/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/29_conditionals_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:17:06,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:17:06,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:17:06,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:17:06,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:17:06,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:17:06,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:17:06,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:17:06,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:17:06,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:17:06,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:17:06,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:17:06,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:17:06,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:17:06,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:17:06,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:17:06,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:17:06,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:17:06,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:17:06,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:17:06,834 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:17:06,852 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:17:06,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:17:06,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:17:06,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:17:06,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:17:06,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:17:06,853 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:17:06,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:17:06,853 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:17:06,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:17:06,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:17:06,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:17:06,855 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:17:07,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:17:07,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:17:07,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:17:07,058 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:17:07,058 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:17:07,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-01-28 00:17:08,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:17:08,207 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:17:08,207 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/29_conditionals_vs.i [2023-01-28 00:17:08,215 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6ed8b4/3c93138a9cda4551917c111f88f821a8/FLAG7fdf1f4e3 [2023-01-28 00:17:08,227 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6ed8b4/3c93138a9cda4551917c111f88f821a8 [2023-01-28 00:17:08,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:17:08,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:17:08,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:17:08,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:17:08,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:17:08,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0b86a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08, skipping insertion in model container [2023-01-28 00:17:08,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:17:08,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:17:08,480 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/29_conditionals_vs.i[30422,30435] [2023-01-28 00:17:08,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:17:08,497 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:17:08,536 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/29_conditionals_vs.i[30422,30435] [2023-01-28 00:17:08,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:17:08,565 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:17:08,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08 WrapperNode [2023-01-28 00:17:08,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:17:08,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:17:08,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:17:08,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:17:08,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,597 INFO L138 Inliner]: procedures = 170, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2023-01-28 00:17:08,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:17:08,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:17:08,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:17:08,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:17:08,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:17:08,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:17:08,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:17:08,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:17:08,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (1/1) ... [2023-01-28 00:17:08,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:17:08,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:17:08,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 00:17:08,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 00:17:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 00:17:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 00:17:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:17:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:17:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:17:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:17:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:17:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:17:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:17:08,704 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:17:08,809 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:17:08,810 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:17:08,929 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:17:08,951 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:17:08,951 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-01-28 00:17:08,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:17:08 BoogieIcfgContainer [2023-01-28 00:17:08,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:17:08,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:17:08,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:17:08,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:17:08,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:17:08" (1/3) ... [2023-01-28 00:17:08,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a71030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:17:08, skipping insertion in model container [2023-01-28 00:17:08,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:17:08" (2/3) ... [2023-01-28 00:17:08,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62a71030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:17:08, skipping insertion in model container [2023-01-28 00:17:08,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:17:08" (3/3) ... [2023-01-28 00:17:08,959 INFO L112 eAbstractionObserver]: Analyzing ICFG 29_conditionals_vs.i [2023-01-28 00:17:08,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:17:08,970 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:17:08,970 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:17:09,001 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:09,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,043 INFO L130 PetriNetUnfolder]: 6/64 cut-off events. [2023-01-28 00:17:09,044 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:17:09,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 6/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2023-01-28 00:17:09,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,053 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:09,059 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,060 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 54 transitions, 113 flow [2023-01-28 00:17:09,071 INFO L130 PetriNetUnfolder]: 6/64 cut-off events. [2023-01-28 00:17:09,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:17:09,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 64 events. 6/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 41. Up to 4 conditions per place. [2023-01-28 00:17:09,073 INFO L119 LiptonReduction]: Number of co-enabled transitions 754 [2023-01-28 00:17:10,526 INFO L134 LiptonReduction]: Checked pairs total: 611 [2023-01-28 00:17:10,526 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-01-28 00:17:10,536 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:10,540 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:10,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:10,542 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-01-28 00:17:10,542 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:17:10,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:10,542 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 00:17:10,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:10,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash -349651909, now seen corresponding path program 1 times [2023-01-28 00:17:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:10,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617613703] [2023-01-28 00:17:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:10,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:10,615 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:10,635 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:10,636 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:10,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:10,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:17:10,638 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:10,640 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:10,640 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:10,640 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 00:17:10,651 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:10,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,665 INFO L130 PetriNetUnfolder]: 11/106 cut-off events. [2023-01-28 00:17:10,666 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:17:10,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 106 events. 11/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 173 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 70. Up to 6 conditions per place. [2023-01-28 00:17:10,666 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,667 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,667 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:10,667 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,668 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 84 transitions, 180 flow [2023-01-28 00:17:10,678 INFO L130 PetriNetUnfolder]: 11/106 cut-off events. [2023-01-28 00:17:10,678 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:17:10,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 106 events. 11/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 173 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 70. Up to 6 conditions per place. [2023-01-28 00:17:10,680 INFO L119 LiptonReduction]: Number of co-enabled transitions 3248 [2023-01-28 00:17:12,481 INFO L134 LiptonReduction]: Checked pairs total: 3080 [2023-01-28 00:17:12,481 INFO L136 LiptonReduction]: Total number of compositions: 87 [2023-01-28 00:17:12,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:12,483 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:12,483 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:12,486 INFO L130 PetriNetUnfolder]: 2/23 cut-off events. [2023-01-28 00:17:12,486 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:17:12,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:12,486 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 00:17:12,487 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:12,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:12,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1782016936, now seen corresponding path program 1 times [2023-01-28 00:17:12,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:12,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457466723] [2023-01-28 00:17:12,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:12,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:12,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:12,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:12,524 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:12,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:12,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:17:12,524 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:12,525 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:12,525 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:12,525 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 00:17:12,539 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:12,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,555 INFO L130 PetriNetUnfolder]: 16/148 cut-off events. [2023-01-28 00:17:12,555 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:17:12,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 148 events. 16/148 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 110. Up to 8 conditions per place. [2023-01-28 00:17:12,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,557 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:12,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,558 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 114 transitions, 249 flow [2023-01-28 00:17:12,569 INFO L130 PetriNetUnfolder]: 16/148 cut-off events. [2023-01-28 00:17:12,569 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:17:12,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 148 events. 16/148 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 110. Up to 8 conditions per place. [2023-01-28 00:17:12,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 7482 [2023-01-28 00:17:15,110 INFO L134 LiptonReduction]: Checked pairs total: 6877 [2023-01-28 00:17:15,110 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-01-28 00:17:15,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:15,114 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:15,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:15,118 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2023-01-28 00:17:15,118 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:17:15,118 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:15,119 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 00:17:15,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:15,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -629585071, now seen corresponding path program 1 times [2023-01-28 00:17:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037024418] [2023-01-28 00:17:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:15,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:15,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:15,168 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:15,168 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:15,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:15,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:17:15,168 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:15,169 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:15,169 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:15,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 00:17:15,197 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:15,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,235 INFO L130 PetriNetUnfolder]: 21/190 cut-off events. [2023-01-28 00:17:15,235 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:17:15,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 190 events. 21/190 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 475 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 156. Up to 10 conditions per place. [2023-01-28 00:17:15,237 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,239 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:15,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,239 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 144 transitions, 320 flow [2023-01-28 00:17:15,254 INFO L130 PetriNetUnfolder]: 21/190 cut-off events. [2023-01-28 00:17:15,254 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:17:15,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 190 events. 21/190 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 475 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 156. Up to 10 conditions per place. [2023-01-28 00:17:15,262 INFO L119 LiptonReduction]: Number of co-enabled transitions 13456 [2023-01-28 00:17:18,166 INFO L134 LiptonReduction]: Checked pairs total: 12143 [2023-01-28 00:17:18,166 INFO L136 LiptonReduction]: Total number of compositions: 156 [2023-01-28 00:17:18,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:18,178 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:18,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:18,182 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2023-01-28 00:17:18,182 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:17:18,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:18,182 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:18,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:18,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1365754883, now seen corresponding path program 1 times [2023-01-28 00:17:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:18,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82242386] [2023-01-28 00:17:18,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:18,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:18,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:18,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:18,233 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:18,233 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:18,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:17:18,233 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:18,234 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:18,234 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:18,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 00:17:18,244 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:18,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,265 INFO L130 PetriNetUnfolder]: 26/232 cut-off events. [2023-01-28 00:17:18,266 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:17:18,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 232 events. 26/232 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 625 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 204. Up to 12 conditions per place. [2023-01-28 00:17:18,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,268 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:18,268 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,268 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 174 transitions, 393 flow [2023-01-28 00:17:18,286 INFO L130 PetriNetUnfolder]: 26/232 cut-off events. [2023-01-28 00:17:18,286 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:17:18,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 232 events. 26/232 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 625 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 204. Up to 12 conditions per place. [2023-01-28 00:17:18,296 INFO L119 LiptonReduction]: Number of co-enabled transitions 21170 [2023-01-28 00:17:22,059 INFO L134 LiptonReduction]: Checked pairs total: 21309 [2023-01-28 00:17:22,059 INFO L136 LiptonReduction]: Total number of compositions: 195 [2023-01-28 00:17:22,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:22,060 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:22,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:22,063 INFO L130 PetriNetUnfolder]: 1/45 cut-off events. [2023-01-28 00:17:22,063 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:17:22,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:22,063 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:22,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:22,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:22,064 INFO L85 PathProgramCache]: Analyzing trace with hash -510641466, now seen corresponding path program 1 times [2023-01-28 00:17:22,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:22,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141121926] [2023-01-28 00:17:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:22,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:22,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:22,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:22,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:22,115 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:22,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:17:22,115 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:22,116 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:22,116 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:22,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 00:17:22,138 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:22,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,166 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2023-01-28 00:17:22,166 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:17:22,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 274 events. 31/274 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 749 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 254. Up to 14 conditions per place. [2023-01-28 00:17:22,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,170 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:22,170 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,171 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 204 transitions, 468 flow [2023-01-28 00:17:22,192 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2023-01-28 00:17:22,193 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:17:22,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 274 events. 31/274 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 749 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 254. Up to 14 conditions per place. [2023-01-28 00:17:22,205 INFO L119 LiptonReduction]: Number of co-enabled transitions 30624 [2023-01-28 00:17:26,141 INFO L134 LiptonReduction]: Checked pairs total: 28756 [2023-01-28 00:17:26,142 INFO L136 LiptonReduction]: Total number of compositions: 221 [2023-01-28 00:17:26,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:26,144 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:26,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:26,147 INFO L130 PetriNetUnfolder]: 3/57 cut-off events. [2023-01-28 00:17:26,147 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:17:26,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:26,148 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:26,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:26,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:26,148 INFO L85 PathProgramCache]: Analyzing trace with hash 304781237, now seen corresponding path program 1 times [2023-01-28 00:17:26,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:26,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478328190] [2023-01-28 00:17:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:26,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:26,172 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:26,172 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:26,172 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:26,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:17:26,173 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:26,173 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:26,173 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:26,173 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 00:17:26,204 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:26,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,232 INFO L130 PetriNetUnfolder]: 36/316 cut-off events. [2023-01-28 00:17:26,232 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:17:26,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 316 events. 36/316 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 916 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 305. Up to 16 conditions per place. [2023-01-28 00:17:26,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,240 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:26,240 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,240 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 234 transitions, 545 flow [2023-01-28 00:17:26,266 INFO L130 PetriNetUnfolder]: 36/316 cut-off events. [2023-01-28 00:17:26,266 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:17:26,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 366 conditions, 316 events. 36/316 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 916 event pairs, 0 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 305. Up to 16 conditions per place. [2023-01-28 00:17:26,274 INFO L119 LiptonReduction]: Number of co-enabled transitions 41818 [2023-01-28 00:17:31,315 INFO L134 LiptonReduction]: Checked pairs total: 41157 [2023-01-28 00:17:31,315 INFO L136 LiptonReduction]: Total number of compositions: 265 [2023-01-28 00:17:31,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:31,317 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:31,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:31,321 INFO L130 PetriNetUnfolder]: 2/63 cut-off events. [2023-01-28 00:17:31,322 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:17:31,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:31,322 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:31,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:31,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:31,322 INFO L85 PathProgramCache]: Analyzing trace with hash -282970458, now seen corresponding path program 1 times [2023-01-28 00:17:31,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:31,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144713918] [2023-01-28 00:17:31,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:31,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:31,351 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:31,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:31,374 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:31,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:31,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:17:31,375 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:31,375 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:31,375 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:31,375 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-28 00:17:31,391 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:31,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,429 INFO L130 PetriNetUnfolder]: 41/358 cut-off events. [2023-01-28 00:17:31,429 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:17:31,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 358 events. 41/358 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1066 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 357. Up to 18 conditions per place. [2023-01-28 00:17:31,432 INFO L82 GeneralOperation]: Start removeDead. Operand has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,435 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:31,435 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,435 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 248 places, 264 transitions, 624 flow [2023-01-28 00:17:31,473 INFO L130 PetriNetUnfolder]: 41/358 cut-off events. [2023-01-28 00:17:31,473 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:17:31,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 358 events. 41/358 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1066 event pairs, 0 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 357. Up to 18 conditions per place. [2023-01-28 00:17:31,485 INFO L119 LiptonReduction]: Number of co-enabled transitions 54752 [2023-01-28 00:17:36,748 INFO L134 LiptonReduction]: Checked pairs total: 55579 [2023-01-28 00:17:36,748 INFO L136 LiptonReduction]: Total number of compositions: 297 [2023-01-28 00:17:36,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:36,750 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:36,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:36,755 INFO L130 PetriNetUnfolder]: 2/71 cut-off events. [2023-01-28 00:17:36,755 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:17:36,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:36,755 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:36,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:36,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1099616246, now seen corresponding path program 1 times [2023-01-28 00:17:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:36,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075234912] [2023-01-28 00:17:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:36,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:36,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:36,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:36,802 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:36,802 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:36,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:17:36,802 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:36,803 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:36,803 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:36,803 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-28 00:17:36,821 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:36,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,864 INFO L130 PetriNetUnfolder]: 46/400 cut-off events. [2023-01-28 00:17:36,864 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:17:36,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 400 events. 46/400 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1216 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 410. Up to 20 conditions per place. [2023-01-28 00:17:36,868 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,871 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:36,871 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,871 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 294 transitions, 705 flow [2023-01-28 00:17:36,911 INFO L130 PetriNetUnfolder]: 46/400 cut-off events. [2023-01-28 00:17:36,912 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:17:36,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 400 events. 46/400 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1216 event pairs, 0 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 410. Up to 20 conditions per place. [2023-01-28 00:17:36,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 69426 [2023-01-28 00:17:42,741 INFO L134 LiptonReduction]: Checked pairs total: 68030 [2023-01-28 00:17:42,742 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-01-28 00:17:42,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:42,743 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:42,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:42,770 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2023-01-28 00:17:42,770 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:17:42,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:42,771 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:42,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:42,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:42,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2089114799, now seen corresponding path program 1 times [2023-01-28 00:17:42,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070961635] [2023-01-28 00:17:42,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:42,797 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:42,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:42,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:42,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:42,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:17:42,822 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:42,824 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:42,825 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:42,825 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-28 00:17:42,848 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:42,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,903 INFO L130 PetriNetUnfolder]: 51/442 cut-off events. [2023-01-28 00:17:42,903 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:17:42,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 442 events. 51/442 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1362 event pairs, 0 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 464. Up to 22 conditions per place. [2023-01-28 00:17:42,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,911 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:42,911 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 324 transitions, 788 flow [2023-01-28 00:17:42,961 INFO L130 PetriNetUnfolder]: 51/442 cut-off events. [2023-01-28 00:17:42,961 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:17:42,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 442 events. 51/442 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1362 event pairs, 0 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 464. Up to 22 conditions per place. [2023-01-28 00:17:42,982 INFO L119 LiptonReduction]: Number of co-enabled transitions 85840 [2023-01-28 00:17:49,201 INFO L134 LiptonReduction]: Checked pairs total: 83168 [2023-01-28 00:17:49,201 INFO L136 LiptonReduction]: Total number of compositions: 362 [2023-01-28 00:17:49,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:49,202 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:49,202 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:49,209 INFO L130 PetriNetUnfolder]: 6/95 cut-off events. [2023-01-28 00:17:49,209 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:17:49,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:49,209 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:49,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:49,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:49,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1651627562, now seen corresponding path program 1 times [2023-01-28 00:17:49,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:49,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985395498] [2023-01-28 00:17:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:49,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:49,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:49,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:49,254 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:49,254 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:49,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:17:49,254 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:49,254 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:49,255 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:49,255 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-28 00:17:49,281 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:49,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,384 INFO L130 PetriNetUnfolder]: 56/484 cut-off events. [2023-01-28 00:17:49,384 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:17:49,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 484 events. 56/484 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1529 event pairs, 0 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 519. Up to 24 conditions per place. [2023-01-28 00:17:49,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,393 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:49,393 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,393 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 332 places, 354 transitions, 873 flow [2023-01-28 00:17:49,448 INFO L130 PetriNetUnfolder]: 56/484 cut-off events. [2023-01-28 00:17:49,448 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:17:49,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 484 events. 56/484 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1529 event pairs, 0 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 519. Up to 24 conditions per place. [2023-01-28 00:17:49,472 INFO L119 LiptonReduction]: Number of co-enabled transitions 103994 [2023-01-28 00:17:55,839 INFO L134 LiptonReduction]: Checked pairs total: 93914 [2023-01-28 00:17:55,839 INFO L136 LiptonReduction]: Total number of compositions: 390 [2023-01-28 00:17:55,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:55,840 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:55,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:55,847 INFO L130 PetriNetUnfolder]: 3/97 cut-off events. [2023-01-28 00:17:55,847 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:17:55,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:55,847 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:17:55,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:55,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 53545410, now seen corresponding path program 1 times [2023-01-28 00:17:55,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:55,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016613374] [2023-01-28 00:17:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:55,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:55,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:55,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:55,871 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:55,872 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:55,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:17:55,872 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:55,872 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:55,872 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:55,872 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-28 00:17:55,895 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:55,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,009 INFO L130 PetriNetUnfolder]: 61/526 cut-off events. [2023-01-28 00:17:56,009 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:17:56,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 526 events. 61/526 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1659 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 575. Up to 26 conditions per place. [2023-01-28 00:17:56,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,017 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:56,017 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,018 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 360 places, 384 transitions, 960 flow [2023-01-28 00:17:56,092 INFO L130 PetriNetUnfolder]: 61/526 cut-off events. [2023-01-28 00:17:56,093 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:17:56,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 526 events. 61/526 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1659 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 575. Up to 26 conditions per place. [2023-01-28 00:17:56,123 INFO L119 LiptonReduction]: Number of co-enabled transitions 123888 [2023-01-28 00:18:03,717 INFO L134 LiptonReduction]: Checked pairs total: 121829 [2023-01-28 00:18:03,717 INFO L136 LiptonReduction]: Total number of compositions: 435 [2023-01-28 00:18:03,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:03,719 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:03,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:03,726 INFO L130 PetriNetUnfolder]: 5/109 cut-off events. [2023-01-28 00:18:03,726 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:18:03,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:03,727 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:03,727 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:03,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:03,727 INFO L85 PathProgramCache]: Analyzing trace with hash -255510163, now seen corresponding path program 1 times [2023-01-28 00:18:03,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:03,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390807182] [2023-01-28 00:18:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:03,744 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:03,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:03,758 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:03,758 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:03,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:18:03,758 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:03,760 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:03,760 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:03,760 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-28 00:18:03,788 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:03,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,871 INFO L130 PetriNetUnfolder]: 66/568 cut-off events. [2023-01-28 00:18:03,871 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:18:03,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 568 events. 66/568 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1808 event pairs, 0 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 632. Up to 28 conditions per place. [2023-01-28 00:18:03,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,884 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:03,884 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,884 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 414 transitions, 1049 flow [2023-01-28 00:18:03,964 INFO L130 PetriNetUnfolder]: 66/568 cut-off events. [2023-01-28 00:18:03,965 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:18:03,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 568 events. 66/568 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1808 event pairs, 0 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 632. Up to 28 conditions per place. [2023-01-28 00:18:04,000 INFO L119 LiptonReduction]: Number of co-enabled transitions 145522 [2023-01-28 00:18:12,964 INFO L134 LiptonReduction]: Checked pairs total: 143189 [2023-01-28 00:18:12,965 INFO L136 LiptonReduction]: Total number of compositions: 468 [2023-01-28 00:18:12,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:12,966 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:12,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:12,974 INFO L130 PetriNetUnfolder]: 3/113 cut-off events. [2023-01-28 00:18:12,974 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:18:12,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:12,975 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:12,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:12,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:12,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1539874375, now seen corresponding path program 1 times [2023-01-28 00:18:12,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:12,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125941907] [2023-01-28 00:18:12,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:12,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:13,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:13,014 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:13,014 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:13,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 00:18:13,014 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:13,014 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:13,014 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:13,014 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-28 00:18:13,042 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:13,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,139 INFO L130 PetriNetUnfolder]: 71/610 cut-off events. [2023-01-28 00:18:13,139 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:18:13,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 610 events. 71/610 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1971 event pairs, 0 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 690. Up to 30 conditions per place. [2023-01-28 00:18:13,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,154 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,154 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:13,154 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,154 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 416 places, 444 transitions, 1140 flow [2023-01-28 00:18:13,287 INFO L130 PetriNetUnfolder]: 71/610 cut-off events. [2023-01-28 00:18:13,287 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:18:13,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 610 events. 71/610 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1971 event pairs, 0 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 690. Up to 30 conditions per place. [2023-01-28 00:18:13,321 INFO L119 LiptonReduction]: Number of co-enabled transitions 168896 [2023-01-28 00:18:22,119 INFO L134 LiptonReduction]: Checked pairs total: 159671 [2023-01-28 00:18:22,119 INFO L136 LiptonReduction]: Total number of compositions: 500 [2023-01-28 00:18:22,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:22,120 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:22,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:22,130 INFO L130 PetriNetUnfolder]: 6/127 cut-off events. [2023-01-28 00:18:22,130 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:18:22,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:22,130 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:22,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:22,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1641456532, now seen corresponding path program 1 times [2023-01-28 00:18:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36927367] [2023-01-28 00:18:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:22,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:22,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:22,161 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:22,161 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 00:18:22,161 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:22,161 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:22,162 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:22,162 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-28 00:18:22,193 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:22,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,303 INFO L130 PetriNetUnfolder]: 76/652 cut-off events. [2023-01-28 00:18:22,303 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:18:22,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 652 events. 76/652 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2126 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 749. Up to 32 conditions per place. [2023-01-28 00:18:22,314 INFO L82 GeneralOperation]: Start removeDead. Operand has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,319 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:22,320 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,320 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 474 transitions, 1233 flow [2023-01-28 00:18:22,428 INFO L130 PetriNetUnfolder]: 76/652 cut-off events. [2023-01-28 00:18:22,428 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:18:22,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 818 conditions, 652 events. 76/652 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2126 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 749. Up to 32 conditions per place. [2023-01-28 00:18:22,480 INFO L119 LiptonReduction]: Number of co-enabled transitions 194010 [2023-01-28 00:18:32,147 INFO L134 LiptonReduction]: Checked pairs total: 190692 [2023-01-28 00:18:32,147 INFO L136 LiptonReduction]: Total number of compositions: 533 [2023-01-28 00:18:32,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:32,148 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:32,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:32,158 INFO L130 PetriNetUnfolder]: 5/133 cut-off events. [2023-01-28 00:18:32,159 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:18:32,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:32,159 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:32,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:32,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:32,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1602634681, now seen corresponding path program 1 times [2023-01-28 00:18:32,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:32,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390003976] [2023-01-28 00:18:32,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:32,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:32,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:32,196 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:32,196 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:32,197 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:32,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 00:18:32,197 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:32,197 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:32,198 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:32,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-28 00:18:32,239 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:32,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,363 INFO L130 PetriNetUnfolder]: 81/694 cut-off events. [2023-01-28 00:18:32,363 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:18:32,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 694 events. 81/694 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2270 event pairs, 0 based on Foata normal form. 0/580 useless extension candidates. Maximal degree in co-relation 809. Up to 34 conditions per place. [2023-01-28 00:18:32,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,383 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:32,383 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,383 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 472 places, 504 transitions, 1328 flow [2023-01-28 00:18:32,505 INFO L130 PetriNetUnfolder]: 81/694 cut-off events. [2023-01-28 00:18:32,506 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:18:32,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 694 events. 81/694 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2270 event pairs, 0 based on Foata normal form. 0/580 useless extension candidates. Maximal degree in co-relation 809. Up to 34 conditions per place. [2023-01-28 00:18:32,563 INFO L119 LiptonReduction]: Number of co-enabled transitions 220864 [2023-01-28 00:18:42,999 INFO L134 LiptonReduction]: Checked pairs total: 209614 [2023-01-28 00:18:43,000 INFO L136 LiptonReduction]: Total number of compositions: 564 [2023-01-28 00:18:43,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:43,002 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:43,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:43,014 INFO L130 PetriNetUnfolder]: 4/139 cut-off events. [2023-01-28 00:18:43,014 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:18:43,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:43,014 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:43,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:43,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:43,014 INFO L85 PathProgramCache]: Analyzing trace with hash -478769430, now seen corresponding path program 1 times [2023-01-28 00:18:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382838570] [2023-01-28 00:18:43,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:43,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:43,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:43,044 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:43,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:43,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 00:18:43,045 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:43,045 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:43,045 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:43,045 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-28 00:18:43,078 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:43,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,213 INFO L130 PetriNetUnfolder]: 86/736 cut-off events. [2023-01-28 00:18:43,213 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:18:43,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 736 events. 86/736 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2410 event pairs, 0 based on Foata normal form. 0/615 useless extension candidates. Maximal degree in co-relation 870. Up to 36 conditions per place. [2023-01-28 00:18:43,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:43,234 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,234 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 500 places, 534 transitions, 1425 flow [2023-01-28 00:18:43,395 INFO L130 PetriNetUnfolder]: 86/736 cut-off events. [2023-01-28 00:18:43,396 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:18:43,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 736 events. 86/736 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2410 event pairs, 0 based on Foata normal form. 0/615 useless extension candidates. Maximal degree in co-relation 870. Up to 36 conditions per place. [2023-01-28 00:18:43,449 INFO L119 LiptonReduction]: Number of co-enabled transitions 249458 [2023-01-28 00:18:54,384 INFO L134 LiptonReduction]: Checked pairs total: 245115 [2023-01-28 00:18:54,384 INFO L136 LiptonReduction]: Total number of compositions: 607 [2023-01-28 00:18:54,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:54,386 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:54,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:54,398 INFO L130 PetriNetUnfolder]: 6/151 cut-off events. [2023-01-28 00:18:54,398 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:18:54,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:54,398 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:18:54,398 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:54,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1945784035, now seen corresponding path program 1 times [2023-01-28 00:18:54,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:54,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962440002] [2023-01-28 00:18:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:54,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:54,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:54,432 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:54,432 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:54,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 00:18:54,432 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:54,432 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:54,432 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:54,432 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-28 00:18:54,468 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:54,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,674 INFO L130 PetriNetUnfolder]: 91/778 cut-off events. [2023-01-28 00:18:54,674 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:18:54,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 778 events. 91/778 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2566 event pairs, 0 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 932. Up to 38 conditions per place. [2023-01-28 00:18:54,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,694 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:54,694 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,694 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 528 places, 564 transitions, 1524 flow [2023-01-28 00:18:54,848 INFO L130 PetriNetUnfolder]: 91/778 cut-off events. [2023-01-28 00:18:54,848 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:18:54,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 778 events. 91/778 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2566 event pairs, 0 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 932. Up to 38 conditions per place. [2023-01-28 00:18:54,918 INFO L119 LiptonReduction]: Number of co-enabled transitions 279792 [2023-01-28 00:19:06,990 INFO L134 LiptonReduction]: Checked pairs total: 278769 [2023-01-28 00:19:06,991 INFO L136 LiptonReduction]: Total number of compositions: 645 [2023-01-28 00:19:06,992 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:06,992 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:06,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:07,006 INFO L130 PetriNetUnfolder]: 7/161 cut-off events. [2023-01-28 00:19:07,006 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:19:07,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:07,006 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:19:07,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:07,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash 953390620, now seen corresponding path program 1 times [2023-01-28 00:19:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:07,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765629454] [2023-01-28 00:19:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:07,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:07,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:07,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:07,062 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:07,062 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:07,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 00:19:07,062 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:07,063 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:07,063 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:07,063 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-28 00:19:07,101 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:07,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,293 INFO L130 PetriNetUnfolder]: 96/820 cut-off events. [2023-01-28 00:19:07,293 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:19:07,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 820 events. 96/820 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2716 event pairs, 0 based on Foata normal form. 0/685 useless extension candidates. Maximal degree in co-relation 995. Up to 40 conditions per place. [2023-01-28 00:19:07,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,317 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:07,317 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 556 places, 594 transitions, 1625 flow [2023-01-28 00:19:07,488 INFO L130 PetriNetUnfolder]: 96/820 cut-off events. [2023-01-28 00:19:07,488 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:19:07,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 820 events. 96/820 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2716 event pairs, 0 based on Foata normal form. 0/685 useless extension candidates. Maximal degree in co-relation 995. Up to 40 conditions per place. [2023-01-28 00:19:07,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 311866 [2023-01-28 00:19:19,774 INFO L134 LiptonReduction]: Checked pairs total: 291794 [2023-01-28 00:19:19,782 INFO L136 LiptonReduction]: Total number of compositions: 669 [2023-01-28 00:19:19,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:19,783 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:19,783 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:19,796 INFO L130 PetriNetUnfolder]: 4/163 cut-off events. [2023-01-28 00:19:19,796 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:19:19,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:19,797 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:19:19,797 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:19,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1832371488, now seen corresponding path program 1 times [2023-01-28 00:19:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539903493] [2023-01-28 00:19:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:19,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:19,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:19,850 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:19,850 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:19,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 00:19:19,850 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:19,851 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:19,851 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:19,851 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-28 00:19:19,895 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:19,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,078 INFO L130 PetriNetUnfolder]: 101/862 cut-off events. [2023-01-28 00:19:20,078 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:19:20,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 862 events. 101/862 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2860 event pairs, 0 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 1059. Up to 42 conditions per place. [2023-01-28 00:19:20,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,108 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:20,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 584 places, 624 transitions, 1728 flow [2023-01-28 00:19:20,282 INFO L130 PetriNetUnfolder]: 101/862 cut-off events. [2023-01-28 00:19:20,282 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:19:20,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 862 events. 101/862 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 2860 event pairs, 0 based on Foata normal form. 0/720 useless extension candidates. Maximal degree in co-relation 1059. Up to 42 conditions per place. [2023-01-28 00:19:20,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 345680 [2023-01-28 00:19:33,697 INFO L134 LiptonReduction]: Checked pairs total: 340180 [2023-01-28 00:19:33,708 INFO L136 LiptonReduction]: Total number of compositions: 717 [2023-01-28 00:19:33,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:33,710 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:33,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:33,734 INFO L130 PetriNetUnfolder]: 9/181 cut-off events. [2023-01-28 00:19:33,734 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:19:33,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:33,734 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:19:33,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:33,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash 101387483, now seen corresponding path program 1 times [2023-01-28 00:19:33,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:33,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241291924] [2023-01-28 00:19:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:33,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:33,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:33,771 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:33,771 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:33,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 00:19:33,771 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:33,771 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:33,771 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:33,771 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-28 00:19:33,806 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:33,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,004 INFO L130 PetriNetUnfolder]: 106/904 cut-off events. [2023-01-28 00:19:34,004 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:19:34,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 904 events. 106/904 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3012 event pairs, 0 based on Foata normal form. 0/755 useless extension candidates. Maximal degree in co-relation 1124. Up to 44 conditions per place. [2023-01-28 00:19:34,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,035 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:34,035 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,035 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 612 places, 654 transitions, 1833 flow [2023-01-28 00:19:34,255 INFO L130 PetriNetUnfolder]: 106/904 cut-off events. [2023-01-28 00:19:34,255 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:19:34,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 904 events. 106/904 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3012 event pairs, 0 based on Foata normal form. 0/755 useless extension candidates. Maximal degree in co-relation 1124. Up to 44 conditions per place. [2023-01-28 00:19:34,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 381234 [2023-01-28 00:19:48,173 INFO L134 LiptonReduction]: Checked pairs total: 367072 [2023-01-28 00:19:48,173 INFO L136 LiptonReduction]: Total number of compositions: 743 [2023-01-28 00:19:48,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:48,174 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:48,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:48,191 INFO L130 PetriNetUnfolder]: 7/185 cut-off events. [2023-01-28 00:19:48,191 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:19:48,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:48,191 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:19:48,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:48,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1012206562, now seen corresponding path program 1 times [2023-01-28 00:19:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629452656] [2023-01-28 00:19:48,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:48,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:48,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:48,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:48,242 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:48,242 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:48,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 00:19:48,242 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:48,243 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:48,243 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:48,243 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-28 00:19:48,289 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:48,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,513 INFO L130 PetriNetUnfolder]: 111/946 cut-off events. [2023-01-28 00:19:48,513 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:19:48,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 946 events. 111/946 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3210 event pairs, 0 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 1190. Up to 46 conditions per place. [2023-01-28 00:19:48,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,550 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:48,550 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,550 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 640 places, 684 transitions, 1940 flow [2023-01-28 00:19:48,798 INFO L130 PetriNetUnfolder]: 111/946 cut-off events. [2023-01-28 00:19:48,799 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:19:48,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 946 events. 111/946 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3210 event pairs, 0 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 1190. Up to 46 conditions per place. [2023-01-28 00:19:48,897 INFO L119 LiptonReduction]: Number of co-enabled transitions 418528 [2023-01-28 00:20:03,597 INFO L134 LiptonReduction]: Checked pairs total: 398248 [2023-01-28 00:20:03,598 INFO L136 LiptonReduction]: Total number of compositions: 771 [2023-01-28 00:20:03,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:03,599 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:03,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:03,616 INFO L130 PetriNetUnfolder]: 5/189 cut-off events. [2023-01-28 00:20:03,616 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:20:03,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:03,617 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:20:03,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:03,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -198367383, now seen corresponding path program 1 times [2023-01-28 00:20:03,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:03,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147963148] [2023-01-28 00:20:03,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:03,644 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:03,666 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:03,666 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:03,666 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:03,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 00:20:03,666 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:03,667 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:03,667 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:03,667 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-28 00:20:03,713 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:03,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:03,997 INFO L130 PetriNetUnfolder]: 116/988 cut-off events. [2023-01-28 00:20:03,997 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:20:04,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 988 events. 116/988 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3325 event pairs, 0 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1257. Up to 48 conditions per place. [2023-01-28 00:20:04,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:04,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:04,028 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:04,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:04,028 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:04,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 668 places, 714 transitions, 2049 flow [2023-01-28 00:20:04,271 INFO L130 PetriNetUnfolder]: 116/988 cut-off events. [2023-01-28 00:20:04,271 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:20:04,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 988 events. 116/988 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3325 event pairs, 0 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1257. Up to 48 conditions per place. [2023-01-28 00:20:04,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 457562 [2023-01-28 00:20:19,561 INFO L134 LiptonReduction]: Checked pairs total: 438282 [2023-01-28 00:20:19,561 INFO L136 LiptonReduction]: Total number of compositions: 799 [2023-01-28 00:20:19,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:19,562 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:19,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:19,581 INFO L130 PetriNetUnfolder]: 6/199 cut-off events. [2023-01-28 00:20:19,581 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:20:19,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:19,582 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:20:19,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:19,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:19,582 INFO L85 PathProgramCache]: Analyzing trace with hash 317293864, now seen corresponding path program 1 times [2023-01-28 00:20:19,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:19,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579272172] [2023-01-28 00:20:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:19,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:19,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:19,632 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:19,632 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:19,632 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:19,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-28 00:20:19,632 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:19,633 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:19,633 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:19,633 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-28 00:20:19,679 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:19,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:19,946 INFO L130 PetriNetUnfolder]: 121/1030 cut-off events. [2023-01-28 00:20:19,946 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:20:19,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1030 events. 121/1030 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3471 event pairs, 0 based on Foata normal form. 0/860 useless extension candidates. Maximal degree in co-relation 1325. Up to 50 conditions per place. [2023-01-28 00:20:19,981 INFO L82 GeneralOperation]: Start removeDead. Operand has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:19,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:19,994 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:19,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:19,994 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:19,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 696 places, 744 transitions, 2160 flow [2023-01-28 00:20:20,295 INFO L130 PetriNetUnfolder]: 121/1030 cut-off events. [2023-01-28 00:20:20,295 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:20:20,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1030 events. 121/1030 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3471 event pairs, 0 based on Foata normal form. 0/860 useless extension candidates. Maximal degree in co-relation 1325. Up to 50 conditions per place. [2023-01-28 00:20:20,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 498336 [2023-01-28 00:20:36,141 INFO L134 LiptonReduction]: Checked pairs total: 481809 [2023-01-28 00:20:36,141 INFO L136 LiptonReduction]: Total number of compositions: 847 [2023-01-28 00:20:36,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:36,142 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:36,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:36,162 INFO L130 PetriNetUnfolder]: 5/205 cut-off events. [2023-01-28 00:20:36,162 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:20:36,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:36,162 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:20:36,162 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:36,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2060297946, now seen corresponding path program 1 times [2023-01-28 00:20:36,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:36,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992082452] [2023-01-28 00:20:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:36,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:36,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:36,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:36,219 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:36,219 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:36,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-28 00:20:36,220 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:36,220 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:36,220 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:36,220 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-28 00:20:36,264 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:36,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,562 INFO L130 PetriNetUnfolder]: 126/1072 cut-off events. [2023-01-28 00:20:36,562 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:20:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 1072 events. 126/1072 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3608 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 1394. Up to 52 conditions per place. [2023-01-28 00:20:36,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,609 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,609 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:36,609 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,609 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 724 places, 774 transitions, 2273 flow [2023-01-28 00:20:36,911 INFO L130 PetriNetUnfolder]: 126/1072 cut-off events. [2023-01-28 00:20:36,911 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:20:36,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1473 conditions, 1072 events. 126/1072 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3608 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 1394. Up to 52 conditions per place. [2023-01-28 00:20:37,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 540850 [2023-01-28 00:20:53,385 INFO L134 LiptonReduction]: Checked pairs total: 527315 [2023-01-28 00:20:53,385 INFO L136 LiptonReduction]: Total number of compositions: 877 [2023-01-28 00:20:53,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:53,386 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:53,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:53,408 INFO L130 PetriNetUnfolder]: 7/217 cut-off events. [2023-01-28 00:20:53,408 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:20:53,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:53,409 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:20:53,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:53,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash 349593871, now seen corresponding path program 1 times [2023-01-28 00:20:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:53,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372906962] [2023-01-28 00:20:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:53,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:53,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:53,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:53,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:53,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:53,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-28 00:20:53,459 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:53,459 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:53,459 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:53,459 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-28 00:20:53,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:53,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:53,880 INFO L130 PetriNetUnfolder]: 131/1114 cut-off events. [2023-01-28 00:20:53,880 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:20:53,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1114 events. 131/1114 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3776 event pairs, 0 based on Foata normal form. 0/930 useless extension candidates. Maximal degree in co-relation 1464. Up to 54 conditions per place. [2023-01-28 00:20:53,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:53,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:53,918 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:53,918 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:53,919 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:53,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 752 places, 804 transitions, 2388 flow [2023-01-28 00:20:54,234 INFO L130 PetriNetUnfolder]: 131/1114 cut-off events. [2023-01-28 00:20:54,234 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:20:54,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1114 events. 131/1114 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3776 event pairs, 0 based on Foata normal form. 0/930 useless extension candidates. Maximal degree in co-relation 1464. Up to 54 conditions per place. [2023-01-28 00:20:54,396 INFO L119 LiptonReduction]: Number of co-enabled transitions 585104 [2023-01-28 00:21:11,844 INFO L134 LiptonReduction]: Checked pairs total: 566325 [2023-01-28 00:21:11,844 INFO L136 LiptonReduction]: Total number of compositions: 918 [2023-01-28 00:21:11,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:11,846 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:11,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:11,868 INFO L130 PetriNetUnfolder]: 7/225 cut-off events. [2023-01-28 00:21:11,869 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:21:11,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:11,869 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:11,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:11,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1021174385, now seen corresponding path program 1 times [2023-01-28 00:21:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:11,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588492345] [2023-01-28 00:21:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:11,893 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:11,918 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:11,919 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:11,919 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:11,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 00:21:11,919 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:11,919 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:11,919 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:11,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-28 00:21:11,969 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:11,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,330 INFO L130 PetriNetUnfolder]: 136/1156 cut-off events. [2023-01-28 00:21:12,330 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:21:12,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 1156 events. 136/1156 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3936 event pairs, 0 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 1535. Up to 56 conditions per place. [2023-01-28 00:21:12,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,383 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,383 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:21:12,383 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,383 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 780 places, 834 transitions, 2505 flow [2023-01-28 00:21:12,734 INFO L130 PetriNetUnfolder]: 136/1156 cut-off events. [2023-01-28 00:21:12,734 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:21:12,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 1156 events. 136/1156 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 3936 event pairs, 0 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 1535. Up to 56 conditions per place. [2023-01-28 00:21:12,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 631098 [2023-01-28 00:21:30,912 INFO L134 LiptonReduction]: Checked pairs total: 627141 [2023-01-28 00:21:30,912 INFO L136 LiptonReduction]: Total number of compositions: 955 [2023-01-28 00:21:30,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:30,914 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:30,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:30,938 INFO L130 PetriNetUnfolder]: 5/229 cut-off events. [2023-01-28 00:21:30,938 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:21:30,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:30,938 INFO L208 CegarLoopForPetriNet]: trace histogram [28, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:30,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:30,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1145455459, now seen corresponding path program 1 times [2023-01-28 00:21:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:30,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766044884] [2023-01-28 00:21:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:30,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:31,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:31,009 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:31,009 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:31,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-01-28 00:21:31,009 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:31,010 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:31,010 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:31,010 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-01-28 00:21:31,059 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:31,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,433 INFO L130 PetriNetUnfolder]: 141/1198 cut-off events. [2023-01-28 00:21:31,434 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:21:31,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1198 events. 141/1198 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4109 event pairs, 0 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 1607. Up to 58 conditions per place. [2023-01-28 00:21:31,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,491 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:21:31,491 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,491 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 808 places, 864 transitions, 2624 flow [2023-01-28 00:21:31,861 INFO L130 PetriNetUnfolder]: 141/1198 cut-off events. [2023-01-28 00:21:31,861 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:21:31,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1198 events. 141/1198 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4109 event pairs, 0 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 1607. Up to 58 conditions per place. [2023-01-28 00:21:32,026 INFO L119 LiptonReduction]: Number of co-enabled transitions 678832 [2023-01-28 00:21:49,999 INFO L134 LiptonReduction]: Checked pairs total: 646909 [2023-01-28 00:21:49,999 INFO L136 LiptonReduction]: Total number of compositions: 977 [2023-01-28 00:21:50,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:50,000 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:50,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:50,026 INFO L130 PetriNetUnfolder]: 6/239 cut-off events. [2023-01-28 00:21:50,026 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:21:50,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:50,026 INFO L208 CegarLoopForPetriNet]: trace histogram [29, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:50,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:50,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:50,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1322953110, now seen corresponding path program 1 times [2023-01-28 00:21:50,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:50,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273486304] [2023-01-28 00:21:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:50,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:50,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:50,077 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:50,077 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:50,077 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:50,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-01-28 00:21:50,077 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:50,078 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:50,078 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:50,078 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-01-28 00:21:50,128 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:50,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,529 INFO L130 PetriNetUnfolder]: 146/1240 cut-off events. [2023-01-28 00:21:50,529 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:21:50,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 1240 events. 146/1240 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4251 event pairs, 0 based on Foata normal form. 0/1035 useless extension candidates. Maximal degree in co-relation 1680. Up to 60 conditions per place. [2023-01-28 00:21:50,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,591 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,591 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:21:50,591 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 836 places, 894 transitions, 2745 flow [2023-01-28 00:21:50,989 INFO L130 PetriNetUnfolder]: 146/1240 cut-off events. [2023-01-28 00:21:50,989 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:21:51,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 1240 events. 146/1240 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4251 event pairs, 0 based on Foata normal form. 0/1035 useless extension candidates. Maximal degree in co-relation 1680. Up to 60 conditions per place. [2023-01-28 00:21:51,187 INFO L119 LiptonReduction]: Number of co-enabled transitions 728306 [2023-01-28 00:22:10,038 INFO L134 LiptonReduction]: Checked pairs total: 724552 [2023-01-28 00:22:10,039 INFO L136 LiptonReduction]: Total number of compositions: 1028 [2023-01-28 00:22:10,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:22:10,040 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:22:10,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:22:10,069 INFO L130 PetriNetUnfolder]: 14/263 cut-off events. [2023-01-28 00:22:10,069 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:22:10,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:22:10,069 INFO L208 CegarLoopForPetriNet]: trace histogram [30, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:22:10,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:22:10,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:22:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1807568404, now seen corresponding path program 1 times [2023-01-28 00:22:10,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:22:10,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210003841] [2023-01-28 00:22:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:22:10,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:22:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:10,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:22:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:10,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:22:10,124 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:22:10,124 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:22:10,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-01-28 00:22:10,124 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:22:10,124 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:22:10,125 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:22:10,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-01-28 00:22:10,171 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:22:10,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:10,674 INFO L130 PetriNetUnfolder]: 151/1282 cut-off events. [2023-01-28 00:22:10,675 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:22:10,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 1282 events. 151/1282 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4440 event pairs, 0 based on Foata normal form. 0/1070 useless extension candidates. Maximal degree in co-relation 1754. Up to 62 conditions per place. [2023-01-28 00:22:10,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:10,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:10,717 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:10,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:10,718 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:10,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 864 places, 924 transitions, 2868 flow [2023-01-28 00:22:11,252 INFO L130 PetriNetUnfolder]: 151/1282 cut-off events. [2023-01-28 00:22:11,252 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:22:11,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 1282 events. 151/1282 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4440 event pairs, 0 based on Foata normal form. 0/1070 useless extension candidates. Maximal degree in co-relation 1754. Up to 62 conditions per place. [2023-01-28 00:22:11,447 INFO L119 LiptonReduction]: Number of co-enabled transitions 779520 [2023-01-28 00:22:31,496 INFO L134 LiptonReduction]: Checked pairs total: 765136 [2023-01-28 00:22:31,496 INFO L136 LiptonReduction]: Total number of compositions: 1056 [2023-01-28 00:22:31,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:22:31,498 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:22:31,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:22:31,528 INFO L130 PetriNetUnfolder]: 12/267 cut-off events. [2023-01-28 00:22:31,529 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:22:31,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:22:31,529 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:22:31,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:22:31,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:22:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash 646171350, now seen corresponding path program 1 times [2023-01-28 00:22:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:22:31,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67119386] [2023-01-28 00:22:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:22:31,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:22:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:31,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:22:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:31,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:22:31,580 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:22:31,580 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:22:31,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-01-28 00:22:31,580 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:22:31,580 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:22:31,581 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:22:31,581 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-01-28 00:22:31,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:22:31,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,095 INFO L130 PetriNetUnfolder]: 156/1324 cut-off events. [2023-01-28 00:22:32,095 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:22:32,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 1324 events. 156/1324 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4541 event pairs, 0 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1829. Up to 64 conditions per place. [2023-01-28 00:22:32,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:32,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 892 places, 954 transitions, 2993 flow [2023-01-28 00:22:32,626 INFO L130 PetriNetUnfolder]: 156/1324 cut-off events. [2023-01-28 00:22:32,626 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:22:32,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 1324 events. 156/1324 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4541 event pairs, 0 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1829. Up to 64 conditions per place. [2023-01-28 00:22:32,825 INFO L119 LiptonReduction]: Number of co-enabled transitions 832474 [2023-01-28 00:22:53,651 INFO L134 LiptonReduction]: Checked pairs total: 837671 [2023-01-28 00:22:53,651 INFO L136 LiptonReduction]: Total number of compositions: 1101 [2023-01-28 00:22:53,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:22:53,653 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:22:53,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:22:53,685 INFO L130 PetriNetUnfolder]: 13/277 cut-off events. [2023-01-28 00:22:53,685 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:22:53,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:22:53,686 INFO L208 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:22:53,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:22:53,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:22:53,686 INFO L85 PathProgramCache]: Analyzing trace with hash 554173804, now seen corresponding path program 1 times [2023-01-28 00:22:53,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:22:53,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326602936] [2023-01-28 00:22:53,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:22:53,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:22:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:53,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:22:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:53,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:22:53,749 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:22:53,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:22:53,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-01-28 00:22:53,749 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:22:53,749 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:22:53,749 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:22:53,749 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-01-28 00:22:53,814 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:22:53,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,308 INFO L130 PetriNetUnfolder]: 161/1366 cut-off events. [2023-01-28 00:22:54,308 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:22:54,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1366 events. 161/1366 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4703 event pairs, 0 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 1905. Up to 66 conditions per place. [2023-01-28 00:22:54,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,370 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:54,370 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,370 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 984 transitions, 3120 flow [2023-01-28 00:22:54,917 INFO L130 PetriNetUnfolder]: 161/1366 cut-off events. [2023-01-28 00:22:54,917 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:22:54,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1366 events. 161/1366 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4703 event pairs, 0 based on Foata normal form. 0/1140 useless extension candidates. Maximal degree in co-relation 1905. Up to 66 conditions per place. [2023-01-28 00:22:55,108 INFO L119 LiptonReduction]: Number of co-enabled transitions 887168 [2023-01-28 00:23:15,942 INFO L134 LiptonReduction]: Checked pairs total: 862160 [2023-01-28 00:23:15,942 INFO L136 LiptonReduction]: Total number of compositions: 1121 [2023-01-28 00:23:15,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:23:15,944 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:23:15,944 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:23:15,978 INFO L130 PetriNetUnfolder]: 13/285 cut-off events. [2023-01-28 00:23:15,978 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:23:15,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:23:15,979 INFO L208 CegarLoopForPetriNet]: trace histogram [33, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:23:15,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:23:15,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:23:15,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1324257593, now seen corresponding path program 1 times [2023-01-28 00:23:15,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:23:15,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412548537] [2023-01-28 00:23:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:23:15,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:23:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:16,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:23:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:16,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:23:16,039 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:23:16,039 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:23:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-01-28 00:23:16,039 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:23:16,039 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:23:16,039 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:23:16,039 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-01-28 00:23:16,104 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:23:16,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:16,625 INFO L130 PetriNetUnfolder]: 166/1408 cut-off events. [2023-01-28 00:23:16,626 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:23:16,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 1408 events. 166/1408 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4882 event pairs, 0 based on Foata normal form. 0/1175 useless extension candidates. Maximal degree in co-relation 1982. Up to 68 conditions per place. [2023-01-28 00:23:16,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:16,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:16,693 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:23:16,693 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:16,694 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:16,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 948 places, 1014 transitions, 3249 flow [2023-01-28 00:23:17,261 INFO L130 PetriNetUnfolder]: 166/1408 cut-off events. [2023-01-28 00:23:17,261 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:23:17,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2069 conditions, 1408 events. 166/1408 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 4882 event pairs, 0 based on Foata normal form. 0/1175 useless extension candidates. Maximal degree in co-relation 1982. Up to 68 conditions per place. [2023-01-28 00:23:17,473 INFO L119 LiptonReduction]: Number of co-enabled transitions 943602 [2023-01-28 00:23:39,174 INFO L134 LiptonReduction]: Checked pairs total: 924785 [2023-01-28 00:23:39,174 INFO L136 LiptonReduction]: Total number of compositions: 1159 [2023-01-28 00:23:39,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:23:39,175 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:23:39,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:23:39,212 INFO L130 PetriNetUnfolder]: 11/289 cut-off events. [2023-01-28 00:23:39,212 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:23:39,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:23:39,212 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] [2023-01-28 00:23:39,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:23:39,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:23:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash 19550382, now seen corresponding path program 1 times [2023-01-28 00:23:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:23:39,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978527386] [2023-01-28 00:23:39,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:23:39,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:23:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:39,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:23:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:39,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:23:39,278 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:23:39,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:23:39,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-01-28 00:23:39,278 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:23:39,278 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:23:39,279 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:23:39,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-01-28 00:23:39,339 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:23:39,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:39,920 INFO L130 PetriNetUnfolder]: 171/1450 cut-off events. [2023-01-28 00:23:39,920 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:23:39,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1450 events. 171/1450 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5007 event pairs, 0 based on Foata normal form. 0/1210 useless extension candidates. Maximal degree in co-relation 2060. Up to 70 conditions per place. [2023-01-28 00:23:39,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:40,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:40,007 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:23:40,007 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:40,007 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:40,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 976 places, 1044 transitions, 3380 flow [2023-01-28 00:23:40,630 INFO L130 PetriNetUnfolder]: 171/1450 cut-off events. [2023-01-28 00:23:40,630 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:23:40,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1450 events. 171/1450 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5007 event pairs, 0 based on Foata normal form. 0/1210 useless extension candidates. Maximal degree in co-relation 2060. Up to 70 conditions per place. [2023-01-28 00:23:40,855 INFO L119 LiptonReduction]: Number of co-enabled transitions 1001776 [2023-01-28 00:24:02,863 INFO L134 LiptonReduction]: Checked pairs total: 989122 [2023-01-28 00:24:02,863 INFO L136 LiptonReduction]: Total number of compositions: 1195 [2023-01-28 00:24:02,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:24:02,866 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:24:02,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:24:02,904 INFO L130 PetriNetUnfolder]: 15/305 cut-off events. [2023-01-28 00:24:02,904 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:24:02,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:24:02,905 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 00:24:02,905 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:24:02,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:24:02,905 INFO L85 PathProgramCache]: Analyzing trace with hash -132656256, now seen corresponding path program 1 times [2023-01-28 00:24:02,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:24:02,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240013524] [2023-01-28 00:24:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:24:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:24:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:02,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:24:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:02,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:24:02,990 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:24:02,990 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:24:02,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-01-28 00:24:02,990 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:24:02,990 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:24:02,990 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:24:02,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-01-28 00:24:03,045 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:24:03,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:03,615 INFO L130 PetriNetUnfolder]: 176/1492 cut-off events. [2023-01-28 00:24:03,615 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:24:03,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1492 events. 176/1492 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5236 event pairs, 0 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 2139. Up to 72 conditions per place. [2023-01-28 00:24:03,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:03,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:03,699 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:24:03,699 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:03,699 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:03,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1004 places, 1074 transitions, 3513 flow [2023-01-28 00:24:04,321 INFO L130 PetriNetUnfolder]: 176/1492 cut-off events. [2023-01-28 00:24:04,321 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:24:04,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1492 events. 176/1492 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5236 event pairs, 0 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 2139. Up to 72 conditions per place. [2023-01-28 00:24:04,554 INFO L119 LiptonReduction]: Number of co-enabled transitions 1061690 [2023-01-28 00:24:28,055 INFO L134 LiptonReduction]: Checked pairs total: 1056434 [2023-01-28 00:24:28,055 INFO L136 LiptonReduction]: Total number of compositions: 1235 [2023-01-28 00:24:28,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:24:28,056 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:24:28,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:24:28,096 INFO L130 PetriNetUnfolder]: 12/307 cut-off events. [2023-01-28 00:24:28,096 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:24:28,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:24:28,096 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 00:24:28,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:24:28,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:24:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1996358449, now seen corresponding path program 1 times [2023-01-28 00:24:28,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:24:28,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425615993] [2023-01-28 00:24:28,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:24:28,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:24:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:28,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:24:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:28,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:24:28,189 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:24:28,189 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:24:28,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-01-28 00:24:28,189 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:24:28,189 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:24:28,189 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:24:28,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-01-28 00:24:28,245 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:24:28,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:28,971 INFO L130 PetriNetUnfolder]: 181/1534 cut-off events. [2023-01-28 00:24:28,971 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:24:29,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 1534 events. 181/1534 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5361 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 2219. Up to 74 conditions per place. [2023-01-28 00:24:29,016 INFO L82 GeneralOperation]: Start removeDead. Operand has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:29,032 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:29,033 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:24:29,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:29,033 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:29,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1032 places, 1104 transitions, 3648 flow [2023-01-28 00:24:29,632 INFO L130 PetriNetUnfolder]: 181/1534 cut-off events. [2023-01-28 00:24:29,633 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:24:29,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 1534 events. 181/1534 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5361 event pairs, 0 based on Foata normal form. 0/1280 useless extension candidates. Maximal degree in co-relation 2219. Up to 74 conditions per place. [2023-01-28 00:24:30,101 INFO L119 LiptonReduction]: Number of co-enabled transitions 1123344 [2023-01-28 00:24:55,045 INFO L134 LiptonReduction]: Checked pairs total: 1105309 [2023-01-28 00:24:55,046 INFO L136 LiptonReduction]: Total number of compositions: 1273 [2023-01-28 00:24:55,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:24:55,047 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:24:55,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:24:55,090 INFO L130 PetriNetUnfolder]: 15/321 cut-off events. [2023-01-28 00:24:55,090 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:24:55,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:24:55,090 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 00:24:55,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:24:55,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:24:55,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1431592195, now seen corresponding path program 1 times [2023-01-28 00:24:55,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:24:55,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792480899] [2023-01-28 00:24:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:24:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:24:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:55,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:24:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:24:55,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:24:55,164 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:24:55,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:24:55,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-01-28 00:24:55,165 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:24:55,165 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:24:55,165 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:24:55,165 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-01-28 00:24:55,279 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:24:55,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:55,933 INFO L130 PetriNetUnfolder]: 186/1576 cut-off events. [2023-01-28 00:24:55,934 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:24:56,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 1576 events. 186/1576 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5528 event pairs, 0 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 2300. Up to 76 conditions per place. [2023-01-28 00:24:56,011 INFO L82 GeneralOperation]: Start removeDead. Operand has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:56,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:56,041 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:24:56,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:56,041 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:56,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1060 places, 1134 transitions, 3785 flow [2023-01-28 00:24:56,737 INFO L130 PetriNetUnfolder]: 186/1576 cut-off events. [2023-01-28 00:24:56,738 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:24:56,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 1576 events. 186/1576 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5528 event pairs, 0 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 2300. Up to 76 conditions per place. [2023-01-28 00:24:57,018 INFO L119 LiptonReduction]: Number of co-enabled transitions 1186738 [2023-01-28 00:25:21,252 INFO L134 LiptonReduction]: Checked pairs total: 1155789 [2023-01-28 00:25:21,252 INFO L136 LiptonReduction]: Total number of compositions: 1297 [2023-01-28 00:25:21,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:25:21,254 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:25:21,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:25:21,300 INFO L130 PetriNetUnfolder]: 17/333 cut-off events. [2023-01-28 00:25:21,301 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:25:21,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:25:21,301 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 00:25:21,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:25:21,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:25:21,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1497109344, now seen corresponding path program 1 times [2023-01-28 00:25:21,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:25:21,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576859862] [2023-01-28 00:25:21,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:25:21,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:25:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:25:21,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:25:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:25:21,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:25:21,373 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:25:21,373 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:25:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-01-28 00:25:21,373 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:25:21,374 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:25:21,374 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:25:21,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-01-28 00:25:21,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:25:21,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:22,129 INFO L130 PetriNetUnfolder]: 191/1618 cut-off events. [2023-01-28 00:25:22,129 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:25:22,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1618 events. 191/1618 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5624 event pairs, 0 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 2382. Up to 78 conditions per place. [2023-01-28 00:25:22,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:22,227 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:22,227 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:25:22,227 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:22,228 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:22,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1088 places, 1164 transitions, 3924 flow [2023-01-28 00:25:23,025 INFO L130 PetriNetUnfolder]: 191/1618 cut-off events. [2023-01-28 00:25:23,025 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:25:23,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 1618 events. 191/1618 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5624 event pairs, 0 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 2382. Up to 78 conditions per place. [2023-01-28 00:25:23,297 INFO L119 LiptonReduction]: Number of co-enabled transitions 1251872 [2023-01-28 00:25:49,076 INFO L134 LiptonReduction]: Checked pairs total: 1267181 [2023-01-28 00:25:49,076 INFO L136 LiptonReduction]: Total number of compositions: 1343 [2023-01-28 00:25:49,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:25:49,078 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:25:49,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:25:49,155 INFO L130 PetriNetUnfolder]: 14/335 cut-off events. [2023-01-28 00:25:49,155 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:25:49,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:25:49,155 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 00:25:49,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:25:49,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:25:49,157 INFO L85 PathProgramCache]: Analyzing trace with hash -566313494, now seen corresponding path program 1 times [2023-01-28 00:25:49,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:25:49,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534242651] [2023-01-28 00:25:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:25:49,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:25:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:25:49,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:25:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:25:49,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:25:49,255 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:25:49,255 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:25:49,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-01-28 00:25:49,256 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:25:49,256 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:25:49,256 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:25:49,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-01-28 00:25:49,317 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:25:49,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,043 INFO L130 PetriNetUnfolder]: 196/1660 cut-off events. [2023-01-28 00:25:50,043 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:25:50,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 1660 events. 196/1660 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5846 event pairs, 0 based on Foata normal form. 0/1385 useless extension candidates. Maximal degree in co-relation 2465. Up to 80 conditions per place. [2023-01-28 00:25:50,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,164 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:25:50,165 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,165 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1116 places, 1194 transitions, 4065 flow [2023-01-28 00:25:50,918 INFO L130 PetriNetUnfolder]: 196/1660 cut-off events. [2023-01-28 00:25:50,918 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:25:50,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2558 conditions, 1660 events. 196/1660 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5846 event pairs, 0 based on Foata normal form. 0/1385 useless extension candidates. Maximal degree in co-relation 2465. Up to 80 conditions per place. [2023-01-28 00:25:51,276 INFO L119 LiptonReduction]: Number of co-enabled transitions 1318746 [2023-01-28 00:26:17,675 INFO L134 LiptonReduction]: Checked pairs total: 1312336 [2023-01-28 00:26:17,676 INFO L136 LiptonReduction]: Total number of compositions: 1367 [2023-01-28 00:26:17,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:26:17,677 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:26:17,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:26:17,729 INFO L130 PetriNetUnfolder]: 15/345 cut-off events. [2023-01-28 00:26:17,729 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:26:17,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:26:17,729 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 00:26:17,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:26:17,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:26:17,729 INFO L85 PathProgramCache]: Analyzing trace with hash 477233500, now seen corresponding path program 1 times [2023-01-28 00:26:17,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:26:17,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927333666] [2023-01-28 00:26:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:26:17,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:26:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:26:17,767 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:26:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:26:17,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:26:17,810 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:26:17,810 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:26:17,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-01-28 00:26:17,811 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:26:17,811 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:26:17,811 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:26:17,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-01-28 00:26:17,882 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:26:17,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:18,722 INFO L130 PetriNetUnfolder]: 201/1702 cut-off events. [2023-01-28 00:26:18,722 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:26:18,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2643 conditions, 1702 events. 201/1702 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5892 event pairs, 0 based on Foata normal form. 0/1420 useless extension candidates. Maximal degree in co-relation 2549. Up to 82 conditions per place. [2023-01-28 00:26:18,783 INFO L82 GeneralOperation]: Start removeDead. Operand has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:18,804 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:18,804 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:26:18,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:18,804 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:18,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1144 places, 1224 transitions, 4208 flow [2023-01-28 00:26:19,534 INFO L130 PetriNetUnfolder]: 201/1702 cut-off events. [2023-01-28 00:26:19,535 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:26:19,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2643 conditions, 1702 events. 201/1702 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5892 event pairs, 0 based on Foata normal form. 0/1420 useless extension candidates. Maximal degree in co-relation 2549. Up to 82 conditions per place. [2023-01-28 00:26:20,020 INFO L119 LiptonReduction]: Number of co-enabled transitions 1387360 [2023-01-28 00:26:47,596 INFO L134 LiptonReduction]: Checked pairs total: 1387361 [2023-01-28 00:26:47,597 INFO L136 LiptonReduction]: Total number of compositions: 1406 [2023-01-28 00:26:47,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:26:47,598 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:26:47,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:26:47,651 INFO L130 PetriNetUnfolder]: 14/351 cut-off events. [2023-01-28 00:26:47,651 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:26:47,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:26:47,652 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 00:26:47,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:26:47,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:26:47,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1736629272, now seen corresponding path program 1 times [2023-01-28 00:26:47,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:26:47,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068341662] [2023-01-28 00:26:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:26:47,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:26:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:26:47,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:26:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:26:47,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:26:47,733 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:26:47,733 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:26:47,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-01-28 00:26:47,733 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:26:47,733 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:26:47,733 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:26:47,733 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-01-28 00:26:47,807 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:26:47,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:48,710 INFO L130 PetriNetUnfolder]: 206/1744 cut-off events. [2023-01-28 00:26:48,710 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:26:48,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1744 events. 206/1744 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5999 event pairs, 0 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2634. Up to 84 conditions per place. [2023-01-28 00:26:48,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:48,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:48,791 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:26:48,791 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:48,791 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:48,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1172 places, 1254 transitions, 4353 flow [2023-01-28 00:26:49,608 INFO L130 PetriNetUnfolder]: 206/1744 cut-off events. [2023-01-28 00:26:49,608 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:26:49,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1744 events. 206/1744 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 5999 event pairs, 0 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 2634. Up to 84 conditions per place. [2023-01-28 00:26:50,227 INFO L119 LiptonReduction]: Number of co-enabled transitions 1457714 [2023-01-28 00:27:17,840 INFO L134 LiptonReduction]: Checked pairs total: 1429369 [2023-01-28 00:27:17,841 INFO L136 LiptonReduction]: Total number of compositions: 1439 [2023-01-28 00:27:17,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:27:17,842 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:27:17,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:27:17,893 INFO L130 PetriNetUnfolder]: 10/351 cut-off events. [2023-01-28 00:27:17,894 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:27:17,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:27:17,894 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 00:27:17,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:27:17,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:27:17,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1813723362, now seen corresponding path program 1 times [2023-01-28 00:27:17,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:27:17,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849727045] [2023-01-28 00:27:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:27:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:27:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:27:17,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:27:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:27:17,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:27:17,984 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:27:17,984 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:27:17,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-01-28 00:27:17,984 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:27:17,984 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:27:17,984 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:27:17,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-01-28 00:27:18,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:27:18,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:18,902 INFO L130 PetriNetUnfolder]: 211/1786 cut-off events. [2023-01-28 00:27:18,903 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:27:19,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1786 events. 211/1786 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6230 event pairs, 0 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 2720. Up to 86 conditions per place. [2023-01-28 00:27:19,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:19,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:19,041 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:27:19,041 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:19,041 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:19,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1200 places, 1284 transitions, 4500 flow [2023-01-28 00:27:19,863 INFO L130 PetriNetUnfolder]: 211/1786 cut-off events. [2023-01-28 00:27:19,863 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:27:19,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2816 conditions, 1786 events. 211/1786 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6230 event pairs, 0 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 2720. Up to 86 conditions per place. [2023-01-28 00:27:20,306 INFO L119 LiptonReduction]: Number of co-enabled transitions 1529808 [2023-01-28 00:27:48,431 INFO L134 LiptonReduction]: Checked pairs total: 1486025 [2023-01-28 00:27:48,432 INFO L136 LiptonReduction]: Total number of compositions: 1461 [2023-01-28 00:27:48,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:27:48,433 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:27:48,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:27:48,487 INFO L130 PetriNetUnfolder]: 10/359 cut-off events. [2023-01-28 00:27:48,487 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:27:48,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:27:48,488 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 00:27:48,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:27:48,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:27:48,488 INFO L85 PathProgramCache]: Analyzing trace with hash 81668058, now seen corresponding path program 1 times [2023-01-28 00:27:48,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:27:48,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113473343] [2023-01-28 00:27:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:27:48,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:27:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:27:48,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:27:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:27:48,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:27:48,596 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:27:48,596 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:27:48,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-01-28 00:27:48,596 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:27:48,596 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:27:48,597 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:27:48,597 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-01-28 00:27:48,682 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:27:48,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:49,654 INFO L130 PetriNetUnfolder]: 216/1828 cut-off events. [2023-01-28 00:27:49,654 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:27:49,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 1828 events. 216/1828 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6385 event pairs, 0 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 2807. Up to 88 conditions per place. [2023-01-28 00:27:49,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:49,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:49,744 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:27:49,744 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:49,744 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:49,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1228 places, 1314 transitions, 4649 flow [2023-01-28 00:27:50,598 INFO L130 PetriNetUnfolder]: 216/1828 cut-off events. [2023-01-28 00:27:50,598 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:27:50,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2904 conditions, 1828 events. 216/1828 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6385 event pairs, 0 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 2807. Up to 88 conditions per place. [2023-01-28 00:27:51,125 INFO L119 LiptonReduction]: Number of co-enabled transitions 1603642 [2023-01-28 00:28:20,878 INFO L134 LiptonReduction]: Checked pairs total: 1571686 [2023-01-28 00:28:20,878 INFO L136 LiptonReduction]: Total number of compositions: 1510 [2023-01-28 00:28:20,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:28:20,880 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;@16bb1806, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:28:20,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:28:20,938 INFO L130 PetriNetUnfolder]: 11/369 cut-off events. [2023-01-28 00:28:20,938 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:28:20,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:28:20,938 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 00:28:20,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:28:20,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:28:20,938 INFO L85 PathProgramCache]: Analyzing trace with hash 161543572, now seen corresponding path program 1 times [2023-01-28 00:28:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:28:20,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34817030] [2023-01-28 00:28:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:28:20,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:28:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:28:20,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:28:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:28:21,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:28:21,041 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:28:21,042 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:28:21,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-01-28 00:28:21,042 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:28:21,042 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:28:21,042 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:28:21,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-01-28 00:28:21,112 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:28:21,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:22,045 INFO L130 PetriNetUnfolder]: 221/1870 cut-off events. [2023-01-28 00:28:22,046 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:28:22,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2993 conditions, 1870 events. 221/1870 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6527 event pairs, 0 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 2895. Up to 90 conditions per place. [2023-01-28 00:28:22,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:22,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:22,206 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:28:22,206 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:22,207 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:22,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1256 places, 1344 transitions, 4800 flow [2023-01-28 00:28:23,129 INFO L130 PetriNetUnfolder]: 221/1870 cut-off events. [2023-01-28 00:28:23,130 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:28:23,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2993 conditions, 1870 events. 221/1870 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 6527 event pairs, 0 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 2895. Up to 90 conditions per place. [2023-01-28 00:28:23,644 INFO L119 LiptonReduction]: Number of co-enabled transitions 1679216 Received shutdown request... [2023-01-28 00:28:43,177 WARN L238 SmtUtils]: Removed 10 from assertion stack [2023-01-28 00:28:43,177 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-01-28 00:28:43,178 INFO L158 Benchmark]: Toolchain (without parser) took 694949.14ms. Allocated memory was 331.4MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 290.0MB in the beginning and 591.4MB in the end (delta: -301.4MB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2023-01-28 00:28:43,178 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 212.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:28:43,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.84ms. Allocated memory is still 331.4MB. Free memory was 290.0MB in the beginning and 270.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 00:28:43,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.73ms. Allocated memory is still 331.4MB. Free memory was 270.8MB in the beginning and 269.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:28:43,179 INFO L158 Benchmark]: Boogie Preprocessor took 35.22ms. Allocated memory is still 331.4MB. Free memory was 269.1MB in the beginning and 267.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:28:43,179 INFO L158 Benchmark]: RCFGBuilder took 318.95ms. Allocated memory is still 331.4MB. Free memory was 267.7MB in the beginning and 254.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 00:28:43,179 INFO L158 Benchmark]: TraceAbstraction took 694223.04ms. Allocated memory was 331.4MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 253.6MB in the beginning and 591.4MB in the end (delta: -337.8MB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. [2023-01-28 00:28:43,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 255.9MB. Free memory is still 212.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 336.84ms. Allocated memory is still 331.4MB. Free memory was 290.0MB in the beginning and 270.8MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.73ms. Allocated memory is still 331.4MB. Free memory was 270.8MB in the beginning and 269.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.22ms. Allocated memory is still 331.4MB. Free memory was 269.1MB in the beginning and 267.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 318.95ms. Allocated memory is still 331.4MB. Free memory was 267.7MB in the beginning and 254.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 694223.04ms. Allocated memory was 331.4MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 253.6MB in the beginning and 591.4MB in the end (delta: -337.8MB). Peak memory consumption was 2.2GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 52 PlacesBefore, 11 PlacesAfterwards, 54 TransitionsBefore, 8 TransitionsAfterwards, 754 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 5 ChoiceCompositions, 54 TotalNumberOfCompositions, 611 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 611, independent: 611, independent conditional: 0, independent unconditional: 611, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 372, independent: 372, independent conditional: 0, independent unconditional: 372, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 611, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 372, unknown conditional: 0, unknown unconditional: 372] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 80 PlacesBefore, 21 PlacesAfterwards, 84 TransitionsBefore, 18 TransitionsAfterwards, 3248 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 7 ChoiceCompositions, 87 TotalNumberOfCompositions, 3080 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2720, independent: 2686, independent conditional: 0, independent unconditional: 2686, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1704, independent: 1684, independent conditional: 0, independent unconditional: 1684, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2720, independent: 1002, independent conditional: 0, independent unconditional: 1002, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 1704, unknown conditional: 0, unknown unconditional: 1704] , Statistics on independence cache: Total cache size (in pairs): 29, Positive cache size: 22, Positive conditional cache size: 0, Positive unconditional cache size: 22, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 108 PlacesBefore, 25 PlacesAfterwards, 114 TransitionsBefore, 18 TransitionsAfterwards, 7482 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 85 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 13 ChoiceCompositions, 123 TotalNumberOfCompositions, 6877 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6239, independent: 6207, independent conditional: 0, independent unconditional: 6207, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3828, independent: 3810, independent conditional: 0, independent unconditional: 3810, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6239, independent: 2397, independent conditional: 0, independent unconditional: 2397, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 3828, unknown conditional: 0, unknown unconditional: 3828] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 136 PlacesBefore, 31 PlacesAfterwards, 144 TransitionsBefore, 22 TransitionsAfterwards, 13456 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 110 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 17 ChoiceCompositions, 156 TotalNumberOfCompositions, 12143 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11067, independent: 11023, independent conditional: 0, independent unconditional: 11023, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6919, independent: 6891, independent conditional: 0, independent unconditional: 6891, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11067, independent: 4132, independent conditional: 0, independent unconditional: 4132, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 6919, unknown conditional: 0, unknown unconditional: 6919] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 34, Positive conditional cache size: 0, Positive unconditional cache size: 34, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 164 PlacesBefore, 38 PlacesAfterwards, 174 TransitionsBefore, 28 TransitionsAfterwards, 21170 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 20 ChoiceCompositions, 195 TotalNumberOfCompositions, 21309 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18757, independent: 18686, independent conditional: 0, independent unconditional: 18686, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10942, independent: 10906, independent conditional: 0, independent unconditional: 10906, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18757, independent: 7780, independent conditional: 0, independent unconditional: 7780, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 10942, unknown conditional: 0, unknown unconditional: 10942] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 192 PlacesBefore, 46 PlacesAfterwards, 204 TransitionsBefore, 36 TransitionsAfterwards, 30624 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 163 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 22 ChoiceCompositions, 221 TotalNumberOfCompositions, 28756 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24750, independent: 24653, independent conditional: 0, independent unconditional: 24653, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14802, independent: 14746, independent conditional: 0, independent unconditional: 14746, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 24750, independent: 9907, independent conditional: 0, independent unconditional: 9907, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 14802, unknown conditional: 0, unknown unconditional: 14802] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 114, Positive conditional cache size: 0, Positive unconditional cache size: 114, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 220 PlacesBefore, 51 PlacesAfterwards, 234 TransitionsBefore, 38 TransitionsAfterwards, 41818 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 201 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 27 ChoiceCompositions, 265 TotalNumberOfCompositions, 41157 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36181, independent: 36082, independent conditional: 0, independent unconditional: 36082, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21138, independent: 21074, independent conditional: 0, independent unconditional: 21074, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36181, independent: 15008, independent conditional: 0, independent unconditional: 15008, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 21138, unknown conditional: 0, unknown unconditional: 21138] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 248 PlacesBefore, 57 PlacesAfterwards, 264 TransitionsBefore, 42 TransitionsAfterwards, 54752 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 222 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 34 ConcurrentYvCompositions, 31 ChoiceCompositions, 297 TotalNumberOfCompositions, 55579 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48091, independent: 47955, independent conditional: 0, independent unconditional: 47955, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 28118, independent: 28051, independent conditional: 0, independent unconditional: 28051, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 48091, independent: 19904, independent conditional: 0, independent unconditional: 19904, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 28118, unknown conditional: 0, unknown unconditional: 28118] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 276 PlacesBefore, 63 PlacesAfterwards, 294 TransitionsBefore, 46 TransitionsAfterwards, 69426 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 253 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 35 ChoiceCompositions, 329 TotalNumberOfCompositions, 68030 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 59069, independent: 58944, independent conditional: 0, independent unconditional: 58944, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 34377, independent: 34297, independent conditional: 0, independent unconditional: 34297, dependent: 80, dependent conditional: 0, dependent unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 59069, independent: 24647, independent conditional: 0, independent unconditional: 24647, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 34377, unknown conditional: 0, unknown unconditional: 34377] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 166, Positive conditional cache size: 0, Positive unconditional cache size: 166, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 304 PlacesBefore, 73 PlacesAfterwards, 324 TransitionsBefore, 58 TransitionsAfterwards, 85840 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 275 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 42 ConcurrentYvCompositions, 35 ChoiceCompositions, 362 TotalNumberOfCompositions, 83168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72699, independent: 72547, independent conditional: 0, independent unconditional: 72547, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 42409, independent: 42310, independent conditional: 0, independent unconditional: 42310, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 72699, independent: 30237, independent conditional: 0, independent unconditional: 30237, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 42409, unknown conditional: 0, unknown unconditional: 42409] , Statistics on independence cache: Total cache size (in pairs): 305, Positive cache size: 274, Positive conditional cache size: 0, Positive unconditional cache size: 274, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 332 PlacesBefore, 76 PlacesAfterwards, 354 TransitionsBefore, 56 TransitionsAfterwards, 103994 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 298 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 40 ConcurrentYvCompositions, 42 ChoiceCompositions, 390 TotalNumberOfCompositions, 93914 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85401, independent: 85279, independent conditional: 0, independent unconditional: 85279, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 50423, independent: 50319, independent conditional: 0, independent unconditional: 50319, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 85401, independent: 34960, independent conditional: 0, independent unconditional: 34960, dependent: 18, dependent conditional: 0, dependent unconditional: 18, unknown: 50423, unknown conditional: 0, unknown unconditional: 50423] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 289, Positive conditional cache size: 0, Positive unconditional cache size: 289, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.7s, 360 PlacesBefore, 84 PlacesAfterwards, 384 TransitionsBefore, 64 TransitionsAfterwards, 123888 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 335 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 46 ConcurrentYvCompositions, 44 ChoiceCompositions, 435 TotalNumberOfCompositions, 121829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106069, independent: 105872, independent conditional: 0, independent unconditional: 105872, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 61339, independent: 61245, independent conditional: 0, independent unconditional: 61245, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 106069, independent: 44627, independent conditional: 0, independent unconditional: 44627, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 61339, unknown conditional: 0, unknown unconditional: 61339] , Statistics on independence cache: Total cache size (in pairs): 371, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1s, 388 PlacesBefore, 88 PlacesAfterwards, 414 TransitionsBefore, 64 TransitionsAfterwards, 145522 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 347 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 61 ConcurrentYvCompositions, 50 ChoiceCompositions, 468 TotalNumberOfCompositions, 143189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123973, independent: 123774, independent conditional: 0, independent unconditional: 123774, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 74444, independent: 74333, independent conditional: 0, independent unconditional: 74333, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 123973, independent: 49441, independent conditional: 0, independent unconditional: 49441, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 74444, unknown conditional: 0, unknown unconditional: 74444] , Statistics on independence cache: Total cache size (in pairs): 345, Positive cache size: 309, Positive conditional cache size: 0, Positive unconditional cache size: 309, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 416 PlacesBefore, 97 PlacesAfterwards, 444 TransitionsBefore, 74 TransitionsAfterwards, 168896 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 382 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 57 ConcurrentYvCompositions, 51 ChoiceCompositions, 500 TotalNumberOfCompositions, 159671 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141429, independent: 141240, independent conditional: 0, independent unconditional: 141240, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 84249, independent: 84119, independent conditional: 0, independent unconditional: 84119, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 141429, independent: 57121, independent conditional: 0, independent unconditional: 57121, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 84249, unknown conditional: 0, unknown unconditional: 84249] , Statistics on independence cache: Total cache size (in pairs): 488, Positive cache size: 449, Positive conditional cache size: 0, Positive unconditional cache size: 449, 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: 9.8s, 444 PlacesBefore, 102 PlacesAfterwards, 474 TransitionsBefore, 76 TransitionsAfterwards, 194010 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 407 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 60 ConcurrentYvCompositions, 56 ChoiceCompositions, 533 TotalNumberOfCompositions, 190692 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 164902, independent: 164668, independent conditional: 0, independent unconditional: 164668, dependent: 234, dependent conditional: 0, dependent unconditional: 234, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 97310, independent: 97201, independent conditional: 0, independent unconditional: 97201, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 164902, independent: 67467, independent conditional: 0, independent unconditional: 67467, dependent: 125, dependent conditional: 0, dependent unconditional: 125, unknown: 97310, unknown conditional: 0, unknown unconditional: 97310] , Statistics on independence cache: Total cache size (in pairs): 518, Positive cache size: 479, Positive conditional cache size: 0, Positive unconditional cache size: 479, 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: 10.6s, 472 PlacesBefore, 107 PlacesAfterwards, 504 TransitionsBefore, 78 TransitionsAfterwards, 220864 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 431 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 62 ConcurrentYvCompositions, 61 ChoiceCompositions, 564 TotalNumberOfCompositions, 209614 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 183686, independent: 183485, independent conditional: 0, independent unconditional: 183485, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 108155, independent: 108027, independent conditional: 0, independent unconditional: 108027, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 183686, independent: 75458, independent conditional: 0, independent unconditional: 75458, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 108155, unknown conditional: 0, unknown unconditional: 108155] , Statistics on independence cache: Total cache size (in pairs): 570, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.2s, 500 PlacesBefore, 115 PlacesAfterwards, 534 TransitionsBefore, 86 TransitionsAfterwards, 249458 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 465 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 69 ConcurrentYvCompositions, 63 ChoiceCompositions, 607 TotalNumberOfCompositions, 245115 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 212787, independent: 212537, independent conditional: 0, independent unconditional: 212537, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 124877, independent: 124720, independent conditional: 0, independent unconditional: 124720, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 212787, independent: 87817, independent conditional: 0, independent unconditional: 87817, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 124877, unknown conditional: 0, unknown unconditional: 124877] , Statistics on independence cache: Total cache size (in pairs): 637, Positive cache size: 592, Positive conditional cache size: 0, Positive unconditional cache size: 592, 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: 12.3s, 528 PlacesBefore, 122 PlacesAfterwards, 564 TransitionsBefore, 92 TransitionsAfterwards, 279792 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 499 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 70 ConcurrentYvCompositions, 66 ChoiceCompositions, 645 TotalNumberOfCompositions, 278769 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 241906, independent: 241638, independent conditional: 0, independent unconditional: 241638, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 141673, independent: 141500, independent conditional: 0, independent unconditional: 141500, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 241906, independent: 100138, independent conditional: 0, independent unconditional: 100138, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 141673, unknown conditional: 0, unknown unconditional: 141673] , Statistics on independence cache: Total cache size (in pairs): 764, Positive cache size: 715, Positive conditional cache size: 0, Positive unconditional cache size: 715, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 556 PlacesBefore, 125 PlacesAfterwards, 594 TransitionsBefore, 90 TransitionsAfterwards, 311866 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 507 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 79 ConcurrentYvCompositions, 73 ChoiceCompositions, 669 TotalNumberOfCompositions, 291794 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 259283, independent: 259046, independent conditional: 0, independent unconditional: 259046, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 153308, independent: 153162, independent conditional: 0, independent unconditional: 153162, dependent: 146, dependent conditional: 0, dependent unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 259283, independent: 105884, independent conditional: 0, independent unconditional: 105884, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 153308, unknown conditional: 0, unknown unconditional: 153308] , Statistics on independence cache: Total cache size (in pairs): 697, Positive cache size: 652, Positive conditional cache size: 0, Positive unconditional cache size: 652, 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: 13.6s, 584 PlacesBefore, 136 PlacesAfterwards, 624 TransitionsBefore, 104 TransitionsAfterwards, 345680 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 82 ConcurrentYvCompositions, 72 ChoiceCompositions, 717 TotalNumberOfCompositions, 340180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 297578, independent: 297293, independent conditional: 0, independent unconditional: 297293, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 174966, independent: 174787, independent conditional: 0, independent unconditional: 174787, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 297578, independent: 122506, independent conditional: 0, independent unconditional: 122506, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 174966, unknown conditional: 0, unknown unconditional: 174966] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 889, Positive conditional cache size: 0, Positive unconditional cache size: 889, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1s, 612 PlacesBefore, 140 PlacesAfterwards, 654 TransitionsBefore, 104 TransitionsAfterwards, 381234 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 569 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 86 ConcurrentYvCompositions, 78 ChoiceCompositions, 743 TotalNumberOfCompositions, 367072 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 323153, independent: 322864, independent conditional: 0, independent unconditional: 322864, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 189364, independent: 189159, independent conditional: 0, independent unconditional: 189159, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 323153, independent: 133705, independent conditional: 0, independent unconditional: 133705, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 189364, unknown conditional: 0, unknown unconditional: 189364] , Statistics on independence cache: Total cache size (in pairs): 951, Positive cache size: 895, Positive conditional cache size: 0, Positive unconditional cache size: 895, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0s, 640 PlacesBefore, 144 PlacesAfterwards, 684 TransitionsBefore, 104 TransitionsAfterwards, 418528 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 590 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 87 ConcurrentYvCompositions, 84 ChoiceCompositions, 771 TotalNumberOfCompositions, 398248 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 351492, independent: 351213, independent conditional: 0, independent unconditional: 351213, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 208124, independent: 207937, independent conditional: 0, independent unconditional: 207937, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 351492, independent: 143276, independent conditional: 0, independent unconditional: 143276, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 208124, unknown conditional: 0, unknown unconditional: 208124] , Statistics on independence cache: Total cache size (in pairs): 962, Positive cache size: 909, Positive conditional cache size: 0, Positive unconditional cache size: 909, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.5s, 668 PlacesBefore, 151 PlacesAfterwards, 714 TransitionsBefore, 110 TransitionsAfterwards, 457562 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 617 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 85 ConcurrentYvCompositions, 87 ChoiceCompositions, 799 TotalNumberOfCompositions, 438282 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 384357, independent: 384053, independent conditional: 0, independent unconditional: 384053, dependent: 304, dependent conditional: 0, dependent unconditional: 304, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 227629, independent: 227435, independent conditional: 0, independent unconditional: 227435, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 384357, independent: 156618, independent conditional: 0, independent unconditional: 156618, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 227629, unknown conditional: 0, unknown unconditional: 227629] , Statistics on independence cache: Total cache size (in pairs): 1102, Positive cache size: 1045, Positive conditional cache size: 0, Positive unconditional cache size: 1045, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.1s, 696 PlacesBefore, 156 PlacesAfterwards, 744 TransitionsBefore, 112 TransitionsAfterwards, 498336 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 647 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 92 ChoiceCompositions, 847 TotalNumberOfCompositions, 481809 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 422605, independent: 422290, independent conditional: 0, independent unconditional: 422290, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 250583, independent: 250367, independent conditional: 0, independent unconditional: 250367, dependent: 216, dependent conditional: 0, dependent unconditional: 216, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 422605, independent: 171923, independent conditional: 0, independent unconditional: 171923, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 250583, unknown conditional: 0, unknown unconditional: 250583] , Statistics on independence cache: Total cache size (in pairs): 1140, Positive cache size: 1082, Positive conditional cache size: 0, Positive unconditional cache size: 1082, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.8s, 724 PlacesBefore, 164 PlacesAfterwards, 774 TransitionsBefore, 120 TransitionsAfterwards, 540850 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 662 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 111 ConcurrentYvCompositions, 94 ChoiceCompositions, 877 TotalNumberOfCompositions, 527315 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 454632, independent: 454233, independent conditional: 0, independent unconditional: 454233, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 269811, independent: 269588, independent conditional: 0, independent unconditional: 269588, dependent: 223, dependent conditional: 0, dependent unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 454632, independent: 184645, independent conditional: 0, independent unconditional: 184645, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 269811, unknown conditional: 0, unknown unconditional: 269811] , Statistics on independence cache: Total cache size (in pairs): 1233, Positive cache size: 1171, Positive conditional cache size: 0, Positive unconditional cache size: 1171, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.9s, 752 PlacesBefore, 170 PlacesAfterwards, 804 TransitionsBefore, 124 TransitionsAfterwards, 585104 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 711 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 99 ConcurrentYvCompositions, 98 ChoiceCompositions, 918 TotalNumberOfCompositions, 566325 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 497948, independent: 497615, independent conditional: 0, independent unconditional: 497615, dependent: 333, dependent conditional: 0, dependent unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 292353, independent: 292140, independent conditional: 0, independent unconditional: 292140, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 497948, independent: 205475, independent conditional: 0, independent unconditional: 205475, dependent: 120, dependent conditional: 0, dependent unconditional: 120, unknown: 292353, unknown conditional: 0, unknown unconditional: 292353] , Statistics on independence cache: Total cache size (in pairs): 1464, Positive cache size: 1390, Positive conditional cache size: 0, Positive unconditional cache size: 1390, 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: 18.5s, 780 PlacesBefore, 174 PlacesAfterwards, 834 TransitionsBefore, 124 TransitionsAfterwards, 631098 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 104 ConcurrentYvCompositions, 104 ChoiceCompositions, 955 TotalNumberOfCompositions, 627141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 543072, independent: 542667, independent conditional: 0, independent unconditional: 542667, dependent: 405, dependent conditional: 0, dependent unconditional: 405, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 317137, independent: 316908, independent conditional: 0, independent unconditional: 316908, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 543072, independent: 225759, independent conditional: 0, independent unconditional: 225759, dependent: 176, dependent conditional: 0, dependent unconditional: 176, unknown: 317137, unknown conditional: 0, unknown unconditional: 317137] , Statistics on independence cache: Total cache size (in pairs): 1400, Positive cache size: 1337, Positive conditional cache size: 0, Positive unconditional cache size: 1337, Negative cache size: 63, Negative conditional cache size: 0, Negative unconditional cache size: 63, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.5s, 808 PlacesBefore, 181 PlacesAfterwards, 864 TransitionsBefore, 130 TransitionsAfterwards, 678832 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 744 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 116 ConcurrentYvCompositions, 107 ChoiceCompositions, 977 TotalNumberOfCompositions, 646909 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 570074, independent: 569709, independent conditional: 0, independent unconditional: 569709, dependent: 365, dependent conditional: 0, dependent unconditional: 365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 341211, independent: 340961, independent conditional: 0, independent unconditional: 340961, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 570074, independent: 228748, independent conditional: 0, independent unconditional: 228748, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 341211, unknown conditional: 0, unknown unconditional: 341211] , Statistics on independence cache: Total cache size (in pairs): 1518, Positive cache size: 1452, Positive conditional cache size: 0, Positive unconditional cache size: 1452, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4s, 836 PlacesBefore, 195 PlacesAfterwards, 894 TransitionsBefore, 150 TransitionsAfterwards, 728306 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 805 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 110 ConcurrentYvCompositions, 103 ChoiceCompositions, 1028 TotalNumberOfCompositions, 724552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 618185, independent: 617704, independent conditional: 0, independent unconditional: 617704, dependent: 481, dependent conditional: 0, dependent unconditional: 481, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 360481, independent: 360246, independent conditional: 0, independent unconditional: 360246, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 618185, independent: 257458, independent conditional: 0, independent unconditional: 257458, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 360481, unknown conditional: 0, unknown unconditional: 360481] , Statistics on independence cache: Total cache size (in pairs): 1850, Positive cache size: 1766, Positive conditional cache size: 0, Positive unconditional cache size: 1766, Negative cache size: 84, Negative conditional cache size: 0, Negative unconditional cache size: 84, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.8s, 864 PlacesBefore, 199 PlacesAfterwards, 924 TransitionsBefore, 150 TransitionsAfterwards, 779520 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 812 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 109 ChoiceCompositions, 1056 TotalNumberOfCompositions, 765136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 656310, independent: 655883, independent conditional: 0, independent unconditional: 655883, dependent: 427, dependent conditional: 0, dependent unconditional: 427, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 391470, independent: 391214, independent conditional: 0, independent unconditional: 391214, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 656310, independent: 264669, independent conditional: 0, independent unconditional: 264669, dependent: 171, dependent conditional: 0, dependent unconditional: 171, unknown: 391470, unknown conditional: 0, unknown unconditional: 391470] , Statistics on independence cache: Total cache size (in pairs): 1809, Positive cache size: 1726, Positive conditional cache size: 0, Positive unconditional cache size: 1726, Negative cache size: 83, Negative conditional cache size: 0, Negative unconditional cache size: 83, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.5s, 892 PlacesBefore, 206 PlacesAfterwards, 954 TransitionsBefore, 156 TransitionsAfterwards, 832474 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 847 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 132 ConcurrentYvCompositions, 112 ChoiceCompositions, 1101 TotalNumberOfCompositions, 837671 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 716829, independent: 716303, independent conditional: 0, independent unconditional: 716303, dependent: 526, dependent conditional: 0, dependent unconditional: 526, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 420093, independent: 419817, independent conditional: 0, independent unconditional: 419817, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 716829, independent: 296486, independent conditional: 0, independent unconditional: 296486, dependent: 250, dependent conditional: 0, dependent unconditional: 250, unknown: 420093, unknown conditional: 0, unknown unconditional: 420093] , Statistics on independence cache: Total cache size (in pairs): 2019, Positive cache size: 1932, Positive conditional cache size: 0, Positive unconditional cache size: 1932, Negative cache size: 87, Negative conditional cache size: 0, Negative unconditional cache size: 87, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.6s, 920 PlacesBefore, 212 PlacesAfterwards, 984 TransitionsBefore, 160 TransitionsAfterwards, 887168 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 870 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 116 ChoiceCompositions, 1121 TotalNumberOfCompositions, 862160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 748621, independent: 748174, independent conditional: 0, independent unconditional: 748174, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 437122, independent: 436811, independent conditional: 0, independent unconditional: 436811, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 748621, independent: 311363, independent conditional: 0, independent unconditional: 311363, dependent: 136, dependent conditional: 0, dependent unconditional: 136, unknown: 437122, unknown conditional: 0, unknown unconditional: 437122] , Statistics on independence cache: Total cache size (in pairs): 2141, Positive cache size: 2053, Positive conditional cache size: 0, Positive unconditional cache size: 2053, 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: 22.5s, 948 PlacesBefore, 216 PlacesAfterwards, 1014 TransitionsBefore, 160 TransitionsAfterwards, 943602 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 894 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 133 ConcurrentYvCompositions, 122 ChoiceCompositions, 1159 TotalNumberOfCompositions, 924785 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 804955, independent: 804428, independent conditional: 0, independent unconditional: 804428, dependent: 527, dependent conditional: 0, dependent unconditional: 527, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 467478, independent: 467196, independent conditional: 0, independent unconditional: 467196, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 804955, independent: 337232, independent conditional: 0, independent unconditional: 337232, dependent: 245, dependent conditional: 0, dependent unconditional: 245, unknown: 467478, unknown conditional: 0, unknown unconditional: 467478] , Statistics on independence cache: Total cache size (in pairs): 2258, Positive cache size: 2171, Positive conditional cache size: 0, Positive unconditional cache size: 2171, Negative cache size: 87, Negative conditional cache size: 0, Negative unconditional cache size: 87, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.9s, 976 PlacesBefore, 226 PlacesAfterwards, 1044 TransitionsBefore, 172 TransitionsAfterwards, 1001776 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 933 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 130 ConcurrentYvCompositions, 122 ChoiceCompositions, 1195 TotalNumberOfCompositions, 989122 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 858295, independent: 857738, independent conditional: 0, independent unconditional: 857738, dependent: 557, dependent conditional: 0, dependent unconditional: 557, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 492025, independent: 491647, independent conditional: 0, independent unconditional: 491647, dependent: 378, dependent conditional: 0, dependent unconditional: 378, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 858295, independent: 366091, independent conditional: 0, independent unconditional: 366091, dependent: 179, dependent conditional: 0, dependent unconditional: 179, unknown: 492025, unknown conditional: 0, unknown unconditional: 492025] , Statistics on independence cache: Total cache size (in pairs): 2427, Positive cache size: 2240, Positive conditional cache size: 0, Positive unconditional cache size: 2240, 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: 24.4s, 1004 PlacesBefore, 229 PlacesAfterwards, 1074 TransitionsBefore, 170 TransitionsAfterwards, 1061690 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 953 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 143 ConcurrentYvCompositions, 129 ChoiceCompositions, 1235 TotalNumberOfCompositions, 1056434 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 923060, independent: 922503, independent conditional: 0, independent unconditional: 922503, dependent: 557, dependent conditional: 0, dependent unconditional: 557, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 533914, independent: 533597, independent conditional: 0, independent unconditional: 533597, dependent: 317, dependent conditional: 0, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 923060, independent: 388906, independent conditional: 0, independent unconditional: 388906, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 533914, unknown conditional: 0, unknown unconditional: 533914] , Statistics on independence cache: Total cache size (in pairs): 2812, Positive cache size: 2719, Positive conditional cache size: 0, Positive unconditional cache size: 2719, 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: 26.0s, 1032 PlacesBefore, 238 PlacesAfterwards, 1104 TransitionsBefore, 180 TransitionsAfterwards, 1123344 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 972 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 130 ChoiceCompositions, 1273 TotalNumberOfCompositions, 1105309 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 956921, independent: 956431, independent conditional: 0, independent unconditional: 956431, dependent: 490, dependent conditional: 0, dependent unconditional: 490, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 573191, independent: 572874, independent conditional: 0, independent unconditional: 572874, dependent: 317, dependent conditional: 0, dependent unconditional: 317, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 956921, independent: 383557, independent conditional: 0, independent unconditional: 383557, dependent: 173, dependent conditional: 0, dependent unconditional: 173, unknown: 573191, unknown conditional: 0, unknown unconditional: 573191] , Statistics on independence cache: Total cache size (in pairs): 2721, Positive cache size: 2621, Positive conditional cache size: 0, Positive unconditional cache size: 2621, Negative cache size: 100, Negative conditional cache size: 0, Negative unconditional cache size: 100, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2s, 1060 PlacesBefore, 246 PlacesAfterwards, 1134 TransitionsBefore, 188 TransitionsAfterwards, 1186738 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 1006 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 149 ConcurrentYvCompositions, 132 ChoiceCompositions, 1297 TotalNumberOfCompositions, 1155789 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1009672, independent: 1009141, independent conditional: 0, independent unconditional: 1009141, dependent: 531, dependent conditional: 0, dependent unconditional: 531, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 597361, independent: 597035, independent conditional: 0, independent unconditional: 597035, dependent: 326, dependent conditional: 0, dependent unconditional: 326, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1009672, independent: 412106, independent conditional: 0, independent unconditional: 412106, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 597361, unknown conditional: 0, unknown unconditional: 597361] , Statistics on independence cache: Total cache size (in pairs): 3056, Positive cache size: 2948, Positive conditional cache size: 0, Positive unconditional cache size: 2948, Negative cache size: 108, Negative conditional cache size: 0, Negative unconditional cache size: 108, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.8s, 1088 PlacesBefore, 249 PlacesAfterwards, 1164 TransitionsBefore, 186 TransitionsAfterwards, 1251872 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1046 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 148 ConcurrentYvCompositions, 139 ChoiceCompositions, 1343 TotalNumberOfCompositions, 1267181 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081974, independent: 1081325, independent conditional: 0, independent unconditional: 1081325, dependent: 649, dependent conditional: 0, dependent unconditional: 649, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 629343, independent: 629005, independent conditional: 0, independent unconditional: 629005, dependent: 338, dependent conditional: 0, dependent unconditional: 338, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081974, independent: 452320, independent conditional: 0, independent unconditional: 452320, dependent: 311, dependent conditional: 0, dependent unconditional: 311, unknown: 629343, unknown conditional: 0, unknown unconditional: 629343] , Statistics on independence cache: Total cache size (in pairs): 2865, Positive cache size: 2763, Positive conditional cache size: 0, Positive unconditional cache size: 2763, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.5s, 1116 PlacesBefore, 256 PlacesAfterwards, 1194 TransitionsBefore, 192 TransitionsAfterwards, 1318746 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1062 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 153 ConcurrentYvCompositions, 142 ChoiceCompositions, 1367 TotalNumberOfCompositions, 1312336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1133458, independent: 1132806, independent conditional: 0, independent unconditional: 1132806, dependent: 652, dependent conditional: 0, dependent unconditional: 652, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 658683, independent: 658316, independent conditional: 0, independent unconditional: 658316, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1133458, independent: 474490, independent conditional: 0, independent unconditional: 474490, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 658683, unknown conditional: 0, unknown unconditional: 658683] , Statistics on independence cache: Total cache size (in pairs): 3113, Positive cache size: 2989, Positive conditional cache size: 0, Positive unconditional cache size: 2989, Negative cache size: 124, Negative conditional cache size: 0, Negative unconditional cache size: 124, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.8s, 1144 PlacesBefore, 261 PlacesAfterwards, 1224 TransitionsBefore, 194 TransitionsAfterwards, 1387360 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1084 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 165 ConcurrentYvCompositions, 147 ChoiceCompositions, 1406 TotalNumberOfCompositions, 1387361 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1181075, independent: 1180416, independent conditional: 0, independent unconditional: 1180416, dependent: 659, dependent conditional: 0, dependent unconditional: 659, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 695121, independent: 694782, independent conditional: 0, independent unconditional: 694782, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1181075, independent: 485634, independent conditional: 0, independent unconditional: 485634, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 695121, unknown conditional: 0, unknown unconditional: 695121] , Statistics on independence cache: Total cache size (in pairs): 3204, Positive cache size: 3097, Positive conditional cache size: 0, Positive unconditional cache size: 3097, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.0s, 1172 PlacesBefore, 263 PlacesAfterwards, 1254 TransitionsBefore, 190 TransitionsAfterwards, 1457714 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1122 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 155 ChoiceCompositions, 1439 TotalNumberOfCompositions, 1429369 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1235383, independent: 1234732, independent conditional: 0, independent unconditional: 1234732, dependent: 651, dependent conditional: 0, dependent unconditional: 651, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 717117, independent: 716732, independent conditional: 0, independent unconditional: 716732, dependent: 385, dependent conditional: 0, dependent unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1235383, independent: 518000, independent conditional: 0, independent unconditional: 518000, dependent: 266, dependent conditional: 0, dependent unconditional: 266, unknown: 717117, unknown conditional: 0, unknown unconditional: 717117] , Statistics on independence cache: Total cache size (in pairs): 3138, Positive cache size: 3036, Positive conditional cache size: 0, Positive unconditional cache size: 3036, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.4s, 1200 PlacesBefore, 269 PlacesAfterwards, 1284 TransitionsBefore, 194 TransitionsAfterwards, 1529808 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1135 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 157 ConcurrentYvCompositions, 159 ChoiceCompositions, 1461 TotalNumberOfCompositions, 1486025 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1294607, independent: 1293946, independent conditional: 0, independent unconditional: 1293946, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 758409, independent: 758056, independent conditional: 0, independent unconditional: 758056, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1294607, independent: 535890, independent conditional: 0, independent unconditional: 535890, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 758409, unknown conditional: 0, unknown unconditional: 758409] , Statistics on independence cache: Total cache size (in pairs): 3299, Positive cache size: 3195, Positive conditional cache size: 0, Positive unconditional cache size: 3195, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1s, 1228 PlacesBefore, 276 PlacesAfterwards, 1314 TransitionsBefore, 200 TransitionsAfterwards, 1603642 CoEnabledTransitionPairs, 7 FixpointIterations, 10 TrivialSequentialCompositions, 1166 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 172 ConcurrentYvCompositions, 162 ChoiceCompositions, 1510 TotalNumberOfCompositions, 1571686 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1358667, independent: 1358006, independent conditional: 0, independent unconditional: 1358006, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 803812, independent: 803460, independent conditional: 0, independent unconditional: 803460, dependent: 352, dependent conditional: 0, dependent unconditional: 352, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1358667, independent: 554546, independent conditional: 0, independent unconditional: 554546, dependent: 309, dependent conditional: 0, dependent unconditional: 309, unknown: 803812, unknown conditional: 0, unknown unconditional: 803812] , Statistics on independence cache: Total cache size (in pairs): 3572, Positive cache size: 3465, Positive conditional cache size: 0, Positive unconditional cache size: 3465, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 1256 places, 1344 transitions, 4800 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1256 places, 1344 transitions, 4800 flow and 232202 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 35 for 26ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown