/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.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:09:12,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:09:12,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:09:12,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 00:09:12,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 00:09:12,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 00:09:12,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 00:09:12,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 00:09:12,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 00:09:12,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 00:09:12,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 00:09:12,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2023-01-28 00:09:12,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:09:12,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:09:12,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:09:12,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:09:12,994 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:09:12,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:09:12,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:09:12,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:09:12,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:09:12,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:09:12,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:09:12,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:09:12,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:09:12,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:09:12,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:09:12,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:09:12,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:09:12,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:09:12,998 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:09:13,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:09:13,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:09:13,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:09:13,221 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:09:13,221 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:09:13,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-01-28 00:09:14,293 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:09:14,431 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:09:14,431 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i [2023-01-28 00:09:14,440 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99aad4fb4/c1516550c6a541d4bd359ba8f3f04cbe/FLAGf1b409fa4 [2023-01-28 00:09:14,450 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99aad4fb4/c1516550c6a541d4bd359ba8f3f04cbe [2023-01-28 00:09:14,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:09:14,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:09:14,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:09:14,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:09:14,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:09:14,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eec5e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14, skipping insertion in model container [2023-01-28 00:09:14,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:09:14,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:09:14,723 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-01-28 00:09:14,732 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:09:14,744 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:09:14,782 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longest-2.i[31164,31177] [2023-01-28 00:09:14,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:09:14,807 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:09:14,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14 WrapperNode [2023-01-28 00:09:14,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:09:14,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:09:14,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:09:14,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:09:14,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,839 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 188 [2023-01-28 00:09:14,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:09:14,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:09:14,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:09:14,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:09:14,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,858 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:09:14,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:09:14,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:09:14,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:09:14,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (1/1) ... [2023-01-28 00:09:14,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:09:14,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:09:14,887 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) [2023-01-28 00:09:14,903 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 [2023-01-28 00:09:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 00:09:14,915 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 00:09:14,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:09:14,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:09:14,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:09:14,917 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:09:15,102 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:09:15,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:09:15,470 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:09:15,658 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:09:15,658 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-28 00:09:15,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:09:15 BoogieIcfgContainer [2023-01-28 00:09:15,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:09:15,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:09:15,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:09:15,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:09:15,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:09:14" (1/3) ... [2023-01-28 00:09:15,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ce5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:09:15, skipping insertion in model container [2023-01-28 00:09:15,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:14" (2/3) ... [2023-01-28 00:09:15,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645ce5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:09:15, skipping insertion in model container [2023-01-28 00:09:15,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:09:15" (3/3) ... [2023-01-28 00:09:15,665 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longest-2.i [2023-01-28 00:09:15,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:09:15,676 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:09:15,676 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:09:15,721 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:15,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,773 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:09:15,773 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:09:15,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:09:15,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,784 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:15,790 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,792 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:09:15,809 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:09:15,810 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:09:15,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:09:15,812 INFO L119 LiptonReduction]: Number of co-enabled transitions 2028 [2023-01-28 00:09:18,805 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-01-28 00:09:18,805 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-01-28 00:09:18,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:18,840 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:18,840 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:18,849 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2023-01-28 00:09:18,849 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:09:18,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:18,850 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 00:09:18,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:18,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash 174361225, now seen corresponding path program 1 times [2023-01-28 00:09:18,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291076065] [2023-01-28 00:09:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:18,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:19,019 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:19,021 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:19,021 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:19,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:09:19,023 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:19,025 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:19,025 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:19,025 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 00:09:19,091 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:19,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,150 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:09:19,150 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:09:19,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:09:19,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,157 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:19,157 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:09:19,182 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:09:19,183 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:09:19,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:09:19,192 INFO L119 LiptonReduction]: Number of co-enabled transitions 16380 [2023-01-28 00:09:22,883 INFO L134 LiptonReduction]: Checked pairs total: 33585 [2023-01-28 00:09:22,883 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-01-28 00:09:22,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:22,890 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:22,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:22,893 INFO L130 PetriNetUnfolder]: 4/34 cut-off events. [2023-01-28 00:09:22,893 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:09:22,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:22,893 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 00:09:22,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:22,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:22,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1971217253, now seen corresponding path program 1 times [2023-01-28 00:09:22,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:22,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105011615] [2023-01-28 00:09:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:22,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:22,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:22,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:22,958 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:22,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:22,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:09:22,959 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:22,959 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:22,959 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:22,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 00:09:23,006 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:23,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,046 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:09:23,046 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:09:23,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:09:23,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,050 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:23,051 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,051 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:09:23,108 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:09:23,109 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:09:23,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:09:23,127 INFO L119 LiptonReduction]: Number of co-enabled transitions 43056 [2023-01-28 00:09:28,220 INFO L134 LiptonReduction]: Checked pairs total: 78907 [2023-01-28 00:09:28,221 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-01-28 00:09:28,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:28,223 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:28,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:28,229 INFO L130 PetriNetUnfolder]: 8/62 cut-off events. [2023-01-28 00:09:28,229 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:09:28,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:28,230 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 00:09:28,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:28,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:28,230 INFO L85 PathProgramCache]: Analyzing trace with hash -271960691, now seen corresponding path program 1 times [2023-01-28 00:09:28,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:28,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727472604] [2023-01-28 00:09:28,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:28,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:28,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:28,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:28,259 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:28,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:28,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:09:28,260 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:28,260 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:28,260 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:28,260 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 00:09:28,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:28,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,380 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:09:28,381 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:09:28,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:09:28,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:28,389 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,390 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:09:28,451 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:09:28,452 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:09:28,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:09:28,471 INFO L119 LiptonReduction]: Number of co-enabled transitions 82056 [2023-01-28 00:09:34,523 INFO L134 LiptonReduction]: Checked pairs total: 163123 [2023-01-28 00:09:34,523 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-01-28 00:09:34,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:34,525 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:34,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:34,533 INFO L130 PetriNetUnfolder]: 16/101 cut-off events. [2023-01-28 00:09:34,533 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:09:34,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:34,534 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:34,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:34,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1535314522, now seen corresponding path program 1 times [2023-01-28 00:09:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:34,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569093872] [2023-01-28 00:09:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:34,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:34,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:34,588 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:34,588 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:34,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:34,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:09:34,588 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:34,589 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:34,589 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:34,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 00:09:34,634 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:34,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,702 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:09:34,702 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:09:34,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:09:34,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,713 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:34,713 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,713 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:09:34,808 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:09:34,808 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:09:34,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:09:34,830 INFO L119 LiptonReduction]: Number of co-enabled transitions 133380 [2023-01-28 00:09:41,581 INFO L134 LiptonReduction]: Checked pairs total: 266074 [2023-01-28 00:09:41,604 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-01-28 00:09:41,608 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:41,609 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:41,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:41,619 INFO L130 PetriNetUnfolder]: 22/128 cut-off events. [2023-01-28 00:09:41,619 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:09:41,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:41,620 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:41,620 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:41,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:41,620 INFO L85 PathProgramCache]: Analyzing trace with hash -821437459, now seen corresponding path program 1 times [2023-01-28 00:09:41,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:41,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023010948] [2023-01-28 00:09:41,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:41,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:41,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:41,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:41,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:41,679 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:41,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:09:41,680 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:41,680 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:41,680 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:41,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 00:09:41,733 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:41,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,826 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:09:41,826 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:09:41,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:09:41,835 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,843 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:41,843 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,844 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:09:41,988 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:09:41,991 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:09:41,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:09:42,026 INFO L119 LiptonReduction]: Number of co-enabled transitions 197028 [2023-01-28 00:09:49,582 INFO L134 LiptonReduction]: Checked pairs total: 408501 [2023-01-28 00:09:49,582 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-01-28 00:09:49,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:49,587 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:49,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:49,630 INFO L130 PetriNetUnfolder]: 28/162 cut-off events. [2023-01-28 00:09:49,630 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:09:49,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:49,630 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:49,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:49,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash 657747243, now seen corresponding path program 1 times [2023-01-28 00:09:49,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:49,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143552852] [2023-01-28 00:09:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:49,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:49,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:49,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:49,658 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:49,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:49,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:09:49,659 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:49,659 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:49,659 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:49,659 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 00:09:49,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:49,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:49,924 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:09:49,924 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:09:49,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:09:49,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:49,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:49,943 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:49,943 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:49,943 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:49,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:09:50,083 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:09:50,083 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:09:50,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:09:50,143 INFO L119 LiptonReduction]: Number of co-enabled transitions 273000 [2023-01-28 00:09:58,485 INFO L134 LiptonReduction]: Checked pairs total: 601155 [2023-01-28 00:09:58,485 INFO L136 LiptonReduction]: Total number of compositions: 471 [2023-01-28 00:09:58,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:58,501 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:58,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:58,520 INFO L130 PetriNetUnfolder]: 36/197 cut-off events. [2023-01-28 00:09:58,520 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:09:58,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:58,521 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:58,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:58,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 31876957, now seen corresponding path program 1 times [2023-01-28 00:09:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279717147] [2023-01-28 00:09:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:58,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:58,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:58,575 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:58,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:58,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:09:58,576 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:58,577 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:58,577 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:58,577 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-28 00:09:58,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:58,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,803 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:09:58,804 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:09:58,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:09:58,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,827 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:58,827 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,827 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:09:58,973 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:09:58,973 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:09:58,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:09:59,048 INFO L119 LiptonReduction]: Number of co-enabled transitions 361296 [2023-01-28 00:10:09,707 INFO L134 LiptonReduction]: Checked pairs total: 812240 [2023-01-28 00:10:09,707 INFO L136 LiptonReduction]: Total number of compositions: 534 [2023-01-28 00:10:09,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:09,711 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:09,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:09,767 INFO L130 PetriNetUnfolder]: 43/234 cut-off events. [2023-01-28 00:10:09,767 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:10:09,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:09,768 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:09,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:09,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -277617304, now seen corresponding path program 1 times [2023-01-28 00:10:09,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:09,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936797927] [2023-01-28 00:10:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:09,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:09,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:09,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:09,817 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:09,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:10:09,817 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:09,819 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:09,819 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:09,819 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-28 00:10:09,902 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:09,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,093 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:10:10,094 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:10,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:10:10,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,125 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:10,125 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,126 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:10:10,346 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:10:10,346 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:10,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:10:10,436 INFO L119 LiptonReduction]: Number of co-enabled transitions 461916 [2023-01-28 00:10:22,516 INFO L134 LiptonReduction]: Checked pairs total: 929047 [2023-01-28 00:10:22,516 INFO L136 LiptonReduction]: Total number of compositions: 598 [2023-01-28 00:10:22,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:22,518 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:22,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:22,543 INFO L130 PetriNetUnfolder]: 50/267 cut-off events. [2023-01-28 00:10:22,544 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:22,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:22,544 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:22,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:22,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash -392173397, now seen corresponding path program 1 times [2023-01-28 00:10:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143373744] [2023-01-28 00:10:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:22,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:22,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:22,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:22,577 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:22,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:22,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:10:22,577 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:22,577 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:22,578 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:22,578 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-28 00:10:22,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:22,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:22,963 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:10:22,963 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:22,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:10:22,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:23,002 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:23,002 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:23,002 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:23,002 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:23,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:10:23,224 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:10:23,224 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:23,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:10:23,345 INFO L119 LiptonReduction]: Number of co-enabled transitions 574860 [2023-01-28 00:10:36,561 INFO L134 LiptonReduction]: Checked pairs total: 1167442 [2023-01-28 00:10:36,561 INFO L136 LiptonReduction]: Total number of compositions: 663 [2023-01-28 00:10:36,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:36,563 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:36,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:36,595 INFO L130 PetriNetUnfolder]: 57/301 cut-off events. [2023-01-28 00:10:36,595 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:36,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:36,595 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:36,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:36,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1279378807, now seen corresponding path program 1 times [2023-01-28 00:10:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462175259] [2023-01-28 00:10:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:36,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:36,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:36,641 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:36,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:36,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:10:36,642 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:36,643 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:36,643 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:36,643 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-28 00:10:36,743 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:36,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,034 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:10:37,035 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:37,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:10:37,067 INFO L82 GeneralOperation]: Start removeDead. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,079 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:37,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,080 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:10:37,416 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:10:37,416 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:37,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:10:37,543 INFO L119 LiptonReduction]: Number of co-enabled transitions 700128 [2023-01-28 00:10:49,442 INFO L134 LiptonReduction]: Checked pairs total: 1457710 [2023-01-28 00:10:49,442 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-01-28 00:10:49,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:49,443 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:49,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:49,480 INFO L130 PetriNetUnfolder]: 64/332 cut-off events. [2023-01-28 00:10:49,480 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:49,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:49,480 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:49,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:49,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:49,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2091456884, now seen corresponding path program 1 times [2023-01-28 00:10:49,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:49,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955335939] [2023-01-28 00:10:49,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:49,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:49,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:49,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:49,516 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:49,516 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:49,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:10:49,517 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:49,517 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:49,517 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:49,517 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-28 00:10:49,614 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:49,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:49,972 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:10:49,972 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:50,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:10:50,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:50,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:50,019 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:50,019 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:50,020 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:50,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:10:50,355 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:10:50,355 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:50,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:10:50,540 INFO L119 LiptonReduction]: Number of co-enabled transitions 837720 [2023-01-28 00:11:04,249 INFO L134 LiptonReduction]: Checked pairs total: 1744929 [2023-01-28 00:11:04,249 INFO L136 LiptonReduction]: Total number of compositions: 788 [2023-01-28 00:11:04,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:04,251 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:04,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:04,296 INFO L130 PetriNetUnfolder]: 70/367 cut-off events. [2023-01-28 00:11:04,296 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:11:04,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:04,296 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:04,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:04,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:04,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1844041229, now seen corresponding path program 1 times [2023-01-28 00:11:04,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41898729] [2023-01-28 00:11:04,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:04,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:04,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:04,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:04,387 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:04,387 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:04,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:11:04,387 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:04,389 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:04,389 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:04,389 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-28 00:11:04,503 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:04,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:04,961 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:11:04,961 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:11:04,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:11:04,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:05,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:05,007 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:05,007 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:05,008 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:05,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:11:05,443 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:11:05,443 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:11:05,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:11:05,659 INFO L119 LiptonReduction]: Number of co-enabled transitions 987636 [2023-01-28 00:11:20,415 INFO L134 LiptonReduction]: Checked pairs total: 2255991 [2023-01-28 00:11:20,415 INFO L136 LiptonReduction]: Total number of compositions: 848 [2023-01-28 00:11:20,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:20,419 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:20,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:20,471 INFO L130 PetriNetUnfolder]: 79/407 cut-off events. [2023-01-28 00:11:20,471 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:11:20,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:20,471 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:20,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:20,472 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash -268375454, now seen corresponding path program 1 times [2023-01-28 00:11:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:20,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472740184] [2023-01-28 00:11:20,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:20,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:20,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:20,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:20,547 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:20,548 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:20,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 00:11:20,548 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:20,549 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:20,549 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:20,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-28 00:11:20,678 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:20,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,136 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:11:21,136 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:21,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:11:21,191 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,210 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:21,210 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,210 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:11:21,701 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:11:21,701 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:21,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:11:21,903 INFO L119 LiptonReduction]: Number of co-enabled transitions 1149876 [2023-01-28 00:11:36,939 INFO L134 LiptonReduction]: Checked pairs total: 2617201 [2023-01-28 00:11:36,939 INFO L136 LiptonReduction]: Total number of compositions: 914 [2023-01-28 00:11:36,941 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:36,941 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:36,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:37,001 INFO L130 PetriNetUnfolder]: 84/437 cut-off events. [2023-01-28 00:11:37,002 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:37,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:37,003 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:37,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:37,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:37,004 INFO L85 PathProgramCache]: Analyzing trace with hash 72312746, now seen corresponding path program 1 times [2023-01-28 00:11:37,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:37,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117957727] [2023-01-28 00:11:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:37,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:37,047 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:37,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:37,067 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:37,067 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:37,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 00:11:37,067 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:37,068 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:37,068 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:37,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-28 00:11:37,202 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:37,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:37,715 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:11:37,715 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:37,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:11:37,777 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:37,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:37,799 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:37,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:37,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:37,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:11:38,339 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:11:38,339 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:38,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:11:38,582 INFO L119 LiptonReduction]: Number of co-enabled transitions 1324440 [2023-01-28 00:11:55,173 INFO L134 LiptonReduction]: Checked pairs total: 2975786 [2023-01-28 00:11:55,173 INFO L136 LiptonReduction]: Total number of compositions: 974 [2023-01-28 00:11:55,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:55,176 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:55,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:55,241 INFO L130 PetriNetUnfolder]: 91/469 cut-off events. [2023-01-28 00:11:55,241 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:55,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:55,241 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:55,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:55,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:55,241 INFO L85 PathProgramCache]: Analyzing trace with hash 459114490, now seen corresponding path program 1 times [2023-01-28 00:11:55,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:55,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727054464] [2023-01-28 00:11:55,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:55,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:55,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:55,298 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:55,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:55,321 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:55,321 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:55,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 00:11:55,321 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:55,321 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:55,322 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:55,322 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-28 00:11:55,458 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:55,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,118 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:11:56,119 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:56,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:11:56,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,179 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,179 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:56,179 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,180 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:56,749 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:11:56,749 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:56,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:11:57,094 INFO L119 LiptonReduction]: Number of co-enabled transitions 1511328 [2023-01-28 00:12:15,618 INFO L134 LiptonReduction]: Checked pairs total: 3418394 [2023-01-28 00:12:15,619 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-01-28 00:12:15,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:15,625 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:15,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:15,699 INFO L130 PetriNetUnfolder]: 98/507 cut-off events. [2023-01-28 00:12:15,699 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:12:15,699 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:15,699 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:12:15,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:15,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:15,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175113, now seen corresponding path program 1 times [2023-01-28 00:12:15,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:15,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357477014] [2023-01-28 00:12:15,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:15,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:15,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:15,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:15,764 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:15,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:15,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 00:12:15,764 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:15,764 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:15,764 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:15,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-28 00:12:15,905 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:15,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:16,595 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:12:16,595 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:12:16,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:12:16,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:16,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:16,678 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:16,678 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:16,679 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:16,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:12:17,332 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:12:17,332 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:12:17,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:12:17,729 INFO L119 LiptonReduction]: Number of co-enabled transitions 1710540 [2023-01-28 00:12:38,842 INFO L134 LiptonReduction]: Checked pairs total: 3860000 [2023-01-28 00:12:38,842 INFO L136 LiptonReduction]: Total number of compositions: 1094 [2023-01-28 00:12:38,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:38,850 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:38,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:39,003 INFO L130 PetriNetUnfolder]: 106/540 cut-off events. [2023-01-28 00:12:39,003 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:12:39,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:39,003 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:12:39,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:39,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:39,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2044922245, now seen corresponding path program 1 times [2023-01-28 00:12:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832914178] [2023-01-28 00:12:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:39,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:39,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:39,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:39,059 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:39,059 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:39,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 00:12:39,059 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:39,059 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:39,059 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:39,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-28 00:12:39,195 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:39,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:39,944 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:12:39,944 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:40,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:12:40,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:40,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:40,070 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:40,070 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:40,070 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:40,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:40,868 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:12:40,868 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:40,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:12:41,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922076 [2023-01-28 00:13:03,899 INFO L134 LiptonReduction]: Checked pairs total: 4368552 [2023-01-28 00:13:03,899 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-01-28 00:13:03,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:03,901 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:03,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:04,003 INFO L130 PetriNetUnfolder]: 113/575 cut-off events. [2023-01-28 00:13:04,003 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:13:04,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:04,003 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:13:04,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:04,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:04,003 INFO L85 PathProgramCache]: Analyzing trace with hash -28340825, now seen corresponding path program 1 times [2023-01-28 00:13:04,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:04,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267477341] [2023-01-28 00:13:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:04,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:04,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:04,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:04,059 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:04,059 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:04,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 00:13:04,059 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:04,059 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:04,059 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:04,059 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-28 00:13:04,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:04,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:05,074 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:13:05,075 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:13:05,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:13:05,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:05,213 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:05,213 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:05,213 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:05,213 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:05,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:13:06,130 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:13:06,130 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:13:06,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:13:06,557 INFO L119 LiptonReduction]: Number of co-enabled transitions 2145936 [2023-01-28 00:13:29,500 INFO L134 LiptonReduction]: Checked pairs total: 4909396 [2023-01-28 00:13:29,501 INFO L136 LiptonReduction]: Total number of compositions: 1227 [2023-01-28 00:13:29,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:29,503 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:29,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:29,617 INFO L130 PetriNetUnfolder]: 120/608 cut-off events. [2023-01-28 00:13:29,617 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:13:29,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:29,617 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:13:29,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:29,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1576653855, now seen corresponding path program 1 times [2023-01-28 00:13:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776503685] [2023-01-28 00:13:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:29,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:29,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:29,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:29,680 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:29,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:29,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 00:13:29,680 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:29,680 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:29,680 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:29,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-28 00:13:29,827 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:29,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:30,800 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:30,800 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:30,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:30,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:30,903 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:30,904 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:30,904 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:30,904 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:30,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:31,790 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:31,791 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:31,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:32,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382120 [2023-01-28 00:13:57,457 INFO L134 LiptonReduction]: Checked pairs total: 5438150 [2023-01-28 00:13:57,457 INFO L136 LiptonReduction]: Total number of compositions: 1292 [2023-01-28 00:13:57,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:57,459 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:57,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:57,584 INFO L130 PetriNetUnfolder]: 126/642 cut-off events. [2023-01-28 00:13:57,584 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:57,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:57,585 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:13:57,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:57,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:57,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1517417906, now seen corresponding path program 1 times [2023-01-28 00:13:57,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:57,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829416479] [2023-01-28 00:13:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:57,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:57,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:57,658 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:57,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:57,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 00:13:57,658 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:57,658 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:57,658 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:57,658 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-28 00:13:57,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:57,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:58,925 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:13:58,926 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:13:59,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:13:59,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:59,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:59,087 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:59,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:59,087 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:13:59,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:00,257 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:14:00,257 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:00,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:14:01,030 INFO L119 LiptonReduction]: Number of co-enabled transitions 2630628 [2023-01-28 00:14:28,281 INFO L134 LiptonReduction]: Checked pairs total: 6023620 [2023-01-28 00:14:28,281 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-01-28 00:14:28,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:28,283 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:28,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:28,455 INFO L130 PetriNetUnfolder]: 133/679 cut-off events. [2023-01-28 00:14:28,456 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:28,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:28,456 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:14:28,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:28,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:28,456 INFO L85 PathProgramCache]: Analyzing trace with hash 487342399, now seen corresponding path program 1 times [2023-01-28 00:14:28,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:28,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888922541] [2023-01-28 00:14:28,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:28,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:28,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:28,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:28,569 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:28,569 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:28,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 00:14:28,569 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:28,569 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:28,569 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:28,569 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-28 00:14:28,746 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:28,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:29,975 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:29,976 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:30,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:30,084 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:30,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:30,123 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:30,124 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:30,124 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:30,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:31,324 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:31,324 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:31,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:31,915 INFO L119 LiptonReduction]: Number of co-enabled transitions 2891460 [2023-01-28 00:14:57,393 INFO L134 LiptonReduction]: Checked pairs total: 5961511 [2023-01-28 00:14:57,393 INFO L136 LiptonReduction]: Total number of compositions: 1418 [2023-01-28 00:14:57,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:57,395 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:57,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:57,548 INFO L130 PetriNetUnfolder]: 141/711 cut-off events. [2023-01-28 00:14:57,548 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:57,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:57,548 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:14:57,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:57,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash -232205019, now seen corresponding path program 1 times [2023-01-28 00:14:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182377501] [2023-01-28 00:14:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:57,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:57,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:57,627 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:57,627 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:57,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 00:14:57,627 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:57,627 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:57,627 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:57,627 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-28 00:14:57,808 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:57,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,454 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:14:59,454 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:14:59,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:14:59,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,583 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,583 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:59,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,583 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:14:59,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:01,205 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:15:01,205 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:15:01,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:15:01,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164616 [2023-01-28 00:15:30,961 INFO L134 LiptonReduction]: Checked pairs total: 6441936 [2023-01-28 00:15:30,961 INFO L136 LiptonReduction]: Total number of compositions: 1478 [2023-01-28 00:15:30,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:30,963 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:30,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:31,127 INFO L130 PetriNetUnfolder]: 148/745 cut-off events. [2023-01-28 00:15:31,127 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:15:31,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:31,128 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:15:31,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:31,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1237637143, now seen corresponding path program 1 times [2023-01-28 00:15:31,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:31,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041677783] [2023-01-28 00:15:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:31,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:31,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:31,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:31,205 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:31,205 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:31,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-28 00:15:31,205 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:31,205 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:31,205 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:31,205 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-28 00:15:31,378 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:31,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:32,821 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:15:32,822 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:15:32,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:15:32,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:33,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:33,217 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:33,217 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:33,217 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:33,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:15:34,693 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:15:34,694 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:15:34,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:15:35,403 INFO L119 LiptonReduction]: Number of co-enabled transitions 3450096 [2023-01-28 00:16:07,633 INFO L134 LiptonReduction]: Checked pairs total: 7116348 [2023-01-28 00:16:07,634 INFO L136 LiptonReduction]: Total number of compositions: 1545 [2023-01-28 00:16:07,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:07,635 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:07,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:07,821 INFO L130 PetriNetUnfolder]: 155/780 cut-off events. [2023-01-28 00:16:07,821 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:16:07,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:07,821 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:16:07,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:07,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:07,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1713990933, now seen corresponding path program 1 times [2023-01-28 00:16:07,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:07,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537714130] [2023-01-28 00:16:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:07,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:07,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:07,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:07,932 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:07,932 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:07,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-28 00:16:07,932 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:07,933 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:07,933 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:07,933 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-28 00:16:08,168 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:08,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:10,061 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:10,062 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:10,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:10,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:10,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:10,216 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:10,216 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:10,216 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:10,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:12,188 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:12,188 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:12,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:12,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 3747900 [2023-01-28 00:16:46,987 INFO L134 LiptonReduction]: Checked pairs total: 7669208 [2023-01-28 00:16:46,987 INFO L136 LiptonReduction]: Total number of compositions: 1604 [2023-01-28 00:16:46,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:46,989 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:46,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:47,185 INFO L130 PetriNetUnfolder]: 162/816 cut-off events. [2023-01-28 00:16:47,185 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:47,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:47,185 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:16:47,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:47,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash 782955840, now seen corresponding path program 1 times [2023-01-28 00:16:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393692666] [2023-01-28 00:16:47,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:47,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:47,282 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:47,282 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:47,282 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:47,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-28 00:16:47,282 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:47,283 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:47,283 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:47,283 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-28 00:16:47,474 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:47,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:49,400 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:16:49,400 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:16:49,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:16:49,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:49,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:49,561 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:49,562 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:49,562 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:49,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:16:51,407 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:16:51,407 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:16:51,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:16:52,177 INFO L119 LiptonReduction]: Number of co-enabled transitions 4058028 [2023-01-28 00:17:29,101 INFO L134 LiptonReduction]: Checked pairs total: 9032144 [2023-01-28 00:17:29,102 INFO L136 LiptonReduction]: Total number of compositions: 1674 [2023-01-28 00:17:29,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:29,104 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:29,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:29,354 INFO L130 PetriNetUnfolder]: 170/850 cut-off events. [2023-01-28 00:17:29,355 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:17:29,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:29,355 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:29,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:29,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:29,355 INFO L85 PathProgramCache]: Analyzing trace with hash -376605358, now seen corresponding path program 1 times [2023-01-28 00:17:29,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:29,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723712032] [2023-01-28 00:17:29,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:29,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:29,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:29,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:29,507 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:29,507 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:29,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 00:17:29,507 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:29,508 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:29,508 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:29,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-28 00:17:29,756 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:29,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:31,713 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:17:31,714 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:17:31,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:17:31,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:31,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:31,885 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:31,885 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:31,885 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:31,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:17:33,752 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:17:33,752 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:17:33,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:17:34,733 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380480 [2023-01-28 00:18:12,117 INFO L134 LiptonReduction]: Checked pairs total: 9078722 [2023-01-28 00:18:12,117 INFO L136 LiptonReduction]: Total number of compositions: 1730 [2023-01-28 00:18:12,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:12,125 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:12,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:12,352 INFO L130 PetriNetUnfolder]: 176/878 cut-off events. [2023-01-28 00:18:12,352 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:18:12,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:12,353 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:12,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:12,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1268315341, now seen corresponding path program 1 times [2023-01-28 00:18:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563864679] [2023-01-28 00:18:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:12,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:12,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:12,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:12,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:12,461 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:12,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-01-28 00:18:12,462 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:12,462 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:12,462 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:12,462 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-01-28 00:18:12,696 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:12,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:14,986 INFO L130 PetriNetUnfolder]: 281/2581 cut-off events. [2023-01-28 00:18:14,987 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:18:15,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2581 events. 281/2581 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13541 event pairs, 0 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 2930. Up to 58 conditions per place. [2023-01-28 00:18:15,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:15,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:15,166 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:15,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:15,166 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:15,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2051 places, 2247 transitions, 5390 flow [2023-01-28 00:18:17,153 INFO L130 PetriNetUnfolder]: 281/2581 cut-off events. [2023-01-28 00:18:17,153 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:18:17,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3072 conditions, 2581 events. 281/2581 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13541 event pairs, 0 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 2930. Up to 58 conditions per place. [2023-01-28 00:18:18,138 INFO L119 LiptonReduction]: Number of co-enabled transitions 4715256 [2023-01-28 00:18:57,688 INFO L134 LiptonReduction]: Checked pairs total: 9716157 [2023-01-28 00:18:57,689 INFO L136 LiptonReduction]: Total number of compositions: 1797 [2023-01-28 00:18:57,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:57,691 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:57,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:58,030 INFO L130 PetriNetUnfolder]: 183/914 cut-off events. [2023-01-28 00:18:58,030 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:18:58,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:58,031 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:58,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:58,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:58,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1730777906, now seen corresponding path program 1 times [2023-01-28 00:18:58,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:58,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137240304] [2023-01-28 00:18:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:58,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:58,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:58,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:58,222 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:58,222 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:58,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-01-28 00:18:58,222 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:58,223 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:58,223 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:58,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-01-28 00:18:58,487 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:58,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:01,259 INFO L130 PetriNetUnfolder]: 291/2672 cut-off events. [2023-01-28 00:19:01,259 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:19:01,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3195 conditions, 2672 events. 291/2672 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 14050 event pairs, 0 based on Foata normal form. 0/2322 useless extension candidates. Maximal degree in co-relation 3052. Up to 60 conditions per place. [2023-01-28 00:19:01,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:01,455 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:01,455 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:01,455 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:01,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:01,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2123 places, 2326 transitions, 5609 flow [2023-01-28 00:19:03,792 INFO L130 PetriNetUnfolder]: 291/2672 cut-off events. [2023-01-28 00:19:03,793 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:19:03,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3195 conditions, 2672 events. 291/2672 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 14050 event pairs, 0 based on Foata normal form. 0/2322 useless extension candidates. Maximal degree in co-relation 3052. Up to 60 conditions per place. [2023-01-28 00:19:04,922 INFO L119 LiptonReduction]: Number of co-enabled transitions 5062356 [2023-01-28 00:19:45,379 INFO L134 LiptonReduction]: Checked pairs total: 10376847 [2023-01-28 00:19:45,379 INFO L136 LiptonReduction]: Total number of compositions: 1861 [2023-01-28 00:19:45,387 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:45,387 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:45,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:45,724 INFO L130 PetriNetUnfolder]: 190/950 cut-off events. [2023-01-28 00:19:45,724 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:19:45,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:45,724 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:19:45,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:45,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 355415552, now seen corresponding path program 1 times [2023-01-28 00:19:45,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:45,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709501954] [2023-01-28 00:19:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:45,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:45,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:45,853 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:45,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:45,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-01-28 00:19:45,854 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:45,854 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:45,854 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:45,854 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-01-28 00:19:46,213 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:46,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:48,811 INFO L130 PetriNetUnfolder]: 301/2763 cut-off events. [2023-01-28 00:19:48,811 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:19:48,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3319 conditions, 2763 events. 301/2763 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 14579 event pairs, 0 based on Foata normal form. 0/2401 useless extension candidates. Maximal degree in co-relation 3175. Up to 62 conditions per place. [2023-01-28 00:19:48,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:49,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:49,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:49,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:49,037 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:49,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2195 places, 2405 transitions, 5830 flow [2023-01-28 00:19:51,438 INFO L130 PetriNetUnfolder]: 301/2763 cut-off events. [2023-01-28 00:19:51,438 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:19:51,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3319 conditions, 2763 events. 301/2763 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 14579 event pairs, 0 based on Foata normal form. 0/2401 useless extension candidates. Maximal degree in co-relation 3175. Up to 62 conditions per place. [2023-01-28 00:19:52,609 INFO L119 LiptonReduction]: Number of co-enabled transitions 5421780 [2023-01-28 00:20:33,847 INFO L134 LiptonReduction]: Checked pairs total: 11084366 [2023-01-28 00:20:33,848 INFO L136 LiptonReduction]: Total number of compositions: 1924 [2023-01-28 00:20:33,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:33,851 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:33,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:34,130 INFO L130 PetriNetUnfolder]: 196/984 cut-off events. [2023-01-28 00:20:34,130 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:20:34,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:34,131 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:20:34,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:34,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1305650116, now seen corresponding path program 1 times [2023-01-28 00:20:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711120344] [2023-01-28 00:20:34,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:34,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:34,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:34,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:34,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:34,271 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:34,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:34,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-01-28 00:20:34,271 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:34,271 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:34,272 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:34,272 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-01-28 00:20:34,540 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:34,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:37,158 INFO L130 PetriNetUnfolder]: 311/2854 cut-off events. [2023-01-28 00:20:37,159 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:20:37,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3444 conditions, 2854 events. 311/2854 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 15102 event pairs, 0 based on Foata normal form. 0/2480 useless extension candidates. Maximal degree in co-relation 3299. Up to 64 conditions per place. [2023-01-28 00:20:37,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:37,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:37,498 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:37,498 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:37,498 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:37,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2267 places, 2484 transitions, 6053 flow [2023-01-28 00:20:39,938 INFO L130 PetriNetUnfolder]: 311/2854 cut-off events. [2023-01-28 00:20:39,938 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:20:40,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3444 conditions, 2854 events. 311/2854 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 15102 event pairs, 0 based on Foata normal form. 0/2480 useless extension candidates. Maximal degree in co-relation 3299. Up to 64 conditions per place. [2023-01-28 00:20:41,145 INFO L119 LiptonReduction]: Number of co-enabled transitions 5793528 [2023-01-28 00:21:23,657 INFO L134 LiptonReduction]: Checked pairs total: 11814643 [2023-01-28 00:21:23,657 INFO L136 LiptonReduction]: Total number of compositions: 1984 [2023-01-28 00:21:23,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:23,659 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:23,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:24,012 INFO L130 PetriNetUnfolder]: 205/1018 cut-off events. [2023-01-28 00:21:24,012 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:21:24,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:24,012 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:24,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:24,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:24,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1243510486, now seen corresponding path program 1 times [2023-01-28 00:21:24,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:24,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263408014] [2023-01-28 00:21:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:24,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:24,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:24,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:24,164 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:24,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:24,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-01-28 00:21:24,164 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:24,164 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:24,165 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:24,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-01-28 00:21:24,421 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:24,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:27,325 INFO L130 PetriNetUnfolder]: 321/2945 cut-off events. [2023-01-28 00:21:27,325 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:21:27,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 2945 events. 321/2945 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 15619 event pairs, 0 based on Foata normal form. 0/2559 useless extension candidates. Maximal degree in co-relation 3424. Up to 66 conditions per place. [2023-01-28 00:21:27,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:27,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:27,577 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:21:27,577 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:27,577 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:27,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2339 places, 2563 transitions, 6278 flow [2023-01-28 00:21:30,206 INFO L130 PetriNetUnfolder]: 321/2945 cut-off events. [2023-01-28 00:21:30,207 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:21:30,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3570 conditions, 2945 events. 321/2945 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 15619 event pairs, 0 based on Foata normal form. 0/2559 useless extension candidates. Maximal degree in co-relation 3424. Up to 66 conditions per place. [2023-01-28 00:21:31,611 INFO L119 LiptonReduction]: Number of co-enabled transitions 6177600 [2023-01-28 00:22:16,039 INFO L134 LiptonReduction]: Checked pairs total: 12665844 [2023-01-28 00:22:16,039 INFO L136 LiptonReduction]: Total number of compositions: 2042 [2023-01-28 00:22:16,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:22:16,042 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;@20f96349, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:22:16,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:22:16,389 INFO L130 PetriNetUnfolder]: 212/1052 cut-off events. [2023-01-28 00:22:16,389 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:22:16,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:22:16,390 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:22:16,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:22:16,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:22:16,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2014822281, now seen corresponding path program 1 times [2023-01-28 00:22:16,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:22:16,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515192733] [2023-01-28 00:22:16,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:22:16,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:22:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:16,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:22:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:16,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:22:16,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:22:16,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:22:16,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-01-28 00:22:16,605 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:22:16,605 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:22:16,606 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:22:16,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-01-28 00:22:16,889 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:22:16,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:19,847 INFO L130 PetriNetUnfolder]: 331/3036 cut-off events. [2023-01-28 00:22:19,847 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:22:20,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3697 conditions, 3036 events. 331/3036 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 16116 event pairs, 0 based on Foata normal form. 0/2638 useless extension candidates. Maximal degree in co-relation 3550. Up to 68 conditions per place. [2023-01-28 00:22:20,035 INFO L82 GeneralOperation]: Start removeDead. Operand has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:20,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:20,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:20,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:20,095 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:20,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2411 places, 2642 transitions, 6505 flow [2023-01-28 00:22:23,025 INFO L130 PetriNetUnfolder]: 331/3036 cut-off events. [2023-01-28 00:22:23,026 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:22:23,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3697 conditions, 3036 events. 331/3036 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 16116 event pairs, 0 based on Foata normal form. 0/2638 useless extension candidates. Maximal degree in co-relation 3550. Up to 68 conditions per place. [2023-01-28 00:22:24,488 INFO L119 LiptonReduction]: Number of co-enabled transitions 6573996 Received shutdown request... [2023-01-28 00:22:59,735 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 00:22:59,736 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-01-28 00:22:59,737 INFO L158 Benchmark]: Toolchain (without parser) took 825284.14ms. Allocated memory was 383.8MB in the beginning and 10.7GB in the end (delta: 10.3GB). Free memory was 341.2MB in the beginning and 8.3GB in the end (delta: -8.0GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2023-01-28 00:22:59,737 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:22:59,738 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.70ms. Allocated memory is still 383.8MB. Free memory was 341.2MB in the beginning and 320.9MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 00:22:59,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.24ms. Allocated memory is still 383.8MB. Free memory was 320.9MB in the beginning and 318.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 00:22:59,738 INFO L158 Benchmark]: Boogie Preprocessor took 21.08ms. Allocated memory is still 383.8MB. Free memory was 318.5MB in the beginning and 316.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:22:59,738 INFO L158 Benchmark]: RCFGBuilder took 797.83ms. Allocated memory is still 383.8MB. Free memory was 316.4MB in the beginning and 347.9MB in the end (delta: -31.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.0GB. [2023-01-28 00:22:59,739 INFO L158 Benchmark]: TraceAbstraction took 824075.40ms. Allocated memory was 383.8MB in the beginning and 10.7GB in the end (delta: 10.3GB). Free memory was 347.4MB in the beginning and 8.3GB in the end (delta: -8.0GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2023-01-28 00:22:59,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 353.70ms. Allocated memory is still 383.8MB. Free memory was 341.2MB in the beginning and 320.9MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.24ms. Allocated memory is still 383.8MB. Free memory was 320.9MB in the beginning and 318.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.08ms. Allocated memory is still 383.8MB. Free memory was 318.5MB in the beginning and 316.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 797.83ms. Allocated memory is still 383.8MB. Free memory was 316.4MB in the beginning and 347.9MB in the end (delta: -31.5MB). Peak memory consumption was 34.3MB. Max. memory is 16.0GB. * TraceAbstraction took 824075.40ms. Allocated memory was 383.8MB in the beginning and 10.7GB in the end (delta: 10.3GB). Free memory was 347.4MB in the beginning and 8.3GB in the end (delta: -8.0GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 107 PlacesBefore, 24 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1107, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 676, independent conditional: 0, independent unconditional: 676, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 179 PlacesBefore, 57 PlacesAfterwards, 193 TransitionsBefore, 66 TransitionsAfterwards, 16380 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 33585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17106, independent: 16608, independent conditional: 0, independent unconditional: 16608, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8710, independent: 8626, independent conditional: 0, independent unconditional: 8626, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17106, independent: 7982, independent conditional: 0, independent unconditional: 7982, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 8710, unknown conditional: 0, unknown unconditional: 8710] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.2s, 251 PlacesBefore, 82 PlacesAfterwards, 272 TransitionsBefore, 96 TransitionsAfterwards, 43056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 218 TotalNumberOfCompositions, 78907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40460, independent: 39863, independent conditional: 0, independent unconditional: 39863, dependent: 597, dependent conditional: 0, dependent unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22473, independent: 22323, independent conditional: 0, independent unconditional: 22323, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40460, independent: 17540, independent conditional: 0, independent unconditional: 17540, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 22473, unknown conditional: 0, unknown unconditional: 22473] , Statistics on independence cache: Total cache size (in pairs): 1432, Positive cache size: 1371, Positive conditional cache size: 0, Positive unconditional cache size: 1371, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 323 PlacesBefore, 109 PlacesAfterwards, 351 TransitionsBefore, 128 TransitionsAfterwards, 82056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 66 ConcurrentYvCompositions, 9 ChoiceCompositions, 282 TotalNumberOfCompositions, 163123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67650, independent: 66806, independent conditional: 0, independent unconditional: 66806, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41876, independent: 41693, independent conditional: 0, independent unconditional: 41693, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67650, independent: 25113, independent conditional: 0, independent unconditional: 25113, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 41876, unknown conditional: 0, unknown unconditional: 41876] , Statistics on independence cache: Total cache size (in pairs): 1501, Positive cache size: 1419, Positive conditional cache size: 0, Positive unconditional cache size: 1419, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 395 PlacesBefore, 132 PlacesAfterwards, 430 TransitionsBefore, 156 TransitionsAfterwards, 133380 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 235 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 75 ConcurrentYvCompositions, 11 ChoiceCompositions, 342 TotalNumberOfCompositions, 266074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119031, independent: 117969, independent conditional: 0, independent unconditional: 117969, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 68894, independent: 68657, independent conditional: 0, independent unconditional: 68657, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119031, independent: 49312, independent conditional: 0, independent unconditional: 49312, dependent: 825, dependent conditional: 0, dependent unconditional: 825, unknown: 68894, unknown conditional: 0, unknown unconditional: 68894] , Statistics on independence cache: Total cache size (in pairs): 3926, Positive cache size: 3813, Positive conditional cache size: 0, Positive unconditional cache size: 3813, Negative cache size: 113, Negative conditional cache size: 0, Negative unconditional cache size: 113, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7s, 467 PlacesBefore, 158 PlacesAfterwards, 509 TransitionsBefore, 187 TransitionsAfterwards, 197028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 13 ChoiceCompositions, 409 TotalNumberOfCompositions, 408501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170237, independent: 168939, independent conditional: 0, independent unconditional: 168939, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102255, independent: 101935, independent conditional: 0, independent unconditional: 101935, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170237, independent: 67004, independent conditional: 0, independent unconditional: 67004, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 102255, unknown conditional: 0, unknown unconditional: 102255] , Statistics on independence cache: Total cache size (in pairs): 5413, Positive cache size: 5283, Positive conditional cache size: 0, Positive unconditional cache size: 5283, 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: 8.5s, 539 PlacesBefore, 182 PlacesAfterwards, 588 TransitionsBefore, 216 TransitionsAfterwards, 273000 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 328 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 15 ChoiceCompositions, 471 TotalNumberOfCompositions, 601155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255944, independent: 254194, independent conditional: 0, independent unconditional: 254194, dependent: 1750, dependent conditional: 0, dependent unconditional: 1750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140512, independent: 140155, independent conditional: 0, independent unconditional: 140155, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255944, independent: 114039, independent conditional: 0, independent unconditional: 114039, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 140512, unknown conditional: 0, unknown unconditional: 140512] , Statistics on independence cache: Total cache size (in pairs): 7374, Positive cache size: 7226, Positive conditional cache size: 0, Positive unconditional cache size: 7226, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9s, 611 PlacesBefore, 209 PlacesAfterwards, 667 TransitionsBefore, 248 TransitionsAfterwards, 361296 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 17 ChoiceCompositions, 534 TotalNumberOfCompositions, 812240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371076, independent: 369044, independent conditional: 0, independent unconditional: 369044, dependent: 2032, dependent conditional: 0, dependent unconditional: 2032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 188435, independent: 188069, independent conditional: 0, independent unconditional: 188069, dependent: 366, dependent conditional: 0, dependent unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371076, independent: 180975, independent conditional: 0, independent unconditional: 180975, dependent: 1666, dependent conditional: 0, dependent unconditional: 1666, unknown: 188435, unknown conditional: 0, unknown unconditional: 188435] , Statistics on independence cache: Total cache size (in pairs): 10489, Positive cache size: 10309, Positive conditional cache size: 0, Positive unconditional cache size: 10309, Negative cache size: 180, Negative conditional cache size: 0, Negative unconditional cache size: 180, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 683 PlacesBefore, 234 PlacesAfterwards, 746 TransitionsBefore, 278 TransitionsAfterwards, 461916 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 413 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 19 ChoiceCompositions, 598 TotalNumberOfCompositions, 929047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328600, independent: 326715, independent conditional: 0, independent unconditional: 326715, dependent: 1885, dependent conditional: 0, dependent unconditional: 1885, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229820, independent: 229385, independent conditional: 0, independent unconditional: 229385, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328600, independent: 97330, independent conditional: 0, independent unconditional: 97330, dependent: 1450, dependent conditional: 0, dependent unconditional: 1450, unknown: 229820, unknown conditional: 0, unknown unconditional: 229820] , Statistics on independence cache: Total cache size (in pairs): 5890, Positive cache size: 5653, Positive conditional cache size: 0, Positive unconditional cache size: 5653, Negative cache size: 237, Negative conditional cache size: 0, Negative unconditional cache size: 237, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6s, 755 PlacesBefore, 259 PlacesAfterwards, 825 TransitionsBefore, 308 TransitionsAfterwards, 574860 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 21 ChoiceCompositions, 663 TotalNumberOfCompositions, 1167442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 408681, independent: 406564, independent conditional: 0, independent unconditional: 406564, dependent: 2117, dependent conditional: 0, dependent unconditional: 2117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286548, independent: 286087, independent conditional: 0, independent unconditional: 286087, dependent: 461, dependent conditional: 0, dependent unconditional: 461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 408681, independent: 120477, independent conditional: 0, independent unconditional: 120477, dependent: 1656, dependent conditional: 0, dependent unconditional: 1656, unknown: 286548, unknown conditional: 0, unknown unconditional: 286548] , Statistics on independence cache: Total cache size (in pairs): 6246, Positive cache size: 6040, Positive conditional cache size: 0, Positive unconditional cache size: 6040, Negative cache size: 206, Negative conditional cache size: 0, Negative unconditional cache size: 206, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks [2023-01-28 00:22:59,761 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 Lipton Reduction Statistics: ReductionTime: 12.4s, 827 PlacesBefore, 282 PlacesAfterwards, 904 TransitionsBefore, 336 TransitionsAfterwards, 700128 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 23 ChoiceCompositions, 726 TotalNumberOfCompositions, 1457710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496854, independent: 494488, independent conditional: 0, independent unconditional: 494488, dependent: 2366, dependent conditional: 0, dependent unconditional: 2366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345217, independent: 344662, independent conditional: 0, independent unconditional: 344662, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 496854, independent: 149826, independent conditional: 0, independent unconditional: 149826, dependent: 1811, dependent conditional: 0, dependent unconditional: 1811, unknown: 345217, unknown conditional: 0, unknown unconditional: 345217] , Statistics on independence cache: Total cache size (in pairs): 4736, Positive cache size: 4459, Positive conditional cache size: 0, Positive unconditional cache size: 4459, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2s, 899 PlacesBefore, 309 PlacesAfterwards, 983 TransitionsBefore, 368 TransitionsAfterwards, 837720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 25 ChoiceCompositions, 788 TotalNumberOfCompositions, 1744929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 608992, independent: 606412, independent conditional: 0, independent unconditional: 606412, dependent: 2580, dependent conditional: 0, dependent unconditional: 2580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422154, independent: 421613, independent conditional: 0, independent unconditional: 421613, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 608992, independent: 184799, independent conditional: 0, independent unconditional: 184799, dependent: 2039, dependent conditional: 0, dependent unconditional: 2039, unknown: 422154, unknown conditional: 0, unknown unconditional: 422154] , Statistics on independence cache: Total cache size (in pairs): 9936, Positive cache size: 9688, Positive conditional cache size: 0, Positive unconditional cache size: 9688, Negative cache size: 248, Negative conditional cache size: 0, Negative unconditional cache size: 248, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4s, 971 PlacesBefore, 336 PlacesAfterwards, 1062 TransitionsBefore, 400 TransitionsAfterwards, 987636 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 602 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 848 TotalNumberOfCompositions, 2255991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043298, independent: 1039985, independent conditional: 0, independent unconditional: 1039985, dependent: 3313, dependent conditional: 0, dependent unconditional: 3313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516508, independent: 515973, independent conditional: 0, independent unconditional: 515973, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1043298, independent: 524012, independent conditional: 0, independent unconditional: 524012, dependent: 2778, dependent conditional: 0, dependent unconditional: 2778, unknown: 516508, unknown conditional: 0, unknown unconditional: 516508] , Statistics on independence cache: Total cache size (in pairs): 31596, Positive cache size: 31324, Positive conditional cache size: 0, Positive unconditional cache size: 31324, Negative cache size: 272, Negative conditional cache size: 0, Negative unconditional cache size: 272, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.7s, 1043 PlacesBefore, 362 PlacesAfterwards, 1141 TransitionsBefore, 431 TransitionsAfterwards, 1149876 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 648 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 914 TotalNumberOfCompositions, 2617201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006326, independent: 1002790, independent conditional: 0, independent unconditional: 1002790, dependent: 3536, dependent conditional: 0, dependent unconditional: 3536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586609, independent: 585980, independent conditional: 0, independent unconditional: 585980, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1006326, independent: 416810, independent conditional: 0, independent unconditional: 416810, dependent: 2907, dependent conditional: 0, dependent unconditional: 2907, unknown: 586609, unknown conditional: 0, unknown unconditional: 586609] , Statistics on independence cache: Total cache size (in pairs): 23886, Positive cache size: 23580, Positive conditional cache size: 0, Positive unconditional cache size: 23580, Negative cache size: 306, Negative conditional cache size: 0, Negative unconditional cache size: 306, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.4s, 1115 PlacesBefore, 384 PlacesAfterwards, 1220 TransitionsBefore, 458 TransitionsAfterwards, 1324440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 231 ConcurrentYvCompositions, 31 ChoiceCompositions, 974 TotalNumberOfCompositions, 2975786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 936499, independent: 932727, independent conditional: 0, independent unconditional: 932727, dependent: 3772, dependent conditional: 0, dependent unconditional: 3772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 654467, independent: 653636, independent conditional: 0, independent unconditional: 653636, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 936499, independent: 279091, independent conditional: 0, independent unconditional: 279091, dependent: 2941, dependent conditional: 0, dependent unconditional: 2941, unknown: 654467, unknown conditional: 0, unknown unconditional: 654467] , Statistics on independence cache: Total cache size (in pairs): 8504, Positive cache size: 8115, Positive conditional cache size: 0, Positive unconditional cache size: 8115, Negative cache size: 389, Negative conditional cache size: 0, Negative unconditional cache size: 389, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4s, 1187 PlacesBefore, 411 PlacesAfterwards, 1299 TransitionsBefore, 490 TransitionsAfterwards, 1511328 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1043 TotalNumberOfCompositions, 3418394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081493, independent: 1077484, independent conditional: 0, independent unconditional: 1077484, dependent: 4009, dependent conditional: 0, dependent unconditional: 4009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 754071, independent: 753358, independent conditional: 0, independent unconditional: 753358, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081493, independent: 324126, independent conditional: 0, independent unconditional: 324126, dependent: 3296, dependent conditional: 0, dependent unconditional: 3296, unknown: 754071, unknown conditional: 0, unknown unconditional: 754071] , Statistics on independence cache: Total cache size (in pairs): 12595, Positive cache size: 12261, Positive conditional cache size: 0, Positive unconditional cache size: 12261, Negative cache size: 334, Negative conditional cache size: 0, Negative unconditional cache size: 334, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.2s, 1259 PlacesBefore, 435 PlacesAfterwards, 1378 TransitionsBefore, 519 TransitionsAfterwards, 1710540 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1094 TotalNumberOfCompositions, 3860000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1209719, independent: 1205420, independent conditional: 0, independent unconditional: 1205420, dependent: 4299, dependent conditional: 0, dependent unconditional: 4299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 842621, independent: 841510, independent conditional: 0, independent unconditional: 841510, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1209719, independent: 363910, independent conditional: 0, independent unconditional: 363910, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 842621, unknown conditional: 0, unknown unconditional: 842621] , Statistics on independence cache: Total cache size (in pairs): 13044, Positive cache size: 12394, Positive conditional cache size: 0, Positive unconditional cache size: 12394, Negative cache size: 650, Negative conditional cache size: 0, Negative unconditional cache size: 650, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8s, 1331 PlacesBefore, 460 PlacesAfterwards, 1457 TransitionsBefore, 549 TransitionsAfterwards, 1922076 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 37 ChoiceCompositions, 1165 TotalNumberOfCompositions, 4368552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371150, independent: 1366584, independent conditional: 0, independent unconditional: 1366584, dependent: 4566, dependent conditional: 0, dependent unconditional: 4566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 954516, independent: 953668, independent conditional: 0, independent unconditional: 953668, dependent: 848, dependent conditional: 0, dependent unconditional: 848, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1371150, independent: 412916, independent conditional: 0, independent unconditional: 412916, dependent: 3718, dependent conditional: 0, dependent unconditional: 3718, unknown: 954516, unknown conditional: 0, unknown unconditional: 954516] , Statistics on independence cache: Total cache size (in pairs): 15525, Positive cache size: 15150, Positive conditional cache size: 0, Positive unconditional cache size: 15150, Negative cache size: 375, Negative conditional cache size: 0, Negative unconditional cache size: 375, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.3s, 1403 PlacesBefore, 486 PlacesAfterwards, 1536 TransitionsBefore, 580 TransitionsAfterwards, 2145936 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 301 ConcurrentYvCompositions, 39 ChoiceCompositions, 1227 TotalNumberOfCompositions, 4909396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1533663, independent: 1528833, independent conditional: 0, independent unconditional: 1528833, dependent: 4830, dependent conditional: 0, dependent unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1066939, independent: 1066086, independent conditional: 0, independent unconditional: 1066086, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1533663, independent: 462747, independent conditional: 0, independent unconditional: 462747, dependent: 3977, dependent conditional: 0, dependent unconditional: 3977, unknown: 1066939, unknown conditional: 0, unknown unconditional: 1066939] , Statistics on independence cache: Total cache size (in pairs): 18759, Positive cache size: 18362, Positive conditional cache size: 0, Positive unconditional cache size: 18362, 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: 26.6s, 1475 PlacesBefore, 512 PlacesAfterwards, 1615 TransitionsBefore, 611 TransitionsAfterwards, 2382120 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 923 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 307 ConcurrentYvCompositions, 41 ChoiceCompositions, 1292 TotalNumberOfCompositions, 5438150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979618, independent: 1974553, independent conditional: 0, independent unconditional: 1974553, dependent: 5065, dependent conditional: 0, dependent unconditional: 5065, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1211333, independent: 1210201, independent conditional: 0, independent unconditional: 1210201, dependent: 1132, dependent conditional: 0, dependent unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979618, independent: 764352, independent conditional: 0, independent unconditional: 764352, dependent: 3933, dependent conditional: 0, dependent unconditional: 3933, unknown: 1211333, unknown conditional: 0, unknown unconditional: 1211333] , Statistics on independence cache: Total cache size (in pairs): 46643, Positive cache size: 46102, Positive conditional cache size: 0, Positive unconditional cache size: 46102, Negative cache size: 541, Negative conditional cache size: 0, Negative unconditional cache size: 541, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2s, 1547 PlacesBefore, 539 PlacesAfterwards, 1694 TransitionsBefore, 643 TransitionsAfterwards, 2630628 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 963 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 43 ChoiceCompositions, 1352 TotalNumberOfCompositions, 6023620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1869483, independent: 1864134, independent conditional: 0, independent unconditional: 1864134, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301424, independent: 1300446, independent conditional: 0, independent unconditional: 1300446, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1869483, independent: 563688, independent conditional: 0, independent unconditional: 563688, dependent: 4371, dependent conditional: 0, dependent unconditional: 4371, unknown: 1301424, unknown conditional: 0, unknown unconditional: 1301424] , Statistics on independence cache: Total cache size (in pairs): 22128, Positive cache size: 21686, Positive conditional cache size: 0, Positive unconditional cache size: 21686, Negative cache size: 442, Negative conditional cache size: 0, Negative unconditional cache size: 442, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3s, 1619 PlacesBefore, 562 PlacesAfterwards, 1773 TransitionsBefore, 671 TransitionsAfterwards, 2891460 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1007 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 345 ConcurrentYvCompositions, 45 ChoiceCompositions, 1418 TotalNumberOfCompositions, 5961511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1977376, independent: 1972699, independent conditional: 0, independent unconditional: 1972699, dependent: 4677, dependent conditional: 0, dependent unconditional: 4677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437402, independent: 1436305, independent conditional: 0, independent unconditional: 1436305, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1977376, independent: 536394, independent conditional: 0, independent unconditional: 536394, dependent: 3580, dependent conditional: 0, dependent unconditional: 3580, unknown: 1437402, unknown conditional: 0, unknown unconditional: 1437402] , Statistics on independence cache: Total cache size (in pairs): 20544, Positive cache size: 20084, Positive conditional cache size: 0, Positive unconditional cache size: 20084, Negative cache size: 460, Negative conditional cache size: 0, Negative unconditional cache size: 460, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.4s, 1691 PlacesBefore, 585 PlacesAfterwards, 1852 TransitionsBefore, 699 TransitionsAfterwards, 3164616 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1056 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 354 ConcurrentYvCompositions, 47 ChoiceCompositions, 1478 TotalNumberOfCompositions, 6441936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2178584, independent: 2173741, independent conditional: 0, independent unconditional: 2173741, dependent: 4843, dependent conditional: 0, dependent unconditional: 4843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1574360, independent: 1573395, independent conditional: 0, independent unconditional: 1573395, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2178584, independent: 600346, independent conditional: 0, independent unconditional: 600346, dependent: 3878, dependent conditional: 0, dependent unconditional: 3878, unknown: 1574360, unknown conditional: 0, unknown unconditional: 1574360] , Statistics on independence cache: Total cache size (in pairs): 31974, Positive cache size: 31494, Positive conditional cache size: 0, Positive unconditional cache size: 31494, 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: 34.4s, 1763 PlacesBefore, 610 PlacesAfterwards, 1931 TransitionsBefore, 729 TransitionsAfterwards, 3450096 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1112 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 49 ChoiceCompositions, 1545 TotalNumberOfCompositions, 7116348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3255295, independent: 3250185, independent conditional: 0, independent unconditional: 3250185, dependent: 5110, dependent conditional: 0, dependent unconditional: 5110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1793678, independent: 1792473, independent conditional: 0, independent unconditional: 1792473, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3255295, independent: 1457712, independent conditional: 0, independent unconditional: 1457712, dependent: 3905, dependent conditional: 0, dependent unconditional: 3905, unknown: 1793678, unknown conditional: 0, unknown unconditional: 1793678] , Statistics on independence cache: Total cache size (in pairs): 102175, Positive cache size: 101651, Positive conditional cache size: 0, Positive unconditional cache size: 101651, Negative cache size: 524, Negative conditional cache size: 0, Negative unconditional cache size: 524, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.8s, 1835 PlacesBefore, 637 PlacesAfterwards, 2010 TransitionsBefore, 761 TransitionsAfterwards, 3747900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 388 ConcurrentYvCompositions, 51 ChoiceCompositions, 1604 TotalNumberOfCompositions, 7669208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3292501, independent: 3287238, independent conditional: 0, independent unconditional: 3287238, dependent: 5263, dependent conditional: 0, dependent unconditional: 5263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1944403, independent: 1943259, independent conditional: 0, independent unconditional: 1943259, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3292501, independent: 1343979, independent conditional: 0, independent unconditional: 1343979, dependent: 4119, dependent conditional: 0, dependent unconditional: 4119, unknown: 1944403, unknown conditional: 0, unknown unconditional: 1944403] , Statistics on independence cache: Total cache size (in pairs): 98452, Positive cache size: 97903, Positive conditional cache size: 0, Positive unconditional cache size: 97903, Negative cache size: 549, Negative conditional cache size: 0, Negative unconditional cache size: 549, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.5s, 1907 PlacesBefore, 661 PlacesAfterwards, 2089 TransitionsBefore, 790 TransitionsAfterwards, 4058028 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 1190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 410 ConcurrentYvCompositions, 53 ChoiceCompositions, 1674 TotalNumberOfCompositions, 9032144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3639342, independent: 3632892, independent conditional: 0, independent unconditional: 3632892, dependent: 6450, dependent conditional: 0, dependent unconditional: 6450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2097690, independent: 2096081, independent conditional: 0, independent unconditional: 2096081, dependent: 1609, dependent conditional: 0, dependent unconditional: 1609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3639342, independent: 1536811, independent conditional: 0, independent unconditional: 1536811, dependent: 4841, dependent conditional: 0, dependent unconditional: 4841, unknown: 2097690, unknown conditional: 0, unknown unconditional: 2097690] , Statistics on independence cache: Total cache size (in pairs): 103634, Positive cache size: 102988, Positive conditional cache size: 0, Positive unconditional cache size: 102988, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.2s, 1979 PlacesBefore, 684 PlacesAfterwards, 2168 TransitionsBefore, 818 TransitionsAfterwards, 4380480 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1243 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 411 ConcurrentYvCompositions, 55 ChoiceCompositions, 1730 TotalNumberOfCompositions, 9078722 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3607464, independent: 3601675, independent conditional: 0, independent unconditional: 3601675, dependent: 5789, dependent conditional: 0, dependent unconditional: 5789, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2243733, independent: 2242244, independent conditional: 0, independent unconditional: 2242244, dependent: 1489, dependent conditional: 0, dependent unconditional: 1489, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3607464, independent: 1359431, independent conditional: 0, independent unconditional: 1359431, dependent: 4300, dependent conditional: 0, dependent unconditional: 4300, unknown: 2243733, unknown conditional: 0, unknown unconditional: 2243733] , Statistics on independence cache: Total cache size (in pairs): 103073, Positive cache size: 102405, Positive conditional cache size: 0, Positive unconditional cache size: 102405, Negative cache size: 668, Negative conditional cache size: 0, Negative unconditional cache size: 668, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.5s, 2051 PlacesBefore, 710 PlacesAfterwards, 2247 TransitionsBefore, 849 TransitionsAfterwards, 4715256 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1279 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 440 ConcurrentYvCompositions, 57 ChoiceCompositions, 1797 TotalNumberOfCompositions, 9716157 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3869903, independent: 3863951, independent conditional: 0, independent unconditional: 3863951, dependent: 5952, dependent conditional: 0, dependent unconditional: 5952, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2415727, independent: 2413846, independent conditional: 0, independent unconditional: 2413846, dependent: 1881, dependent conditional: 0, dependent unconditional: 1881, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3869903, independent: 1450105, independent conditional: 0, independent unconditional: 1450105, dependent: 4071, dependent conditional: 0, dependent unconditional: 4071, unknown: 2415727, unknown conditional: 0, unknown unconditional: 2415727] , Statistics on independence cache: Total cache size (in pairs): 107874, Positive cache size: 107175, Positive conditional cache size: 0, Positive unconditional cache size: 107175, Negative cache size: 699, Negative conditional cache size: 0, Negative unconditional cache size: 699, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.9s, 2123 PlacesBefore, 738 PlacesAfterwards, 2326 TransitionsBefore, 882 TransitionsAfterwards, 5062356 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1324 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 457 ConcurrentYvCompositions, 59 ChoiceCompositions, 1861 TotalNumberOfCompositions, 10376847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4330723, independent: 4324605, independent conditional: 0, independent unconditional: 4324605, dependent: 6118, dependent conditional: 0, dependent unconditional: 6118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2612583, independent: 2611139, independent conditional: 0, independent unconditional: 2611139, dependent: 1444, dependent conditional: 0, dependent unconditional: 1444, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4330723, independent: 1713466, independent conditional: 0, independent unconditional: 1713466, dependent: 4674, dependent conditional: 0, dependent unconditional: 4674, unknown: 2612583, unknown conditional: 0, unknown unconditional: 2612583] , Statistics on independence cache: Total cache size (in pairs): 129307, Positive cache size: 128581, Positive conditional cache size: 0, Positive unconditional cache size: 128581, Negative cache size: 726, Negative conditional cache size: 0, Negative unconditional cache size: 726, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 44.8s, 2195 PlacesBefore, 764 PlacesAfterwards, 2405 TransitionsBefore, 913 TransitionsAfterwards, 5421780 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 471 ConcurrentYvCompositions, 61 ChoiceCompositions, 1924 TotalNumberOfCompositions, 11084366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3729450, independent: 3723161, independent conditional: 0, independent unconditional: 3723161, dependent: 6289, dependent conditional: 0, dependent unconditional: 6289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2700082, independent: 2698706, independent conditional: 0, independent unconditional: 2698706, dependent: 1376, dependent conditional: 0, dependent unconditional: 1376, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3729450, independent: 1024455, independent conditional: 0, independent unconditional: 1024455, dependent: 4913, dependent conditional: 0, dependent unconditional: 4913, unknown: 2700082, unknown conditional: 0, unknown unconditional: 2700082] , Statistics on independence cache: Total cache size (in pairs): 41145, Positive cache size: 40514, Positive conditional cache size: 0, Positive unconditional cache size: 40514, Negative cache size: 631, Negative conditional cache size: 0, Negative unconditional cache size: 631, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.2s, 2267 PlacesBefore, 785 PlacesAfterwards, 2484 TransitionsBefore, 939 TransitionsAfterwards, 5793528 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1426 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 474 ConcurrentYvCompositions, 63 ChoiceCompositions, 1984 TotalNumberOfCompositions, 11814643 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5281686, independent: 5275158, independent conditional: 0, independent unconditional: 5275158, dependent: 6528, dependent conditional: 0, dependent unconditional: 6528, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3004617, independent: 3003098, independent conditional: 0, independent unconditional: 3003098, dependent: 1519, dependent conditional: 0, dependent unconditional: 1519, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5281686, independent: 2272060, independent conditional: 0, independent unconditional: 2272060, dependent: 5009, dependent conditional: 0, dependent unconditional: 5009, unknown: 3004617, unknown conditional: 0, unknown unconditional: 3004617] , Statistics on independence cache: Total cache size (in pairs): 163178, Positive cache size: 162529, Positive conditional cache size: 0, Positive unconditional cache size: 162529, Negative cache size: 649, Negative conditional cache size: 0, Negative unconditional cache size: 649, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.5s, 2339 PlacesBefore, 810 PlacesAfterwards, 2563 TransitionsBefore, 969 TransitionsAfterwards, 6177600 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1477 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 479 ConcurrentYvCompositions, 65 ChoiceCompositions, 2042 TotalNumberOfCompositions, 12665844 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4166306, independent: 4159501, independent conditional: 0, independent unconditional: 4159501, dependent: 6805, dependent conditional: 0, dependent unconditional: 6805, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3034557, independent: 3032925, independent conditional: 0, independent unconditional: 3032925, dependent: 1632, dependent conditional: 0, dependent unconditional: 1632, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4166306, independent: 1126576, independent conditional: 0, independent unconditional: 1126576, dependent: 5173, dependent conditional: 0, dependent unconditional: 5173, unknown: 3034557, unknown conditional: 0, unknown unconditional: 3034557] , Statistics on independence cache: Total cache size (in pairs): 27515, Positive cache size: 26651, Positive conditional cache size: 0, Positive unconditional cache size: 26651, Negative cache size: 864, Negative conditional cache size: 0, Negative unconditional cache size: 864, 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 2411 places, 2642 transitions, 6505 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 2411 places, 2642 transitions, 6505 flow and 1619908 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 17 for 0ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown