]: 8/282 cut-off events. [2023-08-26 14:48:35,194 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-26 14:48:35,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:35,194 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:35,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:35,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash 765850867, now seen corresponding path program 1 times [2023-08-26 14:48:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:35,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022913472] [2023-08-26 14:48:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:35,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:35,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:35,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:35,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:35,239 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:35,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:35,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 14:48:35,239 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:35,240 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:35,240 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:35,240 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-26 14:48:35,367 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:35,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 660 places, 668 transitions, 1570 flow [2023-08-26 14:48:35,499 INFO L124 PetriNetUnfolderBase]: 23/583 cut-off events. [2023-08-26 14:48:35,500 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:48:35,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 583 events. 23/583 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2566 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 648. Up to 20 conditions per place. [2023-08-26 14:48:35,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 668 transitions, 1570 flow [2023-08-26 14:48:35,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 465 places, 457 transitions, 1034 flow [2023-08-26 14:48:35,517 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:35,517 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 457 transitions, 1034 flow [2023-08-26 14:48:35,517 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 457 transitions, 1034 flow [2023-08-26 14:48:35,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 457 transitions, 1034 flow [2023-08-26 14:48:35,704 INFO L124 PetriNetUnfolderBase]: 23/581 cut-off events. [2023-08-26 14:48:35,704 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:48:35,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 581 events. 23/581 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2534 event pairs, 0 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 625. Up to 20 conditions per place. [2023-08-26 14:48:35,750 INFO L119 LiptonReduction]: Number of co-enabled transitions 168484 [2023-08-26 14:48:44,817 INFO L134 LiptonReduction]: Checked pairs total: 774945 [2023-08-26 14:48:44,818 INFO L136 LiptonReduction]: Total number of compositions: 384 [2023-08-26 14:48:44,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:44,819 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:44,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:44,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:44,867 INFO L124 PetriNetUnfolderBase]: 9/318 cut-off events. [2023-08-26 14:48:44,868 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-26 14:48:44,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:44,868 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:44,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:44,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1237506984, now seen corresponding path program 1 times [2023-08-26 14:48:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:44,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615130708] [2023-08-26 14:48:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:44,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:44,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:44,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:44,959 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:44,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:44,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:44,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 14:48:44,959 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:44,960 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:44,960 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:44,960 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-26 14:48:45,096 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:45,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 729 places, 738 transitions, 1756 flow [2023-08-26 14:48:45,219 INFO L124 PetriNetUnfolderBase]: 25/641 cut-off events. [2023-08-26 14:48:45,219 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:48:45,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 641 events. 25/641 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2885 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 718. Up to 22 conditions per place. [2023-08-26 14:48:45,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 729 places, 738 transitions, 1756 flow [2023-08-26 14:48:45,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 510 places, 501 transitions, 1145 flow [2023-08-26 14:48:45,244 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:45,244 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 510 places, 501 transitions, 1145 flow [2023-08-26 14:48:45,245 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 510 places, 501 transitions, 1145 flow [2023-08-26 14:48:45,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 510 places, 501 transitions, 1145 flow [2023-08-26 14:48:45,382 INFO L124 PetriNetUnfolderBase]: 25/639 cut-off events. [2023-08-26 14:48:45,382 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:48:45,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 639 events. 25/639 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2874 event pairs, 0 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 695. Up to 22 conditions per place. [2023-08-26 14:48:45,449 INFO L119 LiptonReduction]: Number of co-enabled transitions 206030 [2023-08-26 14:48:55,802 INFO L134 LiptonReduction]: Checked pairs total: 953235 [2023-08-26 14:48:55,802 INFO L136 LiptonReduction]: Total number of compositions: 441 [2023-08-26 14:48:55,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:48:55,804 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:48:55,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:48:55,847 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:48:55,847 INFO L124 PetriNetUnfolderBase]: 10/353 cut-off events. [2023-08-26 14:48:55,847 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-26 14:48:55,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:48:55,847 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:48:55,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:48:55,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:48:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1909824514, now seen corresponding path program 1 times [2023-08-26 14:48:55,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:48:55,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490614640] [2023-08-26 14:48:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:48:55,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:48:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:55,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:48:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:48:55,901 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:48:55,901 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:48:55,901 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:48:55,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:48:55,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 14:48:55,901 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:48:55,902 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:48:55,902 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:48:55,902 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-26 14:48:56,048 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:48:56,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 798 places, 808 transitions, 1946 flow [2023-08-26 14:48:56,214 INFO L124 PetriNetUnfolderBase]: 27/699 cut-off events. [2023-08-26 14:48:56,214 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:48:56,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 812 conditions, 699 events. 27/699 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3162 event pairs, 0 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 789. Up to 24 conditions per place. [2023-08-26 14:48:56,232 INFO L82 GeneralOperation]: Start removeDead. Operand has 798 places, 808 transitions, 1946 flow [2023-08-26 14:48:56,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 555 places, 545 transitions, 1258 flow [2023-08-26 14:48:56,236 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:48:56,236 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 555 places, 545 transitions, 1258 flow [2023-08-26 14:48:56,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 555 places, 545 transitions, 1258 flow [2023-08-26 14:48:56,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 555 places, 545 transitions, 1258 flow [2023-08-26 14:48:56,481 INFO L124 PetriNetUnfolderBase]: 27/697 cut-off events. [2023-08-26 14:48:56,481 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:48:56,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 697 events. 27/697 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3145 event pairs, 0 based on Foata normal form. 0/449 useless extension candidates. Maximal degree in co-relation 766. Up to 24 conditions per place. [2023-08-26 14:48:56,548 INFO L119 LiptonReduction]: Number of co-enabled transitions 247360 [2023-08-26 14:49:07,842 INFO L134 LiptonReduction]: Checked pairs total: 1313416 [2023-08-26 14:49:07,843 INFO L136 LiptonReduction]: Total number of compositions: 464 [2023-08-26 14:49:07,844 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:49:07,844 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:49:07,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:49:07,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:49:07,942 INFO L124 PetriNetUnfolderBase]: 11/390 cut-off events. [2023-08-26 14:49:07,942 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-26 14:49:07,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:49:07,943 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:49:07,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:49:07,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:49:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash 989513917, now seen corresponding path program 1 times [2023-08-26 14:49:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:49:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998195971] [2023-08-26 14:49:07,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:49:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:49:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:07,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:49:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:07,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:49:07,987 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:49:07,987 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:49:07,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:49:07,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 14:49:07,988 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:49:07,988 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:49:07,988 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:49:07,988 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-26 14:49:08,138 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:49:08,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 867 places, 878 transitions, 2140 flow [2023-08-26 14:49:08,343 INFO L124 PetriNetUnfolderBase]: 29/757 cut-off events. [2023-08-26 14:49:08,343 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:49:08,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 757 events. 29/757 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3425 event pairs, 0 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 861. Up to 26 conditions per place. [2023-08-26 14:49:08,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 867 places, 878 transitions, 2140 flow [2023-08-26 14:49:08,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 600 places, 589 transitions, 1373 flow [2023-08-26 14:49:08,377 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:49:08,377 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 600 places, 589 transitions, 1373 flow [2023-08-26 14:49:08,377 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 600 places, 589 transitions, 1373 flow [2023-08-26 14:49:08,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 600 places, 589 transitions, 1373 flow [2023-08-26 14:49:08,550 INFO L124 PetriNetUnfolderBase]: 29/755 cut-off events. [2023-08-26 14:49:08,550 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:49:08,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 755 events. 29/755 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3446 event pairs, 0 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 838. Up to 26 conditions per place. [2023-08-26 14:49:08,620 INFO L119 LiptonReduction]: Number of co-enabled transitions 292474 [2023-08-26 14:49:20,071 INFO L134 LiptonReduction]: Checked pairs total: 1375892 [2023-08-26 14:49:20,072 INFO L136 LiptonReduction]: Total number of compositions: 482 [2023-08-26 14:49:20,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:49:20,074 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:49:20,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:49:20,134 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:49:20,134 INFO L124 PetriNetUnfolderBase]: 12/425 cut-off events. [2023-08-26 14:49:20,134 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-26 14:49:20,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:49:20,135 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:49:20,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:49:20,135 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:49:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1465950310, now seen corresponding path program 1 times [2023-08-26 14:49:20,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:49:20,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422546282] [2023-08-26 14:49:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:49:20,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:49:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:20,160 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:49:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:20,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:49:20,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:49:20,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:49:20,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:49:20,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 14:49:20,184 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:49:20,185 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:49:20,185 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:49:20,185 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-26 14:49:20,348 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:49:20,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 936 places, 948 transitions, 2338 flow [2023-08-26 14:49:20,570 INFO L124 PetriNetUnfolderBase]: 31/815 cut-off events. [2023-08-26 14:49:20,571 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:49:20,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 815 events. 31/815 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3746 event pairs, 0 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 934. Up to 28 conditions per place. [2023-08-26 14:49:20,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 936 places, 948 transitions, 2338 flow [2023-08-26 14:49:20,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 645 places, 633 transitions, 1490 flow [2023-08-26 14:49:20,599 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:49:20,599 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 645 places, 633 transitions, 1490 flow [2023-08-26 14:49:20,600 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 645 places, 633 transitions, 1490 flow [2023-08-26 14:49:20,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 633 transitions, 1490 flow [2023-08-26 14:49:20,796 INFO L124 PetriNetUnfolderBase]: 31/813 cut-off events. [2023-08-26 14:49:20,797 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:49:20,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 813 events. 31/813 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3747 event pairs, 0 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 911. Up to 28 conditions per place. [2023-08-26 14:49:20,898 INFO L119 LiptonReduction]: Number of co-enabled transitions 341372 [2023-08-26 14:49:33,634 INFO L134 LiptonReduction]: Checked pairs total: 1871670 [2023-08-26 14:49:33,635 INFO L136 LiptonReduction]: Total number of compositions: 532 [2023-08-26 14:49:33,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:49:33,636 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:49:33,636 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:49:33,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:49:33,725 INFO L124 PetriNetUnfolderBase]: 12/460 cut-off events. [2023-08-26 14:49:33,725 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-26 14:49:33,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:49:33,725 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:49:33,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:49:33,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:49:33,726 INFO L85 PathProgramCache]: Analyzing trace with hash 797560773, now seen corresponding path program 1 times [2023-08-26 14:49:33,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:49:33,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484767107] [2023-08-26 14:49:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:49:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:49:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:33,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:49:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:33,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:49:33,779 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:49:33,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:49:33,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:49:33,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 14:49:33,779 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:49:33,780 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:49:33,780 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:49:33,780 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-26 14:49:33,954 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:49:33,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 1018 transitions, 2540 flow [2023-08-26 14:49:34,330 INFO L124 PetriNetUnfolderBase]: 33/873 cut-off events. [2023-08-26 14:49:34,330 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:49:34,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 873 events. 33/873 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4065 event pairs, 0 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 1008. Up to 30 conditions per place. [2023-08-26 14:49:34,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 1005 places, 1018 transitions, 2540 flow [2023-08-26 14:49:34,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 690 places, 677 transitions, 1609 flow [2023-08-26 14:49:34,367 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:49:34,367 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 690 places, 677 transitions, 1609 flow [2023-08-26 14:49:34,367 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 690 places, 677 transitions, 1609 flow [2023-08-26 14:49:34,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 690 places, 677 transitions, 1609 flow [2023-08-26 14:49:34,607 INFO L124 PetriNetUnfolderBase]: 33/871 cut-off events. [2023-08-26 14:49:34,607 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:49:34,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 871 events. 33/871 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4052 event pairs, 0 based on Foata normal form. 0/560 useless extension candidates. Maximal degree in co-relation 985. Up to 30 conditions per place. [2023-08-26 14:49:34,697 INFO L119 LiptonReduction]: Number of co-enabled transitions 394054 [2023-08-26 14:49:49,069 INFO L134 LiptonReduction]: Checked pairs total: 2135493 [2023-08-26 14:49:49,069 INFO L136 LiptonReduction]: Total number of compositions: 611 [2023-08-26 14:49:49,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:49:49,071 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:49:49,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:49:49,153 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:49:49,153 INFO L124 PetriNetUnfolderBase]: 14/498 cut-off events. [2023-08-26 14:49:49,153 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-26 14:49:49,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:49:49,153 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:49:49,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:49:49,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:49:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1946362766, now seen corresponding path program 1 times [2023-08-26 14:49:49,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:49:49,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501621574] [2023-08-26 14:49:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:49:49,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:49:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:49,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:49:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:49:49,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:49:49,212 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:49:49,213 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:49:49,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:49:49,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 14:49:49,213 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:49:49,213 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:49:49,214 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:49:49,214 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-26 14:49:49,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:49:49,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1074 places, 1088 transitions, 2746 flow [2023-08-26 14:49:49,687 INFO L124 PetriNetUnfolderBase]: 35/931 cut-off events. [2023-08-26 14:49:49,688 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:49:49,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 931 events. 35/931 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4366 event pairs, 0 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 1083. Up to 32 conditions per place. [2023-08-26 14:49:49,734 INFO L82 GeneralOperation]: Start removeDead. Operand has 1074 places, 1088 transitions, 2746 flow [2023-08-26 14:49:49,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 735 places, 721 transitions, 1730 flow [2023-08-26 14:49:49,740 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:49:49,740 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 735 places, 721 transitions, 1730 flow [2023-08-26 14:49:49,740 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 735 places, 721 transitions, 1730 flow [2023-08-26 14:49:49,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 735 places, 721 transitions, 1730 flow [2023-08-26 14:49:49,960 INFO L124 PetriNetUnfolderBase]: 35/929 cut-off events. [2023-08-26 14:49:49,961 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:49:49,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1098 conditions, 929 events. 35/929 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4322 event pairs, 0 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 1060. Up to 32 conditions per place. [2023-08-26 14:49:50,073 INFO L119 LiptonReduction]: Number of co-enabled transitions 450520 [2023-08-26 14:50:04,935 INFO L134 LiptonReduction]: Checked pairs total: 2138410 [2023-08-26 14:50:04,936 INFO L136 LiptonReduction]: Total number of compositions: 619 [2023-08-26 14:50:04,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:50:04,937 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:50:04,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:50:05,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:50:05,025 INFO L124 PetriNetUnfolderBase]: 15/533 cut-off events. [2023-08-26 14:50:05,025 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-26 14:50:05,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:50:05,025 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, 1, 1] [2023-08-26 14:50:05,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:50:05,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:50:05,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1048897699, now seen corresponding path program 1 times [2023-08-26 14:50:05,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:50:05,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702731059] [2023-08-26 14:50:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:50:05,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:50:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:05,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:50:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:05,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:50:05,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:50:05,084 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:50:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:50:05,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 14:50:05,085 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:50:05,085 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:50:05,085 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:50:05,085 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-26 14:50:05,279 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:50:05,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1143 places, 1158 transitions, 2956 flow [2023-08-26 14:50:05,742 INFO L124 PetriNetUnfolderBase]: 37/989 cut-off events. [2023-08-26 14:50:05,742 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:50:05,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1192 conditions, 989 events. 37/989 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4608 event pairs, 0 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 1159. Up to 34 conditions per place. [2023-08-26 14:50:05,766 INFO L82 GeneralOperation]: Start removeDead. Operand has 1143 places, 1158 transitions, 2956 flow [2023-08-26 14:50:05,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 780 places, 765 transitions, 1853 flow [2023-08-26 14:50:05,771 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:50:05,771 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 780 places, 765 transitions, 1853 flow [2023-08-26 14:50:05,772 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 780 places, 765 transitions, 1853 flow [2023-08-26 14:50:05,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 780 places, 765 transitions, 1853 flow [2023-08-26 14:50:06,098 INFO L124 PetriNetUnfolderBase]: 37/987 cut-off events. [2023-08-26 14:50:06,098 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:50:06,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 987 events. 37/987 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4617 event pairs, 0 based on Foata normal form. 0/634 useless extension candidates. Maximal degree in co-relation 1136. Up to 34 conditions per place. [2023-08-26 14:50:06,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 510770 [2023-08-26 14:50:22,030 INFO L134 LiptonReduction]: Checked pairs total: 2450685 [2023-08-26 14:50:22,031 INFO L136 LiptonReduction]: Total number of compositions: 656 [2023-08-26 14:50:22,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:50:22,033 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:50:22,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:50:22,162 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:50:22,163 INFO L124 PetriNetUnfolderBase]: 16/570 cut-off events. [2023-08-26 14:50:22,163 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-26 14:50:22,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:50:22,163 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, 1, 1] [2023-08-26 14:50:22,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:50:22,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:50:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash -523678487, now seen corresponding path program 1 times [2023-08-26 14:50:22,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:50:22,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255857630] [2023-08-26 14:50:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:50:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:50:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:22,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:50:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:22,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:50:22,227 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:50:22,227 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:50:22,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:50:22,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 14:50:22,227 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:50:22,227 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:50:22,228 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:50:22,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-26 14:50:22,422 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:50:22,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1212 places, 1228 transitions, 3170 flow [2023-08-26 14:50:22,791 INFO L124 PetriNetUnfolderBase]: 39/1047 cut-off events. [2023-08-26 14:50:22,791 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:50:22,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 1047 events. 39/1047 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4879 event pairs, 0 based on Foata normal form. 0/671 useless extension candidates. Maximal degree in co-relation 1236. Up to 36 conditions per place. [2023-08-26 14:50:22,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 1212 places, 1228 transitions, 3170 flow [2023-08-26 14:50:22,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 825 places, 809 transitions, 1978 flow [2023-08-26 14:50:22,842 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:50:22,842 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 825 places, 809 transitions, 1978 flow [2023-08-26 14:50:22,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 825 places, 809 transitions, 1978 flow [2023-08-26 14:50:22,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 809 transitions, 1978 flow [2023-08-26 14:50:23,146 INFO L124 PetriNetUnfolderBase]: 39/1045 cut-off events. [2023-08-26 14:50:23,146 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:50:23,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 1045 events. 39/1045 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4877 event pairs, 0 based on Foata normal form. 0/671 useless extension candidates. Maximal degree in co-relation 1213. Up to 36 conditions per place. [2023-08-26 14:50:23,295 INFO L119 LiptonReduction]: Number of co-enabled transitions 574804 [2023-08-26 14:50:40,052 INFO L134 LiptonReduction]: Checked pairs total: 2756876 [2023-08-26 14:50:40,052 INFO L136 LiptonReduction]: Total number of compositions: 688 [2023-08-26 14:50:40,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:50:40,054 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:50:40,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:50:40,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:50:40,179 INFO L124 PetriNetUnfolderBase]: 17/606 cut-off events. [2023-08-26 14:50:40,179 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-26 14:50:40,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:50:40,180 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, 1, 1] [2023-08-26 14:50:40,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:50:40,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:50:40,180 INFO L85 PathProgramCache]: Analyzing trace with hash -890369201, now seen corresponding path program 1 times [2023-08-26 14:50:40,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:50:40,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636467020] [2023-08-26 14:50:40,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:50:40,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:50:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:40,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:50:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:50:40,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:50:40,245 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:50:40,246 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:50:40,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:50:40,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 14:50:40,246 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:50:40,246 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:50:40,246 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:50:40,246 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-26 14:50:40,470 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:50:40,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1281 places, 1298 transitions, 3388 flow [2023-08-26 14:50:40,912 INFO L124 PetriNetUnfolderBase]: 41/1105 cut-off events. [2023-08-26 14:50:40,912 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:50:40,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 1105 events. 41/1105 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5181 event pairs, 0 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 1314. Up to 38 conditions per place. [2023-08-26 14:50:40,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 1281 places, 1298 transitions, 3388 flow [2023-08-26 14:50:40,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 870 places, 853 transitions, 2105 flow [2023-08-26 14:50:40,952 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:50:40,952 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 870 places, 853 transitions, 2105 flow [2023-08-26 14:50:40,952 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 870 places, 853 transitions, 2105 flow [2023-08-26 14:50:40,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 870 places, 853 transitions, 2105 flow [2023-08-26 14:50:41,287 INFO L124 PetriNetUnfolderBase]: 41/1103 cut-off events. [2023-08-26 14:50:41,287 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:50:41,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 1103 events. 41/1103 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5197 event pairs, 0 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 1291. Up to 38 conditions per place. [2023-08-26 14:50:41,464 INFO L119 LiptonReduction]: Number of co-enabled transitions 642622 [2023-08-26 14:51:00,402 INFO L134 LiptonReduction]: Checked pairs total: 3523180 [2023-08-26 14:51:00,402 INFO L136 LiptonReduction]: Total number of compositions: 762 [2023-08-26 14:51:00,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:51:00,404 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:51:00,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:51:00,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:51:00,520 INFO L124 PetriNetUnfolderBase]: 18/641 cut-off events. [2023-08-26 14:51:00,520 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-26 14:51:00,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:51:00,520 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, 1, 1] [2023-08-26 14:51:00,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:51:00,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:51:00,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2028473136, now seen corresponding path program 1 times [2023-08-26 14:51:00,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:51:00,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856585941] [2023-08-26 14:51:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:51:00,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:51:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:00,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:51:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:00,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:51:00,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:51:00,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:51:00,605 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:51:00,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 14:51:00,605 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:51:00,606 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:51:00,606 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:51:00,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-26 14:51:00,807 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:51:00,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1350 places, 1368 transitions, 3610 flow [2023-08-26 14:51:01,176 INFO L124 PetriNetUnfolderBase]: 43/1163 cut-off events. [2023-08-26 14:51:01,177 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:51:01,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1163 events. 43/1163 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5538 event pairs, 0 based on Foata normal form. 0/745 useless extension candidates. Maximal degree in co-relation 1393. Up to 40 conditions per place. [2023-08-26 14:51:01,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 1350 places, 1368 transitions, 3610 flow [2023-08-26 14:51:01,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 915 places, 897 transitions, 2234 flow [2023-08-26 14:51:01,237 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:51:01,237 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 915 places, 897 transitions, 2234 flow [2023-08-26 14:51:01,237 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 915 places, 897 transitions, 2234 flow [2023-08-26 14:51:01,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 915 places, 897 transitions, 2234 flow [2023-08-26 14:51:01,667 INFO L124 PetriNetUnfolderBase]: 43/1161 cut-off events. [2023-08-26 14:51:01,668 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:51:01,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 1161 events. 43/1161 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5488 event pairs, 0 based on Foata normal form. 0/745 useless extension candidates. Maximal degree in co-relation 1370. Up to 40 conditions per place. [2023-08-26 14:51:01,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 714224 [2023-08-26 14:51:21,057 INFO L134 LiptonReduction]: Checked pairs total: 3967700 [2023-08-26 14:51:21,057 INFO L136 LiptonReduction]: Total number of compositions: 777 [2023-08-26 14:51:21,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:51:21,059 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:51:21,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:51:21,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:51:21,244 INFO L124 PetriNetUnfolderBase]: 18/678 cut-off events. [2023-08-26 14:51:21,244 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-26 14:51:21,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:51:21,245 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, 1, 1] [2023-08-26 14:51:21,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:51:21,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:51:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash -481744821, now seen corresponding path program 1 times [2023-08-26 14:51:21,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:51:21,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151337147] [2023-08-26 14:51:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:51:21,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:51:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:21,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:51:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:21,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:51:21,343 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:51:21,343 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:51:21,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:51:21,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 14:51:21,344 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:51:21,345 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:51:21,345 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:51:21,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-26 14:51:21,592 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:51:21,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1419 places, 1438 transitions, 3836 flow [2023-08-26 14:51:21,998 INFO L124 PetriNetUnfolderBase]: 45/1221 cut-off events. [2023-08-26 14:51:21,999 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:51:22,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 1221 events. 45/1221 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5829 event pairs, 0 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 1473. Up to 42 conditions per place. [2023-08-26 14:51:22,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 1419 places, 1438 transitions, 3836 flow [2023-08-26 14:51:22,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 960 places, 941 transitions, 2365 flow [2023-08-26 14:51:22,072 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:51:22,072 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 960 places, 941 transitions, 2365 flow [2023-08-26 14:51:22,072 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 960 places, 941 transitions, 2365 flow [2023-08-26 14:51:22,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 960 places, 941 transitions, 2365 flow [2023-08-26 14:51:22,610 INFO L124 PetriNetUnfolderBase]: 45/1219 cut-off events. [2023-08-26 14:51:22,610 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:51:22,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1493 conditions, 1219 events. 45/1219 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5776 event pairs, 0 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 1450. Up to 42 conditions per place. [2023-08-26 14:51:22,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 789610 [2023-08-26 14:51:42,286 INFO L134 LiptonReduction]: Checked pairs total: 3793212 [2023-08-26 14:51:42,286 INFO L136 LiptonReduction]: Total number of compositions: 787 [2023-08-26 14:51:42,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:51:42,288 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:51:42,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:51:42,447 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:51:42,447 INFO L124 PetriNetUnfolderBase]: 20/713 cut-off events. [2023-08-26 14:51:42,447 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-26 14:51:42,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:51:42,447 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, 1, 1] [2023-08-26 14:51:42,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:51:42,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:51:42,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1554704064, now seen corresponding path program 1 times [2023-08-26 14:51:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:51:42,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990085479] [2023-08-26 14:51:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:51:42,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:51:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:42,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:51:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:51:42,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:51:42,524 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:51:42,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:51:42,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:51:42,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 14:51:42,524 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:51:42,525 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:51:42,525 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:51:42,525 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-26 14:51:42,738 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:51:42,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1488 places, 1508 transitions, 4066 flow [2023-08-26 14:51:43,164 INFO L124 PetriNetUnfolderBase]: 47/1279 cut-off events. [2023-08-26 14:51:43,164 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:51:43,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 1279 events. 47/1279 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6060 event pairs, 0 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 1554. Up to 44 conditions per place. [2023-08-26 14:51:43,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 1488 places, 1508 transitions, 4066 flow [2023-08-26 14:51:43,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1005 places, 985 transitions, 2498 flow [2023-08-26 14:51:43,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:51:43,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1005 places, 985 transitions, 2498 flow [2023-08-26 14:51:43,238 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1005 places, 985 transitions, 2498 flow [2023-08-26 14:51:43,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 985 transitions, 2498 flow [2023-08-26 14:51:43,745 INFO L124 PetriNetUnfolderBase]: 47/1277 cut-off events. [2023-08-26 14:51:43,745 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:51:43,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1575 conditions, 1277 events. 47/1277 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6077 event pairs, 0 based on Foata normal form. 0/819 useless extension candidates. Maximal degree in co-relation 1531. Up to 44 conditions per place. [2023-08-26 14:51:43,919 INFO L119 LiptonReduction]: Number of co-enabled transitions 868780 [2023-08-26 14:52:05,465 INFO L134 LiptonReduction]: Checked pairs total: 4180136 [2023-08-26 14:52:05,465 INFO L136 LiptonReduction]: Total number of compositions: 865 [2023-08-26 14:52:05,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:52:05,467 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:52:05,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:52:05,629 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:52:05,629 INFO L124 PetriNetUnfolderBase]: 21/750 cut-off events. [2023-08-26 14:52:05,629 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-26 14:52:05,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:52:05,629 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:52:05,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:52:05,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:52:05,630 INFO L85 PathProgramCache]: Analyzing trace with hash 779575056, now seen corresponding path program 1 times [2023-08-26 14:52:05,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:52:05,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344369902] [2023-08-26 14:52:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:52:05,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:52:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:05,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:52:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:05,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:52:05,714 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:52:05,714 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:52:05,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:52:05,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 14:52:05,715 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:52:05,715 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:52:05,715 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:52:05,715 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-26 14:52:05,972 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:52:05,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1557 places, 1578 transitions, 4300 flow [2023-08-26 14:52:06,603 INFO L124 PetriNetUnfolderBase]: 49/1337 cut-off events. [2023-08-26 14:52:06,604 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-26 14:52:06,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1337 events. 49/1337 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6360 event pairs, 0 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1636. Up to 46 conditions per place. [2023-08-26 14:52:06,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 1557 places, 1578 transitions, 4300 flow [2023-08-26 14:52:06,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1050 places, 1029 transitions, 2633 flow [2023-08-26 14:52:06,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:52:06,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1050 places, 1029 transitions, 2633 flow [2023-08-26 14:52:06,687 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1050 places, 1029 transitions, 2633 flow [2023-08-26 14:52:06,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1050 places, 1029 transitions, 2633 flow [2023-08-26 14:52:07,209 INFO L124 PetriNetUnfolderBase]: 49/1335 cut-off events. [2023-08-26 14:52:07,209 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-26 14:52:07,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1335 events. 49/1335 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6359 event pairs, 0 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1613. Up to 46 conditions per place. [2023-08-26 14:52:07,482 INFO L119 LiptonReduction]: Number of co-enabled transitions 951734 [2023-08-26 14:52:28,588 INFO L134 LiptonReduction]: Checked pairs total: 4595489 [2023-08-26 14:52:28,588 INFO L136 LiptonReduction]: Total number of compositions: 861 [2023-08-26 14:52:28,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:52:28,589 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:52:28,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:52:28,758 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:52:28,759 INFO L124 PetriNetUnfolderBase]: 22/784 cut-off events. [2023-08-26 14:52:28,759 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-26 14:52:28,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:52:28,759 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:52:28,759 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:52:28,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:52:28,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2109083094, now seen corresponding path program 1 times [2023-08-26 14:52:28,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:52:28,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769963865] [2023-08-26 14:52:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:52:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:52:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:28,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:52:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:28,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:52:28,862 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:52:28,862 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:52:28,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:52:28,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 14:52:28,862 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:52:28,863 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:52:28,863 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:52:28,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-26 14:52:29,174 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:52:29,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1626 places, 1648 transitions, 4538 flow [2023-08-26 14:52:29,714 INFO L124 PetriNetUnfolderBase]: 51/1395 cut-off events. [2023-08-26 14:52:29,714 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-26 14:52:29,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 1395 events. 51/1395 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6643 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 1719. Up to 48 conditions per place. [2023-08-26 14:52:29,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 1626 places, 1648 transitions, 4538 flow [2023-08-26 14:52:29,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1095 places, 1073 transitions, 2770 flow [2023-08-26 14:52:29,809 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:52:29,809 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1095 places, 1073 transitions, 2770 flow [2023-08-26 14:52:29,810 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1095 places, 1073 transitions, 2770 flow [2023-08-26 14:52:29,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1095 places, 1073 transitions, 2770 flow [2023-08-26 14:52:30,327 INFO L124 PetriNetUnfolderBase]: 51/1393 cut-off events. [2023-08-26 14:52:30,327 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-26 14:52:30,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1393 events. 51/1393 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6644 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 1696. Up to 48 conditions per place. [2023-08-26 14:52:30,779 INFO L119 LiptonReduction]: Number of co-enabled transitions 1038472 [2023-08-26 14:52:53,283 INFO L134 LiptonReduction]: Checked pairs total: 5763683 [2023-08-26 14:52:53,284 INFO L136 LiptonReduction]: Total number of compositions: 893 [2023-08-26 14:52:53,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:52:53,285 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:52:53,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:52:53,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:52:53,478 INFO L124 PetriNetUnfolderBase]: 23/822 cut-off events. [2023-08-26 14:52:53,478 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-26 14:52:53,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:52:53,478 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:52:53,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:52:53,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:52:53,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1114992839, now seen corresponding path program 1 times [2023-08-26 14:52:53,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:52:53,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713217536] [2023-08-26 14:52:53,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:52:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:52:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:53,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:52:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:52:53,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:52:53,573 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:52:53,573 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:52:53,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:52:53,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 14:52:53,574 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:52:53,574 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:52:53,574 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:52:53,574 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-26 14:52:53,849 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:52:53,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1695 places, 1718 transitions, 4780 flow [2023-08-26 14:52:54,508 INFO L124 PetriNetUnfolderBase]: 53/1453 cut-off events. [2023-08-26 14:52:54,508 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-26 14:52:54,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1852 conditions, 1453 events. 53/1453 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6941 event pairs, 0 based on Foata normal form. 0/930 useless extension candidates. Maximal degree in co-relation 1803. Up to 50 conditions per place. [2023-08-26 14:52:54,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 1695 places, 1718 transitions, 4780 flow [2023-08-26 14:52:54,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1140 places, 1117 transitions, 2909 flow [2023-08-26 14:52:54,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:52:54,584 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1140 places, 1117 transitions, 2909 flow [2023-08-26 14:52:54,584 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1140 places, 1117 transitions, 2909 flow [2023-08-26 14:52:54,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1140 places, 1117 transitions, 2909 flow [2023-08-26 14:52:55,119 INFO L124 PetriNetUnfolderBase]: 53/1451 cut-off events. [2023-08-26 14:52:55,119 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-26 14:52:55,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1451 events. 53/1451 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6950 event pairs, 0 based on Foata normal form. 0/930 useless extension candidates. Maximal degree in co-relation 1780. Up to 50 conditions per place. [2023-08-26 14:52:55,437 INFO L119 LiptonReduction]: Number of co-enabled transitions 1128994 [2023-08-26 14:53:19,700 INFO L134 LiptonReduction]: Checked pairs total: 5458426 [2023-08-26 14:53:19,701 INFO L136 LiptonReduction]: Total number of compositions: 965 [2023-08-26 14:53:19,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:53:19,702 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:53:19,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:53:19,913 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:53:19,913 INFO L124 PetriNetUnfolderBase]: 24/858 cut-off events. [2023-08-26 14:53:19,913 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-26 14:53:19,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:53:19,914 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:53:19,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:53:19,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:53:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1062452186, now seen corresponding path program 1 times [2023-08-26 14:53:19,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:53:19,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618883878] [2023-08-26 14:53:19,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:53:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:53:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:53:19,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:53:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:53:20,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:53:20,016 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:53:20,016 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:53:20,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:53:20,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 14:53:20,016 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:53:20,016 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:53:20,016 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:53:20,016 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-26 14:53:20,310 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:53:20,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1764 places, 1788 transitions, 5026 flow [2023-08-26 14:53:21,079 INFO L124 PetriNetUnfolderBase]: 55/1511 cut-off events. [2023-08-26 14:53:21,079 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-26 14:53:21,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1939 conditions, 1511 events. 55/1511 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7211 event pairs, 0 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 1888. Up to 52 conditions per place. [2023-08-26 14:53:21,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 1764 places, 1788 transitions, 5026 flow [2023-08-26 14:53:21,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1185 places, 1161 transitions, 3050 flow [2023-08-26 14:53:21,166 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:53:21,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1185 places, 1161 transitions, 3050 flow [2023-08-26 14:53:21,167 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1185 places, 1161 transitions, 3050 flow [2023-08-26 14:53:21,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1185 places, 1161 transitions, 3050 flow [2023-08-26 14:53:21,772 INFO L124 PetriNetUnfolderBase]: 55/1509 cut-off events. [2023-08-26 14:53:21,772 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-26 14:53:21,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 1509 events. 55/1509 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7194 event pairs, 0 based on Foata normal form. 0/967 useless extension candidates. Maximal degree in co-relation 1865. Up to 52 conditions per place. [2023-08-26 14:53:22,143 INFO L119 LiptonReduction]: Number of co-enabled transitions 1223300 [2023-08-26 14:53:47,390 INFO L134 LiptonReduction]: Checked pairs total: 5944591 [2023-08-26 14:53:47,390 INFO L136 LiptonReduction]: Total number of compositions: 1003 [2023-08-26 14:53:47,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:53:47,392 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:53:47,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:53:47,626 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:53:47,626 INFO L124 PetriNetUnfolderBase]: 25/894 cut-off events. [2023-08-26 14:53:47,626 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-26 14:53:47,626 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:53:47,626 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:53:47,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:53:47,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:53:47,626 INFO L85 PathProgramCache]: Analyzing trace with hash -255482855, now seen corresponding path program 1 times [2023-08-26 14:53:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:53:47,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590213320] [2023-08-26 14:53:47,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:53:47,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:53:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:53:47,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:53:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:53:47,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:53:47,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:53:47,745 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:53:47,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:53:47,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 14:53:47,745 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:53:47,745 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:53:47,745 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:53:47,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-26 14:53:48,029 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:53:48,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1833 places, 1858 transitions, 5276 flow [2023-08-26 14:53:48,744 INFO L124 PetriNetUnfolderBase]: 57/1569 cut-off events. [2023-08-26 14:53:48,744 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-26 14:53:48,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1569 events. 57/1569 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7494 event pairs, 0 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 1974. Up to 54 conditions per place. [2023-08-26 14:53:48,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 1833 places, 1858 transitions, 5276 flow [2023-08-26 14:53:48,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1230 places, 1205 transitions, 3193 flow [2023-08-26 14:53:48,840 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:53:48,840 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1230 places, 1205 transitions, 3193 flow [2023-08-26 14:53:48,841 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1230 places, 1205 transitions, 3193 flow [2023-08-26 14:53:48,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1230 places, 1205 transitions, 3193 flow [2023-08-26 14:53:49,456 INFO L124 PetriNetUnfolderBase]: 57/1567 cut-off events. [2023-08-26 14:53:49,456 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-26 14:53:49,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2000 conditions, 1567 events. 57/1567 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7446 event pairs, 0 based on Foata normal form. 0/1004 useless extension candidates. Maximal degree in co-relation 1951. Up to 54 conditions per place. [2023-08-26 14:53:49,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 1321390 [2023-08-26 14:54:16,591 INFO L134 LiptonReduction]: Checked pairs total: 7365268 [2023-08-26 14:54:16,591 INFO L136 LiptonReduction]: Total number of compositions: 1057 [2023-08-26 14:54:16,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:54:16,593 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:54:16,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:54:16,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:54:16,896 INFO L124 PetriNetUnfolderBase]: 26/930 cut-off events. [2023-08-26 14:54:16,896 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-26 14:54:16,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:54:16,896 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:54:16,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:54:16,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:54:16,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1392949582, now seen corresponding path program 1 times [2023-08-26 14:54:16,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:54:16,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452125330] [2023-08-26 14:54:16,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:54:16,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:54:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:54:16,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:54:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:54:17,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:54:17,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:54:17,006 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:54:17,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:54:17,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-26 14:54:17,006 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:54:17,007 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:54:17,007 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:54:17,007 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-26 14:54:17,287 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:54:17,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1902 places, 1928 transitions, 5530 flow [2023-08-26 14:54:17,962 INFO L124 PetriNetUnfolderBase]: 59/1627 cut-off events. [2023-08-26 14:54:17,962 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-26 14:54:18,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 1627 events. 59/1627 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7847 event pairs, 0 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 2061. Up to 56 conditions per place. [2023-08-26 14:54:18,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 1902 places, 1928 transitions, 5530 flow [2023-08-26 14:54:18,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1275 places, 1249 transitions, 3338 flow [2023-08-26 14:54:18,089 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:54:18,089 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1275 places, 1249 transitions, 3338 flow [2023-08-26 14:54:18,089 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1275 places, 1249 transitions, 3338 flow [2023-08-26 14:54:18,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1275 places, 1249 transitions, 3338 flow [2023-08-26 14:54:18,778 INFO L124 PetriNetUnfolderBase]: 59/1625 cut-off events. [2023-08-26 14:54:18,778 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-26 14:54:18,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 1625 events. 59/1625 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 7818 event pairs, 0 based on Foata normal form. 0/1041 useless extension candidates. Maximal degree in co-relation 2038. Up to 56 conditions per place. [2023-08-26 14:54:19,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 1423264 [2023-08-26 14:54:45,999 INFO L134 LiptonReduction]: Checked pairs total: 6930055 [2023-08-26 14:54:45,999 INFO L136 LiptonReduction]: Total number of compositions: 1074 [2023-08-26 14:54:46,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:54:46,001 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:54:46,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:54:46,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:54:46,326 INFO L124 PetriNetUnfolderBase]: 26/965 cut-off events. [2023-08-26 14:54:46,326 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-26 14:54:46,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:54:46,327 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:54:46,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:54:46,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:54:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash 196171893, now seen corresponding path program 1 times [2023-08-26 14:54:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:54:46,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878732757] [2023-08-26 14:54:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:54:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:54:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:54:46,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:54:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:54:46,439 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:54:46,440 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:54:46,440 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:54:46,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:54:46,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 14:54:46,440 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:54:46,440 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:54:46,440 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:54:46,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-08-26 14:54:46,721 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:54:46,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1971 places, 1998 transitions, 5788 flow [2023-08-26 14:54:47,607 INFO L124 PetriNetUnfolderBase]: 61/1685 cut-off events. [2023-08-26 14:54:47,607 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-26 14:54:47,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 1685 events. 61/1685 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8124 event pairs, 0 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 2149. Up to 58 conditions per place. [2023-08-26 14:54:47,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 1971 places, 1998 transitions, 5788 flow [2023-08-26 14:54:47,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1320 places, 1293 transitions, 3485 flow [2023-08-26 14:54:47,700 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:54:47,700 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1320 places, 1293 transitions, 3485 flow [2023-08-26 14:54:47,700 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1320 places, 1293 transitions, 3485 flow [2023-08-26 14:54:47,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1320 places, 1293 transitions, 3485 flow [2023-08-26 14:54:48,581 INFO L124 PetriNetUnfolderBase]: 61/1683 cut-off events. [2023-08-26 14:54:48,581 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-26 14:54:48,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2177 conditions, 1683 events. 61/1683 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8064 event pairs, 0 based on Foata normal form. 0/1078 useless extension candidates. Maximal degree in co-relation 2126. Up to 58 conditions per place. [2023-08-26 14:54:48,979 INFO L119 LiptonReduction]: Number of co-enabled transitions 1528922 [2023-08-26 14:55:16,512 INFO L134 LiptonReduction]: Checked pairs total: 7468009 [2023-08-26 14:55:16,512 INFO L136 LiptonReduction]: Total number of compositions: 1088 [2023-08-26 14:55:16,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:55:16,513 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:55:16,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:55:16,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:55:16,809 INFO L124 PetriNetUnfolderBase]: 27/1001 cut-off events. [2023-08-26 14:55:16,809 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2023-08-26 14:55:16,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:55:16,810 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:55:16,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:55:16,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:55:16,810 INFO L85 PathProgramCache]: Analyzing trace with hash -475948999, now seen corresponding path program 1 times [2023-08-26 14:55:16,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:55:16,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379079359] [2023-08-26 14:55:16,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:55:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:55:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:55:16,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:55:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:55:16,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:55:16,926 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:55:16,926 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:55:16,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:55:16,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-26 14:55:16,926 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:55:16,927 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:55:16,927 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:55:16,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-08-26 14:55:17,366 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:55:17,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2040 places, 2068 transitions, 6050 flow [2023-08-26 14:55:18,162 INFO L124 PetriNetUnfolderBase]: 63/1743 cut-off events. [2023-08-26 14:55:18,162 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-26 14:55:18,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2297 conditions, 1743 events. 63/1743 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8410 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 2238. Up to 60 conditions per place. [2023-08-26 14:55:18,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 2040 places, 2068 transitions, 6050 flow [2023-08-26 14:55:18,307 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1365 places, 1337 transitions, 3634 flow [2023-08-26 14:55:18,307 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:55:18,307 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1365 places, 1337 transitions, 3634 flow [2023-08-26 14:55:18,307 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1365 places, 1337 transitions, 3634 flow [2023-08-26 14:55:18,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1365 places, 1337 transitions, 3634 flow [2023-08-26 14:55:19,146 INFO L124 PetriNetUnfolderBase]: 63/1741 cut-off events. [2023-08-26 14:55:19,146 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-26 14:55:19,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2267 conditions, 1741 events. 63/1741 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8430 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 2215. Up to 60 conditions per place. [2023-08-26 14:55:19,497 INFO L119 LiptonReduction]: Number of co-enabled transitions 1638364 [2023-08-26 14:55:49,246 INFO L134 LiptonReduction]: Checked pairs total: 8004824 [2023-08-26 14:55:49,246 INFO L136 LiptonReduction]: Total number of compositions: 1188 [2023-08-26 14:55:49,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:55:49,248 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:55:49,248 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:55:49,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:55:49,554 INFO L124 PetriNetUnfolderBase]: 29/1038 cut-off events. [2023-08-26 14:55:49,554 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2023-08-26 14:55:49,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:55:49,554 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:55:49,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:55:49,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:55:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash 555458418, now seen corresponding path program 1 times [2023-08-26 14:55:49,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:55:49,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430460455] [2023-08-26 14:55:49,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:55:49,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:55:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:55:49,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:55:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:55:49,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:55:49,678 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:55:49,678 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:55:49,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:55:49,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-26 14:55:49,679 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:55:49,679 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:55:49,679 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:55:49,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-08-26 14:55:50,203 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:55:50,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2109 places, 2138 transitions, 6316 flow [2023-08-26 14:55:51,129 INFO L124 PetriNetUnfolderBase]: 65/1801 cut-off events. [2023-08-26 14:55:51,129 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-26 14:55:51,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2389 conditions, 1801 events. 65/1801 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8692 event pairs, 0 based on Foata normal form. 0/1152 useless extension candidates. Maximal degree in co-relation 2328. Up to 62 conditions per place. [2023-08-26 14:55:51,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 2109 places, 2138 transitions, 6316 flow [2023-08-26 14:55:51,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1410 places, 1381 transitions, 3785 flow [2023-08-26 14:55:51,299 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:55:51,299 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1410 places, 1381 transitions, 3785 flow [2023-08-26 14:55:51,299 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1410 places, 1381 transitions, 3785 flow [2023-08-26 14:55:51,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1410 places, 1381 transitions, 3785 flow [2023-08-26 14:55:52,212 INFO L124 PetriNetUnfolderBase]: 65/1799 cut-off events. [2023-08-26 14:55:52,212 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-26 14:55:52,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2358 conditions, 1799 events. 65/1799 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8685 event pairs, 0 based on Foata normal form. 0/1152 useless extension candidates. Maximal degree in co-relation 2305. Up to 62 conditions per place. [2023-08-26 14:55:52,645 INFO L119 LiptonReduction]: Number of co-enabled transitions 1751590 [2023-08-26 14:56:23,053 INFO L134 LiptonReduction]: Checked pairs total: 8557317 [2023-08-26 14:56:23,053 INFO L136 LiptonReduction]: Total number of compositions: 1207 [2023-08-26 14:56:23,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:56:23,055 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:56:23,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:56:23,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:56:23,442 INFO L124 PetriNetUnfolderBase]: 30/1074 cut-off events. [2023-08-26 14:56:23,442 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2023-08-26 14:56:23,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:56:23,442 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:56:23,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:56:23,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:56:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 594510412, now seen corresponding path program 1 times [2023-08-26 14:56:23,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:56:23,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409759705] [2023-08-26 14:56:23,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:56:23,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:56:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:56:23,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:56:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:56:23,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:56:23,570 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:56:23,570 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:56:23,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:56:23,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-26 14:56:23,571 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:56:23,571 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:56:23,571 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:56:23,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-08-26 14:56:23,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:56:23,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2178 places, 2208 transitions, 6586 flow [2023-08-26 14:56:25,163 INFO L124 PetriNetUnfolderBase]: 67/1859 cut-off events. [2023-08-26 14:56:25,163 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-26 14:56:25,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2482 conditions, 1859 events. 67/1859 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 8959 event pairs, 0 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 2419. Up to 64 conditions per place. [2023-08-26 14:56:25,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 2178 places, 2208 transitions, 6586 flow [2023-08-26 14:56:25,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1455 places, 1425 transitions, 3938 flow [2023-08-26 14:56:25,285 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:56:25,285 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1455 places, 1425 transitions, 3938 flow [2023-08-26 14:56:25,285 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1455 places, 1425 transitions, 3938 flow [2023-08-26 14:56:25,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1455 places, 1425 transitions, 3938 flow [2023-08-26 14:56:26,283 INFO L124 PetriNetUnfolderBase]: 67/1857 cut-off events. [2023-08-26 14:56:26,283 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-26 14:56:26,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 1857 events. 67/1857 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9004 event pairs, 0 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 2396. Up to 64 conditions per place. [2023-08-26 14:56:26,864 INFO L119 LiptonReduction]: Number of co-enabled transitions 1868600 [2023-08-26 14:56:59,321 INFO L134 LiptonReduction]: Checked pairs total: 9098568 [2023-08-26 14:56:59,322 INFO L136 LiptonReduction]: Total number of compositions: 1234 [2023-08-26 14:56:59,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:56:59,323 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:56:59,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:56:59,735 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:56:59,735 INFO L124 PetriNetUnfolderBase]: 31/1109 cut-off events. [2023-08-26 14:56:59,735 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2023-08-26 14:56:59,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:56:59,735 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:56:59,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:56:59,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:56:59,736 INFO L85 PathProgramCache]: Analyzing trace with hash 851325595, now seen corresponding path program 1 times [2023-08-26 14:56:59,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:56:59,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230654142] [2023-08-26 14:56:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:56:59,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:56:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:56:59,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:56:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:56:59,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:56:59,876 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:56:59,876 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:56:59,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:56:59,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-26 14:56:59,876 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:56:59,877 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:56:59,877 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:56:59,877 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-08-26 14:57:00,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:57:00,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2247 places, 2278 transitions, 6860 flow [2023-08-26 14:57:01,510 INFO L124 PetriNetUnfolderBase]: 69/1917 cut-off events. [2023-08-26 14:57:01,511 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-26 14:57:01,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2576 conditions, 1917 events. 69/1917 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9315 event pairs, 0 based on Foata normal form. 0/1226 useless extension candidates. Maximal degree in co-relation 2511. Up to 66 conditions per place. [2023-08-26 14:57:01,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 2247 places, 2278 transitions, 6860 flow [2023-08-26 14:57:01,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1500 places, 1469 transitions, 4093 flow [2023-08-26 14:57:01,648 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:57:01,648 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1500 places, 1469 transitions, 4093 flow [2023-08-26 14:57:01,648 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1500 places, 1469 transitions, 4093 flow [2023-08-26 14:57:01,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1500 places, 1469 transitions, 4093 flow [2023-08-26 14:57:02,734 INFO L124 PetriNetUnfolderBase]: 69/1915 cut-off events. [2023-08-26 14:57:02,734 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-26 14:57:02,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2543 conditions, 1915 events. 69/1915 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9258 event pairs, 0 based on Foata normal form. 0/1226 useless extension candidates. Maximal degree in co-relation 2488. Up to 66 conditions per place. [2023-08-26 14:57:03,294 INFO L119 LiptonReduction]: Number of co-enabled transitions 1989394 [2023-08-26 14:57:35,351 INFO L134 LiptonReduction]: Checked pairs total: 9715891 [2023-08-26 14:57:35,351 INFO L136 LiptonReduction]: Total number of compositions: 1258 [2023-08-26 14:57:35,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:57:35,353 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:57:35,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:57:35,813 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:57:35,813 INFO L124 PetriNetUnfolderBase]: 32/1146 cut-off events. [2023-08-26 14:57:35,813 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2023-08-26 14:57:35,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:57:35,813 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:57:35,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:57:35,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:57:35,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1081481917, now seen corresponding path program 1 times [2023-08-26 14:57:35,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:57:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687138134] [2023-08-26 14:57:35,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:57:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:57:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:57:35,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:57:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:57:35,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:57:35,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:57:35,961 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:57:35,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:57:35,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-26 14:57:35,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:57:35,962 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:57:35,962 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:57:35,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-08-26 14:57:36,286 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:57:36,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2316 places, 2348 transitions, 7138 flow [2023-08-26 14:57:37,668 INFO L124 PetriNetUnfolderBase]: 71/1975 cut-off events. [2023-08-26 14:57:37,668 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-26 14:57:37,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1975 events. 71/1975 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9588 event pairs, 0 based on Foata normal form. 0/1263 useless extension candidates. Maximal degree in co-relation 2604. Up to 68 conditions per place. [2023-08-26 14:57:37,800 INFO L82 GeneralOperation]: Start removeDead. Operand has 2316 places, 2348 transitions, 7138 flow [2023-08-26 14:57:37,815 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1545 places, 1513 transitions, 4250 flow [2023-08-26 14:57:37,815 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:57:37,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1545 places, 1513 transitions, 4250 flow [2023-08-26 14:57:37,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1545 places, 1513 transitions, 4250 flow [2023-08-26 14:57:37,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1545 places, 1513 transitions, 4250 flow [2023-08-26 14:57:39,237 INFO L124 PetriNetUnfolderBase]: 71/1973 cut-off events. [2023-08-26 14:57:39,237 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-26 14:57:39,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2637 conditions, 1973 events. 71/1973 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 9572 event pairs, 0 based on Foata normal form. 0/1263 useless extension candidates. Maximal degree in co-relation 2581. Up to 68 conditions per place. [2023-08-26 14:57:40,183 INFO L119 LiptonReduction]: Number of co-enabled transitions 2113972 [2023-08-26 14:58:13,503 INFO L134 LiptonReduction]: Checked pairs total: 10341980 [2023-08-26 14:58:13,503 INFO L136 LiptonReduction]: Total number of compositions: 1306 [2023-08-26 14:58:13,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:58:13,504 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:58:13,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:58:13,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:58:13,942 INFO L124 PetriNetUnfolderBase]: 33/1182 cut-off events. [2023-08-26 14:58:13,942 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2023-08-26 14:58:13,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:58:13,942 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:58:13,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:58:13,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:58:13,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1987585986, now seen corresponding path program 1 times [2023-08-26 14:58:13,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:58:13,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557447383] [2023-08-26 14:58:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:58:13,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:58:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:58:14,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:58:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:58:14,102 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:58:14,102 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:58:14,102 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:58:14,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:58:14,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-26 14:58:14,102 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:58:14,103 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:58:14,103 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:58:14,103 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-08-26 14:58:14,438 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:58:14,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2385 places, 2418 transitions, 7420 flow [2023-08-26 14:58:15,756 INFO L124 PetriNetUnfolderBase]: 73/2033 cut-off events. [2023-08-26 14:58:15,757 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-26 14:58:15,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 2033 events. 73/2033 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9889 event pairs, 0 based on Foata normal form. 0/1300 useless extension candidates. Maximal degree in co-relation 2698. Up to 70 conditions per place. [2023-08-26 14:58:15,886 INFO L82 GeneralOperation]: Start removeDead. Operand has 2385 places, 2418 transitions, 7420 flow [2023-08-26 14:58:15,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1590 places, 1557 transitions, 4409 flow [2023-08-26 14:58:15,897 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:58:15,897 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1590 places, 1557 transitions, 4409 flow [2023-08-26 14:58:15,897 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1590 places, 1557 transitions, 4409 flow [2023-08-26 14:58:15,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1590 places, 1557 transitions, 4409 flow [2023-08-26 14:58:17,083 INFO L124 PetriNetUnfolderBase]: 73/2031 cut-off events. [2023-08-26 14:58:17,083 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-26 14:58:17,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 2031 events. 73/2031 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9868 event pairs, 0 based on Foata normal form. 0/1300 useless extension candidates. Maximal degree in co-relation 2675. Up to 70 conditions per place. [2023-08-26 14:58:17,775 INFO L119 LiptonReduction]: Number of co-enabled transitions 2242334 [2023-08-26 14:58:52,384 INFO L134 LiptonReduction]: Checked pairs total: 10940942 [2023-08-26 14:58:52,384 INFO L136 LiptonReduction]: Total number of compositions: 1341 [2023-08-26 14:58:52,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 14:58:52,385 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;@5ab810a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 14:58:52,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 14:58:52,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 14:58:52,850 INFO L124 PetriNetUnfolderBase]: 34/1218 cut-off events. [2023-08-26 14:58:52,850 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2023-08-26 14:58:52,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 14:58:52,850 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 14:58:52,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 14:58:52,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 14:58:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1477052975, now seen corresponding path program 1 times [2023-08-26 14:58:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 14:58:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238902003] [2023-08-26 14:58:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 14:58:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 14:58:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:58:52,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 14:58:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 14:58:53,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 14:58:53,018 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 14:58:53,018 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-08-26 14:58:53,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 14:58:53,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-26 14:58:53,019 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 14:58:53,019 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-08-26 14:58:53,019 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 14:58:53,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-08-26 14:58:53,380 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 14:58:53,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2454 places, 2488 transitions, 7706 flow [2023-08-26 14:58:55,015 INFO L124 PetriNetUnfolderBase]: 75/2091 cut-off events. [2023-08-26 14:58:55,015 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-26 14:58:55,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 2091 events. 75/2091 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 10142 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 2793. Up to 72 conditions per place. [2023-08-26 14:58:55,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 2454 places, 2488 transitions, 7706 flow [2023-08-26 14:58:55,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1635 places, 1601 transitions, 4570 flow [2023-08-26 14:58:55,170 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 14:58:55,170 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1635 places, 1601 transitions, 4570 flow [2023-08-26 14:58:55,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1635 places, 1601 transitions, 4570 flow [2023-08-26 14:58:55,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1635 places, 1601 transitions, 4570 flow [2023-08-26 14:58:57,147 INFO L124 PetriNetUnfolderBase]: 75/2089 cut-off events. [2023-08-26 14:58:57,147 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2023-08-26 14:58:57,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2828 conditions, 2089 events. 75/2089 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 10173 event pairs, 0 based on Foata normal form. 0/1337 useless extension candidates. Maximal degree in co-relation 2770. Up to 72 conditions per place. [2023-08-26 14:58:57,934 INFO L119 LiptonReduction]: Number of co-enabled transitions 2374480 Received shutdown request... [2023-08-26 14:59:05,550 WARN L266 SmtUtils]: Removed 2 from assertion stack [2023-08-26 14:59:05,551 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 14:59:05,552 INFO L158 Benchmark]: Toolchain (without parser) took 678985.46ms. Allocated memory was 377.5MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 352.5MB in the beginning and 4.1GB in the end (delta: -3.7GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. [2023-08-26 14:59:05,552 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 377.5MB. Free memory is still 354.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 14:59:05,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.44ms. Allocated memory is still 377.5MB. Free memory was 352.5MB in the beginning and 332.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 14:59:05,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.03ms. Allocated memory is still 377.5MB. Free memory was 332.9MB in the beginning and 330.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:59:05,552 INFO L158 Benchmark]: Boogie Preprocessor took 25.09ms. Allocated memory is still 377.5MB. Free memory was 330.8MB in the beginning and 329.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 14:59:05,552 INFO L158 Benchmark]: RCFGBuilder took 596.84ms. Allocated memory is still 377.5MB. Free memory was 329.1MB in the beginning and 343.9MB in the end (delta: -14.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 14:59:05,553 INFO L158 Benchmark]: TraceAbstraction took 677878.94ms. Allocated memory was 377.5MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 343.9MB in the beginning and 4.1GB in the end (delta: -3.7GB). Peak memory consumption was 2.6GB. Max. memory is 16.0GB. [2023-08-26 14:59:05,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 377.5MB. Free memory is still 354.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 416.44ms. Allocated memory is still 377.5MB. Free memory was 352.5MB in the beginning and 332.9MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 62.03ms. Allocated memory is still 377.5MB. Free memory was 332.9MB in the beginning and 330.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.09ms. Allocated memory is still 377.5MB. Free memory was 330.8MB in the beginning and 329.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 596.84ms. Allocated memory is still 377.5MB. Free memory was 329.1MB in the beginning and 343.9MB in the end (delta: -14.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * TraceAbstraction took 677878.94ms. Allocated memory was 377.5MB in the beginning and 5.3GB in the end (delta: 5.0GB). Free memory was 343.9MB in the beginning and 4.1GB in the end (delta: -3.7GB). Peak memory consumption was 2.6GB. 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: 2.9s, 105 PlacesBefore, 54 PlacesAfterwards, 105 TransitionsBefore, 51 TransitionsAfterwards, 4340 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 3 ChoiceCompositions, 90 TotalNumberOfCompositions, 9627 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4816, independent: 4581, independent conditional: 0, independent unconditional: 4581, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2156, independent: 2103, independent conditional: 0, independent unconditional: 2103, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4816, independent: 2478, independent conditional: 0, independent unconditional: 2478, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 2156, unknown conditional: 0, unknown unconditional: 2156] , Statistics on independence cache: Total cache size (in pairs): 190, Positive cache size: 166, Positive conditional cache size: 0, Positive unconditional cache size: 166, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 150 PlacesBefore, 89 PlacesAfterwards, 149 TransitionsBefore, 85 TransitionsAfterwards, 11614 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 122 TotalNumberOfCompositions, 40135 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15009, independent: 14494, independent conditional: 0, independent unconditional: 14494, dependent: 515, dependent conditional: 0, dependent unconditional: 515, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5632, independent: 5542, independent conditional: 0, independent unconditional: 5542, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15009, independent: 8952, independent conditional: 0, independent unconditional: 8952, dependent: 425, dependent conditional: 0, dependent unconditional: 425, unknown: 5632, unknown conditional: 0, unknown unconditional: 5632] , Statistics on independence cache: Total cache size (in pairs): 804, Positive cache size: 753, Positive conditional cache size: 0, Positive unconditional cache size: 753, Negative cache size: 51, Negative conditional cache size: 0, Negative unconditional cache size: 51, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 195 PlacesBefore, 120 PlacesAfterwards, 193 TransitionsBefore, 114 TransitionsAfterwards, 22672 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 4 ChoiceCompositions, 162 TotalNumberOfCompositions, 89048 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26353, independent: 25569, independent conditional: 0, independent unconditional: 25569, dependent: 784, dependent conditional: 0, dependent unconditional: 784, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10695, independent: 10562, independent conditional: 0, independent unconditional: 10562, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 26353, independent: 15007, independent conditional: 0, independent unconditional: 15007, dependent: 651, dependent conditional: 0, dependent unconditional: 651, unknown: 10695, unknown conditional: 0, unknown unconditional: 10695] , Statistics on independence cache: Total cache size (in pairs): 1367, Positive cache size: 1279, Positive conditional cache size: 0, Positive unconditional cache size: 1279, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 240 PlacesBefore, 151 PlacesAfterwards, 237 TransitionsBefore, 145 TransitionsAfterwards, 37514 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 158 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 3 ChoiceCompositions, 197 TotalNumberOfCompositions, 176182 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45739, independent: 44544, independent conditional: 0, independent unconditional: 44544, dependent: 1195, dependent conditional: 0, dependent unconditional: 1195, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 17582, independent: 17391, independent conditional: 0, independent unconditional: 17391, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45739, independent: 27153, independent conditional: 0, independent unconditional: 27153, dependent: 1004, dependent conditional: 0, dependent unconditional: 1004, unknown: 17582, unknown conditional: 0, unknown unconditional: 17582] , Statistics on independence cache: Total cache size (in pairs): 2324, Positive cache size: 2228, Positive conditional cache size: 0, Positive unconditional cache size: 2228, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 285 PlacesBefore, 182 PlacesAfterwards, 281 TransitionsBefore, 175 TransitionsAfterwards, 56140 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 204 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 3 ChoiceCompositions, 247 TotalNumberOfCompositions, 239729 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 56939, independent: 55713, independent conditional: 0, independent unconditional: 55713, dependent: 1226, dependent conditional: 0, dependent unconditional: 1226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 25714, independent: 25508, independent conditional: 0, independent unconditional: 25508, dependent: 206, dependent conditional: 0, dependent unconditional: 206, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 56939, independent: 30205, independent conditional: 0, independent unconditional: 30205, dependent: 1020, dependent conditional: 0, dependent unconditional: 1020, unknown: 25714, unknown conditional: 0, unknown unconditional: 25714] , Statistics on independence cache: Total cache size (in pairs): 2283, Positive cache size: 2153, Positive conditional cache size: 0, Positive unconditional cache size: 2153, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 330 PlacesBefore, 213 PlacesAfterwards, 325 TransitionsBefore, 204 TransitionsAfterwards, 78550 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 259 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 4 ChoiceCompositions, 308 TotalNumberOfCompositions, 349985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95514, independent: 94035, independent conditional: 0, independent unconditional: 94035, dependent: 1479, dependent conditional: 0, dependent unconditional: 1479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 37833, independent: 37562, independent conditional: 0, independent unconditional: 37562, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 95514, independent: 56473, independent conditional: 0, independent unconditional: 56473, dependent: 1208, dependent conditional: 0, dependent unconditional: 1208, unknown: 37833, unknown conditional: 0, unknown unconditional: 37833] , Statistics on independence cache: Total cache size (in pairs): 4470, Positive cache size: 4288, Positive conditional cache size: 0, Positive unconditional cache size: 4288, Negative cache size: 182, Negative conditional cache size: 0, Negative unconditional cache size: 182, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 375 PlacesBefore, 244 PlacesAfterwards, 369 TransitionsBefore, 235 TransitionsAfterwards, 104744 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 258 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 3 ChoiceCompositions, 308 TotalNumberOfCompositions, 464862 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118307, independent: 116594, independent conditional: 0, independent unconditional: 116594, dependent: 1713, dependent conditional: 0, dependent unconditional: 1713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48631, independent: 48319, independent conditional: 0, independent unconditional: 48319, dependent: 312, dependent conditional: 0, dependent unconditional: 312, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 118307, independent: 68275, independent conditional: 0, independent unconditional: 68275, dependent: 1401, dependent conditional: 0, dependent unconditional: 1401, unknown: 48631, unknown conditional: 0, unknown unconditional: 48631] , Statistics on independence cache: Total cache size (in pairs): 4937, Positive cache size: 4750, Positive conditional cache size: 0, Positive unconditional cache size: 4750, Negative cache size: 187, Negative conditional cache size: 0, Negative unconditional cache size: 187, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3s, 420 PlacesBefore, 275 PlacesAfterwards, 413 TransitionsBefore, 265 TransitionsAfterwards, 134722 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 298 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 3 ChoiceCompositions, 350 TotalNumberOfCompositions, 606089 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 142653, independent: 140705, independent conditional: 0, independent unconditional: 140705, dependent: 1948, dependent conditional: 0, dependent unconditional: 1948, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 61322, independent: 60994, independent conditional: 0, independent unconditional: 60994, dependent: 328, dependent conditional: 0, dependent unconditional: 328, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 142653, independent: 79711, independent conditional: 0, independent unconditional: 79711, dependent: 1620, dependent conditional: 0, dependent unconditional: 1620, unknown: 61322, unknown conditional: 0, unknown unconditional: 61322] , Statistics on independence cache: Total cache size (in pairs): 5211, Positive cache size: 4984, Positive conditional cache size: 0, Positive unconditional cache size: 4984, Negative cache size: 227, Negative conditional cache size: 0, Negative unconditional cache size: 227, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.3s, 465 PlacesBefore, 306 PlacesAfterwards, 457 TransitionsBefore, 295 TransitionsAfterwards, 168484 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 327 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 37 ConcurrentYvCompositions, 3 ChoiceCompositions, 384 TotalNumberOfCompositions, 774945 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 182343, independent: 180116, independent conditional: 0, independent unconditional: 180116, dependent: 2227, dependent conditional: 0, dependent unconditional: 2227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 77462, independent: 77014, independent conditional: 0, independent unconditional: 77014, dependent: 448, dependent conditional: 0, dependent unconditional: 448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 182343, independent: 103102, independent conditional: 0, independent unconditional: 103102, dependent: 1779, dependent conditional: 0, dependent unconditional: 1779, unknown: 77462, unknown conditional: 0, unknown unconditional: 77462] , Statistics on independence cache: Total cache size (in pairs): 7448, Positive cache size: 7202, Positive conditional cache size: 0, Positive unconditional cache size: 7202, Negative cache size: 246, Negative conditional cache size: 0, Negative unconditional cache size: 246, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6s, 510 PlacesBefore, 338 PlacesAfterwards, 501 TransitionsBefore, 326 TransitionsAfterwards, 206030 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 380 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 41 ConcurrentYvCompositions, 3 ChoiceCompositions, 441 TotalNumberOfCompositions, 953235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 241238, independent: 238802, independent conditional: 0, independent unconditional: 238802, dependent: 2436, dependent conditional: 0, dependent unconditional: 2436, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 96847, independent: 96328, independent conditional: 0, independent unconditional: 96328, dependent: 519, dependent conditional: 0, dependent unconditional: 519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 241238, independent: 142474, independent conditional: 0, independent unconditional: 142474, dependent: 1917, dependent conditional: 0, dependent unconditional: 1917, unknown: 96847, unknown conditional: 0, unknown unconditional: 96847] , Statistics on independence cache: Total cache size (in pairs): 10203, Positive cache size: 9956, Positive conditional cache size: 0, Positive unconditional cache size: 9956, Negative cache size: 247, Negative conditional cache size: 0, Negative unconditional cache size: 247, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6s, 555 PlacesBefore, 368 PlacesAfterwards, 545 TransitionsBefore, 355 TransitionsAfterwards, 247360 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 400 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 44 ConcurrentYvCompositions, 3 ChoiceCompositions, 464 TotalNumberOfCompositions, 1313416 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 277053, independent: 273863, independent conditional: 0, independent unconditional: 273863, dependent: 3190, dependent conditional: 0, dependent unconditional: 3190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 114837, independent: 114352, independent conditional: 0, independent unconditional: 114352, dependent: 485, dependent conditional: 0, dependent unconditional: 485, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 277053, independent: 159511, independent conditional: 0, independent unconditional: 159511, dependent: 2705, dependent conditional: 0, dependent unconditional: 2705, unknown: 114837, unknown conditional: 0, unknown unconditional: 114837] , Statistics on independence cache: Total cache size (in pairs): 12886, Positive cache size: 12540, Positive conditional cache size: 0, Positive unconditional cache size: 12540, Negative cache size: 346, Negative conditional cache size: 0, Negative unconditional cache size: 346, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7s, 600 PlacesBefore, 399 PlacesAfterwards, 589 TransitionsBefore, 385 TransitionsAfterwards, 292474 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 416 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 46 ConcurrentYvCompositions, 3 ChoiceCompositions, 482 TotalNumberOfCompositions, 1375892 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 281463, independent: 278506, independent conditional: 0, independent unconditional: 278506, dependent: 2957, dependent conditional: 0, dependent unconditional: 2957, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 134043, independent: 133518, independent conditional: 0, independent unconditional: 133518, dependent: 525, dependent conditional: 0, dependent unconditional: 525, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 281463, independent: 144988, independent conditional: 0, independent unconditional: 144988, dependent: 2432, dependent conditional: 0, dependent unconditional: 2432, unknown: 134043, unknown conditional: 0, unknown unconditional: 134043] , Statistics on independence cache: Total cache size (in pairs): 12113, Positive cache size: 11800, Positive conditional cache size: 0, Positive unconditional cache size: 11800, Negative cache size: 313, Negative conditional cache size: 0, Negative unconditional cache size: 313, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 645 PlacesBefore, 431 PlacesAfterwards, 633 TransitionsBefore, 415 TransitionsAfterwards, 341372 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 460 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 51 ConcurrentYvCompositions, 4 ChoiceCompositions, 532 TotalNumberOfCompositions, 1871670 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 395093, independent: 391222, independent conditional: 0, independent unconditional: 391222, dependent: 3871, dependent conditional: 0, dependent unconditional: 3871, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 158758, independent: 158069, independent conditional: 0, independent unconditional: 158069, dependent: 689, dependent conditional: 0, dependent unconditional: 689, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 395093, independent: 233153, independent conditional: 0, independent unconditional: 233153, dependent: 3182, dependent conditional: 0, dependent unconditional: 3182, unknown: 158758, unknown conditional: 0, unknown unconditional: 158758] , Statistics on independence cache: Total cache size (in pairs): 19100, Positive cache size: 18703, Positive conditional cache size: 0, Positive unconditional cache size: 18703, Negative cache size: 397, Negative conditional cache size: 0, Negative unconditional cache size: 397, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.7s, 690 PlacesBefore, 462 PlacesAfterwards, 677 TransitionsBefore, 446 TransitionsAfterwards, 394054 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 534 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 3 ChoiceCompositions, 611 TotalNumberOfCompositions, 2135493 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 473289, independent: 469245, independent conditional: 0, independent unconditional: 469245, dependent: 4044, dependent conditional: 0, dependent unconditional: 4044, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 184438, independent: 183895, independent conditional: 0, independent unconditional: 183895, dependent: 543, dependent conditional: 0, dependent unconditional: 543, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 473289, independent: 285350, independent conditional: 0, independent unconditional: 285350, dependent: 3501, dependent conditional: 0, dependent unconditional: 3501, unknown: 184438, unknown conditional: 0, unknown unconditional: 184438] , Statistics on independence cache: Total cache size (in pairs): 20899, Positive cache size: 20562, Positive conditional cache size: 0, Positive unconditional cache size: 20562, Negative cache size: 337, Negative conditional cache size: 0, Negative unconditional cache size: 337, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2s, 735 PlacesBefore, 492 PlacesAfterwards, 721 TransitionsBefore, 475 TransitionsAfterwards, 450520 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 543 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 56 ConcurrentYvCompositions, 3 ChoiceCompositions, 619 TotalNumberOfCompositions, 2138410 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 485594, independent: 481939, independent conditional: 0, independent unconditional: 481939, dependent: 3655, dependent conditional: 0, dependent unconditional: 3655, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 206655, independent: 206026, independent conditional: 0, independent unconditional: 206026, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 485594, independent: 275913, independent conditional: 0, independent unconditional: 275913, dependent: 3026, dependent conditional: 0, dependent unconditional: 3026, unknown: 206655, unknown conditional: 0, unknown unconditional: 206655] , Statistics on independence cache: Total cache size (in pairs): 19839, Positive cache size: 19478, Positive conditional cache size: 0, Positive unconditional cache size: 19478, Negative cache size: 361, Negative conditional cache size: 0, Negative unconditional cache size: 361, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.3s, 780 PlacesBefore, 523 PlacesAfterwards, 765 TransitionsBefore, 505 TransitionsAfterwards, 510770 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 573 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 63 ConcurrentYvCompositions, 3 ChoiceCompositions, 656 TotalNumberOfCompositions, 2450685 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 519053, independent: 515140, independent conditional: 0, independent unconditional: 515140, dependent: 3913, dependent conditional: 0, dependent unconditional: 3913, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 233065, independent: 232477, independent conditional: 0, independent unconditional: 232477, dependent: 588, dependent conditional: 0, dependent unconditional: 588, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 519053, independent: 282663, independent conditional: 0, independent unconditional: 282663, dependent: 3325, dependent conditional: 0, dependent unconditional: 3325, unknown: 233065, unknown conditional: 0, unknown unconditional: 233065] , Statistics on independence cache: Total cache size (in pairs): 19431, Positive cache size: 19046, Positive conditional cache size: 0, Positive unconditional cache size: 19046, Negative cache size: 385, Negative conditional cache size: 0, Negative unconditional cache size: 385, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.2s, 825 PlacesBefore, 555 PlacesAfterwards, 809 TransitionsBefore, 536 TransitionsAfterwards, 574804 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 603 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 3 ChoiceCompositions, 688 TotalNumberOfCompositions, 2756876 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 601573, independent: 597412, independent conditional: 0, independent unconditional: 597412, dependent: 4161, dependent conditional: 0, dependent unconditional: 4161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 262923, independent: 262165, independent conditional: 0, independent unconditional: 262165, dependent: 758, dependent conditional: 0, dependent unconditional: 758, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 601573, independent: 335247, independent conditional: 0, independent unconditional: 335247, dependent: 3403, dependent conditional: 0, dependent unconditional: 3403, unknown: 262923, unknown conditional: 0, unknown unconditional: 262923] , Statistics on independence cache: Total cache size (in pairs): 22802, Positive cache size: 22391, Positive conditional cache size: 0, Positive unconditional cache size: 22391, Negative cache size: 411, Negative conditional cache size: 0, Negative unconditional cache size: 411, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4s, 870 PlacesBefore, 585 PlacesAfterwards, 853 TransitionsBefore, 565 TransitionsAfterwards, 642622 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 673 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 3 ChoiceCompositions, 762 TotalNumberOfCompositions, 3523180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 734275, independent: 729081, independent conditional: 0, independent unconditional: 729081, dependent: 5194, dependent conditional: 0, dependent unconditional: 5194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 295007, independent: 294213, independent conditional: 0, independent unconditional: 294213, dependent: 794, dependent conditional: 0, dependent unconditional: 794, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 734275, independent: 434868, independent conditional: 0, independent unconditional: 434868, dependent: 4400, dependent conditional: 0, dependent unconditional: 4400, unknown: 295007, unknown conditional: 0, unknown unconditional: 295007] , Statistics on independence cache: Total cache size (in pairs): 25339, Positive cache size: 24903, Positive conditional cache size: 0, Positive unconditional cache size: 24903, Negative cache size: 436, Negative conditional cache size: 0, Negative unconditional cache size: 436, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8s, 915 PlacesBefore, 617 PlacesAfterwards, 897 TransitionsBefore, 595 TransitionsAfterwards, 714224 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 689 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 67 ConcurrentYvCompositions, 4 ChoiceCompositions, 777 TotalNumberOfCompositions, 3967700 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 749049, independent: 743480, independent conditional: 0, independent unconditional: 743480, dependent: 5569, dependent conditional: 0, dependent unconditional: 5569, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 324924, independent: 324107, independent conditional: 0, independent unconditional: 324107, dependent: 817, dependent conditional: 0, dependent unconditional: 817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749049, independent: 419373, independent conditional: 0, independent unconditional: 419373, dependent: 4752, dependent conditional: 0, dependent unconditional: 4752, unknown: 324924, unknown conditional: 0, unknown unconditional: 324924] , Statistics on independence cache: Total cache size (in pairs): 26993, Positive cache size: 26532, Positive conditional cache size: 0, Positive unconditional cache size: 26532, Negative cache size: 461, Negative conditional cache size: 0, Negative unconditional cache size: 461, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2s, 960 PlacesBefore, 647 PlacesAfterwards, 941 TransitionsBefore, 625 TransitionsAfterwards, 789610 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 697 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 70 ConcurrentYvCompositions, 3 ChoiceCompositions, 787 TotalNumberOfCompositions, 3793212 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 793628, independent: 788749, independent conditional: 0, independent unconditional: 788749, dependent: 4879, dependent conditional: 0, dependent unconditional: 4879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 357005, independent: 356331, independent conditional: 0, independent unconditional: 356331, dependent: 674, dependent conditional: 0, dependent unconditional: 674, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 793628, independent: 432418, independent conditional: 0, independent unconditional: 432418, dependent: 4205, dependent conditional: 0, dependent unconditional: 4205, unknown: 357005, unknown conditional: 0, unknown unconditional: 357005] , Statistics on independence cache: Total cache size (in pairs): 32177, Positive cache size: 31697, Positive conditional cache size: 0, Positive unconditional cache size: 31697, Negative cache size: 480, Negative conditional cache size: 0, Negative unconditional cache size: 480, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.2s, 1005 PlacesBefore, 678 PlacesAfterwards, 985 TransitionsBefore, 655 TransitionsAfterwards, 868780 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 763 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 82 ConcurrentYvCompositions, 3 ChoiceCompositions, 865 TotalNumberOfCompositions, 4180136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 944158, independent: 939077, independent conditional: 0, independent unconditional: 939077, dependent: 5081, dependent conditional: 0, dependent unconditional: 5081, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 401899, independent: 401206, independent conditional: 0, independent unconditional: 401206, dependent: 693, dependent conditional: 0, dependent unconditional: 693, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 944158, independent: 537871, independent conditional: 0, independent unconditional: 537871, dependent: 4388, dependent conditional: 0, dependent unconditional: 4388, unknown: 401899, unknown conditional: 0, unknown unconditional: 401899] , Statistics on independence cache: Total cache size (in pairs): 40999, Positive cache size: 40495, Positive conditional cache size: 0, Positive unconditional cache size: 40495, Negative cache size: 504, Negative conditional cache size: 0, Negative unconditional cache size: 504, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9s, 1050 PlacesBefore, 709 PlacesAfterwards, 1029 TransitionsBefore, 685 TransitionsAfterwards, 951734 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 763 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 78 ConcurrentYvCompositions, 3 ChoiceCompositions, 861 TotalNumberOfCompositions, 4595489 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 988545, independent: 983170, independent conditional: 0, independent unconditional: 983170, dependent: 5375, dependent conditional: 0, dependent unconditional: 5375, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 442731, independent: 441484, independent conditional: 0, independent unconditional: 441484, dependent: 1247, dependent conditional: 0, dependent unconditional: 1247, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 988545, independent: 541686, independent conditional: 0, independent unconditional: 541686, dependent: 4128, dependent conditional: 0, dependent unconditional: 4128, unknown: 442731, unknown conditional: 0, unknown unconditional: 442731] , Statistics on independence cache: Total cache size (in pairs): 52268, Positive cache size: 51564, Positive conditional cache size: 0, Positive unconditional cache size: 51564, Negative cache size: 704, Negative conditional cache size: 0, Negative unconditional cache size: 704, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.5s, 1095 PlacesBefore, 740 PlacesAfterwards, 1073 TransitionsBefore, 715 TransitionsAfterwards, 1038472 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 789 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 84 ConcurrentYvCompositions, 3 ChoiceCompositions, 893 TotalNumberOfCompositions, 5763683 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1127716, independent: 1121004, independent conditional: 0, independent unconditional: 1121004, dependent: 6712, dependent conditional: 0, dependent unconditional: 6712, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 474999, independent: 473872, independent conditional: 0, independent unconditional: 473872, dependent: 1127, dependent conditional: 0, dependent unconditional: 1127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1127716, independent: 647132, independent conditional: 0, independent unconditional: 647132, dependent: 5585, dependent conditional: 0, dependent unconditional: 5585, unknown: 474999, unknown conditional: 0, unknown unconditional: 474999] , Statistics on independence cache: Total cache size (in pairs): 41390, Positive cache size: 40746, Positive conditional cache size: 0, Positive unconditional cache size: 40746, Negative cache size: 644, Negative conditional cache size: 0, Negative unconditional cache size: 644, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.1s, 1140 PlacesBefore, 771 PlacesAfterwards, 1117 TransitionsBefore, 745 TransitionsAfterwards, 1128994 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 855 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 90 ConcurrentYvCompositions, 3 ChoiceCompositions, 965 TotalNumberOfCompositions, 5458426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1158245, independent: 1152415, independent conditional: 0, independent unconditional: 1152415, dependent: 5830, dependent conditional: 0, dependent unconditional: 5830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 515679, independent: 514664, independent conditional: 0, independent unconditional: 514664, dependent: 1015, dependent conditional: 0, dependent unconditional: 1015, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1158245, independent: 637751, independent conditional: 0, independent unconditional: 637751, dependent: 4815, dependent conditional: 0, dependent unconditional: 4815, unknown: 515679, unknown conditional: 0, unknown unconditional: 515679] , Statistics on independence cache: Total cache size (in pairs): 48295, Positive cache size: 47718, Positive conditional cache size: 0, Positive unconditional cache size: 47718, Negative cache size: 577, Negative conditional cache size: 0, Negative unconditional cache size: 577, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.2s, 1185 PlacesBefore, 802 PlacesAfterwards, 1161 TransitionsBefore, 775 TransitionsAfterwards, 1223300 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 896 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 87 ConcurrentYvCompositions, 3 ChoiceCompositions, 1003 TotalNumberOfCompositions, 5944591 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1275283, independent: 1269200, independent conditional: 0, independent unconditional: 1269200, dependent: 6083, dependent conditional: 0, dependent unconditional: 6083, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 564071, independent: 562978, independent conditional: 0, independent unconditional: 562978, dependent: 1093, dependent conditional: 0, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1275283, independent: 706222, independent conditional: 0, independent unconditional: 706222, dependent: 4990, dependent conditional: 0, dependent unconditional: 4990, unknown: 564071, unknown conditional: 0, unknown unconditional: 564071] , Statistics on independence cache: Total cache size (in pairs): 60797, Positive cache size: 59998, Positive conditional cache size: 0, Positive unconditional cache size: 59998, Negative cache size: 799, Negative conditional cache size: 0, Negative unconditional cache size: 799, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.8s, 1230 PlacesBefore, 833 PlacesAfterwards, 1205 TransitionsBefore, 805 TransitionsAfterwards, 1321390 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 937 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 100 ConcurrentYvCompositions, 3 ChoiceCompositions, 1057 TotalNumberOfCompositions, 7365268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1475029, independent: 1467495, independent conditional: 0, independent unconditional: 1467495, dependent: 7534, dependent conditional: 0, dependent unconditional: 7534, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 600117, independent: 598920, independent conditional: 0, independent unconditional: 598920, dependent: 1197, dependent conditional: 0, dependent unconditional: 1197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1475029, independent: 868575, independent conditional: 0, independent unconditional: 868575, dependent: 6337, dependent conditional: 0, dependent unconditional: 6337, unknown: 600117, unknown conditional: 0, unknown unconditional: 600117] , Statistics on independence cache: Total cache size (in pairs): 46368, Positive cache size: 45639, Positive conditional cache size: 0, Positive unconditional cache size: 45639, Negative cache size: 729, Negative conditional cache size: 0, Negative unconditional cache size: 729, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9s, 1275 PlacesBefore, 864 PlacesAfterwards, 1249 TransitionsBefore, 834 TransitionsAfterwards, 1423264 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 953 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 100 ConcurrentYvCompositions, 4 ChoiceCompositions, 1074 TotalNumberOfCompositions, 6930055 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1437890, independent: 1431301, independent conditional: 0, independent unconditional: 1431301, dependent: 6589, dependent conditional: 0, dependent unconditional: 6589, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 661167, independent: 659530, independent conditional: 0, independent unconditional: 659530, dependent: 1637, dependent conditional: 0, dependent unconditional: 1637, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1437890, independent: 771771, independent conditional: 0, independent unconditional: 771771, dependent: 4952, dependent conditional: 0, dependent unconditional: 4952, unknown: 661167, unknown conditional: 0, unknown unconditional: 661167] , Statistics on independence cache: Total cache size (in pairs): 74923, Positive cache size: 73976, Positive conditional cache size: 0, Positive unconditional cache size: 73976, Negative cache size: 947, Negative conditional cache size: 0, Negative unconditional cache size: 947, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.8s, 1320 PlacesBefore, 896 PlacesAfterwards, 1293 TransitionsBefore, 865 TransitionsAfterwards, 1528922 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 966 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 101 ConcurrentYvCompositions, 4 ChoiceCompositions, 1088 TotalNumberOfCompositions, 7468009 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1694803, independent: 1687949, independent conditional: 0, independent unconditional: 1687949, dependent: 6854, dependent conditional: 0, dependent unconditional: 6854, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 712396, independent: 710926, independent conditional: 0, independent unconditional: 710926, dependent: 1470, dependent conditional: 0, dependent unconditional: 1470, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1694803, independent: 977023, independent conditional: 0, independent unconditional: 977023, dependent: 5384, dependent conditional: 0, dependent unconditional: 5384, unknown: 712396, unknown conditional: 0, unknown unconditional: 712396] , Statistics on independence cache: Total cache size (in pairs): 84214, Positive cache size: 83536, Positive conditional cache size: 0, Positive unconditional cache size: 83536, Negative cache size: 678, Negative conditional cache size: 0, Negative unconditional cache size: 678, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.9s, 1365 PlacesBefore, 926 PlacesAfterwards, 1337 TransitionsBefore, 895 TransitionsAfterwards, 1638364 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1063 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 105 ConcurrentYvCompositions, 3 ChoiceCompositions, 1188 TotalNumberOfCompositions, 8004824 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1787864, independent: 1780842, independent conditional: 0, independent unconditional: 1780842, dependent: 7022, dependent conditional: 0, dependent unconditional: 7022, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 755423, independent: 754282, independent conditional: 0, independent unconditional: 754282, dependent: 1141, dependent conditional: 0, dependent unconditional: 1141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1787864, independent: 1026560, independent conditional: 0, independent unconditional: 1026560, dependent: 5881, dependent conditional: 0, dependent unconditional: 5881, unknown: 755423, unknown conditional: 0, unknown unconditional: 755423] , Statistics on independence cache: Total cache size (in pairs): 75629, Positive cache size: 74932, Positive conditional cache size: 0, Positive unconditional cache size: 74932, Negative cache size: 697, Negative conditional cache size: 0, Negative unconditional cache size: 697, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.8s, 1410 PlacesBefore, 957 PlacesAfterwards, 1381 TransitionsBefore, 925 TransitionsAfterwards, 1751590 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1080 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 3 ChoiceCompositions, 1207 TotalNumberOfCompositions, 8557317 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1762494, independent: 1755224, independent conditional: 0, independent unconditional: 1755224, dependent: 7270, dependent conditional: 0, dependent unconditional: 7270, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 794920, independent: 793750, independent conditional: 0, independent unconditional: 793750, dependent: 1170, dependent conditional: 0, dependent unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1762494, independent: 961474, independent conditional: 0, independent unconditional: 961474, dependent: 6100, dependent conditional: 0, dependent unconditional: 6100, unknown: 794920, unknown conditional: 0, unknown unconditional: 794920] , Statistics on independence cache: Total cache size (in pairs): 59158, Positive cache size: 58348, Positive conditional cache size: 0, Positive unconditional cache size: 58348, Negative cache size: 810, Negative conditional cache size: 0, Negative unconditional cache size: 810, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0s, 1455 PlacesBefore, 988 PlacesAfterwards, 1425 TransitionsBefore, 955 TransitionsAfterwards, 1868600 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1105 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 109 ConcurrentYvCompositions, 3 ChoiceCompositions, 1234 TotalNumberOfCompositions, 9098568 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1934826, independent: 1927308, independent conditional: 0, independent unconditional: 1927308, dependent: 7518, dependent conditional: 0, dependent unconditional: 7518, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 843712, independent: 842111, independent conditional: 0, independent unconditional: 842111, dependent: 1601, dependent conditional: 0, dependent unconditional: 1601, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1934826, independent: 1085197, independent conditional: 0, independent unconditional: 1085197, dependent: 5917, dependent conditional: 0, dependent unconditional: 5917, unknown: 843712, unknown conditional: 0, unknown unconditional: 843712] , Statistics on independence cache: Total cache size (in pairs): 65826, Positive cache size: 65028, Positive conditional cache size: 0, Positive unconditional cache size: 65028, Negative cache size: 798, Negative conditional cache size: 0, Negative unconditional cache size: 798, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.7s, 1500 PlacesBefore, 1019 PlacesAfterwards, 1469 TransitionsBefore, 985 TransitionsAfterwards, 1989394 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1126 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 112 ConcurrentYvCompositions, 3 ChoiceCompositions, 1258 TotalNumberOfCompositions, 9715891 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1906670, independent: 1898889, independent conditional: 0, independent unconditional: 1898889, dependent: 7781, dependent conditional: 0, dependent unconditional: 7781, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 888056, independent: 886758, independent conditional: 0, independent unconditional: 886758, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1906670, independent: 1012131, independent conditional: 0, independent unconditional: 1012131, dependent: 6483, dependent conditional: 0, dependent unconditional: 6483, unknown: 888056, unknown conditional: 0, unknown unconditional: 888056] , Statistics on independence cache: Total cache size (in pairs): 64124, Positive cache size: 63227, Positive conditional cache size: 0, Positive unconditional cache size: 63227, Negative cache size: 897, Negative conditional cache size: 0, Negative unconditional cache size: 897, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.7s, 1545 PlacesBefore, 1050 PlacesAfterwards, 1513 TransitionsBefore, 1015 TransitionsAfterwards, 2113972 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1167 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 119 ConcurrentYvCompositions, 3 ChoiceCompositions, 1306 TotalNumberOfCompositions, 10341980 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2173492, independent: 2165480, independent conditional: 0, independent unconditional: 2165480, dependent: 8012, dependent conditional: 0, dependent unconditional: 8012, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 980118, independent: 978333, independent conditional: 0, independent unconditional: 978333, dependent: 1785, dependent conditional: 0, dependent unconditional: 1785, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2173492, independent: 1187147, independent conditional: 0, independent unconditional: 1187147, dependent: 6227, dependent conditional: 0, dependent unconditional: 6227, unknown: 980118, unknown conditional: 0, unknown unconditional: 980118] , Statistics on independence cache: Total cache size (in pairs): 111013, Positive cache size: 109773, Positive conditional cache size: 0, Positive unconditional cache size: 109773, Negative cache size: 1240, Negative conditional cache size: 0, Negative unconditional cache size: 1240, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5s, 1590 PlacesBefore, 1081 PlacesAfterwards, 1557 TransitionsBefore, 1045 TransitionsAfterwards, 2242334 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 1198 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 123 ConcurrentYvCompositions, 3 ChoiceCompositions, 1341 TotalNumberOfCompositions, 10940942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2231519, independent: 2223291, independent conditional: 0, independent unconditional: 2223291, dependent: 8228, dependent conditional: 0, dependent unconditional: 8228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1038115, independent: 1036078, independent conditional: 0, independent unconditional: 1036078, dependent: 2037, dependent conditional: 0, dependent unconditional: 2037, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2231519, independent: 1187213, independent conditional: 0, independent unconditional: 1187213, dependent: 6191, dependent conditional: 0, dependent unconditional: 6191, unknown: 1038115, unknown conditional: 0, unknown unconditional: 1038115] , Statistics on independence cache: Total cache size (in pairs): 112949, Positive cache size: 111651, Positive conditional cache size: 0, Positive unconditional cache size: 111651, Negative cache size: 1298, Negative conditional cache size: 0, Negative unconditional cache size: 1298, 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 1635 places, 1601 transitions, 4570 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1635 places, 1601 transitions, 4570 flow and 2374480 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 16 for 1ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-08-26 14:59:05,570 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