/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/09_fmaxsym.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 23:55:38,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 23:55:38,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 23:55:38,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 23:55:38,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 23:55:38,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 23:55:38,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 23:55:38,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 23:55:38,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 23:55:38,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 23:55:38,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 23:55:38,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 23:55:38,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 23:55:38,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 23:55:38,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 23:55:38,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 23:55:38,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 23:55:38,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 23:55:38,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 23:55:38,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 23:55:38,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 23:55:38,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 23:55:38,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 23:55:38,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 23:55:38,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 23:55:38,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 23:55:38,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 23:55:38,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 23:55:38,164 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 [2023-01-27 23:55:38,185 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 23:55:38,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 23:55:38,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 23:55:38,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 23:55:38,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 23:55:38,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 23:55:38,186 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 23:55:38,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 23:55:38,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 23:55:38,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 23:55:38,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 23:55:38,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 23:55:38,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 23:55:38,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 23:55:38,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 23:55:38,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 23:55:38,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 23:55:38,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-27 23:55:38,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 23:55:38,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 23:55:38,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 23:55:38,401 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 23:55:38,401 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 23:55:38,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2023-01-27 23:55:39,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 23:55:39,447 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 23:55:39,447 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/09_fmaxsym.i [2023-01-27 23:55:39,456 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbf911f7/083b065c38074fb2824473a2e5507ba1/FLAGebbbb59bb [2023-01-27 23:55:39,466 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbbf911f7/083b065c38074fb2824473a2e5507ba1 [2023-01-27 23:55:39,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 23:55:39,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 23:55:39,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 23:55:39,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 23:55:39,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 23:55:39,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7416ac98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39, skipping insertion in model container [2023-01-27 23:55:39,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 23:55:39,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 23:55:39,668 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/09_fmaxsym.i[30422,30435] [2023-01-27 23:55:39,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 23:55:39,685 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 23:55:39,727 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/09_fmaxsym.i[30422,30435] [2023-01-27 23:55:39,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 23:55:39,756 INFO L208 MainTranslator]: Completed translation [2023-01-27 23:55:39,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39 WrapperNode [2023-01-27 23:55:39,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 23:55:39,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 23:55:39,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 23:55:39,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 23:55:39,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,797 INFO L138 Inliner]: procedures = 171, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2023-01-27 23:55:39,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 23:55:39,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 23:55:39,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 23:55:39,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 23:55:39,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,813 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 23:55:39,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 23:55:39,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 23:55:39,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 23:55:39,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (1/1) ... [2023-01-27 23:55:39,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 23:55:39,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 23:55:39,836 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) [2023-01-27 23:55:39,837 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 [2023-01-27 23:55:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 23:55:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-27 23:55:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-27 23:55:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 23:55:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 23:55:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 23:55:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 23:55:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 23:55:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 23:55:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 23:55:39,868 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 23:55:39,973 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 23:55:39,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 23:55:40,101 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 23:55:40,119 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 23:55:40,119 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-27 23:55:40,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:55:40 BoogieIcfgContainer [2023-01-27 23:55:40,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 23:55:40,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 23:55:40,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 23:55:40,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 23:55:40,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:55:39" (1/3) ... [2023-01-27 23:55:40,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612f92bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:55:40, skipping insertion in model container [2023-01-27 23:55:40,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:55:39" (2/3) ... [2023-01-27 23:55:40,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612f92bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:55:40, skipping insertion in model container [2023-01-27 23:55:40,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:55:40" (3/3) ... [2023-01-27 23:55:40,125 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym.i [2023-01-27 23:55:40,136 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 23:55:40,136 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 23:55:40,136 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 23:55:40,168 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:40,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,250 INFO L130 PetriNetUnfolder]: 7/82 cut-off events. [2023-01-27 23:55:40,250 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 23:55:40,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 7/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-01-27 23:55:40,254 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,266 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:40,277 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,279 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 72 transitions, 149 flow [2023-01-27 23:55:40,304 INFO L130 PetriNetUnfolder]: 7/82 cut-off events. [2023-01-27 23:55:40,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 23:55:40,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 7/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 50. Up to 4 conditions per place. [2023-01-27 23:55:40,305 INFO L119 LiptonReduction]: Number of co-enabled transitions 988 [2023-01-27 23:55:42,197 INFO L134 LiptonReduction]: Checked pairs total: 1018 [2023-01-27 23:55:42,198 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-01-27 23:55:42,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:42,219 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:42,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:42,223 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-01-27 23:55:42,223 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 23:55:42,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:42,223 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-27 23:55:42,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:42,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:42,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1926557800, now seen corresponding path program 1 times [2023-01-27 23:55:42,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:42,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461107329] [2023-01-27 23:55:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:42,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:42,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:42,382 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:42,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:42,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 23:55:42,384 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:42,389 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:42,390 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:42,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-27 23:55:42,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:42,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,456 INFO L130 PetriNetUnfolder]: 13/133 cut-off events. [2023-01-27 23:55:42,456 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 23:55:42,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 13/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 221 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 88. Up to 6 conditions per place. [2023-01-27 23:55:42,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,461 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,461 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:42,461 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,461 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 111 transitions, 234 flow [2023-01-27 23:55:42,478 INFO L130 PetriNetUnfolder]: 13/133 cut-off events. [2023-01-27 23:55:42,478 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 23:55:42,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 13/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 221 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 88. Up to 6 conditions per place. [2023-01-27 23:55:42,483 INFO L119 LiptonReduction]: Number of co-enabled transitions 4940 [2023-01-27 23:55:43,776 INFO L134 LiptonReduction]: Checked pairs total: 8290 [2023-01-27 23:55:43,776 INFO L136 LiptonReduction]: Total number of compositions: 101 [2023-01-27 23:55:43,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:43,778 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:43,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:43,780 INFO L130 PetriNetUnfolder]: 2/27 cut-off events. [2023-01-27 23:55:43,780 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 23:55:43,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:43,780 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-27 23:55:43,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:43,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:43,781 INFO L85 PathProgramCache]: Analyzing trace with hash 199702052, now seen corresponding path program 1 times [2023-01-27 23:55:43,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:43,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613984819] [2023-01-27 23:55:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:43,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:43,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:43,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:43,829 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:43,829 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:43,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 23:55:43,829 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:43,830 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:43,830 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:43,830 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-27 23:55:43,850 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:43,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,865 INFO L130 PetriNetUnfolder]: 19/184 cut-off events. [2023-01-27 23:55:43,866 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-27 23:55:43,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 184 events. 19/184 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 421 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 137. Up to 8 conditions per place. [2023-01-27 23:55:43,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,868 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:43,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,868 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 150 transitions, 321 flow [2023-01-27 23:55:43,879 INFO L130 PetriNetUnfolder]: 19/184 cut-off events. [2023-01-27 23:55:43,880 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-27 23:55:43,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 184 events. 19/184 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 421 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 137. Up to 8 conditions per place. [2023-01-27 23:55:43,884 INFO L119 LiptonReduction]: Number of co-enabled transitions 11856 [2023-01-27 23:55:45,941 INFO L134 LiptonReduction]: Checked pairs total: 20053 [2023-01-27 23:55:45,941 INFO L136 LiptonReduction]: Total number of compositions: 135 [2023-01-27 23:55:45,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:45,943 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:45,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:45,946 INFO L130 PetriNetUnfolder]: 4/42 cut-off events. [2023-01-27 23:55:45,946 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-27 23:55:45,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:45,946 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-27 23:55:45,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:45,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1228727841, now seen corresponding path program 1 times [2023-01-27 23:55:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:45,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928894598] [2023-01-27 23:55:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:45,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:45,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:45,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:45,974 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:45,975 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:45,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 23:55:45,975 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:45,975 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:45,975 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:45,975 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-27 23:55:45,992 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:45,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,010 INFO L130 PetriNetUnfolder]: 25/235 cut-off events. [2023-01-27 23:55:46,010 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-27 23:55:46,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 235 events. 25/235 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 642 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 192. Up to 10 conditions per place. [2023-01-27 23:55:46,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,013 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:46,013 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,013 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 189 transitions, 410 flow [2023-01-27 23:55:46,029 INFO L130 PetriNetUnfolder]: 25/235 cut-off events. [2023-01-27 23:55:46,029 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-27 23:55:46,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 235 events. 25/235 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 642 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 192. Up to 10 conditions per place. [2023-01-27 23:55:46,038 INFO L119 LiptonReduction]: Number of co-enabled transitions 21736 [2023-01-27 23:55:48,227 INFO L134 LiptonReduction]: Checked pairs total: 38018 [2023-01-27 23:55:48,227 INFO L136 LiptonReduction]: Total number of compositions: 173 [2023-01-27 23:55:48,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:48,229 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:48,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:48,241 INFO L130 PetriNetUnfolder]: 6/57 cut-off events. [2023-01-27 23:55:48,241 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-27 23:55:48,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:48,242 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-27 23:55:48,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:48,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash 8712155, now seen corresponding path program 1 times [2023-01-27 23:55:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129183671] [2023-01-27 23:55:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:48,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:48,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:48,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:48,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:48,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 23:55:48,276 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:48,277 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:48,277 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:48,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-27 23:55:48,294 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:48,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,316 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-01-27 23:55:48,316 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-27 23:55:48,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 286 events. 31/286 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 820 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 248. Up to 12 conditions per place. [2023-01-27 23:55:48,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,320 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:48,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,320 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 228 transitions, 501 flow [2023-01-27 23:55:48,341 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-01-27 23:55:48,341 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-27 23:55:48,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 286 events. 31/286 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 820 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 248. Up to 12 conditions per place. [2023-01-27 23:55:48,349 INFO L119 LiptonReduction]: Number of co-enabled transitions 34580 [2023-01-27 23:55:50,672 INFO L134 LiptonReduction]: Checked pairs total: 63328 [2023-01-27 23:55:50,672 INFO L136 LiptonReduction]: Total number of compositions: 217 [2023-01-27 23:55:50,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:50,674 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:50,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:50,678 INFO L130 PetriNetUnfolder]: 9/75 cut-off events. [2023-01-27 23:55:50,678 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-27 23:55:50,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:50,678 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:55:50,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:50,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1525128440, now seen corresponding path program 1 times [2023-01-27 23:55:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:50,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376237731] [2023-01-27 23:55:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:50,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:50,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:50,735 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:50,735 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:50,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 23:55:50,735 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:50,735 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:50,736 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:50,736 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-27 23:55:50,765 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:50,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,803 INFO L130 PetriNetUnfolder]: 37/337 cut-off events. [2023-01-27 23:55:50,803 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-27 23:55:50,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 337 events. 37/337 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1022 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 305. Up to 14 conditions per place. [2023-01-27 23:55:50,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,807 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:50,807 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,808 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 267 transitions, 594 flow [2023-01-27 23:55:50,843 INFO L130 PetriNetUnfolder]: 37/337 cut-off events. [2023-01-27 23:55:50,843 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-27 23:55:50,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 337 events. 37/337 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1022 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 305. Up to 14 conditions per place. [2023-01-27 23:55:50,872 INFO L119 LiptonReduction]: Number of co-enabled transitions 50388 [2023-01-27 23:55:53,693 INFO L134 LiptonReduction]: Checked pairs total: 93497 [2023-01-27 23:55:53,694 INFO L136 LiptonReduction]: Total number of compositions: 254 [2023-01-27 23:55:53,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:53,695 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:53,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:53,701 INFO L130 PetriNetUnfolder]: 11/90 cut-off events. [2023-01-27 23:55:53,701 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-27 23:55:53,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:53,701 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:55:53,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:53,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 926070297, now seen corresponding path program 1 times [2023-01-27 23:55:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874551965] [2023-01-27 23:55:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:53,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:53,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:53,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:53,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:53,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:53,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 23:55:53,726 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:53,726 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:53,726 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:53,726 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-27 23:55:53,746 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:53,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,784 INFO L130 PetriNetUnfolder]: 43/388 cut-off events. [2023-01-27 23:55:53,784 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-27 23:55:53,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 388 events. 43/388 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1245 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 363. Up to 16 conditions per place. [2023-01-27 23:55:53,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,790 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:53,790 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,790 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 306 transitions, 689 flow [2023-01-27 23:55:53,826 INFO L130 PetriNetUnfolder]: 43/388 cut-off events. [2023-01-27 23:55:53,826 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-27 23:55:53,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 388 events. 43/388 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1245 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 363. Up to 16 conditions per place. [2023-01-27 23:55:53,839 INFO L119 LiptonReduction]: Number of co-enabled transitions 69160 [2023-01-27 23:55:56,649 INFO L134 LiptonReduction]: Checked pairs total: 129022 [2023-01-27 23:55:56,650 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-01-27 23:55:56,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:56,664 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:56,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:56,677 INFO L130 PetriNetUnfolder]: 13/105 cut-off events. [2023-01-27 23:55:56,678 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-27 23:55:56,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:56,678 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:55:56,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:56,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2084315748, now seen corresponding path program 1 times [2023-01-27 23:55:56,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:56,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022443274] [2023-01-27 23:55:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:56,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:56,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:56,734 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:56,734 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:56,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 23:55:56,735 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:56,735 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:56,735 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:56,735 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-27 23:55:56,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:56,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,857 INFO L130 PetriNetUnfolder]: 49/439 cut-off events. [2023-01-27 23:55:56,857 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-27 23:55:56,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 439 events. 49/439 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1453 event pairs, 0 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 422. Up to 18 conditions per place. [2023-01-27 23:55:56,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,864 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:56,864 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,864 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 345 transitions, 786 flow [2023-01-27 23:55:56,923 INFO L130 PetriNetUnfolder]: 49/439 cut-off events. [2023-01-27 23:55:56,923 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-27 23:55:56,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 439 events. 49/439 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1453 event pairs, 0 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 422. Up to 18 conditions per place. [2023-01-27 23:55:56,944 INFO L119 LiptonReduction]: Number of co-enabled transitions 90896 [2023-01-27 23:55:59,787 INFO L134 LiptonReduction]: Checked pairs total: 166167 [2023-01-27 23:55:59,788 INFO L136 LiptonReduction]: Total number of compositions: 323 [2023-01-27 23:55:59,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:55:59,791 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:55:59,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:55:59,799 INFO L130 PetriNetUnfolder]: 14/117 cut-off events. [2023-01-27 23:55:59,799 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-27 23:55:59,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:55:59,799 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:55:59,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:55:59,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:55:59,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1460192995, now seen corresponding path program 1 times [2023-01-27 23:55:59,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:55:59,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073246602] [2023-01-27 23:55:59,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:55:59,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:55:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:59,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:55:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:55:59,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:55:59,849 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:55:59,849 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:55:59,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 23:55:59,849 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:55:59,850 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:55:59,850 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:55:59,850 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-27 23:55:59,878 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:55:59,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 384 transitions, 885 flow [2023-01-27 23:55:59,936 INFO L130 PetriNetUnfolder]: 55/490 cut-off events. [2023-01-27 23:55:59,936 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-27 23:55:59,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 490 events. 55/490 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1655 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 482. Up to 20 conditions per place. [2023-01-27 23:55:59,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 357 places, 384 transitions, 885 flow [2023-01-27 23:55:59,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 357 places, 384 transitions, 885 flow [2023-01-27 23:55:59,947 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:55:59,947 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 357 places, 384 transitions, 885 flow [2023-01-27 23:55:59,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 357 places, 384 transitions, 885 flow [2023-01-27 23:55:59,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 357 places, 384 transitions, 885 flow [2023-01-27 23:56:00,005 INFO L130 PetriNetUnfolder]: 55/490 cut-off events. [2023-01-27 23:56:00,005 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-27 23:56:00,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 490 events. 55/490 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1655 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 482. Up to 20 conditions per place. [2023-01-27 23:56:00,038 INFO L119 LiptonReduction]: Number of co-enabled transitions 115596 [2023-01-27 23:56:03,597 INFO L134 LiptonReduction]: Checked pairs total: 224834 [2023-01-27 23:56:03,598 INFO L136 LiptonReduction]: Total number of compositions: 357 [2023-01-27 23:56:03,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:03,603 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:03,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:03,617 INFO L130 PetriNetUnfolder]: 16/132 cut-off events. [2023-01-27 23:56:03,617 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-27 23:56:03,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:03,617 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:03,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:03,618 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -92087449, now seen corresponding path program 1 times [2023-01-27 23:56:03,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:03,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471368162] [2023-01-27 23:56:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:03,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:03,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:03,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:03,652 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:03,652 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:03,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 23:56:03,652 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:03,652 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:03,652 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:03,652 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-27 23:56:03,680 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:03,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,750 INFO L130 PetriNetUnfolder]: 61/541 cut-off events. [2023-01-27 23:56:03,750 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-27 23:56:03,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 541 events. 61/541 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1875 event pairs, 0 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 545. Up to 22 conditions per place. [2023-01-27 23:56:03,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,759 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:03,759 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 423 transitions, 986 flow [2023-01-27 23:56:03,826 INFO L130 PetriNetUnfolder]: 61/541 cut-off events. [2023-01-27 23:56:03,826 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-27 23:56:03,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 541 events. 61/541 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1875 event pairs, 0 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 545. Up to 22 conditions per place. [2023-01-27 23:56:03,853 INFO L119 LiptonReduction]: Number of co-enabled transitions 143260 [2023-01-27 23:56:08,297 INFO L134 LiptonReduction]: Checked pairs total: 258728 [2023-01-27 23:56:08,297 INFO L136 LiptonReduction]: Total number of compositions: 403 [2023-01-27 23:56:08,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:08,300 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:08,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:08,310 INFO L130 PetriNetUnfolder]: 18/147 cut-off events. [2023-01-27 23:56:08,310 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-27 23:56:08,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:08,311 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:08,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:08,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1635506912, now seen corresponding path program 1 times [2023-01-27 23:56:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905826179] [2023-01-27 23:56:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:08,327 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:08,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:08,351 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:08,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:08,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 23:56:08,352 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:08,354 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:08,354 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:08,354 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-27 23:56:08,382 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:08,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,474 INFO L130 PetriNetUnfolder]: 67/592 cut-off events. [2023-01-27 23:56:08,475 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-27 23:56:08,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 592 events. 67/592 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2093 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 609. Up to 24 conditions per place. [2023-01-27 23:56:08,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,487 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:08,487 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 462 transitions, 1089 flow [2023-01-27 23:56:08,579 INFO L130 PetriNetUnfolder]: 67/592 cut-off events. [2023-01-27 23:56:08,580 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-27 23:56:08,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 592 events. 67/592 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2093 event pairs, 0 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 609. Up to 24 conditions per place. [2023-01-27 23:56:08,622 INFO L119 LiptonReduction]: Number of co-enabled transitions 173888 [2023-01-27 23:56:14,235 INFO L134 LiptonReduction]: Checked pairs total: 316254 [2023-01-27 23:56:14,235 INFO L136 LiptonReduction]: Total number of compositions: 430 [2023-01-27 23:56:14,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:14,251 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:14,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:14,295 INFO L130 PetriNetUnfolder]: 21/165 cut-off events. [2023-01-27 23:56:14,295 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-27 23:56:14,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:14,295 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:14,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:14,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:14,296 INFO L85 PathProgramCache]: Analyzing trace with hash -467396664, now seen corresponding path program 1 times [2023-01-27 23:56:14,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:14,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542230578] [2023-01-27 23:56:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:14,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:14,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:14,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:14,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:14,384 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:14,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-27 23:56:14,384 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:14,387 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:14,387 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:14,387 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-27 23:56:14,415 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:14,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,513 INFO L130 PetriNetUnfolder]: 73/643 cut-off events. [2023-01-27 23:56:14,514 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-27 23:56:14,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 643 events. 73/643 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2293 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 674. Up to 26 conditions per place. [2023-01-27 23:56:14,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,529 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,529 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:14,529 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,529 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 501 transitions, 1194 flow [2023-01-27 23:56:14,628 INFO L130 PetriNetUnfolder]: 73/643 cut-off events. [2023-01-27 23:56:14,628 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-27 23:56:14,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 643 events. 73/643 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2293 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 674. Up to 26 conditions per place. [2023-01-27 23:56:14,672 INFO L119 LiptonReduction]: Number of co-enabled transitions 207480 [2023-01-27 23:56:19,630 INFO L134 LiptonReduction]: Checked pairs total: 366814 [2023-01-27 23:56:19,630 INFO L136 LiptonReduction]: Total number of compositions: 467 [2023-01-27 23:56:19,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:19,640 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:19,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:19,665 INFO L130 PetriNetUnfolder]: 23/180 cut-off events. [2023-01-27 23:56:19,666 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-27 23:56:19,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:19,666 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:19,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:19,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:19,679 INFO L85 PathProgramCache]: Analyzing trace with hash 526812205, now seen corresponding path program 1 times [2023-01-27 23:56:19,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:19,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164319107] [2023-01-27 23:56:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:19,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:19,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:19,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:19,727 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:19,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:19,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-27 23:56:19,727 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:19,728 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:19,728 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:19,728 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-27 23:56:19,763 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:19,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:19,879 INFO L130 PetriNetUnfolder]: 79/694 cut-off events. [2023-01-27 23:56:19,879 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-27 23:56:19,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 694 events. 79/694 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2499 event pairs, 0 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 740. Up to 28 conditions per place. [2023-01-27 23:56:19,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:19,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:19,897 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:19,897 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:19,897 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:19,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 501 places, 540 transitions, 1301 flow [2023-01-27 23:56:20,013 INFO L130 PetriNetUnfolder]: 79/694 cut-off events. [2023-01-27 23:56:20,013 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-27 23:56:20,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 694 events. 79/694 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2499 event pairs, 0 based on Foata normal form. 0/588 useless extension candidates. Maximal degree in co-relation 740. Up to 28 conditions per place. [2023-01-27 23:56:20,068 INFO L119 LiptonReduction]: Number of co-enabled transitions 244036 [2023-01-27 23:56:24,325 INFO L134 LiptonReduction]: Checked pairs total: 439604 [2023-01-27 23:56:24,325 INFO L136 LiptonReduction]: Total number of compositions: 504 [2023-01-27 23:56:24,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:24,327 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:24,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:24,348 INFO L130 PetriNetUnfolder]: 25/195 cut-off events. [2023-01-27 23:56:24,348 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-27 23:56:24,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:24,348 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:24,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:24,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 2034555567, now seen corresponding path program 1 times [2023-01-27 23:56:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:24,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256618123] [2023-01-27 23:56:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:24,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:24,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:24,389 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:24,389 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:24,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-27 23:56:24,389 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:24,390 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:24,390 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:24,390 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-27 23:56:24,430 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:24,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,569 INFO L130 PetriNetUnfolder]: 85/745 cut-off events. [2023-01-27 23:56:24,569 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-27 23:56:24,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 745 events. 85/745 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2713 event pairs, 0 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 807. Up to 30 conditions per place. [2023-01-27 23:56:24,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,590 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,590 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:24,590 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,590 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 537 places, 579 transitions, 1410 flow [2023-01-27 23:56:24,720 INFO L130 PetriNetUnfolder]: 85/745 cut-off events. [2023-01-27 23:56:24,720 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-27 23:56:24,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 745 events. 85/745 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2713 event pairs, 0 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 807. Up to 30 conditions per place. [2023-01-27 23:56:24,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 283556 [2023-01-27 23:56:29,925 INFO L134 LiptonReduction]: Checked pairs total: 511420 [2023-01-27 23:56:29,925 INFO L136 LiptonReduction]: Total number of compositions: 544 [2023-01-27 23:56:29,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:29,926 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:29,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:29,943 INFO L130 PetriNetUnfolder]: 26/207 cut-off events. [2023-01-27 23:56:29,943 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-27 23:56:29,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:29,943 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:56:29,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:29,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1037257380, now seen corresponding path program 1 times [2023-01-27 23:56:29,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971155589] [2023-01-27 23:56:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:29,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:29,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:29,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:29,982 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:29,982 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:29,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-27 23:56:29,982 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:29,982 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:29,982 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:29,982 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-27 23:56:30,021 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:30,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,172 INFO L130 PetriNetUnfolder]: 91/796 cut-off events. [2023-01-27 23:56:30,172 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-27 23:56:30,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 796 events. 91/796 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2933 event pairs, 0 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 875. Up to 32 conditions per place. [2023-01-27 23:56:30,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,196 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:30,196 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,196 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 618 transitions, 1521 flow [2023-01-27 23:56:30,344 INFO L130 PetriNetUnfolder]: 91/796 cut-off events. [2023-01-27 23:56:30,344 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-27 23:56:30,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 796 events. 91/796 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2933 event pairs, 0 based on Foata normal form. 0/674 useless extension candidates. Maximal degree in co-relation 875. Up to 32 conditions per place. [2023-01-27 23:56:30,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 326040 [2023-01-27 23:56:35,832 INFO L134 LiptonReduction]: Checked pairs total: 586822 [2023-01-27 23:56:35,832 INFO L136 LiptonReduction]: Total number of compositions: 579 [2023-01-27 23:56:35,835 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:35,835 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:35,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:35,859 INFO L130 PetriNetUnfolder]: 29/225 cut-off events. [2023-01-27 23:56:35,859 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-27 23:56:35,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:35,859 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] [2023-01-27 23:56:35,859 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:35,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash 619575807, now seen corresponding path program 1 times [2023-01-27 23:56:35,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:35,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680324268] [2023-01-27 23:56:35,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:35,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:35,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:35,910 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:35,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:35,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:35,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-27 23:56:35,910 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:35,911 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:35,911 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:35,911 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-27 23:56:35,952 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:35,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,120 INFO L130 PetriNetUnfolder]: 97/847 cut-off events. [2023-01-27 23:56:36,120 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-27 23:56:36,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 847 events. 97/847 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3137 event pairs, 0 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 944. Up to 34 conditions per place. [2023-01-27 23:56:36,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,148 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:36,148 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,148 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 609 places, 657 transitions, 1634 flow [2023-01-27 23:56:36,451 INFO L130 PetriNetUnfolder]: 97/847 cut-off events. [2023-01-27 23:56:36,452 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-27 23:56:36,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1032 conditions, 847 events. 97/847 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3137 event pairs, 0 based on Foata normal form. 0/717 useless extension candidates. Maximal degree in co-relation 944. Up to 34 conditions per place. [2023-01-27 23:56:36,513 INFO L119 LiptonReduction]: Number of co-enabled transitions 371488 [2023-01-27 23:56:42,162 INFO L134 LiptonReduction]: Checked pairs total: 664179 [2023-01-27 23:56:42,163 INFO L136 LiptonReduction]: Total number of compositions: 619 [2023-01-27 23:56:42,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:42,165 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:42,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:42,188 INFO L130 PetriNetUnfolder]: 30/237 cut-off events. [2023-01-27 23:56:42,188 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-27 23:56:42,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:42,189 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] [2023-01-27 23:56:42,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:42,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:42,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1954359520, now seen corresponding path program 1 times [2023-01-27 23:56:42,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:42,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382287246] [2023-01-27 23:56:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:42,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:42,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:42,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:42,224 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:42,224 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:42,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-27 23:56:42,224 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:42,224 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:42,224 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:42,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-27 23:56:42,264 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:42,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,448 INFO L130 PetriNetUnfolder]: 103/898 cut-off events. [2023-01-27 23:56:42,449 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-27 23:56:42,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 898 events. 103/898 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3337 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1014. Up to 36 conditions per place. [2023-01-27 23:56:42,470 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,479 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:42,479 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,479 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 696 transitions, 1749 flow [2023-01-27 23:56:42,775 INFO L130 PetriNetUnfolder]: 103/898 cut-off events. [2023-01-27 23:56:42,775 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-27 23:56:42,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 898 events. 103/898 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3337 event pairs, 0 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 1014. Up to 36 conditions per place. [2023-01-27 23:56:42,856 INFO L119 LiptonReduction]: Number of co-enabled transitions 419900 [2023-01-27 23:56:50,082 INFO L134 LiptonReduction]: Checked pairs total: 737302 [2023-01-27 23:56:50,082 INFO L136 LiptonReduction]: Total number of compositions: 646 [2023-01-27 23:56:50,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:50,087 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:50,087 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:50,110 INFO L130 PetriNetUnfolder]: 32/252 cut-off events. [2023-01-27 23:56:50,110 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-27 23:56:50,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:50,111 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] [2023-01-27 23:56:50,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:50,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1277048648, now seen corresponding path program 1 times [2023-01-27 23:56:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328351369] [2023-01-27 23:56:50,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:50,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:50,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:50,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:50,177 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:50,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:50,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-27 23:56:50,177 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:50,177 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:50,177 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:50,177 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-27 23:56:50,230 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:50,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,540 INFO L130 PetriNetUnfolder]: 109/949 cut-off events. [2023-01-27 23:56:50,540 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-27 23:56:50,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 949 events. 109/949 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3549 event pairs, 0 based on Foata normal form. 0/803 useless extension candidates. Maximal degree in co-relation 1085. Up to 38 conditions per place. [2023-01-27 23:56:50,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,579 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:50,579 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,579 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 681 places, 735 transitions, 1866 flow [2023-01-27 23:56:50,833 INFO L130 PetriNetUnfolder]: 109/949 cut-off events. [2023-01-27 23:56:50,833 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-27 23:56:50,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 949 events. 109/949 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3549 event pairs, 0 based on Foata normal form. 0/803 useless extension candidates. Maximal degree in co-relation 1085. Up to 38 conditions per place. [2023-01-27 23:56:50,935 INFO L119 LiptonReduction]: Number of co-enabled transitions 471276 [2023-01-27 23:56:57,203 INFO L134 LiptonReduction]: Checked pairs total: 867189 [2023-01-27 23:56:57,208 INFO L136 LiptonReduction]: Total number of compositions: 697 [2023-01-27 23:56:57,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:56:57,211 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:56:57,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:56:57,252 INFO L130 PetriNetUnfolder]: 34/267 cut-off events. [2023-01-27 23:56:57,252 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-27 23:56:57,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:56:57,252 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] [2023-01-27 23:56:57,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:56:57,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:56:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1399453563, now seen corresponding path program 1 times [2023-01-27 23:56:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:56:57,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830137123] [2023-01-27 23:56:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:56:57,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:56:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:57,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:56:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:56:57,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:56:57,308 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:56:57,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:56:57,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-27 23:56:57,309 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:56:57,309 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:56:57,309 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:56:57,309 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-27 23:56:57,381 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:56:57,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:57,700 INFO L130 PetriNetUnfolder]: 115/1000 cut-off events. [2023-01-27 23:56:57,700 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-27 23:56:57,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 1000 events. 115/1000 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3791 event pairs, 0 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1157. Up to 40 conditions per place. [2023-01-27 23:56:57,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:57,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:57,746 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:56:57,747 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:57,747 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:57,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 717 places, 774 transitions, 1985 flow [2023-01-27 23:56:58,096 INFO L130 PetriNetUnfolder]: 115/1000 cut-off events. [2023-01-27 23:56:58,096 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-27 23:56:58,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 1000 events. 115/1000 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3791 event pairs, 0 based on Foata normal form. 0/846 useless extension candidates. Maximal degree in co-relation 1157. Up to 40 conditions per place. [2023-01-27 23:56:58,224 INFO L119 LiptonReduction]: Number of co-enabled transitions 525616 [2023-01-27 23:57:06,190 INFO L134 LiptonReduction]: Checked pairs total: 937365 [2023-01-27 23:57:06,190 INFO L136 LiptonReduction]: Total number of compositions: 715 [2023-01-27 23:57:06,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:06,192 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:06,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:06,219 INFO L130 PetriNetUnfolder]: 36/282 cut-off events. [2023-01-27 23:57:06,219 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-27 23:57:06,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:06,220 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] [2023-01-27 23:57:06,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:06,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1810455404, now seen corresponding path program 1 times [2023-01-27 23:57:06,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:06,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803300124] [2023-01-27 23:57:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:06,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:06,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:06,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:06,279 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:06,279 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-27 23:57:06,279 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:06,280 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:06,280 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:06,280 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-27 23:57:06,332 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:06,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,699 INFO L130 PetriNetUnfolder]: 121/1051 cut-off events. [2023-01-27 23:57:06,699 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-27 23:57:06,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1051 events. 121/1051 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3986 event pairs, 0 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 1230. Up to 42 conditions per place. [2023-01-27 23:57:06,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:06,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,729 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 753 places, 813 transitions, 2106 flow [2023-01-27 23:57:06,997 INFO L130 PetriNetUnfolder]: 121/1051 cut-off events. [2023-01-27 23:57:06,998 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-27 23:57:07,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1051 events. 121/1051 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 3986 event pairs, 0 based on Foata normal form. 0/889 useless extension candidates. Maximal degree in co-relation 1230. Up to 42 conditions per place. [2023-01-27 23:57:07,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 582920 [2023-01-27 23:57:14,879 INFO L134 LiptonReduction]: Checked pairs total: 1059736 [2023-01-27 23:57:14,879 INFO L136 LiptonReduction]: Total number of compositions: 760 [2023-01-27 23:57:14,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:14,890 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:14,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:14,921 INFO L130 PetriNetUnfolder]: 39/300 cut-off events. [2023-01-27 23:57:14,921 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-27 23:57:14,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:14,922 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] [2023-01-27 23:57:14,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:14,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:14,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1431051455, now seen corresponding path program 1 times [2023-01-27 23:57:14,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:14,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109340246] [2023-01-27 23:57:14,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:14,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:14,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:14,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:14,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:14,968 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:14,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-27 23:57:14,969 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:14,969 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:14,969 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:14,969 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-27 23:57:15,028 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:15,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,422 INFO L130 PetriNetUnfolder]: 127/1102 cut-off events. [2023-01-27 23:57:15,422 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-27 23:57:15,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 1102 events. 127/1102 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4186 event pairs, 0 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1304. Up to 44 conditions per place. [2023-01-27 23:57:15,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,466 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:15,466 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,466 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 789 places, 852 transitions, 2229 flow [2023-01-27 23:57:15,790 INFO L130 PetriNetUnfolder]: 127/1102 cut-off events. [2023-01-27 23:57:15,791 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-27 23:57:15,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397 conditions, 1102 events. 127/1102 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4186 event pairs, 0 based on Foata normal form. 0/932 useless extension candidates. Maximal degree in co-relation 1304. Up to 44 conditions per place. [2023-01-27 23:57:15,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 643188 [2023-01-27 23:57:24,164 INFO L134 LiptonReduction]: Checked pairs total: 1156886 [2023-01-27 23:57:24,164 INFO L136 LiptonReduction]: Total number of compositions: 804 [2023-01-27 23:57:24,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:24,166 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:24,166 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:24,199 INFO L130 PetriNetUnfolder]: 41/315 cut-off events. [2023-01-27 23:57:24,199 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-27 23:57:24,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:24,200 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] [2023-01-27 23:57:24,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:24,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1595632074, now seen corresponding path program 1 times [2023-01-27 23:57:24,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:24,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716605159] [2023-01-27 23:57:24,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:24,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:24,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:24,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:24,257 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:24,257 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:24,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-27 23:57:24,258 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:24,258 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:24,258 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:24,258 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-27 23:57:24,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:24,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:24,750 INFO L130 PetriNetUnfolder]: 133/1153 cut-off events. [2023-01-27 23:57:24,750 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-27 23:57:24,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 1153 events. 133/1153 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4281 event pairs, 0 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1379. Up to 46 conditions per place. [2023-01-27 23:57:24,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:24,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:24,793 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:24,793 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:24,793 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:24,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 891 transitions, 2354 flow [2023-01-27 23:57:25,125 INFO L130 PetriNetUnfolder]: 133/1153 cut-off events. [2023-01-27 23:57:25,125 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-27 23:57:25,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 1153 events. 133/1153 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4281 event pairs, 0 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1379. Up to 46 conditions per place. [2023-01-27 23:57:25,349 INFO L119 LiptonReduction]: Number of co-enabled transitions 706420 [2023-01-27 23:57:33,944 INFO L134 LiptonReduction]: Checked pairs total: 1285544 [2023-01-27 23:57:33,945 INFO L136 LiptonReduction]: Total number of compositions: 832 [2023-01-27 23:57:33,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:33,946 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:33,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:33,989 INFO L130 PetriNetUnfolder]: 42/327 cut-off events. [2023-01-27 23:57:33,989 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-27 23:57:33,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:33,989 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] [2023-01-27 23:57:33,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:33,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:33,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2075298916, now seen corresponding path program 1 times [2023-01-27 23:57:33,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:33,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237519839] [2023-01-27 23:57:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:33,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:34,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:34,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:34,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:34,037 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:34,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-27 23:57:34,037 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:34,037 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:34,037 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:34,037 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-27 23:57:34,120 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:34,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:34,574 INFO L130 PetriNetUnfolder]: 139/1204 cut-off events. [2023-01-27 23:57:34,574 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-27 23:57:34,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1204 events. 139/1204 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4497 event pairs, 0 based on Foata normal form. 0/1018 useless extension candidates. Maximal degree in co-relation 1455. Up to 48 conditions per place. [2023-01-27 23:57:34,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:34,632 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:34,633 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:34,633 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:34,633 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:34,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 861 places, 930 transitions, 2481 flow [2023-01-27 23:57:35,021 INFO L130 PetriNetUnfolder]: 139/1204 cut-off events. [2023-01-27 23:57:35,022 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-27 23:57:35,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1204 events. 139/1204 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4497 event pairs, 0 based on Foata normal form. 0/1018 useless extension candidates. Maximal degree in co-relation 1455. Up to 48 conditions per place. [2023-01-27 23:57:35,218 INFO L119 LiptonReduction]: Number of co-enabled transitions 772616 [2023-01-27 23:57:44,701 INFO L134 LiptonReduction]: Checked pairs total: 1402423 [2023-01-27 23:57:44,701 INFO L136 LiptonReduction]: Total number of compositions: 877 [2023-01-27 23:57:44,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:44,703 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:44,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:44,760 INFO L130 PetriNetUnfolder]: 44/342 cut-off events. [2023-01-27 23:57:44,760 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-27 23:57:44,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:44,761 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] [2023-01-27 23:57:44,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:44,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:44,761 INFO L85 PathProgramCache]: Analyzing trace with hash -862086508, now seen corresponding path program 1 times [2023-01-27 23:57:44,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:44,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681181275] [2023-01-27 23:57:44,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:44,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:44,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:44,836 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:44,836 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:44,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-27 23:57:44,838 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:44,838 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:44,838 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:44,838 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-27 23:57:44,919 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:44,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,395 INFO L130 PetriNetUnfolder]: 145/1255 cut-off events. [2023-01-27 23:57:45,396 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-27 23:57:45,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 1255 events. 145/1255 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4682 event pairs, 0 based on Foata normal form. 0/1061 useless extension candidates. Maximal degree in co-relation 1532. Up to 50 conditions per place. [2023-01-27 23:57:45,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,460 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:45,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,460 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 897 places, 969 transitions, 2610 flow [2023-01-27 23:57:45,900 INFO L130 PetriNetUnfolder]: 145/1255 cut-off events. [2023-01-27 23:57:45,900 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-27 23:57:45,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 1255 events. 145/1255 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4682 event pairs, 0 based on Foata normal form. 0/1061 useless extension candidates. Maximal degree in co-relation 1532. Up to 50 conditions per place. [2023-01-27 23:57:46,128 INFO L119 LiptonReduction]: Number of co-enabled transitions 841776 [2023-01-27 23:57:54,643 INFO L134 LiptonReduction]: Checked pairs total: 1534496 [2023-01-27 23:57:54,643 INFO L136 LiptonReduction]: Total number of compositions: 910 [2023-01-27 23:57:54,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:57:54,645 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:57:54,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:57:54,687 INFO L130 PetriNetUnfolder]: 47/360 cut-off events. [2023-01-27 23:57:54,687 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-27 23:57:54,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:57:54,688 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] [2023-01-27 23:57:54,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:57:54,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:57:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1594743800, now seen corresponding path program 1 times [2023-01-27 23:57:54,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:57:54,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258368150] [2023-01-27 23:57:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:57:54,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:57:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:54,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:57:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:57:54,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:57:54,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:57:54,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:57:54,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-27 23:57:54,744 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:57:54,744 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:57:54,744 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:57:54,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-27 23:57:54,807 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:57:54,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,277 INFO L130 PetriNetUnfolder]: 151/1306 cut-off events. [2023-01-27 23:57:55,277 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-27 23:57:55,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1306 events. 151/1306 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4890 event pairs, 0 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 1610. Up to 52 conditions per place. [2023-01-27 23:57:55,329 INFO L82 GeneralOperation]: Start removeDead. Operand has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,347 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:57:55,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,353 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 933 places, 1008 transitions, 2741 flow [2023-01-27 23:57:55,822 INFO L130 PetriNetUnfolder]: 151/1306 cut-off events. [2023-01-27 23:57:55,822 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-27 23:57:55,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 1306 events. 151/1306 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 4890 event pairs, 0 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 1610. Up to 52 conditions per place. [2023-01-27 23:57:56,040 INFO L119 LiptonReduction]: Number of co-enabled transitions 913900 [2023-01-27 23:58:06,381 INFO L134 LiptonReduction]: Checked pairs total: 1665559 [2023-01-27 23:58:06,381 INFO L136 LiptonReduction]: Total number of compositions: 942 [2023-01-27 23:58:06,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:58:06,382 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:58:06,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:58:06,428 INFO L130 PetriNetUnfolder]: 48/372 cut-off events. [2023-01-27 23:58:06,428 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-27 23:58:06,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:58:06,428 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] [2023-01-27 23:58:06,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:58:06,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:58:06,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1068087339, now seen corresponding path program 1 times [2023-01-27 23:58:06,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:58:06,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586641998] [2023-01-27 23:58:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:58:06,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:58:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:06,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:58:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:06,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:58:06,512 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:58:06,513 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:58:06,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-27 23:58:06,513 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:58:06,513 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:58:06,513 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:58:06,513 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-27 23:58:06,584 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:58:06,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,050 INFO L130 PetriNetUnfolder]: 157/1357 cut-off events. [2023-01-27 23:58:07,051 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-27 23:58:07,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 1357 events. 157/1357 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5092 event pairs, 0 based on Foata normal form. 0/1147 useless extension candidates. Maximal degree in co-relation 1689. Up to 54 conditions per place. [2023-01-27 23:58:07,107 INFO L82 GeneralOperation]: Start removeDead. Operand has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,128 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:58:07,128 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,128 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 969 places, 1047 transitions, 2874 flow [2023-01-27 23:58:07,609 INFO L130 PetriNetUnfolder]: 157/1357 cut-off events. [2023-01-27 23:58:07,609 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-27 23:58:07,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787 conditions, 1357 events. 157/1357 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5092 event pairs, 0 based on Foata normal form. 0/1147 useless extension candidates. Maximal degree in co-relation 1689. Up to 54 conditions per place. [2023-01-27 23:58:08,009 INFO L119 LiptonReduction]: Number of co-enabled transitions 988988 [2023-01-27 23:58:18,291 INFO L134 LiptonReduction]: Checked pairs total: 1802479 [2023-01-27 23:58:18,291 INFO L136 LiptonReduction]: Total number of compositions: 995 [2023-01-27 23:58:18,292 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:58:18,298 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:58:18,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:58:18,348 INFO L130 PetriNetUnfolder]: 50/387 cut-off events. [2023-01-27 23:58:18,348 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-27 23:58:18,348 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:58:18,348 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] [2023-01-27 23:58:18,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:58:18,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:58:18,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1574388868, now seen corresponding path program 1 times [2023-01-27 23:58:18,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:58:18,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371289406] [2023-01-27 23:58:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:58:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:58:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:18,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:58:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:18,399 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:58:18,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:58:18,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:58:18,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-27 23:58:18,400 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:58:18,400 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:58:18,400 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:58:18,400 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-27 23:58:18,471 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:58:18,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,028 INFO L130 PetriNetUnfolder]: 163/1408 cut-off events. [2023-01-27 23:58:19,028 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-27 23:58:19,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1408 events. 163/1408 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5303 event pairs, 0 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 1769. Up to 56 conditions per place. [2023-01-27 23:58:19,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,099 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:58:19,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,099 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1005 places, 1086 transitions, 3009 flow [2023-01-27 23:58:19,599 INFO L130 PetriNetUnfolder]: 163/1408 cut-off events. [2023-01-27 23:58:19,599 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-27 23:58:19,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1408 events. 163/1408 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5303 event pairs, 0 based on Foata normal form. 0/1190 useless extension candidates. Maximal degree in co-relation 1769. Up to 56 conditions per place. [2023-01-27 23:58:19,882 INFO L119 LiptonReduction]: Number of co-enabled transitions 1067040 [2023-01-27 23:58:28,919 INFO L134 LiptonReduction]: Checked pairs total: 1953807 [2023-01-27 23:58:28,920 INFO L136 LiptonReduction]: Total number of compositions: 1023 [2023-01-27 23:58:28,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:58:28,921 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:58:28,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:58:28,974 INFO L130 PetriNetUnfolder]: 52/402 cut-off events. [2023-01-27 23:58:28,974 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-27 23:58:28,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:58:28,974 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] [2023-01-27 23:58:28,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:58:28,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:58:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash -438207172, now seen corresponding path program 1 times [2023-01-27 23:58:28,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:58:28,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690419185] [2023-01-27 23:58:28,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:58:28,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:58:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:29,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:58:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:29,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:58:29,028 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:58:29,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:58:29,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-01-27 23:58:29,028 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:58:29,028 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:58:29,028 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:58:29,028 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-01-27 23:58:29,098 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:58:29,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:29,677 INFO L130 PetriNetUnfolder]: 169/1459 cut-off events. [2023-01-27 23:58:29,678 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-27 23:58:29,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 1459 events. 169/1459 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5514 event pairs, 0 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1850. Up to 58 conditions per place. [2023-01-27 23:58:29,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:29,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:29,746 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:58:29,746 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:29,746 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:29,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1041 places, 1125 transitions, 3146 flow [2023-01-27 23:58:30,275 INFO L130 PetriNetUnfolder]: 169/1459 cut-off events. [2023-01-27 23:58:30,275 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-27 23:58:30,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 1459 events. 169/1459 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5514 event pairs, 0 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1850. Up to 58 conditions per place. [2023-01-27 23:58:30,577 INFO L119 LiptonReduction]: Number of co-enabled transitions 1148056 [2023-01-27 23:58:41,056 INFO L134 LiptonReduction]: Checked pairs total: 2055280 [2023-01-27 23:58:41,056 INFO L136 LiptonReduction]: Total number of compositions: 1067 [2023-01-27 23:58:41,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:58:41,058 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:58:41,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:58:41,116 INFO L130 PetriNetUnfolder]: 54/417 cut-off events. [2023-01-27 23:58:41,116 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-27 23:58:41,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:58:41,117 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] [2023-01-27 23:58:41,117 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:58:41,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:58:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1868654060, now seen corresponding path program 1 times [2023-01-27 23:58:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:58:41,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033873821] [2023-01-27 23:58:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:58:41,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:58:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:41,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:58:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:41,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:58:41,172 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:58:41,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:58:41,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-01-27 23:58:41,173 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:58:41,173 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:58:41,173 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:58:41,173 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-01-27 23:58:41,242 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:58:41,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:41,881 INFO L130 PetriNetUnfolder]: 175/1510 cut-off events. [2023-01-27 23:58:41,881 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-27 23:58:41,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2033 conditions, 1510 events. 175/1510 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5692 event pairs, 0 based on Foata normal form. 0/1276 useless extension candidates. Maximal degree in co-relation 1932. Up to 60 conditions per place. [2023-01-27 23:58:41,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:41,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:41,968 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:58:41,968 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:41,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:41,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1077 places, 1164 transitions, 3285 flow [2023-01-27 23:58:42,539 INFO L130 PetriNetUnfolder]: 175/1510 cut-off events. [2023-01-27 23:58:42,539 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-27 23:58:42,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2033 conditions, 1510 events. 175/1510 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5692 event pairs, 0 based on Foata normal form. 0/1276 useless extension candidates. Maximal degree in co-relation 1932. Up to 60 conditions per place. [2023-01-27 23:58:42,880 INFO L119 LiptonReduction]: Number of co-enabled transitions 1232036 [2023-01-27 23:58:54,333 INFO L134 LiptonReduction]: Checked pairs total: 2247082 [2023-01-27 23:58:54,334 INFO L136 LiptonReduction]: Total number of compositions: 1088 [2023-01-27 23:58:54,337 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:58:54,338 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:58:54,338 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:58:54,500 INFO L130 PetriNetUnfolder]: 56/432 cut-off events. [2023-01-27 23:58:54,500 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-27 23:58:54,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:58:54,500 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] [2023-01-27 23:58:54,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:58:54,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:58:54,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1468048275, now seen corresponding path program 1 times [2023-01-27 23:58:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:58:54,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523658208] [2023-01-27 23:58:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:58:54,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:58:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:54,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:58:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:58:54,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:58:54,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:58:54,618 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:58:54,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-01-27 23:58:54,618 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:58:54,618 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:58:54,618 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:58:54,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-01-27 23:58:54,686 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:58:54,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:55,303 INFO L130 PetriNetUnfolder]: 181/1561 cut-off events. [2023-01-27 23:58:55,303 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-27 23:58:55,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 1561 events. 181/1561 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5924 event pairs, 0 based on Foata normal form. 0/1319 useless extension candidates. Maximal degree in co-relation 2015. Up to 62 conditions per place. [2023-01-27 23:58:55,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:55,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:55,409 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:58:55,409 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:55,409 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:55,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1113 places, 1203 transitions, 3426 flow [2023-01-27 23:58:56,116 INFO L130 PetriNetUnfolder]: 181/1561 cut-off events. [2023-01-27 23:58:56,116 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-27 23:58:56,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2117 conditions, 1561 events. 181/1561 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 5924 event pairs, 0 based on Foata normal form. 0/1319 useless extension candidates. Maximal degree in co-relation 2015. Up to 62 conditions per place. [2023-01-27 23:58:56,382 INFO L119 LiptonReduction]: Number of co-enabled transitions 1318980 [2023-01-27 23:59:07,698 INFO L134 LiptonReduction]: Checked pairs total: 2399337 [2023-01-27 23:59:07,698 INFO L136 LiptonReduction]: Total number of compositions: 1124 [2023-01-27 23:59:07,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:59:07,700 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:59:07,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:59:07,764 INFO L130 PetriNetUnfolder]: 58/447 cut-off events. [2023-01-27 23:59:07,764 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-27 23:59:07,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:59:07,765 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] [2023-01-27 23:59:07,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:59:07,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:59:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash 62794123, now seen corresponding path program 1 times [2023-01-27 23:59:07,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:59:07,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791344878] [2023-01-27 23:59:07,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:59:07,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:59:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:07,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:59:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:07,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:59:07,856 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:59:07,856 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:59:07,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-01-27 23:59:07,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:59:07,857 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:59:07,857 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:59:07,857 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-01-27 23:59:07,937 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:59:07,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:08,626 INFO L130 PetriNetUnfolder]: 187/1612 cut-off events. [2023-01-27 23:59:08,626 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-27 23:59:08,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2202 conditions, 1612 events. 187/1612 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6115 event pairs, 0 based on Foata normal form. 0/1362 useless extension candidates. Maximal degree in co-relation 2099. Up to 64 conditions per place. [2023-01-27 23:59:08,713 INFO L82 GeneralOperation]: Start removeDead. Operand has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:08,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:08,742 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:59:08,742 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:08,742 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:08,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1149 places, 1242 transitions, 3569 flow [2023-01-27 23:59:09,541 INFO L130 PetriNetUnfolder]: 187/1612 cut-off events. [2023-01-27 23:59:09,541 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-27 23:59:09,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2202 conditions, 1612 events. 187/1612 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6115 event pairs, 0 based on Foata normal form. 0/1362 useless extension candidates. Maximal degree in co-relation 2099. Up to 64 conditions per place. [2023-01-27 23:59:09,850 INFO L119 LiptonReduction]: Number of co-enabled transitions 1408888 [2023-01-27 23:59:19,637 INFO L134 LiptonReduction]: Checked pairs total: 2596139 [2023-01-27 23:59:19,637 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-01-27 23:59:19,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:59:19,639 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:59:19,640 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:59:19,734 INFO L130 PetriNetUnfolder]: 60/462 cut-off events. [2023-01-27 23:59:19,734 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-27 23:59:19,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:59:19,734 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] [2023-01-27 23:59:19,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:59:19,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:59:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1726361634, now seen corresponding path program 1 times [2023-01-27 23:59:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:59:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310357508] [2023-01-27 23:59:19,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:59:19,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:59:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:19,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:59:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:19,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:59:19,807 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:59:19,807 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:59:19,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-01-27 23:59:19,807 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:59:19,807 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:59:19,807 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:59:19,807 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-01-27 23:59:19,888 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:59:19,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:20,594 INFO L130 PetriNetUnfolder]: 193/1663 cut-off events. [2023-01-27 23:59:20,594 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-27 23:59:20,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 1663 events. 193/1663 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6325 event pairs, 0 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 2184. Up to 66 conditions per place. [2023-01-27 23:59:20,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:20,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:20,717 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:59:20,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:20,717 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:20,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1185 places, 1281 transitions, 3714 flow [2023-01-27 23:59:21,481 INFO L130 PetriNetUnfolder]: 193/1663 cut-off events. [2023-01-27 23:59:21,481 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-27 23:59:21,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2288 conditions, 1663 events. 193/1663 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6325 event pairs, 0 based on Foata normal form. 0/1405 useless extension candidates. Maximal degree in co-relation 2184. Up to 66 conditions per place. [2023-01-27 23:59:21,814 INFO L119 LiptonReduction]: Number of co-enabled transitions 1501760 [2023-01-27 23:59:32,207 INFO L134 LiptonReduction]: Checked pairs total: 2728828 [2023-01-27 23:59:32,207 INFO L136 LiptonReduction]: Total number of compositions: 1207 [2023-01-27 23:59:32,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:59:32,208 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:59:32,208 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:59:32,282 INFO L130 PetriNetUnfolder]: 62/477 cut-off events. [2023-01-27 23:59:32,282 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-27 23:59:32,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:59:32,282 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] [2023-01-27 23:59:32,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:59:32,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:59:32,283 INFO L85 PathProgramCache]: Analyzing trace with hash 373859672, now seen corresponding path program 1 times [2023-01-27 23:59:32,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:59:32,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930599886] [2023-01-27 23:59:32,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:59:32,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:59:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:32,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:59:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:32,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:59:32,367 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:59:32,367 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:59:32,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-01-27 23:59:32,368 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:59:32,368 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:59:32,368 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:59:32,368 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-01-27 23:59:32,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:59:32,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:33,179 INFO L130 PetriNetUnfolder]: 199/1714 cut-off events. [2023-01-27 23:59:33,179 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-27 23:59:33,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2375 conditions, 1714 events. 199/1714 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6520 event pairs, 0 based on Foata normal form. 0/1448 useless extension candidates. Maximal degree in co-relation 2270. Up to 68 conditions per place. [2023-01-27 23:59:33,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:33,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:33,313 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:59:33,313 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:33,313 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:33,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1221 places, 1320 transitions, 3861 flow [2023-01-27 23:59:34,130 INFO L130 PetriNetUnfolder]: 199/1714 cut-off events. [2023-01-27 23:59:34,130 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-27 23:59:34,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2375 conditions, 1714 events. 199/1714 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6520 event pairs, 0 based on Foata normal form. 0/1448 useless extension candidates. Maximal degree in co-relation 2270. Up to 68 conditions per place. [2023-01-27 23:59:34,445 INFO L119 LiptonReduction]: Number of co-enabled transitions 1597596 [2023-01-27 23:59:46,992 INFO L134 LiptonReduction]: Checked pairs total: 2925214 [2023-01-27 23:59:46,992 INFO L136 LiptonReduction]: Total number of compositions: 1251 [2023-01-27 23:59:46,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-27 23:59:46,994 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 23:59:46,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-27 23:59:47,073 INFO L130 PetriNetUnfolder]: 64/492 cut-off events. [2023-01-27 23:59:47,073 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-27 23:59:47,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 23:59:47,073 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:59:47,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 23:59:47,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 23:59:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash 59032820, now seen corresponding path program 1 times [2023-01-27 23:59:47,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 23:59:47,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749610082] [2023-01-27 23:59:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 23:59:47,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 23:59:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:47,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 23:59:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 23:59:47,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 23:59:47,144 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 23:59:47,144 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-27 23:59:47,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-01-27 23:59:47,144 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 23:59:47,145 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-27 23:59:47,145 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 23:59:47,145 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-01-27 23:59:47,303 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 23:59:47,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,086 INFO L130 PetriNetUnfolder]: 205/1765 cut-off events. [2023-01-27 23:59:48,086 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-27 23:59:48,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 1765 events. 205/1765 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6741 event pairs, 0 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2357. Up to 70 conditions per place. [2023-01-27 23:59:48,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,226 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 23:59:48,226 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,226 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1257 places, 1359 transitions, 4010 flow [2023-01-27 23:59:48,995 INFO L130 PetriNetUnfolder]: 205/1765 cut-off events. [2023-01-27 23:59:48,996 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-27 23:59:49,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 1765 events. 205/1765 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 6741 event pairs, 0 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2357. Up to 70 conditions per place. [2023-01-27 23:59:49,619 INFO L119 LiptonReduction]: Number of co-enabled transitions 1696396 [2023-01-28 00:00:02,006 INFO L134 LiptonReduction]: Checked pairs total: 3089109 [2023-01-28 00:00:02,006 INFO L136 LiptonReduction]: Total number of compositions: 1276 [2023-01-28 00:00:02,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:00:02,008 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:00:02,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:00:02,097 INFO L130 PetriNetUnfolder]: 66/507 cut-off events. [2023-01-28 00:00:02,097 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:00:02,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:00:02,097 INFO L208 CegarLoopForPetriNet]: trace histogram [35, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:00:02,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:00:02,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:00:02,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1271997053, now seen corresponding path program 1 times [2023-01-28 00:00:02,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:00:02,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144037448] [2023-01-28 00:00:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:00:02,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:00:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:02,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:00:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:02,175 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:00:02,176 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:00:02,176 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:00:02,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-01-28 00:00:02,176 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:00:02,176 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:00:02,176 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:00:02,176 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-01-28 00:00:02,265 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:00:02,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:03,200 INFO L130 PetriNetUnfolder]: 211/1816 cut-off events. [2023-01-28 00:00:03,200 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:00:03,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2552 conditions, 1816 events. 211/1816 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7003 event pairs, 0 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2445. Up to 72 conditions per place. [2023-01-28 00:00:03,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:03,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:03,358 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:00:03,358 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:03,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:03,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1293 places, 1398 transitions, 4161 flow [2023-01-28 00:00:04,255 INFO L130 PetriNetUnfolder]: 211/1816 cut-off events. [2023-01-28 00:00:04,256 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:00:04,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2552 conditions, 1816 events. 211/1816 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7003 event pairs, 0 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2445. Up to 72 conditions per place. [2023-01-28 00:00:05,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 1798160 [2023-01-28 00:00:19,123 INFO L134 LiptonReduction]: Checked pairs total: 3233201 [2023-01-28 00:00:19,124 INFO L136 LiptonReduction]: Total number of compositions: 1308 [2023-01-28 00:00:19,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:00:19,126 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:00:19,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:00:19,226 INFO L130 PetriNetUnfolder]: 68/522 cut-off events. [2023-01-28 00:00:19,226 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:00:19,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:00:19,226 INFO L208 CegarLoopForPetriNet]: trace histogram [36, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:00:19,226 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:00:19,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:00:19,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1540598542, now seen corresponding path program 1 times [2023-01-28 00:00:19,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:00:19,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285693900] [2023-01-28 00:00:19,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:00:19,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:00:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:19,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:00:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:19,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:00:19,323 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:00:19,323 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:00:19,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-01-28 00:00:19,323 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:00:19,323 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:00:19,323 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:00:19,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-01-28 00:00:19,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:00:19,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:20,543 INFO L130 PetriNetUnfolder]: 217/1867 cut-off events. [2023-01-28 00:00:20,543 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:00:20,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 1867 events. 217/1867 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7155 event pairs, 0 based on Foata normal form. 0/1577 useless extension candidates. Maximal degree in co-relation 2534. Up to 74 conditions per place. [2023-01-28 00:00:20,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:20,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:20,636 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:00:20,636 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:20,637 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:20,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1329 places, 1437 transitions, 4314 flow [2023-01-28 00:00:21,662 INFO L130 PetriNetUnfolder]: 217/1867 cut-off events. [2023-01-28 00:00:21,663 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:00:21,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 1867 events. 217/1867 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7155 event pairs, 0 based on Foata normal form. 0/1577 useless extension candidates. Maximal degree in co-relation 2534. Up to 74 conditions per place. [2023-01-28 00:00:22,052 INFO L119 LiptonReduction]: Number of co-enabled transitions 1902888 [2023-01-28 00:00:38,349 INFO L134 LiptonReduction]: Checked pairs total: 3475092 [2023-01-28 00:00:38,351 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-01-28 00:00:38,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:00:38,353 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:00:38,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:00:38,454 INFO L130 PetriNetUnfolder]: 70/537 cut-off events. [2023-01-28 00:00:38,455 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:00:38,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:00:38,455 INFO L208 CegarLoopForPetriNet]: trace histogram [37, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:00:38,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:00:38,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:00:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1590794513, now seen corresponding path program 1 times [2023-01-28 00:00:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:00:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855783769] [2023-01-28 00:00:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:00:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:00:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:38,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:00:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:38,605 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:00:38,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:00:38,605 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:00:38,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-01-28 00:00:38,605 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:00:38,606 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:00:38,606 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:00:38,606 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-01-28 00:00:38,759 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:00:38,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:39,968 INFO L130 PetriNetUnfolder]: 223/1918 cut-off events. [2023-01-28 00:00:39,968 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:00:40,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2733 conditions, 1918 events. 223/1918 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7357 event pairs, 0 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 2624. Up to 76 conditions per place. [2023-01-28 00:00:40,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:40,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:40,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:00:40,234 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:40,234 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:40,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1365 places, 1476 transitions, 4469 flow [2023-01-28 00:00:41,501 INFO L130 PetriNetUnfolder]: 223/1918 cut-off events. [2023-01-28 00:00:41,501 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:00:41,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2733 conditions, 1918 events. 223/1918 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7357 event pairs, 0 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 2624. Up to 76 conditions per place. [2023-01-28 00:00:41,925 INFO L119 LiptonReduction]: Number of co-enabled transitions 2010580 [2023-01-28 00:00:57,956 INFO L134 LiptonReduction]: Checked pairs total: 3614609 [2023-01-28 00:00:57,957 INFO L136 LiptonReduction]: Total number of compositions: 1392 [2023-01-28 00:00:57,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:00:57,959 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:00:57,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:00:58,068 INFO L130 PetriNetUnfolder]: 72/552 cut-off events. [2023-01-28 00:00:58,069 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:00:58,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:00:58,069 INFO L208 CegarLoopForPetriNet]: trace histogram [38, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:00:58,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:00:58,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:00:58,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1272164322, now seen corresponding path program 1 times [2023-01-28 00:00:58,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:00:58,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087068831] [2023-01-28 00:00:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:00:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:00:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:58,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:00:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:00:58,162 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:00:58,163 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:00:58,163 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:00:58,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-01-28 00:00:58,163 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:00:58,164 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:00:58,164 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:00:58,164 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-01-28 00:00:58,251 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:00:58,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:00:59,582 INFO L130 PetriNetUnfolder]: 229/1969 cut-off events. [2023-01-28 00:00:59,583 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:00:59,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2825 conditions, 1969 events. 229/1969 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7534 event pairs, 0 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2715. Up to 78 conditions per place. [2023-01-28 00:00:59,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:00:59,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:00:59,714 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:00:59,714 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:00:59,714 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:00:59,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1401 places, 1515 transitions, 4626 flow [2023-01-28 00:01:00,921 INFO L130 PetriNetUnfolder]: 229/1969 cut-off events. [2023-01-28 00:01:00,921 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:01:01,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2825 conditions, 1969 events. 229/1969 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7534 event pairs, 0 based on Foata normal form. 0/1663 useless extension candidates. Maximal degree in co-relation 2715. Up to 78 conditions per place. [2023-01-28 00:01:01,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 2121236 [2023-01-28 00:01:17,558 INFO L134 LiptonReduction]: Checked pairs total: 3855568 [2023-01-28 00:01:17,559 INFO L136 LiptonReduction]: Total number of compositions: 1429 [2023-01-28 00:01:17,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:01:17,561 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:01:17,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:01:17,675 INFO L130 PetriNetUnfolder]: 75/570 cut-off events. [2023-01-28 00:01:17,675 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:01:17,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:01:17,675 INFO L208 CegarLoopForPetriNet]: trace histogram [39, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:01:17,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:01:17,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:01:17,675 INFO L85 PathProgramCache]: Analyzing trace with hash 298786369, now seen corresponding path program 1 times [2023-01-28 00:01:17,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:01:17,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983235640] [2023-01-28 00:01:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:01:17,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:01:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:17,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:01:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:17,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:01:17,777 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:01:17,777 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:01:17,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-01-28 00:01:17,778 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:01:17,778 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:01:17,778 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:01:17,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-01-28 00:01:17,877 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:01:17,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:19,124 INFO L130 PetriNetUnfolder]: 235/2020 cut-off events. [2023-01-28 00:01:19,124 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:01:19,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 2020 events. 235/2020 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7837 event pairs, 0 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 2807. Up to 80 conditions per place. [2023-01-28 00:01:19,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:19,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:19,333 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:01:19,333 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:19,333 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:19,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1437 places, 1554 transitions, 4785 flow [2023-01-28 00:01:20,576 INFO L130 PetriNetUnfolder]: 235/2020 cut-off events. [2023-01-28 00:01:20,576 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:01:20,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 2020 events. 235/2020 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7837 event pairs, 0 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 2807. Up to 80 conditions per place. [2023-01-28 00:01:21,157 INFO L119 LiptonReduction]: Number of co-enabled transitions 2234856 [2023-01-28 00:01:38,232 INFO L134 LiptonReduction]: Checked pairs total: 4129516 [2023-01-28 00:01:38,233 INFO L136 LiptonReduction]: Total number of compositions: 1460 [2023-01-28 00:01:38,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:01:38,234 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:01:38,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:01:38,356 INFO L130 PetriNetUnfolder]: 76/582 cut-off events. [2023-01-28 00:01:38,356 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:01:38,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:01:38,356 INFO L208 CegarLoopForPetriNet]: trace histogram [40, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:01:38,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:01:38,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:01:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -441586444, now seen corresponding path program 1 times [2023-01-28 00:01:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:01:38,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131575618] [2023-01-28 00:01:38,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:01:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:01:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:38,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:01:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:38,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:01:38,458 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:01:38,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:01:38,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-01-28 00:01:38,459 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:01:38,459 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:01:38,459 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:01:38,459 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-01-28 00:01:38,549 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:01:38,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:40,102 INFO L130 PetriNetUnfolder]: 241/2071 cut-off events. [2023-01-28 00:01:40,102 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:01:40,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3012 conditions, 2071 events. 241/2071 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7964 event pairs, 0 based on Foata normal form. 0/1749 useless extension candidates. Maximal degree in co-relation 2900. Up to 82 conditions per place. [2023-01-28 00:01:40,194 INFO L82 GeneralOperation]: Start removeDead. Operand has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:40,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:40,225 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:01:40,226 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:40,226 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:40,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1473 places, 1593 transitions, 4946 flow [2023-01-28 00:01:41,667 INFO L130 PetriNetUnfolder]: 241/2071 cut-off events. [2023-01-28 00:01:41,671 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:01:41,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3012 conditions, 2071 events. 241/2071 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 7964 event pairs, 0 based on Foata normal form. 0/1749 useless extension candidates. Maximal degree in co-relation 2900. Up to 82 conditions per place. [2023-01-28 00:01:42,269 INFO L119 LiptonReduction]: Number of co-enabled transitions 2351440 [2023-01-28 00:01:59,063 INFO L134 LiptonReduction]: Checked pairs total: 4297156 [2023-01-28 00:01:59,063 INFO L136 LiptonReduction]: Total number of compositions: 1505 [2023-01-28 00:01:59,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:01:59,065 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:01:59,065 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:01:59,193 INFO L130 PetriNetUnfolder]: 78/597 cut-off events. [2023-01-28 00:01:59,193 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:01:59,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:01:59,193 INFO L208 CegarLoopForPetriNet]: trace histogram [41, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:01:59,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:01:59,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:01:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1533099000, now seen corresponding path program 1 times [2023-01-28 00:01:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:01:59,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278345803] [2023-01-28 00:01:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:01:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:01:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:59,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:01:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:01:59,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:01:59,290 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:01:59,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:01:59,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-01-28 00:01:59,290 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:01:59,290 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:01:59,290 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:01:59,290 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-01-28 00:01:59,507 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:01:59,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:01,033 INFO L130 PetriNetUnfolder]: 247/2122 cut-off events. [2023-01-28 00:02:01,033 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:02:01,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 2122 events. 247/2122 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8140 event pairs, 0 based on Foata normal form. 0/1792 useless extension candidates. Maximal degree in co-relation 2994. Up to 84 conditions per place. [2023-01-28 00:02:01,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:01,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:01,188 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:02:01,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:01,188 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:01,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1509 places, 1632 transitions, 5109 flow [2023-01-28 00:02:02,606 INFO L130 PetriNetUnfolder]: 247/2122 cut-off events. [2023-01-28 00:02:02,607 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:02:02,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 2122 events. 247/2122 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8140 event pairs, 0 based on Foata normal form. 0/1792 useless extension candidates. Maximal degree in co-relation 2994. Up to 84 conditions per place. [2023-01-28 00:02:03,292 INFO L119 LiptonReduction]: Number of co-enabled transitions 2470988 [2023-01-28 00:02:19,599 INFO L134 LiptonReduction]: Checked pairs total: 4513781 [2023-01-28 00:02:19,615 INFO L136 LiptonReduction]: Total number of compositions: 1534 [2023-01-28 00:02:19,618 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:02:19,618 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:02:19,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:02:19,805 INFO L130 PetriNetUnfolder]: 80/612 cut-off events. [2023-01-28 00:02:19,805 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:02:19,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:02:19,805 INFO L208 CegarLoopForPetriNet]: trace histogram [42, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:02:19,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:02:19,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:02:19,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1127682937, now seen corresponding path program 1 times [2023-01-28 00:02:19,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:02:19,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793099295] [2023-01-28 00:02:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:02:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:02:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:02:19,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:02:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:02:19,947 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:02:19,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:02:19,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:02:19,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-01-28 00:02:19,948 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:02:19,948 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:02:19,948 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:02:19,948 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-01-28 00:02:20,055 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:02:20,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:21,447 INFO L130 PetriNetUnfolder]: 253/2173 cut-off events. [2023-01-28 00:02:21,448 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:02:21,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3203 conditions, 2173 events. 253/2173 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8364 event pairs, 0 based on Foata normal form. 0/1835 useless extension candidates. Maximal degree in co-relation 3089. Up to 86 conditions per place. [2023-01-28 00:02:21,576 INFO L82 GeneralOperation]: Start removeDead. Operand has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:21,622 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:21,622 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:02:21,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:21,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:21,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1545 places, 1671 transitions, 5274 flow [2023-01-28 00:02:23,230 INFO L130 PetriNetUnfolder]: 253/2173 cut-off events. [2023-01-28 00:02:23,230 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:02:23,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3203 conditions, 2173 events. 253/2173 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8364 event pairs, 0 based on Foata normal form. 0/1835 useless extension candidates. Maximal degree in co-relation 3089. Up to 86 conditions per place. [2023-01-28 00:02:24,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 2593500 [2023-01-28 00:02:41,410 INFO L134 LiptonReduction]: Checked pairs total: 4704317 [2023-01-28 00:02:41,411 INFO L136 LiptonReduction]: Total number of compositions: 1586 [2023-01-28 00:02:41,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:02:41,412 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:02:41,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:02:41,557 INFO L130 PetriNetUnfolder]: 82/627 cut-off events. [2023-01-28 00:02:41,557 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:02:41,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:02:41,558 INFO L208 CegarLoopForPetriNet]: trace histogram [43, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:02:41,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:02:41,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:02:41,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2049068477, now seen corresponding path program 1 times [2023-01-28 00:02:41,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:02:41,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048798395] [2023-01-28 00:02:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:02:41,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:02:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:02:41,612 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:02:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:02:41,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:02:41,667 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:02:41,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:02:41,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-01-28 00:02:41,668 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:02:41,668 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:02:41,668 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:02:41,668 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-01-28 00:02:41,900 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:02:41,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:43,986 INFO L130 PetriNetUnfolder]: 259/2224 cut-off events. [2023-01-28 00:02:43,986 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:02:44,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3300 conditions, 2224 events. 259/2224 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8557 event pairs, 0 based on Foata normal form. 0/1878 useless extension candidates. Maximal degree in co-relation 3185. Up to 88 conditions per place. [2023-01-28 00:02:44,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:44,137 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:44,137 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:02:44,137 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:44,138 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:44,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1581 places, 1710 transitions, 5441 flow [2023-01-28 00:02:46,124 INFO L130 PetriNetUnfolder]: 259/2224 cut-off events. [2023-01-28 00:02:46,125 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:02:46,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3300 conditions, 2224 events. 259/2224 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8557 event pairs, 0 based on Foata normal form. 0/1878 useless extension candidates. Maximal degree in co-relation 3185. Up to 88 conditions per place. [2023-01-28 00:02:47,081 INFO L119 LiptonReduction]: Number of co-enabled transitions 2718976 [2023-01-28 00:03:06,781 INFO L134 LiptonReduction]: Checked pairs total: 4895126 [2023-01-28 00:03:06,782 INFO L136 LiptonReduction]: Total number of compositions: 1601 [2023-01-28 00:03:06,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:03:06,784 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:03:06,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:03:06,934 INFO L130 PetriNetUnfolder]: 84/642 cut-off events. [2023-01-28 00:03:06,934 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:03:06,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:03:06,934 INFO L208 CegarLoopForPetriNet]: trace histogram [44, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:03:06,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:03:06,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:03:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1199268285, now seen corresponding path program 1 times [2023-01-28 00:03:06,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:03:06,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948552911] [2023-01-28 00:03:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:03:06,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:03:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:07,001 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:03:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:07,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:03:07,051 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:03:07,051 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:03:07,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-01-28 00:03:07,051 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:03:07,052 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:03:07,052 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:03:07,052 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-01-28 00:03:07,149 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:03:07,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:09,007 INFO L130 PetriNetUnfolder]: 265/2275 cut-off events. [2023-01-28 00:03:09,008 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:03:09,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3398 conditions, 2275 events. 265/2275 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8866 event pairs, 0 based on Foata normal form. 0/1921 useless extension candidates. Maximal degree in co-relation 3282. Up to 90 conditions per place. [2023-01-28 00:03:09,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:09,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:09,167 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:03:09,168 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:09,168 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:09,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1617 places, 1749 transitions, 5610 flow [2023-01-28 00:03:10,744 INFO L130 PetriNetUnfolder]: 265/2275 cut-off events. [2023-01-28 00:03:10,745 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:03:10,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3398 conditions, 2275 events. 265/2275 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8866 event pairs, 0 based on Foata normal form. 0/1921 useless extension candidates. Maximal degree in co-relation 3282. Up to 90 conditions per place. [2023-01-28 00:03:11,517 INFO L119 LiptonReduction]: Number of co-enabled transitions 2847416 [2023-01-28 00:03:30,685 INFO L134 LiptonReduction]: Checked pairs total: 5139393 [2023-01-28 00:03:30,685 INFO L136 LiptonReduction]: Total number of compositions: 1645 [2023-01-28 00:03:30,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:03:30,687 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:03:30,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:03:30,906 INFO L130 PetriNetUnfolder]: 86/657 cut-off events. [2023-01-28 00:03:30,906 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:03:30,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:03:30,907 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:03:30,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:03:30,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:03:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1486726727, now seen corresponding path program 1 times [2023-01-28 00:03:30,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:03:30,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101243581] [2023-01-28 00:03:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:03:30,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:03:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:31,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:03:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:31,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:03:31,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:03:31,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:03:31,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-01-28 00:03:31,153 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:03:31,153 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:03:31,153 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:03:31,153 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-01-28 00:03:31,375 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:03:31,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:33,628 INFO L130 PetriNetUnfolder]: 271/2326 cut-off events. [2023-01-28 00:03:33,628 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:03:33,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3497 conditions, 2326 events. 271/2326 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8948 event pairs, 0 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 3380. Up to 92 conditions per place. [2023-01-28 00:03:33,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:33,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:33,801 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:03:33,801 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:33,801 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:33,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1653 places, 1788 transitions, 5781 flow [2023-01-28 00:03:35,480 INFO L130 PetriNetUnfolder]: 271/2326 cut-off events. [2023-01-28 00:03:35,481 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:03:35,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3497 conditions, 2326 events. 271/2326 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 8948 event pairs, 0 based on Foata normal form. 0/1964 useless extension candidates. Maximal degree in co-relation 3380. Up to 92 conditions per place. [2023-01-28 00:03:36,253 INFO L119 LiptonReduction]: Number of co-enabled transitions 2978820 [2023-01-28 00:03:54,759 INFO L134 LiptonReduction]: Checked pairs total: 5527759 [2023-01-28 00:03:54,759 INFO L136 LiptonReduction]: Total number of compositions: 1673 [2023-01-28 00:03:54,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:03:54,761 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:03:54,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:03:54,974 INFO L130 PetriNetUnfolder]: 89/675 cut-off events. [2023-01-28 00:03:54,975 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:03:54,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:03:54,975 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:03:54,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:03:54,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:03:54,975 INFO L85 PathProgramCache]: Analyzing trace with hash -42648107, now seen corresponding path program 1 times [2023-01-28 00:03:54,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:03:54,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504174642] [2023-01-28 00:03:54,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:03:54,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:03:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:55,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:03:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:03:55,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:03:55,094 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:03:55,094 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:03:55,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-01-28 00:03:55,094 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:03:55,094 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:03:55,094 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:03:55,094 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-01-28 00:03:55,196 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:03:55,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:57,091 INFO L130 PetriNetUnfolder]: 277/2377 cut-off events. [2023-01-28 00:03:57,091 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:03:57,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 2377 events. 277/2377 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9139 event pairs, 0 based on Foata normal form. 0/2007 useless extension candidates. Maximal degree in co-relation 3479. Up to 94 conditions per place. [2023-01-28 00:03:57,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:57,256 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:57,256 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:03:57,256 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:57,256 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:57,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1689 places, 1827 transitions, 5954 flow [2023-01-28 00:03:59,006 INFO L130 PetriNetUnfolder]: 277/2377 cut-off events. [2023-01-28 00:03:59,006 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:03:59,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 2377 events. 277/2377 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9139 event pairs, 0 based on Foata normal form. 0/2007 useless extension candidates. Maximal degree in co-relation 3479. Up to 94 conditions per place. [2023-01-28 00:03:59,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 3113188 [2023-01-28 00:04:18,981 INFO L134 LiptonReduction]: Checked pairs total: 6176231 [2023-01-28 00:04:18,981 INFO L136 LiptonReduction]: Total number of compositions: 1730 [2023-01-28 00:04:18,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:04:18,983 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:04:18,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:04:19,141 INFO L130 PetriNetUnfolder]: 90/687 cut-off events. [2023-01-28 00:04:19,141 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:04:19,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:04:19,141 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:04:19,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:04:19,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:04:19,142 INFO L85 PathProgramCache]: Analyzing trace with hash 512867074, now seen corresponding path program 1 times [2023-01-28 00:04:19,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:04:19,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877270937] [2023-01-28 00:04:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:04:19,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:04:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:04:19,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:04:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:04:19,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:04:19,291 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:04:19,291 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:04:19,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-01-28 00:04:19,292 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:04:19,292 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:04:19,292 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:04:19,292 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-01-28 00:04:19,394 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:04:19,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:21,248 INFO L130 PetriNetUnfolder]: 283/2428 cut-off events. [2023-01-28 00:04:21,248 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:04:21,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3698 conditions, 2428 events. 283/2428 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9318 event pairs, 0 based on Foata normal form. 0/2050 useless extension candidates. Maximal degree in co-relation 3579. Up to 96 conditions per place. [2023-01-28 00:04:21,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:21,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:21,428 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:04:21,428 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:21,428 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:21,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1725 places, 1866 transitions, 6129 flow [2023-01-28 00:04:23,287 INFO L130 PetriNetUnfolder]: 283/2428 cut-off events. [2023-01-28 00:04:23,287 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:04:23,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3698 conditions, 2428 events. 283/2428 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9318 event pairs, 0 based on Foata normal form. 0/2050 useless extension candidates. Maximal degree in co-relation 3579. Up to 96 conditions per place. [2023-01-28 00:04:24,167 INFO L119 LiptonReduction]: Number of co-enabled transitions 3250520 [2023-01-28 00:04:46,327 INFO L134 LiptonReduction]: Checked pairs total: 6088471 [2023-01-28 00:04:46,328 INFO L136 LiptonReduction]: Total number of compositions: 1760 [2023-01-28 00:04:46,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:04:46,329 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:04:46,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:04:46,521 INFO L130 PetriNetUnfolder]: 93/705 cut-off events. [2023-01-28 00:04:46,521 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:04:46,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:04:46,521 INFO L208 CegarLoopForPetriNet]: trace histogram [48, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:04:46,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:04:46,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:04:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1160904187, now seen corresponding path program 1 times [2023-01-28 00:04:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:04:46,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604027272] [2023-01-28 00:04:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:04:46,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:04:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:04:46,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:04:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:04:46,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:04:46,718 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:04:46,718 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:04:46,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-01-28 00:04:46,719 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:04:46,719 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:04:46,719 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:04:46,719 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2023-01-28 00:04:46,970 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:04:46,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:48,990 INFO L130 PetriNetUnfolder]: 289/2479 cut-off events. [2023-01-28 00:04:48,991 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:04:49,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3800 conditions, 2479 events. 289/2479 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9528 event pairs, 0 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3680. Up to 98 conditions per place. [2023-01-28 00:04:49,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:49,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:49,173 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:04:49,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:49,174 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:49,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1761 places, 1905 transitions, 6306 flow [2023-01-28 00:04:51,015 INFO L130 PetriNetUnfolder]: 289/2479 cut-off events. [2023-01-28 00:04:51,015 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:04:51,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3800 conditions, 2479 events. 289/2479 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9528 event pairs, 0 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3680. Up to 98 conditions per place. [2023-01-28 00:04:51,901 INFO L119 LiptonReduction]: Number of co-enabled transitions 3390816 [2023-01-28 00:05:12,965 INFO L134 LiptonReduction]: Checked pairs total: 6284470 [2023-01-28 00:05:12,966 INFO L136 LiptonReduction]: Total number of compositions: 1796 [2023-01-28 00:05:12,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:05:12,968 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:05:12,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:05:13,151 INFO L130 PetriNetUnfolder]: 95/720 cut-off events. [2023-01-28 00:05:13,152 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:05:13,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:05:13,152 INFO L208 CegarLoopForPetriNet]: trace histogram [49, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:05:13,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:05:13,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:05:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1226920446, now seen corresponding path program 1 times [2023-01-28 00:05:13,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:05:13,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176905631] [2023-01-28 00:05:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:05:13,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:05:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:05:13,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:05:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:05:13,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:05:13,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:05:13,338 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:05:13,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-01-28 00:05:13,339 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:05:13,339 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:05:13,339 WARN L233 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:05:13,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2023-01-28 00:05:13,461 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:05:13,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:15,794 INFO L130 PetriNetUnfolder]: 295/2530 cut-off events. [2023-01-28 00:05:15,794 INFO L131 PetriNetUnfolder]: For 20776/20776 co-relation queries the response was YES. [2023-01-28 00:05:15,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3903 conditions, 2530 events. 295/2530 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9740 event pairs, 0 based on Foata normal form. 0/2136 useless extension candidates. Maximal degree in co-relation 3782. Up to 100 conditions per place. [2023-01-28 00:05:15,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:15,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:15,996 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:05:15,996 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:15,996 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:15,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1797 places, 1944 transitions, 6485 flow [2023-01-28 00:05:18,366 INFO L130 PetriNetUnfolder]: 295/2530 cut-off events. [2023-01-28 00:05:18,366 INFO L131 PetriNetUnfolder]: For 20776/20776 co-relation queries the response was YES. [2023-01-28 00:05:18,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3903 conditions, 2530 events. 295/2530 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9740 event pairs, 0 based on Foata normal form. 0/2136 useless extension candidates. Maximal degree in co-relation 3782. Up to 100 conditions per place. [2023-01-28 00:05:19,448 INFO L119 LiptonReduction]: Number of co-enabled transitions 3534076 [2023-01-28 00:05:43,651 INFO L134 LiptonReduction]: Checked pairs total: 6508277 [2023-01-28 00:05:43,652 INFO L136 LiptonReduction]: Total number of compositions: 1836 [2023-01-28 00:05:43,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:05:43,653 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:05:43,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:05:43,842 INFO L130 PetriNetUnfolder]: 97/735 cut-off events. [2023-01-28 00:05:43,842 INFO L131 PetriNetUnfolder]: For 20776/20776 co-relation queries the response was YES. [2023-01-28 00:05:43,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:05:43,843 INFO L208 CegarLoopForPetriNet]: trace histogram [50, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:05:43,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:05:43,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:05:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash 119381064, now seen corresponding path program 1 times [2023-01-28 00:05:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:05:43,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251881898] [2023-01-28 00:05:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:05:43,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:05:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:05:43,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:05:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:05:43,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:05:43,991 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:05:43,991 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:05:43,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-01-28 00:05:43,991 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:05:43,991 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:05:43,992 WARN L233 ceAbstractionStarter]: 49 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:05:43,992 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 50 thread instances. [2023-01-28 00:05:44,148 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:05:44,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:46,253 INFO L130 PetriNetUnfolder]: 301/2581 cut-off events. [2023-01-28 00:05:46,254 INFO L131 PetriNetUnfolder]: For 22050/22050 co-relation queries the response was YES. [2023-01-28 00:05:46,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 2581 events. 301/2581 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9952 event pairs, 0 based on Foata normal form. 0/2179 useless extension candidates. Maximal degree in co-relation 3885. Up to 102 conditions per place. [2023-01-28 00:05:46,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:46,479 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:46,479 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:05:46,479 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:46,479 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:46,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1833 places, 1983 transitions, 6666 flow [2023-01-28 00:05:48,695 INFO L130 PetriNetUnfolder]: 301/2581 cut-off events. [2023-01-28 00:05:48,695 INFO L131 PetriNetUnfolder]: For 22050/22050 co-relation queries the response was YES. [2023-01-28 00:05:48,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 2581 events. 301/2581 cut-off events. For 22050/22050 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 9952 event pairs, 0 based on Foata normal form. 0/2179 useless extension candidates. Maximal degree in co-relation 3885. Up to 102 conditions per place. [2023-01-28 00:05:49,904 INFO L119 LiptonReduction]: Number of co-enabled transitions 3680300 [2023-01-28 00:06:15,384 INFO L134 LiptonReduction]: Checked pairs total: 6824813 [2023-01-28 00:06:15,384 INFO L136 LiptonReduction]: Total number of compositions: 1873 [2023-01-28 00:06:15,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:06:15,386 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:06:15,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:06:15,590 INFO L130 PetriNetUnfolder]: 99/750 cut-off events. [2023-01-28 00:06:15,590 INFO L131 PetriNetUnfolder]: For 22050/22050 co-relation queries the response was YES. [2023-01-28 00:06:15,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:06:15,590 INFO L208 CegarLoopForPetriNet]: trace histogram [51, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:06:15,590 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:06:15,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:06:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash -188189013, now seen corresponding path program 1 times [2023-01-28 00:06:15,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:06:15,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715570136] [2023-01-28 00:06:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:06:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:06:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:06:15,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:06:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:06:15,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:06:15,850 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:06:15,850 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:06:15,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-01-28 00:06:15,851 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:06:15,851 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:06:15,851 WARN L233 ceAbstractionStarter]: 50 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:06:15,851 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 51 thread instances. [2023-01-28 00:06:15,994 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:06:16,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:18,617 INFO L130 PetriNetUnfolder]: 307/2632 cut-off events. [2023-01-28 00:06:18,617 INFO L131 PetriNetUnfolder]: For 23375/23375 co-relation queries the response was YES. [2023-01-28 00:06:18,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4112 conditions, 2632 events. 307/2632 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10130 event pairs, 0 based on Foata normal form. 0/2222 useless extension candidates. Maximal degree in co-relation 3989. Up to 104 conditions per place. [2023-01-28 00:06:18,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:19,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:19,127 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:06:19,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:19,127 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:19,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1869 places, 2022 transitions, 6849 flow [2023-01-28 00:06:21,932 INFO L130 PetriNetUnfolder]: 307/2632 cut-off events. [2023-01-28 00:06:21,933 INFO L131 PetriNetUnfolder]: For 23375/23375 co-relation queries the response was YES. [2023-01-28 00:06:22,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4112 conditions, 2632 events. 307/2632 cut-off events. For 23375/23375 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10130 event pairs, 0 based on Foata normal form. 0/2222 useless extension candidates. Maximal degree in co-relation 3989. Up to 104 conditions per place. [2023-01-28 00:06:23,012 INFO L119 LiptonReduction]: Number of co-enabled transitions 3829488 [2023-01-28 00:06:49,698 INFO L134 LiptonReduction]: Checked pairs total: 7166665 [2023-01-28 00:06:49,699 INFO L136 LiptonReduction]: Total number of compositions: 1923 [2023-01-28 00:06:49,700 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:06:49,700 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:06:49,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:06:49,983 INFO L130 PetriNetUnfolder]: 101/765 cut-off events. [2023-01-28 00:06:49,983 INFO L131 PetriNetUnfolder]: For 23375/23375 co-relation queries the response was YES. [2023-01-28 00:06:49,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:06:49,983 INFO L208 CegarLoopForPetriNet]: trace histogram [52, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:06:49,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:06:49,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:06:49,985 INFO L85 PathProgramCache]: Analyzing trace with hash 164255542, now seen corresponding path program 1 times [2023-01-28 00:06:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:06:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650020421] [2023-01-28 00:06:49,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:06:49,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:06:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:06:50,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:06:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:06:50,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:06:50,308 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:06:50,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:06:50,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-01-28 00:06:50,308 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:06:50,308 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:06:50,308 WARN L233 ceAbstractionStarter]: 51 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:06:50,308 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 52 thread instances. [2023-01-28 00:06:50,553 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:06:50,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:53,147 INFO L130 PetriNetUnfolder]: 313/2683 cut-off events. [2023-01-28 00:06:53,152 INFO L131 PetriNetUnfolder]: For 24752/24752 co-relation queries the response was YES. [2023-01-28 00:06:53,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4218 conditions, 2683 events. 313/2683 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10359 event pairs, 0 based on Foata normal form. 0/2265 useless extension candidates. Maximal degree in co-relation 4094. Up to 106 conditions per place. [2023-01-28 00:06:53,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:53,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:53,519 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:06:53,519 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:53,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:53,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1905 places, 2061 transitions, 7034 flow [2023-01-28 00:06:56,158 INFO L130 PetriNetUnfolder]: 313/2683 cut-off events. [2023-01-28 00:06:56,158 INFO L131 PetriNetUnfolder]: For 24752/24752 co-relation queries the response was YES. [2023-01-28 00:06:56,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4218 conditions, 2683 events. 313/2683 cut-off events. For 24752/24752 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10359 event pairs, 0 based on Foata normal form. 0/2265 useless extension candidates. Maximal degree in co-relation 4094. Up to 106 conditions per place. [2023-01-28 00:06:57,204 INFO L119 LiptonReduction]: Number of co-enabled transitions 3981640 [2023-01-28 00:07:23,932 INFO L134 LiptonReduction]: Checked pairs total: 7361642 [2023-01-28 00:07:23,933 INFO L136 LiptonReduction]: Total number of compositions: 1933 [2023-01-28 00:07:23,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:23,935 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:23,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:24,157 INFO L130 PetriNetUnfolder]: 103/780 cut-off events. [2023-01-28 00:07:24,157 INFO L131 PetriNetUnfolder]: For 24752/24752 co-relation queries the response was YES. [2023-01-28 00:07:24,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:24,157 INFO L208 CegarLoopForPetriNet]: trace histogram [53, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:07:24,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:24,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:24,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1488334432, now seen corresponding path program 1 times [2023-01-28 00:07:24,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:24,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672300983] [2023-01-28 00:07:24,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:24,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:24,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:24,350 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:24,350 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:24,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-01-28 00:07:24,351 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:24,351 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:24,351 WARN L233 ceAbstractionStarter]: 52 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:24,351 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 53 thread instances. [2023-01-28 00:07:24,576 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:24,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:27,291 INFO L130 PetriNetUnfolder]: 319/2734 cut-off events. [2023-01-28 00:07:27,291 INFO L131 PetriNetUnfolder]: For 26182/26182 co-relation queries the response was YES. [2023-01-28 00:07:27,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 2734 events. 319/2734 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10539 event pairs, 0 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 4200. Up to 108 conditions per place. [2023-01-28 00:07:27,463 INFO L82 GeneralOperation]: Start removeDead. Operand has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:27,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:27,514 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:27,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:27,514 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:27,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1941 places, 2100 transitions, 7221 flow [2023-01-28 00:07:29,956 INFO L130 PetriNetUnfolder]: 319/2734 cut-off events. [2023-01-28 00:07:29,957 INFO L131 PetriNetUnfolder]: For 26182/26182 co-relation queries the response was YES. [2023-01-28 00:07:30,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4325 conditions, 2734 events. 319/2734 cut-off events. For 26182/26182 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10539 event pairs, 0 based on Foata normal form. 0/2308 useless extension candidates. Maximal degree in co-relation 4200. Up to 108 conditions per place. [2023-01-28 00:07:31,076 INFO L119 LiptonReduction]: Number of co-enabled transitions 4136756 [2023-01-28 00:08:00,472 INFO L134 LiptonReduction]: Checked pairs total: 7723653 [2023-01-28 00:08:00,472 INFO L136 LiptonReduction]: Total number of compositions: 1985 [2023-01-28 00:08:00,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:00,477 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:00,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:00,751 INFO L130 PetriNetUnfolder]: 105/795 cut-off events. [2023-01-28 00:08:00,751 INFO L131 PetriNetUnfolder]: For 26182/26182 co-relation queries the response was YES. [2023-01-28 00:08:00,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:00,751 INFO L208 CegarLoopForPetriNet]: trace histogram [54, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:00,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:00,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:00,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1058297875, now seen corresponding path program 1 times [2023-01-28 00:08:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093159481] [2023-01-28 00:08:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:00,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:00,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:00,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:00,892 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:00,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-01-28 00:08:00,892 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:00,892 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:00,892 WARN L233 ceAbstractionStarter]: 53 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:00,892 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 54 thread instances. [2023-01-28 00:08:01,023 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:01,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:03,666 INFO L130 PetriNetUnfolder]: 325/2785 cut-off events. [2023-01-28 00:08:03,667 INFO L131 PetriNetUnfolder]: For 27666/27666 co-relation queries the response was YES. [2023-01-28 00:08:03,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4433 conditions, 2785 events. 325/2785 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10767 event pairs, 0 based on Foata normal form. 0/2351 useless extension candidates. Maximal degree in co-relation 4307. Up to 110 conditions per place. [2023-01-28 00:08:03,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:03,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:03,902 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:03,902 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:03,903 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:03,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1977 places, 2139 transitions, 7410 flow [2023-01-28 00:08:06,546 INFO L130 PetriNetUnfolder]: 325/2785 cut-off events. [2023-01-28 00:08:06,547 INFO L131 PetriNetUnfolder]: For 27666/27666 co-relation queries the response was YES. [2023-01-28 00:08:06,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4433 conditions, 2785 events. 325/2785 cut-off events. For 27666/27666 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 10767 event pairs, 0 based on Foata normal form. 0/2351 useless extension candidates. Maximal degree in co-relation 4307. Up to 110 conditions per place. [2023-01-28 00:08:07,811 INFO L119 LiptonReduction]: Number of co-enabled transitions 4294836 [2023-01-28 00:08:35,053 INFO L134 LiptonReduction]: Checked pairs total: 8097806 [2023-01-28 00:08:35,054 INFO L136 LiptonReduction]: Total number of compositions: 2024 [2023-01-28 00:08:35,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:35,056 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:35,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:35,294 INFO L130 PetriNetUnfolder]: 106/807 cut-off events. [2023-01-28 00:08:35,294 INFO L131 PetriNetUnfolder]: For 27666/27666 co-relation queries the response was YES. [2023-01-28 00:08:35,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:35,294 INFO L208 CegarLoopForPetriNet]: trace histogram [55, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:35,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:35,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash -675520809, now seen corresponding path program 1 times [2023-01-28 00:08:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:35,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869654186] [2023-01-28 00:08:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:35,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:35,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:35,494 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:35,495 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:35,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-01-28 00:08:35,495 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:35,495 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:35,495 WARN L233 ceAbstractionStarter]: 54 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:35,495 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 55 thread instances. [2023-01-28 00:08:35,607 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:35,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:38,486 INFO L130 PetriNetUnfolder]: 331/2836 cut-off events. [2023-01-28 00:08:38,486 INFO L131 PetriNetUnfolder]: For 29205/29205 co-relation queries the response was YES. [2023-01-28 00:08:38,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4542 conditions, 2836 events. 331/2836 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10953 event pairs, 0 based on Foata normal form. 0/2394 useless extension candidates. Maximal degree in co-relation 4415. Up to 112 conditions per place. [2023-01-28 00:08:38,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:38,738 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:38,738 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:38,739 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:38,739 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:38,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2013 places, 2178 transitions, 7601 flow [2023-01-28 00:08:41,634 INFO L130 PetriNetUnfolder]: 331/2836 cut-off events. [2023-01-28 00:08:41,634 INFO L131 PetriNetUnfolder]: For 29205/29205 co-relation queries the response was YES. [2023-01-28 00:08:41,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4542 conditions, 2836 events. 331/2836 cut-off events. For 29205/29205 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10953 event pairs, 0 based on Foata normal form. 0/2394 useless extension candidates. Maximal degree in co-relation 4415. Up to 112 conditions per place. [2023-01-28 00:08:42,808 INFO L119 LiptonReduction]: Number of co-enabled transitions 4455880 [2023-01-28 00:09:10,113 INFO L134 LiptonReduction]: Checked pairs total: 8276701 [2023-01-28 00:09:10,113 INFO L136 LiptonReduction]: Total number of compositions: 2048 [2023-01-28 00:09:10,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:10,115 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:10,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:10,477 INFO L130 PetriNetUnfolder]: 108/822 cut-off events. [2023-01-28 00:09:10,477 INFO L131 PetriNetUnfolder]: For 29205/29205 co-relation queries the response was YES. [2023-01-28 00:09:10,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:10,478 INFO L208 CegarLoopForPetriNet]: trace histogram [56, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:10,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:10,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:10,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1067954573, now seen corresponding path program 1 times [2023-01-28 00:09:10,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:10,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512762552] [2023-01-28 00:09:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:10,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:10,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:10,695 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:10,695 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:10,695 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:10,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-01-28 00:09:10,695 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:10,696 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:10,696 WARN L233 ceAbstractionStarter]: 55 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:10,696 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 56 thread instances. [2023-01-28 00:09:10,850 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:10,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:14,132 INFO L130 PetriNetUnfolder]: 337/2887 cut-off events. [2023-01-28 00:09:14,132 INFO L131 PetriNetUnfolder]: For 30800/30800 co-relation queries the response was YES. [2023-01-28 00:09:14,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 2887 events. 337/2887 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 11165 event pairs, 0 based on Foata normal form. 0/2437 useless extension candidates. Maximal degree in co-relation 4524. Up to 114 conditions per place. [2023-01-28 00:09:14,520 INFO L82 GeneralOperation]: Start removeDead. Operand has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:14,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:14,633 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:14,633 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:14,633 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:14,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2049 places, 2217 transitions, 7794 flow [2023-01-28 00:09:18,365 INFO L130 PetriNetUnfolder]: 337/2887 cut-off events. [2023-01-28 00:09:18,366 INFO L131 PetriNetUnfolder]: For 30800/30800 co-relation queries the response was YES. [2023-01-28 00:09:18,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4652 conditions, 2887 events. 337/2887 cut-off events. For 30800/30800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 11165 event pairs, 0 based on Foata normal form. 0/2437 useless extension candidates. Maximal degree in co-relation 4524. Up to 114 conditions per place. [2023-01-28 00:09:19,648 INFO L119 LiptonReduction]: Number of co-enabled transitions 4619888 [2023-01-28 00:09:49,458 INFO L134 LiptonReduction]: Checked pairs total: 8729270 [2023-01-28 00:09:49,458 INFO L136 LiptonReduction]: Total number of compositions: 2093 [2023-01-28 00:09:49,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:49,460 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;@2e6908bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:49,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:49,789 INFO L130 PetriNetUnfolder]: 110/837 cut-off events. [2023-01-28 00:09:49,789 INFO L131 PetriNetUnfolder]: For 30800/30800 co-relation queries the response was YES. [2023-01-28 00:09:49,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:49,790 INFO L208 CegarLoopForPetriNet]: trace histogram [57, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:49,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:49,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1262117236, now seen corresponding path program 1 times [2023-01-28 00:09:49,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:49,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736366355] [2023-01-28 00:09:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:49,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:49,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:49,941 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:49,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:49,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-01-28 00:09:49,941 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:49,941 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:49,941 WARN L233 ceAbstractionStarter]: 56 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:49,941 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 57 thread instances. [2023-01-28 00:09:50,091 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:50,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2085 places, 2256 transitions, 7989 flow Received shutdown request... [2023-01-28 00:09:52,881 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 00:09:53,046 FATAL L? ?]: A wrapped exception occured: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction threw an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:184) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:129) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) ... 18 more [2023-01-28 00:09:53,049 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:184) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.(PetriNetUnfolder.java:129) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:76) at de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.FinitePrefix.(FinitePrefix.java:64) at de.uni_freiburg.informatik.ultimate.automata.petrinet.operations.RemoveDead.(RemoveDead.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriInitialAbstractionProvider.getInitialAbstraction(PetriInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-28 00:09:53,082 INFO L158 Benchmark]: Toolchain (without parser) took 853612.92ms. Allocated memory was 352.3MB in the beginning and 12.1GB in the end (delta: 11.8GB). Free memory was 320.5MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2023-01-28 00:09:53,082 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:09:53,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.07ms. Allocated memory is still 352.3MB. Free memory was 320.1MB in the beginning and 300.8MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 00:09:53,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.19ms. Allocated memory is still 352.3MB. Free memory was 300.8MB in the beginning and 298.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:09:53,082 INFO L158 Benchmark]: Boogie Preprocessor took 17.14ms. Allocated memory is still 352.3MB. Free memory was 298.7MB in the beginning and 297.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:09:53,082 INFO L158 Benchmark]: RCFGBuilder took 305.45ms. Allocated memory is still 352.3MB. Free memory was 297.3MB in the beginning and 282.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 00:09:53,083 INFO L158 Benchmark]: TraceAbstraction took 852959.14ms. Allocated memory was 352.3MB in the beginning and 12.1GB in the end (delta: 11.8GB). Free memory was 281.9MB in the beginning and 3.5GB in the end (delta: -3.2GB). Peak memory consumption was 9.2GB. Max. memory is 16.0GB. [2023-01-28 00:09:53,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 255.9MB. Free memory is still 213.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 287.07ms. Allocated memory is still 352.3MB. Free memory was 320.1MB in the beginning and 300.8MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.19ms. Allocated memory is still 352.3MB. Free memory was 300.8MB in the beginning and 298.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 17.14ms. Allocated memory is still 352.3MB. Free memory was 298.7MB in the beginning and 297.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 305.45ms. Allocated memory is still 352.3MB. Free memory was 297.3MB in the beginning and 282.4MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 852959.14ms. Allocated memory was 352.3MB in the beginning and 12.1GB in the end (delta: 11.8GB). Free memory was 281.9MB in the beginning and 3.5GB in the end (delta: -3.2GB). 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: 1.9s, 69 PlacesBefore, 12 PlacesAfterwards, 72 TransitionsBefore, 10 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 5 ChoiceCompositions, 77 TotalNumberOfCompositions, 1018 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 917, independent: 899, independent conditional: 0, independent unconditional: 899, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 535, independent: 528, independent conditional: 0, independent unconditional: 528, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 917, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 535, unknown conditional: 0, unknown unconditional: 535] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 105 PlacesBefore, 29 PlacesAfterwards, 111 TransitionsBefore, 28 TransitionsAfterwards, 4940 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 7 ChoiceCompositions, 101 TotalNumberOfCompositions, 8290 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5654, independent: 5491, independent conditional: 0, independent unconditional: 5491, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2827, independent: 2802, independent conditional: 0, independent unconditional: 2802, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5654, independent: 2689, independent conditional: 0, independent unconditional: 2689, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 2827, unknown conditional: 0, unknown unconditional: 2827] , Statistics on independence cache: Total cache size (in pairs): 106, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 141 PlacesBefore, 40 PlacesAfterwards, 150 TransitionsBefore, 39 TransitionsAfterwards, 11856 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 10 ChoiceCompositions, 135 TotalNumberOfCompositions, 20053 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12855, independent: 12591, independent conditional: 0, independent unconditional: 12591, dependent: 264, dependent conditional: 0, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6514, independent: 6478, independent conditional: 0, independent unconditional: 6478, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12855, independent: 6113, independent conditional: 0, independent unconditional: 6113, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 6514, unknown conditional: 0, unknown unconditional: 6514] , Statistics on independence cache: Total cache size (in pairs): 247, Positive cache size: 229, Positive conditional cache size: 0, Positive unconditional cache size: 229, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 177 PlacesBefore, 51 PlacesAfterwards, 189 TransitionsBefore, 50 TransitionsAfterwards, 21736 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 13 ChoiceCompositions, 173 TotalNumberOfCompositions, 38018 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20166, independent: 19813, independent conditional: 0, independent unconditional: 19813, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11750, independent: 11707, independent conditional: 0, independent unconditional: 11707, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20166, independent: 8106, independent conditional: 0, independent unconditional: 8106, dependent: 310, dependent conditional: 0, dependent unconditional: 310, unknown: 11750, unknown conditional: 0, unknown unconditional: 11750] , Statistics on independence cache: Total cache size (in pairs): 363, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 213 PlacesBefore, 62 PlacesAfterwards, 228 TransitionsBefore, 61 TransitionsAfterwards, 34580 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 134 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 48 ConcurrentYvCompositions, 16 ChoiceCompositions, 217 TotalNumberOfCompositions, 63328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31277, independent: 30826, independent conditional: 0, independent unconditional: 30826, dependent: 451, dependent conditional: 0, dependent unconditional: 451, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 18398, independent: 18340, independent conditional: 0, independent unconditional: 18340, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31277, independent: 12486, independent conditional: 0, independent unconditional: 12486, dependent: 393, dependent conditional: 0, dependent unconditional: 393, unknown: 18398, unknown conditional: 0, unknown unconditional: 18398] , Statistics on independence cache: Total cache size (in pairs): 415, Positive cache size: 387, Positive conditional cache size: 0, Positive unconditional cache size: 387, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 249 PlacesBefore, 73 PlacesAfterwards, 267 TransitionsBefore, 72 TransitionsAfterwards, 50388 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 157 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 59 ConcurrentYvCompositions, 19 ChoiceCompositions, 254 TotalNumberOfCompositions, 93497 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46312, independent: 45771, independent conditional: 0, independent unconditional: 45771, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 27153, independent: 27092, independent conditional: 0, independent unconditional: 27092, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 46312, independent: 18679, independent conditional: 0, independent unconditional: 18679, dependent: 480, dependent conditional: 0, dependent unconditional: 480, unknown: 27153, unknown conditional: 0, unknown unconditional: 27153] , Statistics on independence cache: Total cache size (in pairs): 608, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 285 PlacesBefore, 84 PlacesAfterwards, 306 TransitionsBefore, 83 TransitionsAfterwards, 69160 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 188 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 22 ChoiceCompositions, 294 TotalNumberOfCompositions, 129022 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58526, independent: 57896, independent conditional: 0, independent unconditional: 57896, dependent: 630, dependent conditional: 0, dependent unconditional: 630, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 36730, independent: 36661, independent conditional: 0, independent unconditional: 36661, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 58526, independent: 21235, independent conditional: 0, independent unconditional: 21235, dependent: 561, dependent conditional: 0, dependent unconditional: 561, unknown: 36730, unknown conditional: 0, unknown unconditional: 36730] , Statistics on independence cache: Total cache size (in pairs): 615, Positive cache size: 576, Positive conditional cache size: 0, Positive unconditional cache size: 576, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 321 PlacesBefore, 95 PlacesAfterwards, 345 TransitionsBefore, 94 TransitionsAfterwards, 90896 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 205 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 74 ConcurrentYvCompositions, 25 ChoiceCompositions, 323 TotalNumberOfCompositions, 166167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80057, independent: 79341, independent conditional: 0, independent unconditional: 79341, dependent: 716, dependent conditional: 0, dependent unconditional: 716, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48580, independent: 48501, independent conditional: 0, independent unconditional: 48501, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80057, independent: 30840, independent conditional: 0, independent unconditional: 30840, dependent: 637, dependent conditional: 0, dependent unconditional: 637, unknown: 48580, unknown conditional: 0, unknown unconditional: 48580] , Statistics on independence cache: Total cache size (in pairs): 1051, Positive cache size: 1006, Positive conditional cache size: 0, Positive unconditional cache size: 1006, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 357 PlacesBefore, 106 PlacesAfterwards, 384 TransitionsBefore, 105 TransitionsAfterwards, 115596 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 226 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 84 ConcurrentYvCompositions, 28 ChoiceCompositions, 357 TotalNumberOfCompositions, 224834 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 97367, independent: 96438, independent conditional: 0, independent unconditional: 96438, dependent: 929, dependent conditional: 0, dependent unconditional: 929, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 60674, independent: 60585, independent conditional: 0, independent unconditional: 60585, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 97367, independent: 35853, independent conditional: 0, independent unconditional: 35853, dependent: 840, dependent conditional: 0, dependent unconditional: 840, unknown: 60674, unknown conditional: 0, unknown unconditional: 60674] , Statistics on independence cache: Total cache size (in pairs): 895, Positive cache size: 843, Positive conditional cache size: 0, Positive unconditional cache size: 843, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 393 PlacesBefore, 117 PlacesAfterwards, 423 TransitionsBefore, 116 TransitionsAfterwards, 143260 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 253 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 100 ConcurrentYvCompositions, 31 ChoiceCompositions, 403 TotalNumberOfCompositions, 258728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 131873, independent: 130999, independent conditional: 0, independent unconditional: 130999, dependent: 874, dependent conditional: 0, dependent unconditional: 874, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 77964, independent: 77795, independent conditional: 0, independent unconditional: 77795, dependent: 169, dependent conditional: 0, dependent unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 131873, independent: 53204, independent conditional: 0, independent unconditional: 53204, dependent: 705, dependent conditional: 0, dependent unconditional: 705, unknown: 77964, unknown conditional: 0, unknown unconditional: 77964] , Statistics on independence cache: Total cache size (in pairs): 2032, Positive cache size: 1939, Positive conditional cache size: 0, Positive unconditional cache size: 1939, Negative cache size: 93, Negative conditional cache size: 0, Negative unconditional cache size: 93, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 429 PlacesBefore, 128 PlacesAfterwards, 462 TransitionsBefore, 127 TransitionsAfterwards, 173888 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 274 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 103 ConcurrentYvCompositions, 34 ChoiceCompositions, 430 TotalNumberOfCompositions, 316254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 172820, independent: 171746, independent conditional: 0, independent unconditional: 171746, dependent: 1074, dependent conditional: 0, dependent unconditional: 1074, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 94343, independent: 94219, independent conditional: 0, independent unconditional: 94219, dependent: 124, dependent conditional: 0, dependent unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 172820, independent: 77527, independent conditional: 0, independent unconditional: 77527, dependent: 950, dependent conditional: 0, dependent unconditional: 950, unknown: 94343, unknown conditional: 0, unknown unconditional: 94343] , Statistics on independence cache: Total cache size (in pairs): 3377, Positive cache size: 3303, Positive conditional cache size: 0, Positive unconditional cache size: 3303, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 465 PlacesBefore, 139 PlacesAfterwards, 501 TransitionsBefore, 138 TransitionsAfterwards, 207480 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 294 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 117 ConcurrentYvCompositions, 37 ChoiceCompositions, 467 TotalNumberOfCompositions, 366814 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 188990, independent: 187943, independent conditional: 0, independent unconditional: 187943, dependent: 1047, dependent conditional: 0, dependent unconditional: 1047, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 113279, independent: 113135, independent conditional: 0, independent unconditional: 113135, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 188990, independent: 74808, independent conditional: 0, independent unconditional: 74808, dependent: 903, dependent conditional: 0, dependent unconditional: 903, unknown: 113279, unknown conditional: 0, unknown unconditional: 113279] , Statistics on independence cache: Total cache size (in pairs): 3510, Positive cache size: 3429, Positive conditional cache size: 0, Positive unconditional cache size: 3429, Negative cache size: 81, Negative conditional cache size: 0, Negative unconditional cache size: 81, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 501 PlacesBefore, 150 PlacesAfterwards, 540 TransitionsBefore, 149 TransitionsAfterwards, 244036 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 326 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 119 ConcurrentYvCompositions, 40 ChoiceCompositions, 504 TotalNumberOfCompositions, 439604 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 241918, independent: 240774, independent conditional: 0, independent unconditional: 240774, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 133253, independent: 133100, independent conditional: 0, independent unconditional: 133100, dependent: 153, dependent conditional: 0, dependent unconditional: 153, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 241918, independent: 107674, independent conditional: 0, independent unconditional: 107674, dependent: 991, dependent conditional: 0, dependent unconditional: 991, unknown: 133253, unknown conditional: 0, unknown unconditional: 133253] , Statistics on independence cache: Total cache size (in pairs): 4981, Positive cache size: 4893, Positive conditional cache size: 0, Positive unconditional cache size: 4893, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 537 PlacesBefore, 161 PlacesAfterwards, 579 TransitionsBefore, 160 TransitionsAfterwards, 283556 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 357 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 43 ChoiceCompositions, 544 TotalNumberOfCompositions, 511420 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255790, independent: 254555, independent conditional: 0, independent unconditional: 254555, dependent: 1235, dependent conditional: 0, dependent unconditional: 1235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 153938, independent: 153736, independent conditional: 0, independent unconditional: 153736, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255790, independent: 100819, independent conditional: 0, independent unconditional: 100819, dependent: 1033, dependent conditional: 0, dependent unconditional: 1033, unknown: 153938, unknown conditional: 0, unknown unconditional: 153938] , Statistics on independence cache: Total cache size (in pairs): 3768, Positive cache size: 3672, Positive conditional cache size: 0, Positive unconditional cache size: 3672, Negative cache size: 96, Negative conditional cache size: 0, Negative unconditional cache size: 96, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 573 PlacesBefore, 172 PlacesAfterwards, 618 TransitionsBefore, 171 TransitionsAfterwards, 326040 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 374 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 140 ConcurrentYvCompositions, 46 ChoiceCompositions, 579 TotalNumberOfCompositions, 586822 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 316244, independent: 314922, independent conditional: 0, independent unconditional: 314922, dependent: 1322, dependent conditional: 0, dependent unconditional: 1322, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 179467, independent: 179247, independent conditional: 0, independent unconditional: 179247, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 316244, independent: 135675, independent conditional: 0, independent unconditional: 135675, dependent: 1102, dependent conditional: 0, dependent unconditional: 1102, unknown: 179467, unknown conditional: 0, unknown unconditional: 179467] , Statistics on independence cache: Total cache size (in pairs): 5139, Positive cache size: 5018, Positive conditional cache size: 0, Positive unconditional cache size: 5018, Negative cache size: 121, Negative conditional cache size: 0, Negative unconditional cache size: 121, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0s, 609 PlacesBefore, 183 PlacesAfterwards, 657 TransitionsBefore, 182 TransitionsAfterwards, 371488 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 397 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 154 ConcurrentYvCompositions, 49 ChoiceCompositions, 619 TotalNumberOfCompositions, 664179 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 296365, independent: 294967, independent conditional: 0, independent unconditional: 294967, dependent: 1398, dependent conditional: 0, dependent unconditional: 1398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 199004, independent: 198778, independent conditional: 0, independent unconditional: 198778, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 296365, independent: 96189, independent conditional: 0, independent unconditional: 96189, dependent: 1172, dependent conditional: 0, dependent unconditional: 1172, unknown: 199004, unknown conditional: 0, unknown unconditional: 199004] , Statistics on independence cache: Total cache size (in pairs): 3420, Positive cache size: 3283, Positive conditional cache size: 0, Positive unconditional cache size: 3283, Negative cache size: 137, Negative conditional cache size: 0, Negative unconditional cache size: 137, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6s, 645 PlacesBefore, 194 PlacesAfterwards, 696 TransitionsBefore, 193 TransitionsAfterwards, 419900 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 420 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 155 ConcurrentYvCompositions, 52 ChoiceCompositions, 646 TotalNumberOfCompositions, 737302 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 338797, independent: 337328, independent conditional: 0, independent unconditional: 337328, dependent: 1469, dependent conditional: 0, dependent unconditional: 1469, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 224088, independent: 223909, independent conditional: 0, independent unconditional: 223909, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 338797, independent: 113419, independent conditional: 0, independent unconditional: 113419, dependent: 1290, dependent conditional: 0, dependent unconditional: 1290, unknown: 224088, unknown conditional: 0, unknown unconditional: 224088] , Statistics on independence cache: Total cache size (in pairs): 3937, Positive cache size: 3838, Positive conditional cache size: 0, Positive unconditional cache size: 3838, Negative cache size: 99, Negative conditional cache size: 0, Negative unconditional cache size: 99, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.6s, 681 PlacesBefore, 205 PlacesAfterwards, 735 TransitionsBefore, 204 TransitionsAfterwards, 471276 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 453 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 170 ConcurrentYvCompositions, 55 ChoiceCompositions, 697 TotalNumberOfCompositions, 867189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 448780, independent: 447181, independent conditional: 0, independent unconditional: 447181, dependent: 1599, dependent conditional: 0, dependent unconditional: 1599, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 259310, independent: 259061, independent conditional: 0, independent unconditional: 259061, dependent: 249, dependent conditional: 0, dependent unconditional: 249, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 448780, independent: 188120, independent conditional: 0, independent unconditional: 188120, dependent: 1350, dependent conditional: 0, dependent unconditional: 1350, unknown: 259310, unknown conditional: 0, unknown unconditional: 259310] , Statistics on independence cache: Total cache size (in pairs): 6712, Positive cache size: 6567, Positive conditional cache size: 0, Positive unconditional cache size: 6567, Negative cache size: 145, Negative conditional cache size: 0, Negative unconditional cache size: 145, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 717 PlacesBefore, 216 PlacesAfterwards, 774 TransitionsBefore, 215 TransitionsAfterwards, 525616 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 169 ConcurrentYvCompositions, 58 ChoiceCompositions, 715 TotalNumberOfCompositions, 937365 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 428137, independent: 426465, independent conditional: 0, independent unconditional: 426465, dependent: 1672, dependent conditional: 0, dependent unconditional: 1672, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 279852, independent: 279574, independent conditional: 0, independent unconditional: 279574, dependent: 278, dependent conditional: 0, dependent unconditional: 278, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 428137, independent: 146891, independent conditional: 0, independent unconditional: 146891, dependent: 1394, dependent conditional: 0, dependent unconditional: 1394, unknown: 279852, unknown conditional: 0, unknown unconditional: 279852] , Statistics on independence cache: Total cache size (in pairs): 6649, Positive cache size: 6485, Positive conditional cache size: 0, Positive unconditional cache size: 6485, Negative cache size: 164, Negative conditional cache size: 0, Negative unconditional cache size: 164, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 753 PlacesBefore, 227 PlacesAfterwards, 813 TransitionsBefore, 226 TransitionsAfterwards, 582920 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 496 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 184 ConcurrentYvCompositions, 61 ChoiceCompositions, 760 TotalNumberOfCompositions, 1059736 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 469545, independent: 467767, independent conditional: 0, independent unconditional: 467767, dependent: 1778, dependent conditional: 0, dependent unconditional: 1778, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 308107, independent: 307883, independent conditional: 0, independent unconditional: 307883, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 469545, independent: 159884, independent conditional: 0, independent unconditional: 159884, dependent: 1554, dependent conditional: 0, dependent unconditional: 1554, unknown: 308107, unknown conditional: 0, unknown unconditional: 308107] , Statistics on independence cache: Total cache size (in pairs): 4897, Positive cache size: 4780, Positive conditional cache size: 0, Positive unconditional cache size: 4780, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 789 PlacesBefore, 238 PlacesAfterwards, 852 TransitionsBefore, 237 TransitionsAfterwards, 643188 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 528 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 193 ConcurrentYvCompositions, 64 ChoiceCompositions, 804 TotalNumberOfCompositions, 1156886 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 525799, independent: 523968, independent conditional: 0, independent unconditional: 523968, dependent: 1831, dependent conditional: 0, dependent unconditional: 1831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345138, independent: 344913, independent conditional: 0, independent unconditional: 344913, dependent: 225, dependent conditional: 0, dependent unconditional: 225, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 525799, independent: 179055, independent conditional: 0, independent unconditional: 179055, dependent: 1606, dependent conditional: 0, dependent unconditional: 1606, unknown: 345138, unknown conditional: 0, unknown unconditional: 345138] , Statistics on independence cache: Total cache size (in pairs): 5695, Positive cache size: 5572, Positive conditional cache size: 0, Positive unconditional cache size: 5572, Negative cache size: 123, Negative conditional cache size: 0, Negative unconditional cache size: 123, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2s, 825 PlacesBefore, 249 PlacesAfterwards, 891 TransitionsBefore, 248 TransitionsAfterwards, 706420 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 549 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 197 ConcurrentYvCompositions, 67 ChoiceCompositions, 832 TotalNumberOfCompositions, 1285544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 565887, independent: 563926, independent conditional: 0, independent unconditional: 563926, dependent: 1961, dependent conditional: 0, dependent unconditional: 1961, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 374811, independent: 374549, independent conditional: 0, independent unconditional: 374549, dependent: 262, dependent conditional: 0, dependent unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 565887, independent: 189377, independent conditional: 0, independent unconditional: 189377, dependent: 1699, dependent conditional: 0, dependent unconditional: 1699, unknown: 374811, unknown conditional: 0, unknown unconditional: 374811] , Statistics on independence cache: Total cache size (in pairs): 5875, Positive cache size: 5746, Positive conditional cache size: 0, Positive unconditional cache size: 5746, Negative cache size: 129, Negative conditional cache size: 0, Negative unconditional cache size: 129, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1s, 861 PlacesBefore, 260 PlacesAfterwards, 930 TransitionsBefore, 259 TransitionsAfterwards, 772616 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 575 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 213 ConcurrentYvCompositions, 70 ChoiceCompositions, 877 TotalNumberOfCompositions, 1402423 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 722443, independent: 720414, independent conditional: 0, independent unconditional: 720414, dependent: 2029, dependent conditional: 0, dependent unconditional: 2029, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 420957, independent: 420671, independent conditional: 0, independent unconditional: 420671, dependent: 286, dependent conditional: 0, dependent unconditional: 286, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 722443, independent: 299743, independent conditional: 0, independent unconditional: 299743, dependent: 1743, dependent conditional: 0, dependent unconditional: 1743, unknown: 420957, unknown conditional: 0, unknown unconditional: 420957] , Statistics on independence cache: Total cache size (in pairs): 10229, Positive cache size: 10071, Positive conditional cache size: 0, Positive unconditional cache size: 10071, Negative cache size: 158, Negative conditional cache size: 0, Negative unconditional cache size: 158, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2s, 897 PlacesBefore, 271 PlacesAfterwards, 969 TransitionsBefore, 270 TransitionsAfterwards, 841776 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 593 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 225 ConcurrentYvCompositions, 73 ChoiceCompositions, 910 TotalNumberOfCompositions, 1534496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 770505, independent: 768385, independent conditional: 0, independent unconditional: 768385, dependent: 2120, dependent conditional: 0, dependent unconditional: 2120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 459651, independent: 459332, independent conditional: 0, independent unconditional: 459332, dependent: 319, dependent conditional: 0, dependent unconditional: 319, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 770505, independent: 309053, independent conditional: 0, independent unconditional: 309053, dependent: 1801, dependent conditional: 0, dependent unconditional: 1801, unknown: 459651, unknown conditional: 0, unknown unconditional: 459651] , Statistics on independence cache: Total cache size (in pairs): 11469, Positive cache size: 11304, Positive conditional cache size: 0, Positive unconditional cache size: 11304, Negative cache size: 165, Negative conditional cache size: 0, Negative unconditional cache size: 165, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.0s, 933 PlacesBefore, 282 PlacesAfterwards, 1008 TransitionsBefore, 281 TransitionsAfterwards, 913900 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 618 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 229 ConcurrentYvCompositions, 76 ChoiceCompositions, 942 TotalNumberOfCompositions, 1665559 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 821542, independent: 819325, independent conditional: 0, independent unconditional: 819325, dependent: 2217, dependent conditional: 0, dependent unconditional: 2217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 493325, independent: 493017, independent conditional: 0, independent unconditional: 493017, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 821542, independent: 326308, independent conditional: 0, independent unconditional: 326308, dependent: 1909, dependent conditional: 0, dependent unconditional: 1909, unknown: 493325, unknown conditional: 0, unknown unconditional: 493325] , Statistics on independence cache: Total cache size (in pairs): 11264, Positive cache size: 11063, Positive conditional cache size: 0, Positive unconditional cache size: 11063, Negative cache size: 201, Negative conditional cache size: 0, Negative unconditional cache size: 201, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 969 PlacesBefore, 293 PlacesAfterwards, 1047 TransitionsBefore, 292 TransitionsAfterwards, 988988 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 639 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 79 ChoiceCompositions, 995 TotalNumberOfCompositions, 1802479 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 883408, independent: 881127, independent conditional: 0, independent unconditional: 881127, dependent: 2281, dependent conditional: 0, dependent unconditional: 2281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 537114, independent: 536766, independent conditional: 0, independent unconditional: 536766, dependent: 348, dependent conditional: 0, dependent unconditional: 348, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 883408, independent: 344361, independent conditional: 0, independent unconditional: 344361, dependent: 1933, dependent conditional: 0, dependent unconditional: 1933, unknown: 537114, unknown conditional: 0, unknown unconditional: 537114] , Statistics on independence cache: Total cache size (in pairs): 11877, Positive cache size: 11698, Positive conditional cache size: 0, Positive unconditional cache size: 11698, Negative cache size: 179, Negative conditional cache size: 0, Negative unconditional cache size: 179, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8s, 1005 PlacesBefore, 304 PlacesAfterwards, 1086 TransitionsBefore, 303 TransitionsAfterwards, 1067040 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 677 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 245 ConcurrentYvCompositions, 82 ChoiceCompositions, 1023 TotalNumberOfCompositions, 1953807 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 965247, independent: 962856, independent conditional: 0, independent unconditional: 962856, dependent: 2391, dependent conditional: 0, dependent unconditional: 2391, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 576948, independent: 576588, independent conditional: 0, independent unconditional: 576588, dependent: 360, dependent conditional: 0, dependent unconditional: 360, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 965247, independent: 386268, independent conditional: 0, independent unconditional: 386268, dependent: 2031, dependent conditional: 0, dependent unconditional: 2031, unknown: 576948, unknown conditional: 0, unknown unconditional: 576948] , Statistics on independence cache: Total cache size (in pairs): 12747, Positive cache size: 12560, Positive conditional cache size: 0, Positive unconditional cache size: 12560, Negative cache size: 187, Negative conditional cache size: 0, Negative unconditional cache size: 187, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3s, 1041 PlacesBefore, 315 PlacesAfterwards, 1125 TransitionsBefore, 314 TransitionsAfterwards, 1148056 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 694 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 269 ConcurrentYvCompositions, 85 ChoiceCompositions, 1067 TotalNumberOfCompositions, 2055280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1060927, independent: 1058502, independent conditional: 0, independent unconditional: 1058502, dependent: 2425, dependent conditional: 0, dependent unconditional: 2425, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 626984, independent: 626585, independent conditional: 0, independent unconditional: 626585, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1060927, independent: 431917, independent conditional: 0, independent unconditional: 431917, dependent: 2026, dependent conditional: 0, dependent unconditional: 2026, unknown: 626984, unknown conditional: 0, unknown unconditional: 626984] , Statistics on independence cache: Total cache size (in pairs): 15633, Positive cache size: 15440, Positive conditional cache size: 0, Positive unconditional cache size: 15440, Negative cache size: 193, Negative conditional cache size: 0, Negative unconditional cache size: 193, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 1077 PlacesBefore, 326 PlacesAfterwards, 1164 TransitionsBefore, 325 TransitionsAfterwards, 1232036 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 718 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 263 ConcurrentYvCompositions, 88 ChoiceCompositions, 1088 TotalNumberOfCompositions, 2247082 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 977786, independent: 975213, independent conditional: 0, independent unconditional: 975213, dependent: 2573, dependent conditional: 0, dependent unconditional: 2573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 651371, independent: 650953, independent conditional: 0, independent unconditional: 650953, dependent: 418, dependent conditional: 0, dependent unconditional: 418, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 977786, independent: 324260, independent conditional: 0, independent unconditional: 324260, dependent: 2155, dependent conditional: 0, dependent unconditional: 2155, unknown: 651371, unknown conditional: 0, unknown unconditional: 651371] , Statistics on independence cache: Total cache size (in pairs): 9115, Positive cache size: 8831, Positive conditional cache size: 0, Positive unconditional cache size: 8831, Negative cache size: 284, Negative conditional cache size: 0, Negative unconditional cache size: 284, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.3s, 1113 PlacesBefore, 337 PlacesAfterwards, 1203 TransitionsBefore, 336 TransitionsAfterwards, 1318980 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 729 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 91 ChoiceCompositions, 1124 TotalNumberOfCompositions, 2399337 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1041233, independent: 1038582, independent conditional: 0, independent unconditional: 1038582, dependent: 2651, dependent conditional: 0, dependent unconditional: 2651, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 701254, independent: 700915, independent conditional: 0, independent unconditional: 700915, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1041233, independent: 337667, independent conditional: 0, independent unconditional: 337667, dependent: 2312, dependent conditional: 0, dependent unconditional: 2312, unknown: 701254, unknown conditional: 0, unknown unconditional: 701254] , Statistics on independence cache: Total cache size (in pairs): 9098, Positive cache size: 8921, Positive conditional cache size: 0, Positive unconditional cache size: 8921, Negative cache size: 177, Negative conditional cache size: 0, Negative unconditional cache size: 177, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.9s, 1149 PlacesBefore, 348 PlacesAfterwards, 1242 TransitionsBefore, 347 TransitionsAfterwards, 1408888 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 753 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 299 ConcurrentYvCompositions, 94 ChoiceCompositions, 1165 TotalNumberOfCompositions, 2596139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1151555, independent: 1148783, independent conditional: 0, independent unconditional: 1148783, dependent: 2772, dependent conditional: 0, dependent unconditional: 2772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 760037, independent: 759531, independent conditional: 0, independent unconditional: 759531, dependent: 506, dependent conditional: 0, dependent unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1151555, independent: 389252, independent conditional: 0, independent unconditional: 389252, dependent: 2266, dependent conditional: 0, dependent unconditional: 2266, unknown: 760037, unknown conditional: 0, unknown unconditional: 760037] , Statistics on independence cache: Total cache size (in pairs): 12188, Positive cache size: 11943, Positive conditional cache size: 0, Positive unconditional cache size: 11943, Negative cache size: 245, Negative conditional cache size: 0, Negative unconditional cache size: 245, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5s, 1185 PlacesBefore, 359 PlacesAfterwards, 1281 TransitionsBefore, 358 TransitionsAfterwards, 1501760 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 788 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 303 ConcurrentYvCompositions, 97 ChoiceCompositions, 1207 TotalNumberOfCompositions, 2728828 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1267648, independent: 1264832, independent conditional: 0, independent unconditional: 1264832, dependent: 2816, dependent conditional: 0, dependent unconditional: 2816, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 805553, independent: 805188, independent conditional: 0, independent unconditional: 805188, dependent: 365, dependent conditional: 0, dependent unconditional: 365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1267648, independent: 459644, independent conditional: 0, independent unconditional: 459644, dependent: 2451, dependent conditional: 0, dependent unconditional: 2451, unknown: 805553, unknown conditional: 0, unknown unconditional: 805553] , Statistics on independence cache: Total cache size (in pairs): 15115, Positive cache size: 14926, Positive conditional cache size: 0, Positive unconditional cache size: 14926, Negative cache size: 189, Negative conditional cache size: 0, Negative unconditional cache size: 189, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.7s, 1221 PlacesBefore, 370 PlacesAfterwards, 1320 TransitionsBefore, 369 TransitionsAfterwards, 1597596 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 826 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 306 ConcurrentYvCompositions, 100 ChoiceCompositions, 1251 TotalNumberOfCompositions, 2925214 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1438457, independent: 1435547, independent conditional: 0, independent unconditional: 1435547, dependent: 2910, dependent conditional: 0, dependent unconditional: 2910, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 864992, independent: 864556, independent conditional: 0, independent unconditional: 864556, dependent: 436, dependent conditional: 0, dependent unconditional: 436, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1438457, independent: 570991, independent conditional: 0, independent unconditional: 570991, dependent: 2474, dependent conditional: 0, dependent unconditional: 2474, unknown: 864992, unknown conditional: 0, unknown unconditional: 864992] , Statistics on independence cache: Total cache size (in pairs): 19095, Positive cache size: 18824, Positive conditional cache size: 0, Positive unconditional cache size: 18824, Negative cache size: 271, Negative conditional cache size: 0, Negative unconditional cache size: 271, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8s, 1257 PlacesBefore, 381 PlacesAfterwards, 1359 TransitionsBefore, 380 TransitionsAfterwards, 1696396 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 837 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 317 ConcurrentYvCompositions, 103 ChoiceCompositions, 1276 TotalNumberOfCompositions, 3089109 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1360201, independent: 1357204, independent conditional: 0, independent unconditional: 1357204, dependent: 2997, dependent conditional: 0, dependent unconditional: 2997, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 899385, independent: 898886, independent conditional: 0, independent unconditional: 898886, dependent: 499, dependent conditional: 0, dependent unconditional: 499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1360201, independent: 458318, independent conditional: 0, independent unconditional: 458318, dependent: 2498, dependent conditional: 0, dependent unconditional: 2498, unknown: 899385, unknown conditional: 0, unknown unconditional: 899385] , Statistics on independence cache: Total cache size (in pairs): 13528, Positive cache size: 13259, Positive conditional cache size: 0, Positive unconditional cache size: 13259, Negative cache size: 269, Negative conditional cache size: 0, Negative unconditional cache size: 269, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.8s, 1293 PlacesBefore, 392 PlacesAfterwards, 1398 TransitionsBefore, 391 TransitionsAfterwards, 1798160 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 858 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 106 ChoiceCompositions, 1308 TotalNumberOfCompositions, 3233201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1438378, independent: 1435317, independent conditional: 0, independent unconditional: 1435317, dependent: 3061, dependent conditional: 0, dependent unconditional: 3061, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 965964, independent: 965567, independent conditional: 0, independent unconditional: 965567, dependent: 397, dependent conditional: 0, dependent unconditional: 397, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1438378, independent: 469750, independent conditional: 0, independent unconditional: 469750, dependent: 2664, dependent conditional: 0, dependent unconditional: 2664, unknown: 965964, unknown conditional: 0, unknown unconditional: 965964] , Statistics on independence cache: Total cache size (in pairs): 15683, Positive cache size: 15476, Positive conditional cache size: 0, Positive unconditional cache size: 15476, Negative cache size: 207, Negative conditional cache size: 0, Negative unconditional cache size: 207, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7s, 1329 PlacesBefore, 403 PlacesAfterwards, 1437 TransitionsBefore, 402 TransitionsAfterwards, 1902888 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 890 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 334 ConcurrentYvCompositions, 109 ChoiceCompositions, 1352 TotalNumberOfCompositions, 3475092 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1715976, independent: 1712804, independent conditional: 0, independent unconditional: 1712804, dependent: 3172, dependent conditional: 0, dependent unconditional: 3172, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1031217, independent: 1030772, independent conditional: 0, independent unconditional: 1030772, dependent: 445, dependent conditional: 0, dependent unconditional: 445, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1715976, independent: 682032, independent conditional: 0, independent unconditional: 682032, dependent: 2727, dependent conditional: 0, dependent unconditional: 2727, unknown: 1031217, unknown conditional: 0, unknown unconditional: 1031217] , Statistics on independence cache: Total cache size (in pairs): 23399, Positive cache size: 23149, Positive conditional cache size: 0, Positive unconditional cache size: 23149, Negative cache size: 250, Negative conditional cache size: 0, Negative unconditional cache size: 250, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7s, 1365 PlacesBefore, 414 PlacesAfterwards, 1476 TransitionsBefore, 413 TransitionsAfterwards, 2010580 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 913 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 348 ConcurrentYvCompositions, 112 ChoiceCompositions, 1392 TotalNumberOfCompositions, 3614609 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1578503, independent: 1575270, independent conditional: 0, independent unconditional: 1575270, dependent: 3233, dependent conditional: 0, dependent unconditional: 3233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1069304, independent: 1068713, independent conditional: 0, independent unconditional: 1068713, dependent: 591, dependent conditional: 0, dependent unconditional: 591, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1578503, independent: 506557, independent conditional: 0, independent unconditional: 506557, dependent: 2642, dependent conditional: 0, dependent unconditional: 2642, unknown: 1069304, unknown conditional: 0, unknown unconditional: 1069304] , Statistics on independence cache: Total cache size (in pairs): 16473, Positive cache size: 16109, Positive conditional cache size: 0, Positive unconditional cache size: 16109, Negative cache size: 364, Negative conditional cache size: 0, Negative unconditional cache size: 364, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.8s, 1401 PlacesBefore, 425 PlacesAfterwards, 1515 TransitionsBefore, 424 TransitionsAfterwards, 2121236 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 944 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 351 ConcurrentYvCompositions, 115 ChoiceCompositions, 1429 TotalNumberOfCompositions, 3855568 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1671778, independent: 1668437, independent conditional: 0, independent unconditional: 1668437, dependent: 3341, dependent conditional: 0, dependent unconditional: 3341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1131284, independent: 1130871, independent conditional: 0, independent unconditional: 1130871, dependent: 413, dependent conditional: 0, dependent unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1671778, independent: 537566, independent conditional: 0, independent unconditional: 537566, dependent: 2928, dependent conditional: 0, dependent unconditional: 2928, unknown: 1131284, unknown conditional: 0, unknown unconditional: 1131284] , Statistics on independence cache: Total cache size (in pairs): 12505, Positive cache size: 12280, Positive conditional cache size: 0, Positive unconditional cache size: 12280, Negative cache size: 225, Negative conditional cache size: 0, Negative unconditional cache size: 225, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.9s, 1437 PlacesBefore, 436 PlacesAfterwards, 1554 TransitionsBefore, 435 TransitionsAfterwards, 2234856 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 966 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 357 ConcurrentYvCompositions, 118 ChoiceCompositions, 1460 TotalNumberOfCompositions, 4129516 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1751703, independent: 1748222, independent conditional: 0, independent unconditional: 1748222, dependent: 3481, dependent conditional: 0, dependent unconditional: 3481, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1183160, independent: 1182768, independent conditional: 0, independent unconditional: 1182768, dependent: 392, dependent conditional: 0, dependent unconditional: 392, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1751703, independent: 565454, independent conditional: 0, independent unconditional: 565454, dependent: 3089, dependent conditional: 0, dependent unconditional: 3089, unknown: 1183160, unknown conditional: 0, unknown unconditional: 1183160] , Statistics on independence cache: Total cache size (in pairs): 14913, Positive cache size: 14682, Positive conditional cache size: 0, Positive unconditional cache size: 14682, Negative cache size: 231, Negative conditional cache size: 0, Negative unconditional cache size: 231, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8s, 1473 PlacesBefore, 447 PlacesAfterwards, 1593 TransitionsBefore, 446 TransitionsAfterwards, 2351440 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 992 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 373 ConcurrentYvCompositions, 121 ChoiceCompositions, 1505 TotalNumberOfCompositions, 4297156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2082014, independent: 2078492, independent conditional: 0, independent unconditional: 2078492, dependent: 3522, dependent conditional: 0, dependent unconditional: 3522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1273868, independent: 1273149, independent conditional: 0, independent unconditional: 1273149, dependent: 719, dependent conditional: 0, dependent unconditional: 719, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2082014, independent: 805343, independent conditional: 0, independent unconditional: 805343, dependent: 2803, dependent conditional: 0, dependent unconditional: 2803, unknown: 1273868, unknown conditional: 0, unknown unconditional: 1273868] , Statistics on independence cache: Total cache size (in pairs): 27402, Positive cache size: 26951, Positive conditional cache size: 0, Positive unconditional cache size: 26951, Negative cache size: 451, Negative conditional cache size: 0, Negative unconditional cache size: 451, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.4s, 1509 PlacesBefore, 458 PlacesAfterwards, 1632 TransitionsBefore, 457 TransitionsAfterwards, 2470988 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1008 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 383 ConcurrentYvCompositions, 124 ChoiceCompositions, 1534 TotalNumberOfCompositions, 4513781 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1986920, independent: 1983303, independent conditional: 0, independent unconditional: 1983303, dependent: 3617, dependent conditional: 0, dependent unconditional: 3617, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1313624, independent: 1313133, independent conditional: 0, independent unconditional: 1313133, dependent: 491, dependent conditional: 0, dependent unconditional: 491, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1986920, independent: 670170, independent conditional: 0, independent unconditional: 670170, dependent: 3126, dependent conditional: 0, dependent unconditional: 3126, unknown: 1313624, unknown conditional: 0, unknown unconditional: 1313624] , Statistics on independence cache: Total cache size (in pairs): 20825, Positive cache size: 20570, Positive conditional cache size: 0, Positive unconditional cache size: 20570, Negative cache size: 255, Negative conditional cache size: 0, Negative unconditional cache size: 255, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7s, 1545 PlacesBefore, 469 PlacesAfterwards, 1671 TransitionsBefore, 468 TransitionsAfterwards, 2593500 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1038 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 402 ConcurrentYvCompositions, 127 ChoiceCompositions, 1586 TotalNumberOfCompositions, 4704317 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2023528, independent: 2019856, independent conditional: 0, independent unconditional: 2019856, dependent: 3672, dependent conditional: 0, dependent unconditional: 3672, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1388671, independent: 1388193, independent conditional: 0, independent unconditional: 1388193, dependent: 478, dependent conditional: 0, dependent unconditional: 478, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2023528, independent: 631663, independent conditional: 0, independent unconditional: 631663, dependent: 3194, dependent conditional: 0, dependent unconditional: 3194, unknown: 1388671, unknown conditional: 0, unknown unconditional: 1388671] , Statistics on independence cache: Total cache size (in pairs): 18862, Positive cache size: 18613, Positive conditional cache size: 0, Positive unconditional cache size: 18613, Negative cache size: 249, Negative conditional cache size: 0, Negative unconditional cache size: 249, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.6s, 1581 PlacesBefore, 480 PlacesAfterwards, 1710 TransitionsBefore, 479 TransitionsAfterwards, 2718976 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1059 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 393 ConcurrentYvCompositions, 130 ChoiceCompositions, 1601 TotalNumberOfCompositions, 4895126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2146370, independent: 2142603, independent conditional: 0, independent unconditional: 2142603, dependent: 3767, dependent conditional: 0, dependent unconditional: 3767, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437918, independent: 1437425, independent conditional: 0, independent unconditional: 1437425, dependent: 493, dependent conditional: 0, dependent unconditional: 493, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2146370, independent: 705178, independent conditional: 0, independent unconditional: 705178, dependent: 3274, dependent conditional: 0, dependent unconditional: 3274, unknown: 1437918, unknown conditional: 0, unknown unconditional: 1437918] , Statistics on independence cache: Total cache size (in pairs): 21624, Positive cache size: 21369, Positive conditional cache size: 0, Positive unconditional cache size: 21369, Negative cache size: 255, Negative conditional cache size: 0, Negative unconditional cache size: 255, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.5s, 1617 PlacesBefore, 491 PlacesAfterwards, 1749 TransitionsBefore, 490 TransitionsAfterwards, 2847416 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1085 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 408 ConcurrentYvCompositions, 133 ChoiceCompositions, 1645 TotalNumberOfCompositions, 5139393 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2195531, independent: 2191680, independent conditional: 0, independent unconditional: 2191680, dependent: 3851, dependent conditional: 0, dependent unconditional: 3851, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1510052, independent: 1509606, independent conditional: 0, independent unconditional: 1509606, dependent: 446, dependent conditional: 0, dependent unconditional: 446, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2195531, independent: 682074, independent conditional: 0, independent unconditional: 682074, dependent: 3405, dependent conditional: 0, dependent unconditional: 3405, unknown: 1510052, unknown conditional: 0, unknown unconditional: 1510052] , Statistics on independence cache: Total cache size (in pairs): 18345, Positive cache size: 18084, Positive conditional cache size: 0, Positive unconditional cache size: 18084, Negative cache size: 261, Negative conditional cache size: 0, Negative unconditional cache size: 261, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0s, 1653 PlacesBefore, 502 PlacesAfterwards, 1788 TransitionsBefore, 501 TransitionsAfterwards, 2978820 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1106 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 412 ConcurrentYvCompositions, 136 ChoiceCompositions, 1673 TotalNumberOfCompositions, 5527759 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2667687, independent: 2663680, independent conditional: 0, independent unconditional: 2663680, dependent: 4007, dependent conditional: 0, dependent unconditional: 4007, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1606303, independent: 1605747, independent conditional: 0, independent unconditional: 1605747, dependent: 556, dependent conditional: 0, dependent unconditional: 556, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2667687, independent: 1057933, independent conditional: 0, independent unconditional: 1057933, dependent: 3451, dependent conditional: 0, dependent unconditional: 3451, unknown: 1606303, unknown conditional: 0, unknown unconditional: 1606303] , Statistics on independence cache: Total cache size (in pairs): 35257, Positive cache size: 34945, Positive conditional cache size: 0, Positive unconditional cache size: 34945, Negative cache size: 312, Negative conditional cache size: 0, Negative unconditional cache size: 312, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.7s, 1689 PlacesBefore, 513 PlacesAfterwards, 1827 TransitionsBefore, 512 TransitionsAfterwards, 3113188 CoEnabledTransitionPairs, 7 FixpointIterations, 19 TrivialSequentialCompositions, 1146 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 426 ConcurrentYvCompositions, 139 ChoiceCompositions, 1730 TotalNumberOfCompositions, 6176231 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2731191, independent: 2726462, independent conditional: 0, independent unconditional: 2726462, dependent: 4729, dependent conditional: 0, dependent unconditional: 4729, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1666145, independent: 1665506, independent conditional: 0, independent unconditional: 1665506, dependent: 639, dependent conditional: 0, dependent unconditional: 639, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2731191, independent: 1060956, independent conditional: 0, independent unconditional: 1060956, dependent: 4090, dependent conditional: 0, dependent unconditional: 4090, unknown: 1666145, unknown conditional: 0, unknown unconditional: 1666145] , Statistics on independence cache: Total cache size (in pairs): 29553, Positive cache size: 29156, Positive conditional cache size: 0, Positive unconditional cache size: 29156, 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: 24.9s, 1725 PlacesBefore, 524 PlacesAfterwards, 1866 TransitionsBefore, 523 TransitionsAfterwards, 3250520 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1163 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 436 ConcurrentYvCompositions, 142 ChoiceCompositions, 1760 TotalNumberOfCompositions, 6088471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2829843, independent: 2825636, independent conditional: 0, independent unconditional: 2825636, dependent: 4207, dependent conditional: 0, dependent unconditional: 4207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1748816, independent: 1748226, independent conditional: 0, independent unconditional: 1748226, dependent: 590, dependent conditional: 0, dependent unconditional: 590, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2829843, independent: 1077410, independent conditional: 0, independent unconditional: 1077410, dependent: 3617, dependent conditional: 0, dependent unconditional: 3617, unknown: 1748816, unknown conditional: 0, unknown unconditional: 1748816] , Statistics on independence cache: Total cache size (in pairs): 42018, Positive cache size: 41692, Positive conditional cache size: 0, Positive unconditional cache size: 41692, Negative cache size: 326, Negative conditional cache size: 0, Negative unconditional cache size: 326, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8s, 1761 PlacesBefore, 535 PlacesAfterwards, 1905 TransitionsBefore, 534 TransitionsAfterwards, 3390816 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1179 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 453 ConcurrentYvCompositions, 145 ChoiceCompositions, 1796 TotalNumberOfCompositions, 6284470 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2809396, independent: 2805144, independent conditional: 0, independent unconditional: 2805144, dependent: 4252, dependent conditional: 0, dependent unconditional: 4252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1805539, independent: 1805002, independent conditional: 0, independent unconditional: 1805002, dependent: 537, dependent conditional: 0, dependent unconditional: 537, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2809396, independent: 1000142, independent conditional: 0, independent unconditional: 1000142, dependent: 3715, dependent conditional: 0, dependent unconditional: 3715, unknown: 1805539, unknown conditional: 0, unknown unconditional: 1805539] , Statistics on independence cache: Total cache size (in pairs): 29299, Positive cache size: 29014, Positive conditional cache size: 0, Positive unconditional cache size: 29014, Negative cache size: 285, Negative conditional cache size: 0, Negative unconditional cache size: 285, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.7s, 1797 PlacesBefore, 546 PlacesAfterwards, 1944 TransitionsBefore, 545 TransitionsAfterwards, 3534076 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1211 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 458 ConcurrentYvCompositions, 148 ChoiceCompositions, 1836 TotalNumberOfCompositions, 6508277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2877999, independent: 2873675, independent conditional: 0, independent unconditional: 2873675, dependent: 4324, dependent conditional: 0, dependent unconditional: 4324, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1889781, independent: 1889226, independent conditional: 0, independent unconditional: 1889226, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2877999, independent: 984449, independent conditional: 0, independent unconditional: 984449, dependent: 3769, dependent conditional: 0, dependent unconditional: 3769, unknown: 1889781, unknown conditional: 0, unknown unconditional: 1889781] , Statistics on independence cache: Total cache size (in pairs): 28135, Positive cache size: 27844, Positive conditional cache size: 0, Positive unconditional cache size: 27844, Negative cache size: 291, Negative conditional cache size: 0, Negative unconditional cache size: 291, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.9s, 1833 PlacesBefore, 557 PlacesAfterwards, 1983 TransitionsBefore, 556 TransitionsAfterwards, 3680300 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1243 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 460 ConcurrentYvCompositions, 151 ChoiceCompositions, 1873 TotalNumberOfCompositions, 6824813 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3033605, independent: 3029181, independent conditional: 0, independent unconditional: 3029181, dependent: 4424, dependent conditional: 0, dependent unconditional: 4424, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1967761, independent: 1967204, independent conditional: 0, independent unconditional: 1967204, dependent: 557, dependent conditional: 0, dependent unconditional: 557, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3033605, independent: 1061977, independent conditional: 0, independent unconditional: 1061977, dependent: 3867, dependent conditional: 0, dependent unconditional: 3867, unknown: 1967761, unknown conditional: 0, unknown unconditional: 1967761] , Statistics on independence cache: Total cache size (in pairs): 29744, Positive cache size: 29447, Positive conditional cache size: 0, Positive unconditional cache size: 29447, Negative cache size: 297, Negative conditional cache size: 0, Negative unconditional cache size: 297, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.6s, 1869 PlacesBefore, 568 PlacesAfterwards, 2022 TransitionsBefore, 567 TransitionsAfterwards, 3829488 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1264 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 486 ConcurrentYvCompositions, 154 ChoiceCompositions, 1923 TotalNumberOfCompositions, 7166665 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3118690, independent: 3114147, independent conditional: 0, independent unconditional: 3114147, dependent: 4543, dependent conditional: 0, dependent unconditional: 4543, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2056467, independent: 2055880, independent conditional: 0, independent unconditional: 2055880, dependent: 587, dependent conditional: 0, dependent unconditional: 587, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3118690, independent: 1058267, independent conditional: 0, independent unconditional: 1058267, dependent: 3956, dependent conditional: 0, dependent unconditional: 3956, unknown: 2056467, unknown conditional: 0, unknown unconditional: 2056467] , Statistics on independence cache: Total cache size (in pairs): 28644, Positive cache size: 28341, Positive conditional cache size: 0, Positive unconditional cache size: 28341, Negative cache size: 303, Negative conditional cache size: 0, Negative unconditional cache size: 303, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.4s, 1905 PlacesBefore, 579 PlacesAfterwards, 2061 TransitionsBefore, 578 TransitionsAfterwards, 3981640 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1279 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 478 ConcurrentYvCompositions, 157 ChoiceCompositions, 1933 TotalNumberOfCompositions, 7361642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3242738, independent: 3238127, independent conditional: 0, independent unconditional: 3238127, dependent: 4611, dependent conditional: 0, dependent unconditional: 4611, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2116651, independent: 2116016, independent conditional: 0, independent unconditional: 2116016, dependent: 635, dependent conditional: 0, dependent unconditional: 635, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3242738, independent: 1122111, independent conditional: 0, independent unconditional: 1122111, dependent: 3976, dependent conditional: 0, dependent unconditional: 3976, unknown: 2116651, unknown conditional: 0, unknown unconditional: 2116651] , Statistics on independence cache: Total cache size (in pairs): 30153, Positive cache size: 29844, Positive conditional cache size: 0, Positive unconditional cache size: 29844, Negative cache size: 309, Negative conditional cache size: 0, Negative unconditional cache size: 309, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.0s, 1941 PlacesBefore, 590 PlacesAfterwards, 2100 TransitionsBefore, 589 TransitionsAfterwards, 4136756 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1320 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 486 ConcurrentYvCompositions, 160 ChoiceCompositions, 1985 TotalNumberOfCompositions, 7723653 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3356623, independent: 3351896, independent conditional: 0, independent unconditional: 3351896, dependent: 4727, dependent conditional: 0, dependent unconditional: 4727, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2189294, independent: 2188692, independent conditional: 0, independent unconditional: 2188692, dependent: 602, dependent conditional: 0, dependent unconditional: 602, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3356623, independent: 1163204, independent conditional: 0, independent unconditional: 1163204, dependent: 4125, dependent conditional: 0, dependent unconditional: 4125, unknown: 2189294, unknown conditional: 0, unknown unconditional: 2189294] , Statistics on independence cache: Total cache size (in pairs): 29229, Positive cache size: 28914, Positive conditional cache size: 0, Positive unconditional cache size: 28914, Negative cache size: 315, Negative conditional cache size: 0, Negative unconditional cache size: 315, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.2s, 1977 PlacesBefore, 601 PlacesAfterwards, 2139 TransitionsBefore, 600 TransitionsAfterwards, 4294836 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1333 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 509 ConcurrentYvCompositions, 163 ChoiceCompositions, 2024 TotalNumberOfCompositions, 8097806 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3510001, independent: 3505157, independent conditional: 0, independent unconditional: 3505157, dependent: 4844, dependent conditional: 0, dependent unconditional: 4844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2294768, independent: 2294220, independent conditional: 0, independent unconditional: 2294220, dependent: 548, dependent conditional: 0, dependent unconditional: 548, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3510001, independent: 1210937, independent conditional: 0, independent unconditional: 1210937, dependent: 4296, dependent conditional: 0, dependent unconditional: 4296, unknown: 2294768, unknown conditional: 0, unknown unconditional: 2294768] , Statistics on independence cache: Total cache size (in pairs): 32165, Positive cache size: 31843, Positive conditional cache size: 0, Positive unconditional cache size: 31843, Negative cache size: 322, Negative conditional cache size: 0, Negative unconditional cache size: 322, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.4s, 2013 PlacesBefore, 612 PlacesAfterwards, 2178 TransitionsBefore, 611 TransitionsAfterwards, 4455880 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1352 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 511 ConcurrentYvCompositions, 166 ChoiceCompositions, 2048 TotalNumberOfCompositions, 8276701 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3578458, independent: 3573559, independent conditional: 0, independent unconditional: 3573559, dependent: 4899, dependent conditional: 0, dependent unconditional: 4899, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2374041, independent: 2373408, independent conditional: 0, independent unconditional: 2373408, dependent: 633, dependent conditional: 0, dependent unconditional: 633, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3578458, independent: 1200151, independent conditional: 0, independent unconditional: 1200151, dependent: 4266, dependent conditional: 0, dependent unconditional: 4266, unknown: 2374041, unknown conditional: 0, unknown unconditional: 2374041] , Statistics on independence cache: Total cache size (in pairs): 32342, Positive cache size: 32015, Positive conditional cache size: 0, Positive unconditional cache size: 32015, Negative cache size: 327, Negative conditional cache size: 0, Negative unconditional cache size: 327, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.8s, 2049 PlacesBefore, 623 PlacesAfterwards, 2217 TransitionsBefore, 622 TransitionsAfterwards, 4619888 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 1389 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 516 ConcurrentYvCompositions, 169 ChoiceCompositions, 2093 TotalNumberOfCompositions, 8729270 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3811509, independent: 3806467, independent conditional: 0, independent unconditional: 3806467, dependent: 5042, dependent conditional: 0, dependent unconditional: 5042, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2472254, independent: 2471608, independent conditional: 0, independent unconditional: 2471608, dependent: 646, dependent conditional: 0, dependent unconditional: 646, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3811509, independent: 1334859, independent conditional: 0, independent unconditional: 1334859, dependent: 4396, dependent conditional: 0, dependent unconditional: 4396, unknown: 2472254, unknown conditional: 0, unknown unconditional: 2472254] , Statistics on independence cache: Total cache size (in pairs): 35965, Positive cache size: 35632, Positive conditional cache size: 0, Positive unconditional cache size: 35632, Negative cache size: 333, Negative conditional cache size: 0, Negative unconditional cache size: 333, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - ExceptionOrErrorResult: AutomataOperationCanceledException: Timeout or canceled by user. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.automata.petrinet.unfolding.PetriNetUnfolder.computeUnfolding(PetriNetUnfolder.java:184) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown