/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/28_buggy_simple_loop1_vf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:09:56,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:09:56,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:09:56,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 00:09:56,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 00:09:56,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 00:09:56,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 00:09:56,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 00:09:56,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 00:09:56,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 00:09:56,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 00:09:56,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 00:09:56,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:09:56,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:09:56,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:09:56,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:09:56,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:09:56,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:09:56,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:09:56,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:09:56,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:09:56,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:09:56,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:09:56,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:09:56,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:09:56,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:09:56,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:09:56,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:09:56,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:09:56,995 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:09:56,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:09:56,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:09:56,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:09:56,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:09:56,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:09:56,996 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:09:56,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:09:56,997 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:09:56,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:09:56,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:09:56,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:09:56,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:09:56,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:09:56,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:09:56,999 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:09:57,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:09:57,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:09:57,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:09:57,226 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:09:57,226 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:09:57,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2023-01-28 00:09:58,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:09:58,572 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:09:58,573 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/28_buggy_simple_loop1_vf.i [2023-01-28 00:09:58,602 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924ba88b1/f5c2015844ef4eafb5d9d8eae0500766/FLAG1053476b5 [2023-01-28 00:09:58,618 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924ba88b1/f5c2015844ef4eafb5d9d8eae0500766 [2023-01-28 00:09:58,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:09:58,621 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:09:58,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:09:58,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:09:58,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:09:58,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:09:58" (1/1) ... [2023-01-28 00:09:58,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c58b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:58, skipping insertion in model container [2023-01-28 00:09:58,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:09:58" (1/1) ... [2023-01-28 00:09:58,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:09:58,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:09:58,979 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/28_buggy_simple_loop1_vf.i[30287,30300] [2023-01-28 00:09:58,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:09:58,992 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:09:59,023 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/28_buggy_simple_loop1_vf.i[30287,30300] [2023-01-28 00:09:59,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:09:59,050 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:09:59,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59 WrapperNode [2023-01-28 00:09:59,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:09:59,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:09:59,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:09:59,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:09:59,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,088 INFO L138 Inliner]: procedures = 167, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-01-28 00:09:59,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:09:59,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:09:59,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:09:59,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:09:59,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:09:59,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:09:59,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:09:59,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:09:59,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (1/1) ... [2023-01-28 00:09:59,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:09:59,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:09:59,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 00:09:59,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 00:09:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:09:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:09:59,171 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:09:59,305 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:09:59,306 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:09:59,490 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:09:59,525 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:09:59,525 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-01-28 00:09:59,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:09:59 BoogieIcfgContainer [2023-01-28 00:09:59,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:09:59,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:09:59,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:09:59,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:09:59,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:09:58" (1/3) ... [2023-01-28 00:09:59,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45448901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:09:59, skipping insertion in model container [2023-01-28 00:09:59,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:09:59" (2/3) ... [2023-01-28 00:09:59,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45448901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:09:59, skipping insertion in model container [2023-01-28 00:09:59,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:09:59" (3/3) ... [2023-01-28 00:09:59,533 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2023-01-28 00:09:59,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:09:59,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:09:59,546 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:09:59,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:59,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,736 INFO L130 PetriNetUnfolder]: 10/77 cut-off events. [2023-01-28 00:09:59,736 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:09:59,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 10/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2023-01-28 00:09:59,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,742 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,744 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:59,755 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,758 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 67 transitions, 139 flow [2023-01-28 00:09:59,785 INFO L130 PetriNetUnfolder]: 10/77 cut-off events. [2023-01-28 00:09:59,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:09:59,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 10/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 4 conditions per place. [2023-01-28 00:09:59,787 INFO L119 LiptonReduction]: Number of co-enabled transitions 1118 [2023-01-28 00:10:01,111 INFO L134 LiptonReduction]: Checked pairs total: 902 [2023-01-28 00:10:01,112 INFO L136 LiptonReduction]: Total number of compositions: 57 [2023-01-28 00:10:01,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:01,128 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:01,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:01,133 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2023-01-28 00:10:01,133 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:10:01,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:01,134 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 00:10:01,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:01,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:01,138 INFO L85 PathProgramCache]: Analyzing trace with hash 428581442, now seen corresponding path program 1 times [2023-01-28 00:10:01,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:01,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249284621] [2023-01-28 00:10:01,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:01,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:01,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:01,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:01,297 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:01,298 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:01,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:10:01,299 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:01,311 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:01,312 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:01,312 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 00:10:01,349 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:01,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,382 INFO L130 PetriNetUnfolder]: 19/133 cut-off events. [2023-01-28 00:10:01,382 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:10:01,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 19/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 98. Up to 6 conditions per place. [2023-01-28 00:10:01,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,386 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,386 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:01,386 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,386 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 111 transitions, 234 flow [2023-01-28 00:10:01,406 INFO L130 PetriNetUnfolder]: 19/133 cut-off events. [2023-01-28 00:10:01,406 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:10:01,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 133 events. 19/133 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 98. Up to 6 conditions per place. [2023-01-28 00:10:01,411 INFO L119 LiptonReduction]: Number of co-enabled transitions 6020 [2023-01-28 00:10:03,728 INFO L134 LiptonReduction]: Checked pairs total: 4465 [2023-01-28 00:10:03,729 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-01-28 00:10:03,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:03,731 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:03,731 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:03,735 INFO L130 PetriNetUnfolder]: 10/35 cut-off events. [2023-01-28 00:10:03,735 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:10:03,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:03,735 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 00:10:03,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:03,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash -121697642, now seen corresponding path program 1 times [2023-01-28 00:10:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662029270] [2023-01-28 00:10:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:03,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:03,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:03,761 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:03,761 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:03,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:10:03,761 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:03,762 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:03,762 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:03,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 00:10:03,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,829 INFO L130 PetriNetUnfolder]: 28/189 cut-off events. [2023-01-28 00:10:03,829 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:10:03,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 189 events. 28/189 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 494 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 141. Up to 8 conditions per place. [2023-01-28 00:10:03,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,833 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:03,833 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 155 transitions, 331 flow [2023-01-28 00:10:03,850 INFO L130 PetriNetUnfolder]: 28/189 cut-off events. [2023-01-28 00:10:03,853 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:10:03,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 189 events. 28/189 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 494 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 141. Up to 8 conditions per place. [2023-01-28 00:10:03,862 INFO L119 LiptonReduction]: Number of co-enabled transitions 14706 [2023-01-28 00:10:06,144 INFO L134 LiptonReduction]: Checked pairs total: 10769 [2023-01-28 00:10:06,144 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-01-28 00:10:06,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:06,146 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:06,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:06,151 INFO L130 PetriNetUnfolder]: 15/51 cut-off events. [2023-01-28 00:10:06,151 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:10:06,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:06,152 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 00:10:06,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:06,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:06,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1882383651, now seen corresponding path program 1 times [2023-01-28 00:10:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:06,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234528148] [2023-01-28 00:10:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:06,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:06,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:06,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:06,221 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:06,221 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:06,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:10:06,221 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:06,222 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:06,231 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:06,231 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 00:10:06,263 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:06,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,302 INFO L130 PetriNetUnfolder]: 37/245 cut-off events. [2023-01-28 00:10:06,302 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:10:06,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 245 events. 37/245 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 718 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 197. Up to 10 conditions per place. [2023-01-28 00:10:06,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,338 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,339 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:06,339 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,339 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 199 transitions, 430 flow [2023-01-28 00:10:06,375 INFO L130 PetriNetUnfolder]: 37/245 cut-off events. [2023-01-28 00:10:06,375 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:10:06,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 245 events. 37/245 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 718 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 197. Up to 10 conditions per place. [2023-01-28 00:10:06,386 INFO L119 LiptonReduction]: Number of co-enabled transitions 27176 [2023-01-28 00:10:10,094 INFO L134 LiptonReduction]: Checked pairs total: 19766 [2023-01-28 00:10:10,094 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-01-28 00:10:10,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:10,096 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:10,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:10,100 INFO L130 PetriNetUnfolder]: 20/67 cut-off events. [2023-01-28 00:10:10,100 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:10:10,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:10,100 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:10,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:10,100 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1445209602, now seen corresponding path program 1 times [2023-01-28 00:10:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476581226] [2023-01-28 00:10:10,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:10,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:10,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:10,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:10,186 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:10,187 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:10,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:10:10,187 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:10,187 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:10,187 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:10,187 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 00:10:10,223 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:10,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,256 INFO L130 PetriNetUnfolder]: 46/301 cut-off events. [2023-01-28 00:10:10,256 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:10:10,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 301 events. 46/301 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 947 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 260. Up to 12 conditions per place. [2023-01-28 00:10:10,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,261 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:10,261 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,261 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 243 transitions, 531 flow [2023-01-28 00:10:10,291 INFO L130 PetriNetUnfolder]: 46/301 cut-off events. [2023-01-28 00:10:10,291 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:10:10,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 301 events. 46/301 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 947 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 260. Up to 12 conditions per place. [2023-01-28 00:10:10,304 INFO L119 LiptonReduction]: Number of co-enabled transitions 43430 [2023-01-28 00:10:14,471 INFO L134 LiptonReduction]: Checked pairs total: 32005 [2023-01-28 00:10:14,471 INFO L136 LiptonReduction]: Total number of compositions: 208 [2023-01-28 00:10:14,472 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:14,472 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:14,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:14,477 INFO L130 PetriNetUnfolder]: 25/83 cut-off events. [2023-01-28 00:10:14,477 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:10:14,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:14,477 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:14,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:14,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash -723230756, now seen corresponding path program 1 times [2023-01-28 00:10:14,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:14,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097767548] [2023-01-28 00:10:14,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:14,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:14,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:14,524 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:14,524 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:14,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:10:14,524 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:14,525 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:14,525 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:14,525 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 00:10:14,549 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:14,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,583 INFO L130 PetriNetUnfolder]: 55/357 cut-off events. [2023-01-28 00:10:14,583 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:10:14,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 357 events. 55/357 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1177 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 324. Up to 14 conditions per place. [2023-01-28 00:10:14,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,588 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:14,589 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,589 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 287 transitions, 634 flow [2023-01-28 00:10:14,621 INFO L130 PetriNetUnfolder]: 55/357 cut-off events. [2023-01-28 00:10:14,621 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:10:14,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 357 events. 55/357 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1177 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 324. Up to 14 conditions per place. [2023-01-28 00:10:14,635 INFO L119 LiptonReduction]: Number of co-enabled transitions 63468 [2023-01-28 00:10:19,004 INFO L134 LiptonReduction]: Checked pairs total: 46057 [2023-01-28 00:10:19,004 INFO L136 LiptonReduction]: Total number of compositions: 246 [2023-01-28 00:10:19,005 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:19,006 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:19,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:19,012 INFO L130 PetriNetUnfolder]: 30/99 cut-off events. [2023-01-28 00:10:19,012 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:10:19,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:19,012 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:19,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:19,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:19,012 INFO L85 PathProgramCache]: Analyzing trace with hash 784426857, now seen corresponding path program 1 times [2023-01-28 00:10:19,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:19,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154345610] [2023-01-28 00:10:19,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:19,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:19,067 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:19,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:19,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:19,084 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:19,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:10:19,084 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:19,084 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:19,084 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:19,084 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 00:10:19,115 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:19,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,164 INFO L130 PetriNetUnfolder]: 64/413 cut-off events. [2023-01-28 00:10:19,164 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:10:19,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 413 events. 64/413 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1394 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 389. Up to 16 conditions per place. [2023-01-28 00:10:19,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,173 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:19,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,174 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 331 transitions, 739 flow [2023-01-28 00:10:19,266 INFO L130 PetriNetUnfolder]: 64/413 cut-off events. [2023-01-28 00:10:19,266 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:10:19,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 413 events. 64/413 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1394 event pairs, 0 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 389. Up to 16 conditions per place. [2023-01-28 00:10:19,281 INFO L119 LiptonReduction]: Number of co-enabled transitions 87290 [2023-01-28 00:10:24,027 INFO L134 LiptonReduction]: Checked pairs total: 63029 [2023-01-28 00:10:24,027 INFO L136 LiptonReduction]: Total number of compositions: 284 [2023-01-28 00:10:24,029 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:24,031 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:24,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:24,039 INFO L130 PetriNetUnfolder]: 35/115 cut-off events. [2023-01-28 00:10:24,039 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:10:24,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:24,039 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:24,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:24,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:24,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1730590853, now seen corresponding path program 1 times [2023-01-28 00:10:24,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:24,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278774761] [2023-01-28 00:10:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:24,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:24,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:24,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:24,079 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:24,079 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:24,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:10:24,080 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:24,080 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:24,080 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:24,080 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-28 00:10:24,108 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:24,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,162 INFO L130 PetriNetUnfolder]: 73/469 cut-off events. [2023-01-28 00:10:24,162 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:10:24,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 469 events. 73/469 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1626 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 455. Up to 18 conditions per place. [2023-01-28 00:10:24,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,174 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:24,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 375 transitions, 846 flow [2023-01-28 00:10:24,226 INFO L130 PetriNetUnfolder]: 73/469 cut-off events. [2023-01-28 00:10:24,226 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:10:24,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 469 events. 73/469 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1626 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 455. Up to 18 conditions per place. [2023-01-28 00:10:24,251 INFO L119 LiptonReduction]: Number of co-enabled transitions 114896 [2023-01-28 00:10:29,516 INFO L134 LiptonReduction]: Checked pairs total: 84154 [2023-01-28 00:10:29,517 INFO L136 LiptonReduction]: Total number of compositions: 322 [2023-01-28 00:10:29,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:29,520 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:29,520 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:29,532 INFO L130 PetriNetUnfolder]: 40/131 cut-off events. [2023-01-28 00:10:29,532 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:10:29,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:29,532 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:29,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:29,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:29,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1049165851, now seen corresponding path program 1 times [2023-01-28 00:10:29,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:29,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622324092] [2023-01-28 00:10:29,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:29,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:29,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:29,575 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:29,575 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:29,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:29,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:10:29,575 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:29,576 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:29,576 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:29,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-28 00:10:29,609 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:29,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,674 INFO L130 PetriNetUnfolder]: 82/525 cut-off events. [2023-01-28 00:10:29,675 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:29,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 525 events. 82/525 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1846 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 522. Up to 20 conditions per place. [2023-01-28 00:10:29,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,687 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:29,687 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,688 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 419 transitions, 955 flow [2023-01-28 00:10:29,752 INFO L130 PetriNetUnfolder]: 82/525 cut-off events. [2023-01-28 00:10:29,752 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:29,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 525 events. 82/525 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1846 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 522. Up to 20 conditions per place. [2023-01-28 00:10:29,783 INFO L119 LiptonReduction]: Number of co-enabled transitions 146286 [2023-01-28 00:10:35,182 INFO L134 LiptonReduction]: Checked pairs total: 105507 [2023-01-28 00:10:35,182 INFO L136 LiptonReduction]: Total number of compositions: 360 [2023-01-28 00:10:35,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:35,184 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:35,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:35,193 INFO L130 PetriNetUnfolder]: 45/147 cut-off events. [2023-01-28 00:10:35,193 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:10:35,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:35,193 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:35,193 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:35,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:35,193 INFO L85 PathProgramCache]: Analyzing trace with hash -446193704, now seen corresponding path program 1 times [2023-01-28 00:10:35,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:35,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436493139] [2023-01-28 00:10:35,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:35,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:35,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:35,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:35,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:35,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:35,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:10:35,247 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:35,249 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:35,249 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:35,249 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-28 00:10:35,281 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:35,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,372 INFO L130 PetriNetUnfolder]: 91/581 cut-off events. [2023-01-28 00:10:35,373 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:35,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 581 events. 91/581 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2069 event pairs, 0 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 590. Up to 22 conditions per place. [2023-01-28 00:10:35,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,388 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:35,389 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,389 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 403 places, 463 transitions, 1066 flow [2023-01-28 00:10:35,467 INFO L130 PetriNetUnfolder]: 91/581 cut-off events. [2023-01-28 00:10:35,467 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:35,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 581 events. 91/581 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2069 event pairs, 0 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 590. Up to 22 conditions per place. [2023-01-28 00:10:35,503 INFO L119 LiptonReduction]: Number of co-enabled transitions 181460 [2023-01-28 00:10:42,588 INFO L134 LiptonReduction]: Checked pairs total: 130853 [2023-01-28 00:10:42,588 INFO L136 LiptonReduction]: Total number of compositions: 398 [2023-01-28 00:10:42,589 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:42,589 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:42,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:42,607 INFO L130 PetriNetUnfolder]: 50/163 cut-off events. [2023-01-28 00:10:42,608 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:10:42,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:42,608 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:42,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:42,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash -402854939, now seen corresponding path program 1 times [2023-01-28 00:10:42,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:42,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134595553] [2023-01-28 00:10:42,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:42,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:42,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:42,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:42,672 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:42,673 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:42,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:10:42,673 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:42,673 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:42,673 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:42,673 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-28 00:10:42,719 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:42,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:42,893 INFO L130 PetriNetUnfolder]: 100/637 cut-off events. [2023-01-28 00:10:42,893 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:42,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 637 events. 100/637 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2298 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 659. Up to 24 conditions per place. [2023-01-28 00:10:42,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:42,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:42,907 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:42,907 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:42,907 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:42,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 507 transitions, 1179 flow [2023-01-28 00:10:43,031 INFO L130 PetriNetUnfolder]: 100/637 cut-off events. [2023-01-28 00:10:43,031 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:43,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 637 events. 100/637 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2298 event pairs, 0 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 659. Up to 24 conditions per place. [2023-01-28 00:10:43,085 INFO L119 LiptonReduction]: Number of co-enabled transitions 220418 [2023-01-28 00:10:50,543 INFO L134 LiptonReduction]: Checked pairs total: 159012 [2023-01-28 00:10:50,544 INFO L136 LiptonReduction]: Total number of compositions: 436 [2023-01-28 00:10:50,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:50,545 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:50,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:50,577 INFO L130 PetriNetUnfolder]: 55/179 cut-off events. [2023-01-28 00:10:50,577 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:10:50,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:50,577 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:50,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:50,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 148645450, now seen corresponding path program 1 times [2023-01-28 00:10:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:50,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949516860] [2023-01-28 00:10:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:50,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:50,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:50,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:50,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:50,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:10:50,624 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:50,626 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:50,626 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:50,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-28 00:10:50,687 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:50,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,821 INFO L130 PetriNetUnfolder]: 109/693 cut-off events. [2023-01-28 00:10:50,821 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:50,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 693 events. 109/693 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2509 event pairs, 0 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 729. Up to 26 conditions per place. [2023-01-28 00:10:50,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,842 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:50,842 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 551 transitions, 1294 flow [2023-01-28 00:10:50,951 INFO L130 PetriNetUnfolder]: 109/693 cut-off events. [2023-01-28 00:10:50,952 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:50,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 693 events. 109/693 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2509 event pairs, 0 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 729. Up to 26 conditions per place. [2023-01-28 00:10:51,007 INFO L119 LiptonReduction]: Number of co-enabled transitions 263160 [2023-01-28 00:10:57,263 INFO L134 LiptonReduction]: Checked pairs total: 189789 [2023-01-28 00:10:57,263 INFO L136 LiptonReduction]: Total number of compositions: 474 [2023-01-28 00:10:57,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:57,265 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:57,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:57,284 INFO L130 PetriNetUnfolder]: 60/195 cut-off events. [2023-01-28 00:10:57,287 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:57,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:57,287 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 00:10:57,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:57,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash -251023018, now seen corresponding path program 1 times [2023-01-28 00:10:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362288697] [2023-01-28 00:10:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:57,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:57,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:57,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:57,346 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:57,346 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:57,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:10:57,346 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:57,346 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:57,347 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:57,347 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-28 00:10:57,412 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:57,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,557 INFO L130 PetriNetUnfolder]: 118/749 cut-off events. [2023-01-28 00:10:57,557 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:10:57,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 749 events. 118/749 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2743 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 800. Up to 28 conditions per place. [2023-01-28 00:10:57,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,581 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:57,582 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,582 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 595 transitions, 1411 flow [2023-01-28 00:10:57,708 INFO L130 PetriNetUnfolder]: 118/749 cut-off events. [2023-01-28 00:10:57,709 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:10:57,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 880 conditions, 749 events. 118/749 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2743 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 800. Up to 28 conditions per place. [2023-01-28 00:10:57,776 INFO L119 LiptonReduction]: Number of co-enabled transitions 309686 [2023-01-28 00:11:06,526 INFO L134 LiptonReduction]: Checked pairs total: 226100 [2023-01-28 00:11:06,526 INFO L136 LiptonReduction]: Total number of compositions: 512 [2023-01-28 00:11:06,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:06,530 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:06,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:06,553 INFO L130 PetriNetUnfolder]: 65/211 cut-off events. [2023-01-28 00:11:06,554 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:11:06,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:06,554 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:06,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:06,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:06,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1275746571, now seen corresponding path program 1 times [2023-01-28 00:11:06,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:06,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311148905] [2023-01-28 00:11:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:06,591 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:06,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:06,606 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:06,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:06,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 00:11:06,607 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:06,607 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:06,607 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:06,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-28 00:11:06,657 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:06,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:06,835 INFO L130 PetriNetUnfolder]: 127/805 cut-off events. [2023-01-28 00:11:06,835 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:06,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 805 events. 127/805 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2970 event pairs, 0 based on Foata normal form. 0/649 useless extension candidates. Maximal degree in co-relation 872. Up to 30 conditions per place. [2023-01-28 00:11:06,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:06,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:06,862 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:06,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:06,862 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:06,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 555 places, 639 transitions, 1530 flow [2023-01-28 00:11:07,015 INFO L130 PetriNetUnfolder]: 127/805 cut-off events. [2023-01-28 00:11:07,016 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:07,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 805 events. 127/805 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2970 event pairs, 0 based on Foata normal form. 0/649 useless extension candidates. Maximal degree in co-relation 872. Up to 30 conditions per place. [2023-01-28 00:11:07,094 INFO L119 LiptonReduction]: Number of co-enabled transitions 359996 [2023-01-28 00:11:15,621 INFO L134 LiptonReduction]: Checked pairs total: 259280 [2023-01-28 00:11:15,621 INFO L136 LiptonReduction]: Total number of compositions: 550 [2023-01-28 00:11:15,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:15,622 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:15,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:15,640 INFO L130 PetriNetUnfolder]: 70/227 cut-off events. [2023-01-28 00:11:15,640 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:11:15,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:15,640 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:15,640 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:15,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash -31892225, now seen corresponding path program 1 times [2023-01-28 00:11:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019672550] [2023-01-28 00:11:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:15,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:15,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:15,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:15,679 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:15,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 00:11:15,679 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:15,680 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:15,680 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:15,680 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-28 00:11:15,728 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:15,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:15,894 INFO L130 PetriNetUnfolder]: 136/861 cut-off events. [2023-01-28 00:11:15,895 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:15,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 861 events. 136/861 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3195 event pairs, 0 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 945. Up to 32 conditions per place. [2023-01-28 00:11:15,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:15,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:15,927 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:15,927 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:15,927 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:15,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 593 places, 683 transitions, 1651 flow [2023-01-28 00:11:16,088 INFO L130 PetriNetUnfolder]: 136/861 cut-off events. [2023-01-28 00:11:16,088 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:16,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 861 events. 136/861 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3195 event pairs, 0 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 945. Up to 32 conditions per place. [2023-01-28 00:11:16,180 INFO L119 LiptonReduction]: Number of co-enabled transitions 414090 [2023-01-28 00:11:23,654 INFO L134 LiptonReduction]: Checked pairs total: 301960 [2023-01-28 00:11:23,655 INFO L136 LiptonReduction]: Total number of compositions: 588 [2023-01-28 00:11:23,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:23,656 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:23,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:23,675 INFO L130 PetriNetUnfolder]: 75/243 cut-off events. [2023-01-28 00:11:23,676 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:23,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:23,676 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:23,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:23,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:23,676 INFO L85 PathProgramCache]: Analyzing trace with hash -283107337, now seen corresponding path program 1 times [2023-01-28 00:11:23,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:23,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726379554] [2023-01-28 00:11:23,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:23,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:23,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:23,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:23,714 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:23,715 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:23,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 00:11:23,715 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:23,715 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:23,715 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:23,716 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-28 00:11:23,758 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:23,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:23,942 INFO L130 PetriNetUnfolder]: 145/917 cut-off events. [2023-01-28 00:11:23,942 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:23,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 917 events. 145/917 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3404 event pairs, 0 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 1019. Up to 34 conditions per place. [2023-01-28 00:11:23,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:23,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:23,979 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:23,979 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:23,979 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:23,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 631 places, 727 transitions, 1774 flow [2023-01-28 00:11:24,160 INFO L130 PetriNetUnfolder]: 145/917 cut-off events. [2023-01-28 00:11:24,160 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:24,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 917 events. 145/917 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3404 event pairs, 0 based on Foata normal form. 0/739 useless extension candidates. Maximal degree in co-relation 1019. Up to 34 conditions per place. [2023-01-28 00:11:24,269 INFO L119 LiptonReduction]: Number of co-enabled transitions 471968 [2023-01-28 00:11:32,204 INFO L134 LiptonReduction]: Checked pairs total: 339847 [2023-01-28 00:11:32,204 INFO L136 LiptonReduction]: Total number of compositions: 626 [2023-01-28 00:11:32,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:32,206 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:32,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:32,226 INFO L130 PetriNetUnfolder]: 80/259 cut-off events. [2023-01-28 00:11:32,226 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:32,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:32,227 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 00:11:32,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:32,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1637014071, now seen corresponding path program 1 times [2023-01-28 00:11:32,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:32,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992169607] [2023-01-28 00:11:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:32,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:32,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:32,278 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:32,278 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:32,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 00:11:32,278 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:32,278 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:32,278 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:32,278 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-28 00:11:32,325 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:32,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,532 INFO L130 PetriNetUnfolder]: 154/973 cut-off events. [2023-01-28 00:11:32,532 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:32,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1178 conditions, 973 events. 154/973 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3661 event pairs, 0 based on Foata normal form. 0/784 useless extension candidates. Maximal degree in co-relation 1094. Up to 36 conditions per place. [2023-01-28 00:11:32,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,574 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:32,574 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,574 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 669 places, 771 transitions, 1899 flow [2023-01-28 00:11:32,848 INFO L130 PetriNetUnfolder]: 154/973 cut-off events. [2023-01-28 00:11:32,848 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:32,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1178 conditions, 973 events. 154/973 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3661 event pairs, 0 based on Foata normal form. 0/784 useless extension candidates. Maximal degree in co-relation 1094. Up to 36 conditions per place. [2023-01-28 00:11:32,934 INFO L119 LiptonReduction]: Number of co-enabled transitions 533630 [2023-01-28 00:11:42,367 INFO L134 LiptonReduction]: Checked pairs total: 384431 [2023-01-28 00:11:42,368 INFO L136 LiptonReduction]: Total number of compositions: 664 [2023-01-28 00:11:42,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:42,371 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:42,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:42,395 INFO L130 PetriNetUnfolder]: 85/275 cut-off events. [2023-01-28 00:11:42,395 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:42,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:42,395 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 00:11:42,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:42,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:42,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1899989629, now seen corresponding path program 1 times [2023-01-28 00:11:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:42,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292765780] [2023-01-28 00:11:42,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:42,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:42,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:42,459 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:42,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:42,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:42,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 00:11:42,459 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:42,459 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:42,459 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:42,459 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-28 00:11:42,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:42,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:42,788 INFO L130 PetriNetUnfolder]: 163/1029 cut-off events. [2023-01-28 00:11:42,788 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:11:42,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 1029 events. 163/1029 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3855 event pairs, 0 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1170. Up to 38 conditions per place. [2023-01-28 00:11:42,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:42,819 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:42,819 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:42,819 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:42,819 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:42,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 815 transitions, 2026 flow [2023-01-28 00:11:43,052 INFO L130 PetriNetUnfolder]: 163/1029 cut-off events. [2023-01-28 00:11:43,052 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:11:43,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 1029 events. 163/1029 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 3855 event pairs, 0 based on Foata normal form. 0/829 useless extension candidates. Maximal degree in co-relation 1170. Up to 38 conditions per place. [2023-01-28 00:11:43,185 INFO L119 LiptonReduction]: Number of co-enabled transitions 599076 [2023-01-28 00:11:54,212 INFO L134 LiptonReduction]: Checked pairs total: 431121 [2023-01-28 00:11:54,212 INFO L136 LiptonReduction]: Total number of compositions: 702 [2023-01-28 00:11:54,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:54,214 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:54,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:54,242 INFO L130 PetriNetUnfolder]: 90/291 cut-off events. [2023-01-28 00:11:54,242 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:11:54,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:54,242 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 00:11:54,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:54,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1385930933, now seen corresponding path program 1 times [2023-01-28 00:11:54,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844058960] [2023-01-28 00:11:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:54,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:54,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:54,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:54,291 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:54,291 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:54,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 00:11:54,291 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:54,291 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:54,291 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:54,291 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-28 00:11:54,419 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:54,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:54,693 INFO L130 PetriNetUnfolder]: 172/1085 cut-off events. [2023-01-28 00:11:54,693 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:11:54,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1085 events. 172/1085 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4084 event pairs, 0 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 1247. Up to 40 conditions per place. [2023-01-28 00:11:54,728 INFO L82 GeneralOperation]: Start removeDead. Operand has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:54,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:54,746 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:54,746 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:54,746 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:54,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 745 places, 859 transitions, 2155 flow [2023-01-28 00:11:55,015 INFO L130 PetriNetUnfolder]: 172/1085 cut-off events. [2023-01-28 00:11:55,015 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:11:55,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 1085 events. 172/1085 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4084 event pairs, 0 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 1247. Up to 40 conditions per place. [2023-01-28 00:11:55,176 INFO L119 LiptonReduction]: Number of co-enabled transitions 668306 [2023-01-28 00:12:07,046 INFO L134 LiptonReduction]: Checked pairs total: 480851 [2023-01-28 00:12:07,046 INFO L136 LiptonReduction]: Total number of compositions: 740 [2023-01-28 00:12:07,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:07,048 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:07,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:07,075 INFO L130 PetriNetUnfolder]: 95/307 cut-off events. [2023-01-28 00:12:07,075 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:07,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:07,076 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 00:12:07,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:07,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:07,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1633320738, now seen corresponding path program 1 times [2023-01-28 00:12:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:07,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076459368] [2023-01-28 00:12:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:07,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:07,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:07,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:07,226 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:07,226 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:07,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 00:12:07,226 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:07,228 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:07,228 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:07,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-28 00:12:07,322 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:07,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:07,691 INFO L130 PetriNetUnfolder]: 181/1141 cut-off events. [2023-01-28 00:12:07,692 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:12:07,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 1141 events. 181/1141 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4330 event pairs, 0 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 1325. Up to 42 conditions per place. [2023-01-28 00:12:07,732 INFO L82 GeneralOperation]: Start removeDead. Operand has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:07,752 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:07,752 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:07,752 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:07,752 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:07,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 783 places, 903 transitions, 2286 flow [2023-01-28 00:12:08,140 INFO L130 PetriNetUnfolder]: 181/1141 cut-off events. [2023-01-28 00:12:08,141 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:12:08,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 1141 events. 181/1141 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4330 event pairs, 0 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 1325. Up to 42 conditions per place. [2023-01-28 00:12:08,272 INFO L119 LiptonReduction]: Number of co-enabled transitions 741320 [2023-01-28 00:12:20,120 INFO L134 LiptonReduction]: Checked pairs total: 533087 [2023-01-28 00:12:20,120 INFO L136 LiptonReduction]: Total number of compositions: 778 [2023-01-28 00:12:20,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:20,122 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:20,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:20,153 INFO L130 PetriNetUnfolder]: 100/323 cut-off events. [2023-01-28 00:12:20,154 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:12:20,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:20,154 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 00:12:20,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:20,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash -884939164, now seen corresponding path program 1 times [2023-01-28 00:12:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:20,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851517026] [2023-01-28 00:12:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:20,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:20,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:20,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:20,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:20,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:20,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 00:12:20,247 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:20,247 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:20,248 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:20,248 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-28 00:12:20,359 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:20,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:20,697 INFO L130 PetriNetUnfolder]: 190/1197 cut-off events. [2023-01-28 00:12:20,697 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:12:20,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 1197 events. 190/1197 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4543 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1404. Up to 44 conditions per place. [2023-01-28 00:12:20,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:20,762 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:20,762 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:20,762 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:20,762 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:20,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 821 places, 947 transitions, 2419 flow [2023-01-28 00:12:21,096 INFO L130 PetriNetUnfolder]: 190/1197 cut-off events. [2023-01-28 00:12:21,096 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:12:21,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1492 conditions, 1197 events. 190/1197 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4543 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1404. Up to 44 conditions per place. [2023-01-28 00:12:21,298 INFO L119 LiptonReduction]: Number of co-enabled transitions 818118 [2023-01-28 00:12:32,282 INFO L134 LiptonReduction]: Checked pairs total: 568132 [2023-01-28 00:12:32,282 INFO L136 LiptonReduction]: Total number of compositions: 816 [2023-01-28 00:12:32,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:32,285 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:32,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:32,319 INFO L130 PetriNetUnfolder]: 105/339 cut-off events. [2023-01-28 00:12:32,319 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:12:32,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:32,320 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 00:12:32,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:32,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2034701136, now seen corresponding path program 1 times [2023-01-28 00:12:32,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:32,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797217809] [2023-01-28 00:12:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:32,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:32,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:32,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:32,385 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:32,385 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:32,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 00:12:32,385 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:32,385 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:32,386 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:32,386 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-28 00:12:32,477 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:32,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:32,928 INFO L130 PetriNetUnfolder]: 199/1253 cut-off events. [2023-01-28 00:12:32,928 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:12:32,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1253 events. 199/1253 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4748 event pairs, 0 based on Foata normal form. 0/1009 useless extension candidates. Maximal degree in co-relation 1484. Up to 46 conditions per place. [2023-01-28 00:12:32,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:32,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:32,990 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:32,990 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:32,990 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:32,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 859 places, 991 transitions, 2554 flow [2023-01-28 00:12:33,380 INFO L130 PetriNetUnfolder]: 199/1253 cut-off events. [2023-01-28 00:12:33,381 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:12:33,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 1253 events. 199/1253 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4748 event pairs, 0 based on Foata normal form. 0/1009 useless extension candidates. Maximal degree in co-relation 1484. Up to 46 conditions per place. [2023-01-28 00:12:33,598 INFO L119 LiptonReduction]: Number of co-enabled transitions 898700 [2023-01-28 00:12:45,603 INFO L134 LiptonReduction]: Checked pairs total: 612332 [2023-01-28 00:12:45,603 INFO L136 LiptonReduction]: Total number of compositions: 854 [2023-01-28 00:12:45,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:45,604 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:45,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:45,641 INFO L130 PetriNetUnfolder]: 110/355 cut-off events. [2023-01-28 00:12:45,641 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:12:45,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:45,642 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 00:12:45,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:45,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:45,642 INFO L85 PathProgramCache]: Analyzing trace with hash 920127893, now seen corresponding path program 1 times [2023-01-28 00:12:45,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:45,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531352280] [2023-01-28 00:12:45,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:45,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:45,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:45,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:45,684 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:45,684 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:45,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 00:12:45,684 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:45,685 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:45,685 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:45,685 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-28 00:12:45,753 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:45,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,155 INFO L130 PetriNetUnfolder]: 208/1309 cut-off events. [2023-01-28 00:12:46,155 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:12:46,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 1309 events. 208/1309 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4992 event pairs, 0 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1565. Up to 48 conditions per place. [2023-01-28 00:12:46,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,234 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:46,234 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,235 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 897 places, 1035 transitions, 2691 flow [2023-01-28 00:12:46,729 INFO L130 PetriNetUnfolder]: 208/1309 cut-off events. [2023-01-28 00:12:46,729 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:12:46,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1655 conditions, 1309 events. 208/1309 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 4992 event pairs, 0 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1565. Up to 48 conditions per place. [2023-01-28 00:12:46,900 INFO L119 LiptonReduction]: Number of co-enabled transitions 983066 [2023-01-28 00:12:59,376 INFO L134 LiptonReduction]: Checked pairs total: 669226 [2023-01-28 00:12:59,376 INFO L136 LiptonReduction]: Total number of compositions: 892 [2023-01-28 00:12:59,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:59,377 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:59,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:59,416 INFO L130 PetriNetUnfolder]: 115/371 cut-off events. [2023-01-28 00:12:59,417 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:12:59,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:59,417 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 00:12:59,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:59,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1185025979, now seen corresponding path program 1 times [2023-01-28 00:12:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305910895] [2023-01-28 00:12:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:59,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:59,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:59,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:59,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:59,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:59,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-28 00:12:59,463 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:59,463 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:59,463 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:59,463 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-28 00:12:59,573 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:59,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,013 INFO L130 PetriNetUnfolder]: 217/1365 cut-off events. [2023-01-28 00:13:00,013 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:13:00,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 1365 events. 217/1365 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5197 event pairs, 0 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 1647. Up to 50 conditions per place. [2023-01-28 00:13:00,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,100 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:00,100 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,101 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 935 places, 1079 transitions, 2830 flow [2023-01-28 00:13:00,533 INFO L130 PetriNetUnfolder]: 217/1365 cut-off events. [2023-01-28 00:13:00,533 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:13:00,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 1365 events. 217/1365 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5197 event pairs, 0 based on Foata normal form. 0/1099 useless extension candidates. Maximal degree in co-relation 1647. Up to 50 conditions per place. [2023-01-28 00:13:00,819 INFO L119 LiptonReduction]: Number of co-enabled transitions 1071216 [2023-01-28 00:13:15,627 INFO L134 LiptonReduction]: Checked pairs total: 739355 [2023-01-28 00:13:15,628 INFO L136 LiptonReduction]: Total number of compositions: 930 [2023-01-28 00:13:15,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:15,629 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:15,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:15,672 INFO L130 PetriNetUnfolder]: 120/387 cut-off events. [2023-01-28 00:13:15,672 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:13:15,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:15,672 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 00:13:15,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:15,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1770620551, now seen corresponding path program 1 times [2023-01-28 00:13:15,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:15,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676638729] [2023-01-28 00:13:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:15,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:15,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:15,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:15,721 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:15,721 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:15,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-28 00:13:15,722 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:15,722 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:15,722 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:15,722 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-28 00:13:15,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:15,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,296 INFO L130 PetriNetUnfolder]: 226/1421 cut-off events. [2023-01-28 00:13:16,296 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:13:16,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1822 conditions, 1421 events. 226/1421 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5473 event pairs, 0 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1730. Up to 52 conditions per place. [2023-01-28 00:13:16,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,377 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:16,377 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,377 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 973 places, 1123 transitions, 2971 flow [2023-01-28 00:13:16,847 INFO L130 PetriNetUnfolder]: 226/1421 cut-off events. [2023-01-28 00:13:16,847 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:13:16,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1822 conditions, 1421 events. 226/1421 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5473 event pairs, 0 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1730. Up to 52 conditions per place. [2023-01-28 00:13:17,138 INFO L119 LiptonReduction]: Number of co-enabled transitions 1163150 [2023-01-28 00:13:31,527 INFO L134 LiptonReduction]: Checked pairs total: 792246 [2023-01-28 00:13:31,527 INFO L136 LiptonReduction]: Total number of compositions: 968 [2023-01-28 00:13:31,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:31,528 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:31,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:31,575 INFO L130 PetriNetUnfolder]: 125/403 cut-off events. [2023-01-28 00:13:31,576 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:13:31,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:31,576 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 00:13:31,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:31,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1260993362, now seen corresponding path program 1 times [2023-01-28 00:13:31,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:31,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80757703] [2023-01-28 00:13:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:31,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:31,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:31,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:31,625 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:31,625 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:31,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-28 00:13:31,626 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:31,626 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:31,626 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:31,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-28 00:13:31,694 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:31,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,263 INFO L130 PetriNetUnfolder]: 235/1477 cut-off events. [2023-01-28 00:13:32,263 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:13:32,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 1477 events. 235/1477 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5666 event pairs, 0 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 1814. Up to 54 conditions per place. [2023-01-28 00:13:32,329 INFO L82 GeneralOperation]: Start removeDead. Operand has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,358 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:32,359 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,359 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1011 places, 1167 transitions, 3114 flow [2023-01-28 00:13:32,877 INFO L130 PetriNetUnfolder]: 235/1477 cut-off events. [2023-01-28 00:13:32,877 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:13:32,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1907 conditions, 1477 events. 235/1477 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5666 event pairs, 0 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 1814. Up to 54 conditions per place. [2023-01-28 00:13:33,192 INFO L119 LiptonReduction]: Number of co-enabled transitions 1258868 [2023-01-28 00:13:48,107 INFO L134 LiptonReduction]: Checked pairs total: 874661 [2023-01-28 00:13:48,107 INFO L136 LiptonReduction]: Total number of compositions: 1006 [2023-01-28 00:13:48,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:48,110 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:48,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:48,159 INFO L130 PetriNetUnfolder]: 130/419 cut-off events. [2023-01-28 00:13:48,160 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:13:48,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:48,160 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 00:13:48,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:48,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:48,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1938145562, now seen corresponding path program 1 times [2023-01-28 00:13:48,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:48,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030743498] [2023-01-28 00:13:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:48,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:48,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:48,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:48,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:48,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 00:13:48,288 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:48,289 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:48,289 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:48,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-28 00:13:48,377 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:48,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:48,930 INFO L130 PetriNetUnfolder]: 244/1533 cut-off events. [2023-01-28 00:13:48,930 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:13:49,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1533 events. 244/1533 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5902 event pairs, 0 based on Foata normal form. 0/1234 useless extension candidates. Maximal degree in co-relation 1899. Up to 56 conditions per place. [2023-01-28 00:13:49,008 INFO L82 GeneralOperation]: Start removeDead. Operand has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:49,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:49,044 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:49,044 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:49,044 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:49,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1049 places, 1211 transitions, 3259 flow [2023-01-28 00:13:49,645 INFO L130 PetriNetUnfolder]: 244/1533 cut-off events. [2023-01-28 00:13:49,645 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:13:49,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1533 events. 244/1533 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 5902 event pairs, 0 based on Foata normal form. 0/1234 useless extension candidates. Maximal degree in co-relation 1899. Up to 56 conditions per place. [2023-01-28 00:13:49,899 INFO L119 LiptonReduction]: Number of co-enabled transitions 1358370 [2023-01-28 00:14:05,404 INFO L134 LiptonReduction]: Checked pairs total: 925735 [2023-01-28 00:14:05,404 INFO L136 LiptonReduction]: Total number of compositions: 1044 [2023-01-28 00:14:05,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:05,405 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:05,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:05,460 INFO L130 PetriNetUnfolder]: 135/435 cut-off events. [2023-01-28 00:14:05,460 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:14:05,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:05,460 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 00:14:05,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:05,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:05,461 INFO L85 PathProgramCache]: Analyzing trace with hash 2126522726, now seen corresponding path program 1 times [2023-01-28 00:14:05,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:05,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931362305] [2023-01-28 00:14:05,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:05,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:05,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:05,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:05,537 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:05,537 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-01-28 00:14:05,537 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:05,538 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:05,538 WARN L233 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:05,538 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2023-01-28 00:14:05,613 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:05,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,256 INFO L130 PetriNetUnfolder]: 253/1589 cut-off events. [2023-01-28 00:14:06,256 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:14:06,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2080 conditions, 1589 events. 253/1589 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6137 event pairs, 0 based on Foata normal form. 0/1279 useless extension candidates. Maximal degree in co-relation 1985. Up to 58 conditions per place. [2023-01-28 00:14:06,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,339 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:06,339 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,339 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1087 places, 1255 transitions, 3406 flow [2023-01-28 00:14:06,923 INFO L130 PetriNetUnfolder]: 253/1589 cut-off events. [2023-01-28 00:14:06,923 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:14:07,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2080 conditions, 1589 events. 253/1589 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6137 event pairs, 0 based on Foata normal form. 0/1279 useless extension candidates. Maximal degree in co-relation 1985. Up to 58 conditions per place. [2023-01-28 00:14:07,301 INFO L119 LiptonReduction]: Number of co-enabled transitions 1461656 [2023-01-28 00:14:24,824 INFO L134 LiptonReduction]: Checked pairs total: 1029028 [2023-01-28 00:14:24,824 INFO L136 LiptonReduction]: Total number of compositions: 1082 [2023-01-28 00:14:24,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:24,826 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:24,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:24,884 INFO L130 PetriNetUnfolder]: 140/451 cut-off events. [2023-01-28 00:14:24,884 INFO L131 PetriNetUnfolder]: For 4032/4032 co-relation queries the response was YES. [2023-01-28 00:14:24,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:24,884 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 00:14:24,884 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:24,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -533926995, now seen corresponding path program 1 times [2023-01-28 00:14:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416282901] [2023-01-28 00:14:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:24,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:24,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:24,942 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:24,942 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:24,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-01-28 00:14:24,943 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:24,943 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:24,943 WARN L233 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:24,943 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2023-01-28 00:14:25,018 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:25,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:25,650 INFO L130 PetriNetUnfolder]: 262/1645 cut-off events. [2023-01-28 00:14:25,651 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:14:25,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1645 events. 262/1645 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6306 event pairs, 0 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 2072. Up to 60 conditions per place. [2023-01-28 00:14:25,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:25,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:25,784 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:25,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:25,784 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:25,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1125 places, 1299 transitions, 3555 flow [2023-01-28 00:14:26,407 INFO L130 PetriNetUnfolder]: 262/1645 cut-off events. [2023-01-28 00:14:26,407 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:14:26,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1645 events. 262/1645 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6306 event pairs, 0 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 2072. Up to 60 conditions per place. [2023-01-28 00:14:26,786 INFO L119 LiptonReduction]: Number of co-enabled transitions 1568726 [2023-01-28 00:14:44,628 INFO L134 LiptonReduction]: Checked pairs total: 1090804 [2023-01-28 00:14:44,628 INFO L136 LiptonReduction]: Total number of compositions: 1120 [2023-01-28 00:14:44,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:44,631 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:44,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:44,693 INFO L130 PetriNetUnfolder]: 145/467 cut-off events. [2023-01-28 00:14:44,694 INFO L131 PetriNetUnfolder]: For 4466/4466 co-relation queries the response was YES. [2023-01-28 00:14:44,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:44,694 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 00:14:44,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:44,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1098943135, now seen corresponding path program 1 times [2023-01-28 00:14:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560155281] [2023-01-28 00:14:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:44,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:44,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:44,787 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:44,788 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:44,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-01-28 00:14:44,788 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:44,788 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:44,788 WARN L233 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:44,788 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2023-01-28 00:14:44,883 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:44,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:45,584 INFO L130 PetriNetUnfolder]: 271/1701 cut-off events. [2023-01-28 00:14:45,584 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:14:45,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 1701 events. 271/1701 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6548 event pairs, 0 based on Foata normal form. 0/1369 useless extension candidates. Maximal degree in co-relation 2160. Up to 62 conditions per place. [2023-01-28 00:14:45,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:45,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:45,729 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:45,729 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:45,730 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:45,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1163 places, 1343 transitions, 3706 flow [2023-01-28 00:14:46,405 INFO L130 PetriNetUnfolder]: 271/1701 cut-off events. [2023-01-28 00:14:46,406 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:14:46,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 1701 events. 271/1701 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6548 event pairs, 0 based on Foata normal form. 0/1369 useless extension candidates. Maximal degree in co-relation 2160. Up to 62 conditions per place. [2023-01-28 00:14:46,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 1679580 [2023-01-28 00:15:05,285 INFO L134 LiptonReduction]: Checked pairs total: 1182308 [2023-01-28 00:15:05,285 INFO L136 LiptonReduction]: Total number of compositions: 1158 [2023-01-28 00:15:05,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:05,288 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:05,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:05,364 INFO L130 PetriNetUnfolder]: 150/483 cut-off events. [2023-01-28 00:15:05,364 INFO L131 PetriNetUnfolder]: For 4930/4930 co-relation queries the response was YES. [2023-01-28 00:15:05,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:05,364 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 00:15:05,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:05,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1777947910, now seen corresponding path program 1 times [2023-01-28 00:15:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:05,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807635067] [2023-01-28 00:15:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:05,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:05,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:05,475 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:05,475 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:05,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-01-28 00:15:05,475 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:05,492 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:05,493 WARN L233 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:05,493 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2023-01-28 00:15:05,583 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:05,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:06,308 INFO L130 PetriNetUnfolder]: 280/1757 cut-off events. [2023-01-28 00:15:06,309 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:15:06,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1757 events. 280/1757 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6759 event pairs, 0 based on Foata normal form. 0/1414 useless extension candidates. Maximal degree in co-relation 2249. Up to 64 conditions per place. [2023-01-28 00:15:06,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:06,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:06,468 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:06,468 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:06,468 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:06,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1201 places, 1387 transitions, 3859 flow [2023-01-28 00:15:07,226 INFO L130 PetriNetUnfolder]: 280/1757 cut-off events. [2023-01-28 00:15:07,227 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:15:07,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347 conditions, 1757 events. 280/1757 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 6759 event pairs, 0 based on Foata normal form. 0/1414 useless extension candidates. Maximal degree in co-relation 2249. Up to 64 conditions per place. [2023-01-28 00:15:07,678 INFO L119 LiptonReduction]: Number of co-enabled transitions 1794218 [2023-01-28 00:15:26,281 INFO L134 LiptonReduction]: Checked pairs total: 1223471 [2023-01-28 00:15:26,281 INFO L136 LiptonReduction]: Total number of compositions: 1196 [2023-01-28 00:15:26,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:26,283 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:26,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:26,355 INFO L130 PetriNetUnfolder]: 155/499 cut-off events. [2023-01-28 00:15:26,355 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-01-28 00:15:26,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:26,356 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 00:15:26,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:26,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:26,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1883492412, now seen corresponding path program 1 times [2023-01-28 00:15:26,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:26,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375907728] [2023-01-28 00:15:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:26,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:26,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:26,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:26,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:26,444 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:26,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-01-28 00:15:26,444 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:26,445 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:26,445 WARN L233 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:26,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2023-01-28 00:15:26,566 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:26,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:27,370 INFO L130 PetriNetUnfolder]: 289/1813 cut-off events. [2023-01-28 00:15:27,370 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:15:27,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2438 conditions, 1813 events. 289/1813 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7023 event pairs, 0 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 2339. Up to 66 conditions per place. [2023-01-28 00:15:27,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:27,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:27,522 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:27,522 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:27,523 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:27,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1239 places, 1431 transitions, 4014 flow [2023-01-28 00:15:28,347 INFO L130 PetriNetUnfolder]: 289/1813 cut-off events. [2023-01-28 00:15:28,347 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:15:28,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2438 conditions, 1813 events. 289/1813 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7023 event pairs, 0 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 2339. Up to 66 conditions per place. [2023-01-28 00:15:28,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 1912640 [2023-01-28 00:15:47,280 INFO L134 LiptonReduction]: Checked pairs total: 1319330 [2023-01-28 00:15:47,281 INFO L136 LiptonReduction]: Total number of compositions: 1234 [2023-01-28 00:15:47,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:47,282 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:47,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:47,360 INFO L130 PetriNetUnfolder]: 160/515 cut-off events. [2023-01-28 00:15:47,360 INFO L131 PetriNetUnfolder]: For 5952/5952 co-relation queries the response was YES. [2023-01-28 00:15:47,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:47,360 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 00:15:47,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:47,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash -306066508, now seen corresponding path program 1 times [2023-01-28 00:15:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:47,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876953641] [2023-01-28 00:15:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:47,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:47,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:47,427 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:47,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:47,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-01-28 00:15:47,427 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:47,427 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:47,427 WARN L233 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:47,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2023-01-28 00:15:47,544 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:47,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:48,444 INFO L130 PetriNetUnfolder]: 298/1869 cut-off events. [2023-01-28 00:15:48,444 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:15:48,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2530 conditions, 1869 events. 298/1869 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7251 event pairs, 0 based on Foata normal form. 0/1504 useless extension candidates. Maximal degree in co-relation 2430. Up to 68 conditions per place. [2023-01-28 00:15:48,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:48,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:48,561 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:48,561 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:48,561 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:48,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1277 places, 1475 transitions, 4171 flow [2023-01-28 00:15:49,491 INFO L130 PetriNetUnfolder]: 298/1869 cut-off events. [2023-01-28 00:15:49,492 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:15:49,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2530 conditions, 1869 events. 298/1869 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7251 event pairs, 0 based on Foata normal form. 0/1504 useless extension candidates. Maximal degree in co-relation 2430. Up to 68 conditions per place. [2023-01-28 00:15:49,923 INFO L119 LiptonReduction]: Number of co-enabled transitions 2034846 [2023-01-28 00:16:08,976 INFO L134 LiptonReduction]: Checked pairs total: 1403086 [2023-01-28 00:16:08,976 INFO L136 LiptonReduction]: Total number of compositions: 1272 [2023-01-28 00:16:08,977 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:08,977 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:08,977 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:09,072 INFO L130 PetriNetUnfolder]: 165/531 cut-off events. [2023-01-28 00:16:09,072 INFO L131 PetriNetUnfolder]: For 6512/6512 co-relation queries the response was YES. [2023-01-28 00:16:09,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:09,073 INFO L208 CegarLoopForPetriNet]: trace histogram [34, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:16:09,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:09,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:09,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1600195761, now seen corresponding path program 1 times [2023-01-28 00:16:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:09,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160280236] [2023-01-28 00:16:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:09,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:09,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:09,152 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:09,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:09,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-01-28 00:16:09,153 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:09,153 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:09,153 WARN L233 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:09,153 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2023-01-28 00:16:09,258 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:09,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:10,223 INFO L130 PetriNetUnfolder]: 307/1925 cut-off events. [2023-01-28 00:16:10,223 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:16:10,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1925 events. 307/1925 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7479 event pairs, 0 based on Foata normal form. 0/1549 useless extension candidates. Maximal degree in co-relation 2522. Up to 70 conditions per place. [2023-01-28 00:16:10,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:10,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:10,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:10,426 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:10,426 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:10,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1315 places, 1519 transitions, 4330 flow [2023-01-28 00:16:11,348 INFO L130 PetriNetUnfolder]: 307/1925 cut-off events. [2023-01-28 00:16:11,348 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:16:11,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2623 conditions, 1925 events. 307/1925 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7479 event pairs, 0 based on Foata normal form. 0/1549 useless extension candidates. Maximal degree in co-relation 2522. Up to 70 conditions per place. [2023-01-28 00:16:11,911 INFO L119 LiptonReduction]: Number of co-enabled transitions 2160836 [2023-01-28 00:16:31,865 INFO L134 LiptonReduction]: Checked pairs total: 1500860 [2023-01-28 00:16:31,865 INFO L136 LiptonReduction]: Total number of compositions: 1310 [2023-01-28 00:16:31,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:31,882 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:31,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:31,965 INFO L130 PetriNetUnfolder]: 170/547 cut-off events. [2023-01-28 00:16:31,965 INFO L131 PetriNetUnfolder]: For 7106/7106 co-relation queries the response was YES. [2023-01-28 00:16:31,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:31,966 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 00:16:31,966 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:31,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:31,981 INFO L85 PathProgramCache]: Analyzing trace with hash 419788071, now seen corresponding path program 1 times [2023-01-28 00:16:31,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:31,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155939675] [2023-01-28 00:16:31,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:31,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:32,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:32,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:32,055 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:32,055 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:32,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-01-28 00:16:32,055 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:32,056 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:32,056 WARN L233 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:32,056 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2023-01-28 00:16:32,144 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:32,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:33,144 INFO L130 PetriNetUnfolder]: 316/1981 cut-off events. [2023-01-28 00:16:33,145 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:16:33,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 1981 events. 316/1981 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7684 event pairs, 0 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 2615. Up to 72 conditions per place. [2023-01-28 00:16:33,280 INFO L82 GeneralOperation]: Start removeDead. Operand has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:33,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:33,347 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:33,347 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:33,347 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:33,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1353 places, 1563 transitions, 4491 flow [2023-01-28 00:16:34,275 INFO L130 PetriNetUnfolder]: 316/1981 cut-off events. [2023-01-28 00:16:34,275 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:16:34,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 1981 events. 316/1981 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7684 event pairs, 0 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 2615. Up to 72 conditions per place. [2023-01-28 00:16:34,816 INFO L119 LiptonReduction]: Number of co-enabled transitions 2290610 [2023-01-28 00:16:57,506 INFO L134 LiptonReduction]: Checked pairs total: 1611051 [2023-01-28 00:16:57,506 INFO L136 LiptonReduction]: Total number of compositions: 1348 [2023-01-28 00:16:57,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:57,508 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:57,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:57,595 INFO L130 PetriNetUnfolder]: 175/563 cut-off events. [2023-01-28 00:16:57,595 INFO L131 PetriNetUnfolder]: For 7735/7735 co-relation queries the response was YES. [2023-01-28 00:16:57,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:57,595 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 00:16:57,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:57,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:57,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1218366639, now seen corresponding path program 1 times [2023-01-28 00:16:57,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:57,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077158619] [2023-01-28 00:16:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:57,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:57,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:57,667 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:57,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:57,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-01-28 00:16:57,667 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:57,668 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:57,668 WARN L233 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:57,668 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2023-01-28 00:16:57,759 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:57,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:16:58,862 INFO L130 PetriNetUnfolder]: 325/2037 cut-off events. [2023-01-28 00:16:58,862 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:16:59,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 2037 events. 325/2037 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7901 event pairs, 0 based on Foata normal form. 0/1639 useless extension candidates. Maximal degree in co-relation 2709. Up to 74 conditions per place. [2023-01-28 00:16:59,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:16:59,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:16:59,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:59,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:16:59,095 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:16:59,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1391 places, 1607 transitions, 4654 flow [2023-01-28 00:17:00,156 INFO L130 PetriNetUnfolder]: 325/2037 cut-off events. [2023-01-28 00:17:00,157 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:17:00,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 2037 events. 325/2037 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 7901 event pairs, 0 based on Foata normal form. 0/1639 useless extension candidates. Maximal degree in co-relation 2709. Up to 74 conditions per place. [2023-01-28 00:17:00,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 2424168 [2023-01-28 00:17:24,232 INFO L134 LiptonReduction]: Checked pairs total: 1651964 [2023-01-28 00:17:24,233 INFO L136 LiptonReduction]: Total number of compositions: 1386 [2023-01-28 00:17:24,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:24,234 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:24,234 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:24,328 INFO L130 PetriNetUnfolder]: 180/579 cut-off events. [2023-01-28 00:17:24,329 INFO L131 PetriNetUnfolder]: For 8400/8400 co-relation queries the response was YES. [2023-01-28 00:17:24,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:24,329 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 00:17:24,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:24,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1148818984, now seen corresponding path program 1 times [2023-01-28 00:17:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:24,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107619932] [2023-01-28 00:17:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:24,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:24,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:24,409 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:24,409 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:24,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-01-28 00:17:24,409 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:24,409 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:24,410 WARN L233 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:24,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2023-01-28 00:17:24,504 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:24,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:25,648 INFO L130 PetriNetUnfolder]: 334/2093 cut-off events. [2023-01-28 00:17:25,648 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:17:25,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2093 events. 334/2093 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8131 event pairs, 0 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2804. Up to 76 conditions per place. [2023-01-28 00:17:25,810 INFO L82 GeneralOperation]: Start removeDead. Operand has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:25,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:25,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:25,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:25,891 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:25,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1429 places, 1651 transitions, 4819 flow [2023-01-28 00:17:26,988 INFO L130 PetriNetUnfolder]: 334/2093 cut-off events. [2023-01-28 00:17:26,988 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:17:27,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2093 events. 334/2093 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8131 event pairs, 0 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2804. Up to 76 conditions per place. [2023-01-28 00:17:27,679 INFO L119 LiptonReduction]: Number of co-enabled transitions 2561510 [2023-01-28 00:17:48,334 INFO L134 LiptonReduction]: Checked pairs total: 1803999 [2023-01-28 00:17:48,334 INFO L136 LiptonReduction]: Total number of compositions: 1424 [2023-01-28 00:17:48,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:48,335 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:48,335 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:48,433 INFO L130 PetriNetUnfolder]: 185/595 cut-off events. [2023-01-28 00:17:48,433 INFO L131 PetriNetUnfolder]: For 9102/9102 co-relation queries the response was YES. [2023-01-28 00:17:48,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:48,433 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 00:17:48,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:48,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash -957211376, now seen corresponding path program 1 times [2023-01-28 00:17:48,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:48,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878526480] [2023-01-28 00:17:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:48,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:48,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:48,514 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:48,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:48,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-01-28 00:17:48,514 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:48,514 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:48,514 WARN L233 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:48,514 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2023-01-28 00:17:48,656 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:48,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:49,897 INFO L130 PetriNetUnfolder]: 343/2149 cut-off events. [2023-01-28 00:17:49,897 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:17:50,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3005 conditions, 2149 events. 343/2149 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8363 event pairs, 0 based on Foata normal form. 0/1729 useless extension candidates. Maximal degree in co-relation 2900. Up to 78 conditions per place. [2023-01-28 00:17:50,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:50,149 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:50,149 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:50,149 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:50,150 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:50,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1467 places, 1695 transitions, 4986 flow [2023-01-28 00:17:51,286 INFO L130 PetriNetUnfolder]: 343/2149 cut-off events. [2023-01-28 00:17:51,287 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:17:51,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3005 conditions, 2149 events. 343/2149 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8363 event pairs, 0 based on Foata normal form. 0/1729 useless extension candidates. Maximal degree in co-relation 2900. Up to 78 conditions per place. [2023-01-28 00:17:51,974 INFO L119 LiptonReduction]: Number of co-enabled transitions 2702636 [2023-01-28 00:18:16,473 INFO L134 LiptonReduction]: Checked pairs total: 1900286 [2023-01-28 00:18:16,473 INFO L136 LiptonReduction]: Total number of compositions: 1462 [2023-01-28 00:18:16,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:16,479 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:16,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:16,583 INFO L130 PetriNetUnfolder]: 190/611 cut-off events. [2023-01-28 00:18:16,584 INFO L131 PetriNetUnfolder]: For 9842/9842 co-relation queries the response was YES. [2023-01-28 00:18:16,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:16,584 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 00:18:16,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:16,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:16,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1660705458, now seen corresponding path program 1 times [2023-01-28 00:18:16,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:16,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059416460] [2023-01-28 00:18:16,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:16,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:16,636 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:16,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:16,720 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:16,720 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:16,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-01-28 00:18:16,721 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:16,721 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:16,721 WARN L233 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:16,721 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2023-01-28 00:18:16,835 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:16,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:18,314 INFO L130 PetriNetUnfolder]: 352/2205 cut-off events. [2023-01-28 00:18:18,314 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:18:18,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 2205 events. 352/2205 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8602 event pairs, 0 based on Foata normal form. 0/1774 useless extension candidates. Maximal degree in co-relation 2997. Up to 80 conditions per place. [2023-01-28 00:18:18,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:18,507 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:18,507 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:18,507 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:18,508 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:18,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1505 places, 1739 transitions, 5155 flow [2023-01-28 00:18:19,867 INFO L130 PetriNetUnfolder]: 352/2205 cut-off events. [2023-01-28 00:18:19,867 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:18:19,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 2205 events. 352/2205 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8602 event pairs, 0 based on Foata normal form. 0/1774 useless extension candidates. Maximal degree in co-relation 2997. Up to 80 conditions per place. [2023-01-28 00:18:20,539 INFO L119 LiptonReduction]: Number of co-enabled transitions 2847546 [2023-01-28 00:18:46,451 INFO L134 LiptonReduction]: Checked pairs total: 1939921 [2023-01-28 00:18:46,452 INFO L136 LiptonReduction]: Total number of compositions: 1500 [2023-01-28 00:18:46,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:46,454 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:46,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:46,625 INFO L130 PetriNetUnfolder]: 195/627 cut-off events. [2023-01-28 00:18:46,625 INFO L131 PetriNetUnfolder]: For 10621/10621 co-relation queries the response was YES. [2023-01-28 00:18:46,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:46,626 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 00:18:46,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:46,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2130746411, now seen corresponding path program 1 times [2023-01-28 00:18:46,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:46,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495148189] [2023-01-28 00:18:46,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:46,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:46,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:46,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:46,712 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:46,713 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:46,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-01-28 00:18:46,713 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:46,713 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:46,713 WARN L233 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:46,713 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2023-01-28 00:18:46,836 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:46,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:48,268 INFO L130 PetriNetUnfolder]: 361/2261 cut-off events. [2023-01-28 00:18:48,268 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:18:48,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 2261 events. 361/2261 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8805 event pairs, 0 based on Foata normal form. 0/1819 useless extension candidates. Maximal degree in co-relation 3095. Up to 82 conditions per place. [2023-01-28 00:18:48,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:48,447 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:48,447 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:48,447 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:48,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:48,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1543 places, 1783 transitions, 5326 flow [2023-01-28 00:18:50,079 INFO L130 PetriNetUnfolder]: 361/2261 cut-off events. [2023-01-28 00:18:50,079 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:18:50,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 2261 events. 361/2261 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 8805 event pairs, 0 based on Foata normal form. 0/1819 useless extension candidates. Maximal degree in co-relation 3095. Up to 82 conditions per place. [2023-01-28 00:18:50,823 INFO L119 LiptonReduction]: Number of co-enabled transitions 2996240 [2023-01-28 00:19:15,694 INFO L134 LiptonReduction]: Checked pairs total: 2042420 [2023-01-28 00:19:15,695 INFO L136 LiptonReduction]: Total number of compositions: 1538 [2023-01-28 00:19:15,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:15,697 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:15,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:15,835 INFO L130 PetriNetUnfolder]: 200/643 cut-off events. [2023-01-28 00:19:15,836 INFO L131 PetriNetUnfolder]: For 11440/11440 co-relation queries the response was YES. [2023-01-28 00:19:15,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:15,836 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 00:19:15,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:15,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1540829952, now seen corresponding path program 1 times [2023-01-28 00:19:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:15,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870384980] [2023-01-28 00:19:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:15,890 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:15,938 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:15,938 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:15,938 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:15,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-01-28 00:19:15,938 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:15,938 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:15,939 WARN L233 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:15,939 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2023-01-28 00:19:16,040 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:16,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:17,599 INFO L130 PetriNetUnfolder]: 370/2317 cut-off events. [2023-01-28 00:19:17,599 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:19:17,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 2317 events. 370/2317 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9062 event pairs, 0 based on Foata normal form. 0/1864 useless extension candidates. Maximal degree in co-relation 3194. Up to 84 conditions per place. [2023-01-28 00:19:17,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:17,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:17,803 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:17,803 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:17,803 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:17,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1581 places, 1827 transitions, 5499 flow [2023-01-28 00:19:19,367 INFO L130 PetriNetUnfolder]: 370/2317 cut-off events. [2023-01-28 00:19:19,367 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:19:19,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 2317 events. 370/2317 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9062 event pairs, 0 based on Foata normal form. 0/1864 useless extension candidates. Maximal degree in co-relation 3194. Up to 84 conditions per place. [2023-01-28 00:19:20,180 INFO L119 LiptonReduction]: Number of co-enabled transitions 3148718 [2023-01-28 00:19:45,205 INFO L134 LiptonReduction]: Checked pairs total: 2188235 [2023-01-28 00:19:45,207 INFO L136 LiptonReduction]: Total number of compositions: 1576 [2023-01-28 00:19:45,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:19:45,217 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:19:45,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:19:45,349 INFO L130 PetriNetUnfolder]: 205/659 cut-off events. [2023-01-28 00:19:45,349 INFO L131 PetriNetUnfolder]: For 12300/12300 co-relation queries the response was YES. [2023-01-28 00:19:45,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:19:45,349 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 00:19:45,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:19:45,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:19:45,350 INFO L85 PathProgramCache]: Analyzing trace with hash 956298933, now seen corresponding path program 1 times [2023-01-28 00:19:45,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:19:45,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030541345] [2023-01-28 00:19:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:19:45,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:19:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:45,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:19:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:19:45,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:19:45,458 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:19:45,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:19:45,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-01-28 00:19:45,458 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:19:45,459 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:19:45,459 WARN L233 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:19:45,459 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2023-01-28 00:19:45,577 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:19:45,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:47,504 INFO L130 PetriNetUnfolder]: 379/2373 cut-off events. [2023-01-28 00:19:47,504 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:19:47,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3403 conditions, 2373 events. 379/2373 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9274 event pairs, 0 based on Foata normal form. 0/1909 useless extension candidates. Maximal degree in co-relation 3294. Up to 86 conditions per place. [2023-01-28 00:19:47,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:47,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:47,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:19:47,686 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:47,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:47,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1871 transitions, 5674 flow [2023-01-28 00:19:49,610 INFO L130 PetriNetUnfolder]: 379/2373 cut-off events. [2023-01-28 00:19:49,610 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:19:49,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3403 conditions, 2373 events. 379/2373 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9274 event pairs, 0 based on Foata normal form. 0/1909 useless extension candidates. Maximal degree in co-relation 3294. Up to 86 conditions per place. [2023-01-28 00:19:50,531 INFO L119 LiptonReduction]: Number of co-enabled transitions 3304980 [2023-01-28 00:20:17,648 INFO L134 LiptonReduction]: Checked pairs total: 2253068 [2023-01-28 00:20:17,649 INFO L136 LiptonReduction]: Total number of compositions: 1614 [2023-01-28 00:20:17,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:17,650 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:17,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:17,789 INFO L130 PetriNetUnfolder]: 210/675 cut-off events. [2023-01-28 00:20:17,789 INFO L131 PetriNetUnfolder]: For 13202/13202 co-relation queries the response was YES. [2023-01-28 00:20:17,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:17,790 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 00:20:17,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:17,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:17,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1224367229, now seen corresponding path program 1 times [2023-01-28 00:20:17,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:17,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660841587] [2023-01-28 00:20:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:17,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:17,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:17,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:17,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:17,911 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:17,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-01-28 00:20:17,911 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:17,912 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:17,912 WARN L233 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:17,912 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2023-01-28 00:20:18,055 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:18,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:20,057 INFO L130 PetriNetUnfolder]: 388/2429 cut-off events. [2023-01-28 00:20:20,058 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:20:20,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3505 conditions, 2429 events. 388/2429 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9579 event pairs, 0 based on Foata normal form. 0/1954 useless extension candidates. Maximal degree in co-relation 3395. Up to 88 conditions per place. [2023-01-28 00:20:20,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:20,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:20,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:20,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:20,239 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:20,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1657 places, 1915 transitions, 5851 flow [2023-01-28 00:20:21,954 INFO L130 PetriNetUnfolder]: 388/2429 cut-off events. [2023-01-28 00:20:21,955 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:20:22,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3505 conditions, 2429 events. 388/2429 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9579 event pairs, 0 based on Foata normal form. 0/1954 useless extension candidates. Maximal degree in co-relation 3395. Up to 88 conditions per place. [2023-01-28 00:20:22,846 INFO L119 LiptonReduction]: Number of co-enabled transitions 3465026 [2023-01-28 00:20:51,364 INFO L134 LiptonReduction]: Checked pairs total: 2358617 [2023-01-28 00:20:51,364 INFO L136 LiptonReduction]: Total number of compositions: 1652 [2023-01-28 00:20:51,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:20:51,366 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:20:51,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:20:51,513 INFO L130 PetriNetUnfolder]: 215/691 cut-off events. [2023-01-28 00:20:51,513 INFO L131 PetriNetUnfolder]: For 14147/14147 co-relation queries the response was YES. [2023-01-28 00:20:51,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:20:51,513 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 00:20:51,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:20:51,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:20:51,514 INFO L85 PathProgramCache]: Analyzing trace with hash 192067112, now seen corresponding path program 1 times [2023-01-28 00:20:51,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:20:51,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827753029] [2023-01-28 00:20:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:20:51,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:20:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:51,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:20:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:20:51,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:20:51,663 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:20:51,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:20:51,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-01-28 00:20:51,663 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:20:51,664 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:20:51,664 WARN L233 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:20:51,664 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2023-01-28 00:20:51,783 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:20:51,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:53,605 INFO L130 PetriNetUnfolder]: 397/2485 cut-off events. [2023-01-28 00:20:53,605 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:20:53,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3608 conditions, 2485 events. 397/2485 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9726 event pairs, 0 based on Foata normal form. 0/1999 useless extension candidates. Maximal degree in co-relation 3497. Up to 90 conditions per place. [2023-01-28 00:20:53,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:53,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:53,802 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:20:53,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:53,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:53,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1695 places, 1959 transitions, 6030 flow [2023-01-28 00:20:55,459 INFO L130 PetriNetUnfolder]: 397/2485 cut-off events. [2023-01-28 00:20:55,459 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:20:55,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3608 conditions, 2485 events. 397/2485 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9726 event pairs, 0 based on Foata normal form. 0/1999 useless extension candidates. Maximal degree in co-relation 3497. Up to 90 conditions per place. [2023-01-28 00:20:56,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 3628856 [2023-01-28 00:21:24,193 INFO L134 LiptonReduction]: Checked pairs total: 2472329 [2023-01-28 00:21:24,193 INFO L136 LiptonReduction]: Total number of compositions: 1690 [2023-01-28 00:21:24,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:24,214 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:24,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:24,373 INFO L130 PetriNetUnfolder]: 220/707 cut-off events. [2023-01-28 00:21:24,374 INFO L131 PetriNetUnfolder]: For 15136/15136 co-relation queries the response was YES. [2023-01-28 00:21:24,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:24,374 INFO L208 CegarLoopForPetriNet]: trace histogram [45, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:24,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:24,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:24,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1450202272, now seen corresponding path program 1 times [2023-01-28 00:21:24,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:24,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933610891] [2023-01-28 00:21:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:24,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:24,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:24,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:24,478 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:24,478 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:24,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-01-28 00:21:24,479 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:24,479 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:24,479 WARN L233 ceAbstractionStarter]: 44 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:24,479 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 45 thread instances. [2023-01-28 00:21:24,612 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:24,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:26,482 INFO L130 PetriNetUnfolder]: 406/2541 cut-off events. [2023-01-28 00:21:26,482 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:21:26,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 2541 events. 406/2541 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9906 event pairs, 0 based on Foata normal form. 0/2044 useless extension candidates. Maximal degree in co-relation 3600. Up to 92 conditions per place. [2023-01-28 00:21:26,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:26,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:26,710 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:21:26,710 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:26,710 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:26,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1733 places, 2003 transitions, 6211 flow [2023-01-28 00:21:28,715 INFO L130 PetriNetUnfolder]: 406/2541 cut-off events. [2023-01-28 00:21:28,716 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:21:28,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 2541 events. 406/2541 cut-off events. For 16170/16170 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 9906 event pairs, 0 based on Foata normal form. 0/2044 useless extension candidates. Maximal degree in co-relation 3600. Up to 92 conditions per place. [2023-01-28 00:21:29,700 INFO L119 LiptonReduction]: Number of co-enabled transitions 3796470 [2023-01-28 00:21:59,333 INFO L134 LiptonReduction]: Checked pairs total: 2588316 [2023-01-28 00:21:59,333 INFO L136 LiptonReduction]: Total number of compositions: 1728 [2023-01-28 00:21:59,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:21:59,341 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:21:59,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:21:59,526 INFO L130 PetriNetUnfolder]: 225/723 cut-off events. [2023-01-28 00:21:59,527 INFO L131 PetriNetUnfolder]: For 16170/16170 co-relation queries the response was YES. [2023-01-28 00:21:59,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:21:59,527 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:21:59,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:21:59,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:21:59,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1512477240, now seen corresponding path program 1 times [2023-01-28 00:21:59,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:21:59,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208384867] [2023-01-28 00:21:59,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:21:59,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:21:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:59,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:21:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:21:59,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:21:59,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:21:59,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:21:59,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-01-28 00:21:59,639 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:21:59,639 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:21:59,639 WARN L233 ceAbstractionStarter]: 45 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:21:59,639 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 46 thread instances. [2023-01-28 00:21:59,772 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:21:59,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:01,612 INFO L130 PetriNetUnfolder]: 415/2597 cut-off events. [2023-01-28 00:22:01,612 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:22:01,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3817 conditions, 2597 events. 415/2597 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10168 event pairs, 0 based on Foata normal form. 0/2089 useless extension candidates. Maximal degree in co-relation 3704. Up to 94 conditions per place. [2023-01-28 00:22:01,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:01,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:01,876 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:01,876 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:01,876 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:01,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1771 places, 2047 transitions, 6394 flow [2023-01-28 00:22:03,912 INFO L130 PetriNetUnfolder]: 415/2597 cut-off events. [2023-01-28 00:22:03,912 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:22:04,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3817 conditions, 2597 events. 415/2597 cut-off events. For 17250/17250 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10168 event pairs, 0 based on Foata normal form. 0/2089 useless extension candidates. Maximal degree in co-relation 3704. Up to 94 conditions per place. [2023-01-28 00:22:04,831 INFO L119 LiptonReduction]: Number of co-enabled transitions 3967868 [2023-01-28 00:22:34,623 INFO L134 LiptonReduction]: Checked pairs total: 2757283 [2023-01-28 00:22:34,623 INFO L136 LiptonReduction]: Total number of compositions: 1766 [2023-01-28 00:22:34,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:22:34,625 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:22:34,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:22:34,811 INFO L130 PetriNetUnfolder]: 230/739 cut-off events. [2023-01-28 00:22:34,811 INFO L131 PetriNetUnfolder]: For 17250/17250 co-relation queries the response was YES. [2023-01-28 00:22:34,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:22:34,811 INFO L208 CegarLoopForPetriNet]: trace histogram [47, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:22:34,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:22:34,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:22:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash -939926467, now seen corresponding path program 1 times [2023-01-28 00:22:34,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:22:34,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626142719] [2023-01-28 00:22:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:22:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:22:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:34,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:22:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:22:35,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:22:35,073 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:22:35,073 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:22:35,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-01-28 00:22:35,073 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:22:35,073 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:22:35,073 WARN L233 ceAbstractionStarter]: 46 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:22:35,073 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 47 thread instances. [2023-01-28 00:22:35,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:22:35,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:37,148 INFO L130 PetriNetUnfolder]: 424/2653 cut-off events. [2023-01-28 00:22:37,148 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:22:37,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3923 conditions, 2653 events. 424/2653 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10372 event pairs, 0 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 3809. Up to 96 conditions per place. [2023-01-28 00:22:37,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:37,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:37,475 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:22:37,475 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:37,475 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:37,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1809 places, 2091 transitions, 6579 flow [2023-01-28 00:22:39,427 INFO L130 PetriNetUnfolder]: 424/2653 cut-off events. [2023-01-28 00:22:39,427 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:22:39,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3923 conditions, 2653 events. 424/2653 cut-off events. For 18377/18377 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10372 event pairs, 0 based on Foata normal form. 0/2134 useless extension candidates. Maximal degree in co-relation 3809. Up to 96 conditions per place. [2023-01-28 00:22:40,420 INFO L119 LiptonReduction]: Number of co-enabled transitions 4143050 [2023-01-28 00:23:09,974 INFO L134 LiptonReduction]: Checked pairs total: 2861253 [2023-01-28 00:23:09,975 INFO L136 LiptonReduction]: Total number of compositions: 1804 [2023-01-28 00:23:09,976 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:23:09,976 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:23:09,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:23:10,158 INFO L130 PetriNetUnfolder]: 235/755 cut-off events. [2023-01-28 00:23:10,158 INFO L131 PetriNetUnfolder]: For 18377/18377 co-relation queries the response was YES. [2023-01-28 00:23:10,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:23:10,158 INFO L208 CegarLoopForPetriNet]: trace histogram [48, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:23:10,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:23:10,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:23:10,159 INFO L85 PathProgramCache]: Analyzing trace with hash 707618141, now seen corresponding path program 1 times [2023-01-28 00:23:10,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:23:10,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715284382] [2023-01-28 00:23:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:23:10,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:23:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:10,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:23:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:10,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:23:10,378 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:23:10,378 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:23:10,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-01-28 00:23:10,378 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:23:10,379 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:23:10,379 WARN L233 ceAbstractionStarter]: 47 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:23:10,379 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 48 thread instances. [2023-01-28 00:23:10,540 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:23:10,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:12,709 INFO L130 PetriNetUnfolder]: 433/2709 cut-off events. [2023-01-28 00:23:12,709 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:23:12,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4030 conditions, 2709 events. 433/2709 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10614 event pairs, 0 based on Foata normal form. 0/2179 useless extension candidates. Maximal degree in co-relation 3915. Up to 98 conditions per place. [2023-01-28 00:23:12,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:13,049 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:13,049 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:23:13,050 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:13,050 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:13,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1847 places, 2135 transitions, 6766 flow [2023-01-28 00:23:15,147 INFO L130 PetriNetUnfolder]: 433/2709 cut-off events. [2023-01-28 00:23:15,148 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:23:15,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4030 conditions, 2709 events. 433/2709 cut-off events. For 19552/19552 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10614 event pairs, 0 based on Foata normal form. 0/2179 useless extension candidates. Maximal degree in co-relation 3915. Up to 98 conditions per place. [2023-01-28 00:23:16,215 INFO L119 LiptonReduction]: Number of co-enabled transitions 4322016 [2023-01-28 00:23:47,321 INFO L134 LiptonReduction]: Checked pairs total: 2943908 [2023-01-28 00:23:47,321 INFO L136 LiptonReduction]: Total number of compositions: 1842 [2023-01-28 00:23:47,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:23:47,322 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;@165ed01c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:23:47,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:23:47,498 INFO L130 PetriNetUnfolder]: 240/771 cut-off events. [2023-01-28 00:23:47,498 INFO L131 PetriNetUnfolder]: For 19552/19552 co-relation queries the response was YES. [2023-01-28 00:23:47,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:23:47,498 INFO L208 CegarLoopForPetriNet]: trace histogram [49, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:23:47,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:23:47,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:23:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1650900153, now seen corresponding path program 1 times [2023-01-28 00:23:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:23:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70062929] [2023-01-28 00:23:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:23:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:23:47,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:47,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:23:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:23:47,622 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:23:47,622 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:23:47,622 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:23:47,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-01-28 00:23:47,622 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:23:47,622 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:23:47,622 WARN L233 ceAbstractionStarter]: 48 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:23:47,622 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 49 thread instances. [2023-01-28 00:23:47,752 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:23:47,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:50,046 INFO L130 PetriNetUnfolder]: 442/2765 cut-off events. [2023-01-28 00:23:50,047 INFO L131 PetriNetUnfolder]: For 20776/20776 co-relation queries the response was YES. [2023-01-28 00:23:50,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4138 conditions, 2765 events. 442/2765 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10837 event pairs, 0 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 4022. Up to 100 conditions per place. [2023-01-28 00:23:50,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:50,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:50,286 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:23:50,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:50,287 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:50,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1885 places, 2179 transitions, 6955 flow [2023-01-28 00:23:52,486 INFO L130 PetriNetUnfolder]: 442/2765 cut-off events. [2023-01-28 00:23:52,486 INFO L131 PetriNetUnfolder]: For 20776/20776 co-relation queries the response was YES. [2023-01-28 00:23:52,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4138 conditions, 2765 events. 442/2765 cut-off events. For 20776/20776 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 10837 event pairs, 0 based on Foata normal form. 0/2224 useless extension candidates. Maximal degree in co-relation 4022. Up to 100 conditions per place. Received shutdown request... [2023-01-28 00:23:53,389 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 00:23:53,539 INFO L119 LiptonReduction]: Number of co-enabled transitions 4504766 [2023-01-28 00:23:53,547 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 00:23:53,547 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 00:23:53,548 INFO L158 Benchmark]: Toolchain (without parser) took 834926.72ms. Allocated memory was 557.8MB in the beginning and 8.1GB in the end (delta: 7.5GB). Free memory was 513.7MB in the beginning and 4.0GB in the end (delta: -3.4GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2023-01-28 00:23:53,548 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 341.8MB. Free memory is still 289.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:23:53,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.35ms. Allocated memory is still 557.8MB. Free memory was 513.7MB in the beginning and 494.2MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 00:23:53,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.79ms. Allocated memory is still 557.8MB. Free memory was 494.2MB in the beginning and 492.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:23:53,548 INFO L158 Benchmark]: Boogie Preprocessor took 30.54ms. Allocated memory is still 557.8MB. Free memory was 492.7MB in the beginning and 491.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:23:53,548 INFO L158 Benchmark]: RCFGBuilder took 406.60ms. Allocated memory is still 557.8MB. Free memory was 491.1MB in the beginning and 478.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 00:23:53,549 INFO L158 Benchmark]: TraceAbstraction took 834019.48ms. Allocated memory was 557.8MB in the beginning and 8.1GB in the end (delta: 7.5GB). Free memory was 477.5MB in the beginning and 4.0GB in the end (delta: -3.5GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. [2023-01-28 00:23:53,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 341.8MB. Free memory is still 289.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 429.35ms. Allocated memory is still 557.8MB. Free memory was 513.7MB in the beginning and 494.2MB in the end (delta: 19.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 36.79ms. Allocated memory is still 557.8MB. Free memory was 494.2MB in the beginning and 492.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 30.54ms. Allocated memory is still 557.8MB. Free memory was 492.7MB in the beginning and 491.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 406.60ms. Allocated memory is still 557.8MB. Free memory was 491.1MB in the beginning and 478.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 834019.48ms. Allocated memory was 557.8MB in the beginning and 8.1GB in the end (delta: 7.5GB). Free memory was 477.5MB in the beginning and 4.0GB in the end (delta: -3.5GB). Peak memory consumption was 4.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 61 PlacesBefore, 15 PlacesAfterwards, 67 TransitionsBefore, 17 TransitionsAfterwards, 1118 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 57 TotalNumberOfCompositions, 902 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 902, independent: 902, independent conditional: 0, independent unconditional: 902, 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: 550, independent: 550, independent conditional: 0, independent unconditional: 550, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 902, independent: 352, independent conditional: 0, independent unconditional: 352, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 11, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, 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: 2.3s, 99 PlacesBefore, 25 PlacesAfterwards, 111 TransitionsBefore, 30 TransitionsAfterwards, 6020 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 7 ChoiceCompositions, 94 TotalNumberOfCompositions, 4465 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4465, independent: 4465, independent conditional: 0, independent unconditional: 4465, 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: 2902, independent: 2902, independent conditional: 0, independent unconditional: 2902, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4465, independent: 1563, independent conditional: 0, independent unconditional: 1563, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2902, unknown conditional: 0, unknown unconditional: 2902] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, 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: 2.3s, 137 PlacesBefore, 34 PlacesAfterwards, 155 TransitionsBefore, 42 TransitionsAfterwards, 14706 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 10 ChoiceCompositions, 132 TotalNumberOfCompositions, 10769 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10769, independent: 10769, independent conditional: 0, independent unconditional: 10769, 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: 7155, independent: 7155, independent conditional: 0, independent unconditional: 7155, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10769, independent: 3614, independent conditional: 0, independent unconditional: 3614, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 7155, unknown conditional: 0, unknown unconditional: 7155] , Statistics on independence cache: Total cache size (in pairs): 66, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, 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: 3.8s, 175 PlacesBefore, 43 PlacesAfterwards, 199 TransitionsBefore, 54 TransitionsAfterwards, 27176 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 118 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 13 ChoiceCompositions, 170 TotalNumberOfCompositions, 19766 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19766, independent: 19766, independent conditional: 0, independent unconditional: 19766, 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: 13207, independent: 13207, independent conditional: 0, independent unconditional: 13207, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 19766, independent: 6559, independent conditional: 0, independent unconditional: 6559, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 13207, unknown conditional: 0, unknown unconditional: 13207] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, 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: 4.2s, 213 PlacesBefore, 52 PlacesAfterwards, 243 TransitionsBefore, 66 TransitionsAfterwards, 43430 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 16 ChoiceCompositions, 208 TotalNumberOfCompositions, 32005 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32005, independent: 32005, independent conditional: 0, independent unconditional: 32005, 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: 21117, independent: 21117, independent conditional: 0, independent unconditional: 21117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 32005, independent: 10888, independent conditional: 0, independent unconditional: 10888, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 21117, unknown conditional: 0, unknown unconditional: 21117] , Statistics on independence cache: Total cache size (in pairs): 165, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, 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: 4.4s, 251 PlacesBefore, 61 PlacesAfterwards, 287 TransitionsBefore, 78 TransitionsAfterwards, 63468 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 173 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 45 ConcurrentYvCompositions, 19 ChoiceCompositions, 246 TotalNumberOfCompositions, 46057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46057, independent: 46057, independent conditional: 0, independent unconditional: 46057, 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: 30934, independent: 30934, independent conditional: 0, independent unconditional: 30934, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 46057, independent: 15123, independent conditional: 0, independent unconditional: 15123, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30934, unknown conditional: 0, unknown unconditional: 30934] , Statistics on independence cache: Total cache size (in pairs): 231, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, 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: 4.9s, 289 PlacesBefore, 70 PlacesAfterwards, 331 TransitionsBefore, 90 TransitionsAfterwards, 87290 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 201 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 52 ConcurrentYvCompositions, 22 ChoiceCompositions, 284 TotalNumberOfCompositions, 63029 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63029, independent: 63029, independent conditional: 0, independent unconditional: 63029, 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: 42596, independent: 42596, independent conditional: 0, independent unconditional: 42596, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 63029, independent: 20433, independent conditional: 0, independent unconditional: 20433, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 42596, unknown conditional: 0, unknown unconditional: 42596] , Statistics on independence cache: Total cache size (in pairs): 308, Positive cache size: 308, Positive conditional cache size: 0, Positive unconditional cache size: 308, 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: 5.3s, 327 PlacesBefore, 79 PlacesAfterwards, 375 TransitionsBefore, 102 TransitionsAfterwards, 114896 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 227 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 61 ConcurrentYvCompositions, 25 ChoiceCompositions, 322 TotalNumberOfCompositions, 84154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 84154, independent: 84154, independent conditional: 0, independent unconditional: 84154, 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: 55978, independent: 55978, independent conditional: 0, independent unconditional: 55978, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 84154, independent: 28176, independent conditional: 0, independent unconditional: 28176, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 55978, unknown conditional: 0, unknown unconditional: 55978] , Statistics on independence cache: Total cache size (in pairs): 396, Positive cache size: 396, Positive conditional cache size: 0, Positive unconditional cache size: 396, 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: 5.5s, 365 PlacesBefore, 88 PlacesAfterwards, 419 TransitionsBefore, 114 TransitionsAfterwards, 146286 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 256 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 67 ConcurrentYvCompositions, 28 ChoiceCompositions, 360 TotalNumberOfCompositions, 105507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 105507, independent: 105507, independent conditional: 0, independent unconditional: 105507, 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: 71126, independent: 71126, independent conditional: 0, independent unconditional: 71126, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 105507, independent: 34381, independent conditional: 0, independent unconditional: 34381, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 71126, unknown conditional: 0, unknown unconditional: 71126] , Statistics on independence cache: Total cache size (in pairs): 495, Positive cache size: 495, Positive conditional cache size: 0, Positive unconditional cache size: 495, 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: 7.2s, 403 PlacesBefore, 97 PlacesAfterwards, 463 TransitionsBefore, 126 TransitionsAfterwards, 181460 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 284 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 74 ConcurrentYvCompositions, 31 ChoiceCompositions, 398 TotalNumberOfCompositions, 130853 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 130853, independent: 130853, independent conditional: 0, independent unconditional: 130853, 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: 88232, independent: 88232, independent conditional: 0, independent unconditional: 88232, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 130853, independent: 42621, independent conditional: 0, independent unconditional: 42621, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 88232, unknown conditional: 0, unknown unconditional: 88232] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 605, Positive conditional cache size: 0, Positive unconditional cache size: 605, 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: 7.6s, 441 PlacesBefore, 106 PlacesAfterwards, 507 TransitionsBefore, 138 TransitionsAfterwards, 220418 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 309 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 84 ConcurrentYvCompositions, 34 ChoiceCompositions, 436 TotalNumberOfCompositions, 159012 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 159012, independent: 159012, independent conditional: 0, independent unconditional: 159012, 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: 107420, independent: 107420, independent conditional: 0, independent unconditional: 107420, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 159012, independent: 51592, independent conditional: 0, independent unconditional: 51592, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 107420, unknown conditional: 0, unknown unconditional: 107420] , Statistics on independence cache: Total cache size (in pairs): 726, Positive cache size: 726, Positive conditional cache size: 0, Positive unconditional cache size: 726, 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: 6.4s, 479 PlacesBefore, 115 PlacesAfterwards, 551 TransitionsBefore, 150 TransitionsAfterwards, 263160 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 338 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 90 ConcurrentYvCompositions, 37 ChoiceCompositions, 474 TotalNumberOfCompositions, 189789 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 189789, independent: 189789, independent conditional: 0, independent unconditional: 189789, 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: 128199, independent: 128199, independent conditional: 0, independent unconditional: 128199, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 189789, independent: 61590, independent conditional: 0, independent unconditional: 61590, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 128199, unknown conditional: 0, unknown unconditional: 128199] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 858, Positive conditional cache size: 0, Positive unconditional cache size: 858, 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: 8.9s, 517 PlacesBefore, 124 PlacesAfterwards, 595 TransitionsBefore, 162 TransitionsAfterwards, 309686 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 366 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 97 ConcurrentYvCompositions, 40 ChoiceCompositions, 512 TotalNumberOfCompositions, 226100 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 226100, independent: 226100, independent conditional: 0, independent unconditional: 226100, 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: 151116, independent: 151116, independent conditional: 0, independent unconditional: 151116, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 226100, independent: 74984, independent conditional: 0, independent unconditional: 74984, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 151116, unknown conditional: 0, unknown unconditional: 151116] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 1001, Positive conditional cache size: 0, Positive unconditional cache size: 1001, 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: 8.8s, 555 PlacesBefore, 133 PlacesAfterwards, 639 TransitionsBefore, 174 TransitionsAfterwards, 359996 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 393 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 105 ConcurrentYvCompositions, 43 ChoiceCompositions, 550 TotalNumberOfCompositions, 259280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 259280, independent: 259280, independent conditional: 0, independent unconditional: 259280, 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: 175308, independent: 175308, independent conditional: 0, independent unconditional: 175308, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 259280, independent: 83972, independent conditional: 0, independent unconditional: 83972, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 175308, unknown conditional: 0, unknown unconditional: 175308] , Statistics on independence cache: Total cache size (in pairs): 1155, Positive cache size: 1155, Positive conditional cache size: 0, Positive unconditional cache size: 1155, 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: 7.7s, 593 PlacesBefore, 142 PlacesAfterwards, 683 TransitionsBefore, 186 TransitionsAfterwards, 414090 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 425 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 108 ConcurrentYvCompositions, 46 ChoiceCompositions, 588 TotalNumberOfCompositions, 301960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 301960, independent: 301960, independent conditional: 0, independent unconditional: 301960, 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: 201542, independent: 201542, independent conditional: 0, independent unconditional: 201542, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 301960, independent: 100418, independent conditional: 0, independent unconditional: 100418, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 201542, unknown conditional: 0, unknown unconditional: 201542] , Statistics on independence cache: Total cache size (in pairs): 1320, Positive cache size: 1320, Positive conditional cache size: 0, Positive unconditional cache size: 1320, 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: 8.2s, 631 PlacesBefore, 151 PlacesAfterwards, 727 TransitionsBefore, 198 TransitionsAfterwards, 471968 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 449 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 119 ConcurrentYvCompositions, 49 ChoiceCompositions, 626 TotalNumberOfCompositions, 339847 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 339847, independent: 339847, independent conditional: 0, independent unconditional: 339847, 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: 230438, independent: 230438, independent conditional: 0, independent unconditional: 230438, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 339847, independent: 109409, independent conditional: 0, independent unconditional: 109409, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 230438, unknown conditional: 0, unknown unconditional: 230438] , Statistics on independence cache: Total cache size (in pairs): 1496, Positive cache size: 1496, Positive conditional cache size: 0, Positive unconditional cache size: 1496, 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: 9.8s, 669 PlacesBefore, 160 PlacesAfterwards, 771 TransitionsBefore, 210 TransitionsAfterwards, 533630 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 472 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 131 ConcurrentYvCompositions, 52 ChoiceCompositions, 664 TotalNumberOfCompositions, 384431 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 384431, independent: 384431, independent conditional: 0, independent unconditional: 384431, 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: 259875, independent: 259875, independent conditional: 0, independent unconditional: 259875, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 384431, independent: 124556, independent conditional: 0, independent unconditional: 124556, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 259875, unknown conditional: 0, unknown unconditional: 259875] , Statistics on independence cache: Total cache size (in pairs): 1683, Positive cache size: 1683, Positive conditional cache size: 0, Positive unconditional cache size: 1683, 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: 11.4s, 707 PlacesBefore, 169 PlacesAfterwards, 815 TransitionsBefore, 222 TransitionsAfterwards, 599076 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 503 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 135 ConcurrentYvCompositions, 55 ChoiceCompositions, 702 TotalNumberOfCompositions, 431121 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 431121, independent: 431121, independent conditional: 0, independent unconditional: 431121, 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: 292312, independent: 292312, independent conditional: 0, independent unconditional: 292312, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 431121, independent: 138809, independent conditional: 0, independent unconditional: 138809, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 292312, unknown conditional: 0, unknown unconditional: 292312] , Statistics on independence cache: Total cache size (in pairs): 1881, Positive cache size: 1881, Positive conditional cache size: 0, Positive unconditional cache size: 1881, 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: 12.3s, 745 PlacesBefore, 178 PlacesAfterwards, 859 TransitionsBefore, 234 TransitionsAfterwards, 668306 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 529 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 144 ConcurrentYvCompositions, 58 ChoiceCompositions, 740 TotalNumberOfCompositions, 480851 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 480851, independent: 480851, independent conditional: 0, independent unconditional: 480851, 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: 327163, independent: 327163, independent conditional: 0, independent unconditional: 327163, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 480851, independent: 153688, independent conditional: 0, independent unconditional: 153688, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 327163, unknown conditional: 0, unknown unconditional: 327163] , Statistics on independence cache: Total cache size (in pairs): 2090, Positive cache size: 2090, Positive conditional cache size: 0, Positive unconditional cache size: 2090, 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: 12.4s, 783 PlacesBefore, 187 PlacesAfterwards, 903 TransitionsBefore, 246 TransitionsAfterwards, 741320 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 560 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 148 ConcurrentYvCompositions, 61 ChoiceCompositions, 778 TotalNumberOfCompositions, 533087 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 533087, independent: 533087, independent conditional: 0, independent unconditional: 533087, 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: 362330, independent: 362330, independent conditional: 0, independent unconditional: 362330, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 533087, independent: 170757, independent conditional: 0, independent unconditional: 170757, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 362330, unknown conditional: 0, unknown unconditional: 362330] , Statistics on independence cache: Total cache size (in pairs): 2310, Positive cache size: 2310, Positive conditional cache size: 0, Positive unconditional cache size: 2310, 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: 11.5s, 821 PlacesBefore, 196 PlacesAfterwards, 947 TransitionsBefore, 258 TransitionsAfterwards, 818118 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 585 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 158 ConcurrentYvCompositions, 64 ChoiceCompositions, 816 TotalNumberOfCompositions, 568132 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 568132, independent: 568132, independent conditional: 0, independent unconditional: 568132, 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: 398056, independent: 398056, independent conditional: 0, independent unconditional: 398056, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 568132, independent: 170076, independent conditional: 0, independent unconditional: 170076, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 398056, unknown conditional: 0, unknown unconditional: 398056] , Statistics on independence cache: Total cache size (in pairs): 2541, Positive cache size: 2541, Positive conditional cache size: 0, Positive unconditional cache size: 2541, 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: 12.6s, 859 PlacesBefore, 205 PlacesAfterwards, 991 TransitionsBefore, 270 TransitionsAfterwards, 898700 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 613 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 165 ConcurrentYvCompositions, 67 ChoiceCompositions, 854 TotalNumberOfCompositions, 612332 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 612332, independent: 612332, independent conditional: 0, independent unconditional: 612332, 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: 435428, independent: 435428, independent conditional: 0, independent unconditional: 435428, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 612332, independent: 176904, independent conditional: 0, independent unconditional: 176904, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 435428, unknown conditional: 0, unknown unconditional: 435428] , Statistics on independence cache: Total cache size (in pairs): 2783, Positive cache size: 2783, Positive conditional cache size: 0, Positive unconditional cache size: 2783, 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: 13.1s, 897 PlacesBefore, 214 PlacesAfterwards, 1035 TransitionsBefore, 282 TransitionsAfterwards, 983066 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 639 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 174 ConcurrentYvCompositions, 70 ChoiceCompositions, 892 TotalNumberOfCompositions, 669226 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 669226, independent: 669226, independent conditional: 0, independent unconditional: 669226, 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: 476166, independent: 476166, independent conditional: 0, independent unconditional: 476166, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 669226, independent: 193060, independent conditional: 0, independent unconditional: 193060, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 476166, unknown conditional: 0, unknown unconditional: 476166] , Statistics on independence cache: Total cache size (in pairs): 3036, Positive cache size: 3036, Positive conditional cache size: 0, Positive unconditional cache size: 3036, 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: 15.5s, 935 PlacesBefore, 223 PlacesAfterwards, 1079 TransitionsBefore, 294 TransitionsAfterwards, 1071216 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 670 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 178 ConcurrentYvCompositions, 73 ChoiceCompositions, 930 TotalNumberOfCompositions, 739355 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 739355, independent: 739355, independent conditional: 0, independent unconditional: 739355, 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: 520001, independent: 520001, independent conditional: 0, independent unconditional: 520001, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 739355, independent: 219354, independent conditional: 0, independent unconditional: 219354, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 520001, unknown conditional: 0, unknown unconditional: 520001] , Statistics on independence cache: Total cache size (in pairs): 3300, Positive cache size: 3300, Positive conditional cache size: 0, Positive unconditional cache size: 3300, 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: 15.1s, 973 PlacesBefore, 232 PlacesAfterwards, 1123 TransitionsBefore, 306 TransitionsAfterwards, 1163150 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 695 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 188 ConcurrentYvCompositions, 76 ChoiceCompositions, 968 TotalNumberOfCompositions, 792246 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 792246, independent: 792246, independent conditional: 0, independent unconditional: 792246, 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: 562789, independent: 562789, independent conditional: 0, independent unconditional: 562789, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 792246, independent: 229457, independent conditional: 0, independent unconditional: 229457, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 562789, unknown conditional: 0, unknown unconditional: 562789] , Statistics on independence cache: Total cache size (in pairs): 3575, Positive cache size: 3575, Positive conditional cache size: 0, Positive unconditional cache size: 3575, 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: 15.7s, 1011 PlacesBefore, 241 PlacesAfterwards, 1167 TransitionsBefore, 318 TransitionsAfterwards, 1258868 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 728 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 190 ConcurrentYvCompositions, 79 ChoiceCompositions, 1006 TotalNumberOfCompositions, 874661 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 874661, independent: 874661, independent conditional: 0, independent unconditional: 874661, 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: 611533, independent: 611533, independent conditional: 0, independent unconditional: 611533, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 874661, independent: 263128, independent conditional: 0, independent unconditional: 263128, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 611533, unknown conditional: 0, unknown unconditional: 611533] , Statistics on independence cache: Total cache size (in pairs): 3861, Positive cache size: 3861, Positive conditional cache size: 0, Positive unconditional cache size: 3861, 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: 16.4s, 1049 PlacesBefore, 250 PlacesAfterwards, 1211 TransitionsBefore, 330 TransitionsAfterwards, 1358370 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 753 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 200 ConcurrentYvCompositions, 82 ChoiceCompositions, 1044 TotalNumberOfCompositions, 925735 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 925735, independent: 925735, independent conditional: 0, independent unconditional: 925735, 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: 659272, independent: 659272, independent conditional: 0, independent unconditional: 659272, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 925735, independent: 266463, independent conditional: 0, independent unconditional: 266463, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 659272, unknown conditional: 0, unknown unconditional: 659272] , Statistics on independence cache: Total cache size (in pairs): 4158, Positive cache size: 4158, Positive conditional cache size: 0, Positive unconditional cache size: 4158, 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: 18.5s, 1087 PlacesBefore, 259 PlacesAfterwards, 1255 TransitionsBefore, 342 TransitionsAfterwards, 1461656 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 208 ConcurrentYvCompositions, 85 ChoiceCompositions, 1082 TotalNumberOfCompositions, 1029028 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1029028, independent: 1029028, independent conditional: 0, independent unconditional: 1029028, 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: 709050, independent: 709050, independent conditional: 0, independent unconditional: 709050, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1029028, independent: 319978, independent conditional: 0, independent unconditional: 319978, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 709050, unknown conditional: 0, unknown unconditional: 709050] , Statistics on independence cache: Total cache size (in pairs): 4466, Positive cache size: 4466, Positive conditional cache size: 0, Positive unconditional cache size: 4466, 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: 18.8s, 1125 PlacesBefore, 268 PlacesAfterwards, 1299 TransitionsBefore, 354 TransitionsAfterwards, 1568726 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 809 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 214 ConcurrentYvCompositions, 88 ChoiceCompositions, 1120 TotalNumberOfCompositions, 1090804 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1090804, independent: 1090804, independent conditional: 0, independent unconditional: 1090804, 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: 761117, independent: 761117, independent conditional: 0, independent unconditional: 761117, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1090804, independent: 329687, independent conditional: 0, independent unconditional: 329687, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 761117, unknown conditional: 0, unknown unconditional: 761117] , Statistics on independence cache: Total cache size (in pairs): 4785, Positive cache size: 4785, Positive conditional cache size: 0, Positive unconditional cache size: 4785, 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: 19.6s, 1163 PlacesBefore, 277 PlacesAfterwards, 1343 TransitionsBefore, 366 TransitionsAfterwards, 1679580 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 838 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 220 ConcurrentYvCompositions, 91 ChoiceCompositions, 1158 TotalNumberOfCompositions, 1182308 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1182308, independent: 1182308, independent conditional: 0, independent unconditional: 1182308, 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: 815934, independent: 815934, independent conditional: 0, independent unconditional: 815934, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1182308, independent: 366374, independent conditional: 0, independent unconditional: 366374, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 815934, unknown conditional: 0, unknown unconditional: 815934] , Statistics on independence cache: Total cache size (in pairs): 5115, Positive cache size: 5115, Positive conditional cache size: 0, Positive unconditional cache size: 5115, 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: 19.8s, 1201 PlacesBefore, 286 PlacesAfterwards, 1387 TransitionsBefore, 378 TransitionsAfterwards, 1794218 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 865 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 228 ConcurrentYvCompositions, 94 ChoiceCompositions, 1196 TotalNumberOfCompositions, 1223471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1223471, independent: 1223471, independent conditional: 0, independent unconditional: 1223471, 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: 872540, independent: 872540, independent conditional: 0, independent unconditional: 872540, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1223471, independent: 350931, independent conditional: 0, independent unconditional: 350931, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 872540, unknown conditional: 0, unknown unconditional: 872540] , Statistics on independence cache: Total cache size (in pairs): 5456, Positive cache size: 5456, Positive conditional cache size: 0, Positive unconditional cache size: 5456, 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: 19.8s, 1239 PlacesBefore, 295 PlacesAfterwards, 1431 TransitionsBefore, 390 TransitionsAfterwards, 1912640 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 891 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 237 ConcurrentYvCompositions, 97 ChoiceCompositions, 1234 TotalNumberOfCompositions, 1319330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1319330, independent: 1319330, independent conditional: 0, independent unconditional: 1319330, 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: 931827, independent: 931827, independent conditional: 0, independent unconditional: 931827, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1319330, independent: 387503, independent conditional: 0, independent unconditional: 387503, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 931827, unknown conditional: 0, unknown unconditional: 931827] , Statistics on independence cache: Total cache size (in pairs): 5808, Positive cache size: 5808, Positive conditional cache size: 0, Positive unconditional cache size: 5808, 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: 20.4s, 1277 PlacesBefore, 304 PlacesAfterwards, 1475 TransitionsBefore, 402 TransitionsAfterwards, 2034846 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 918 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 245 ConcurrentYvCompositions, 100 ChoiceCompositions, 1272 TotalNumberOfCompositions, 1403086 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1403086, independent: 1403086, independent conditional: 0, independent unconditional: 1403086, 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: 989674, independent: 989674, independent conditional: 0, independent unconditional: 989674, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1403086, independent: 413412, independent conditional: 0, independent unconditional: 413412, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 989674, unknown conditional: 0, unknown unconditional: 989674] , Statistics on independence cache: Total cache size (in pairs): 6171, Positive cache size: 6171, Positive conditional cache size: 0, Positive unconditional cache size: 6171, 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: 21.4s, 1315 PlacesBefore, 313 PlacesAfterwards, 1519 TransitionsBefore, 414 TransitionsAfterwards, 2160836 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 951 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 247 ConcurrentYvCompositions, 103 ChoiceCompositions, 1310 TotalNumberOfCompositions, 1500860 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1500860, independent: 1500860, independent conditional: 0, independent unconditional: 1500860, 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: 1050185, independent: 1050185, independent conditional: 0, independent unconditional: 1050185, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1500860, independent: 450675, independent conditional: 0, independent unconditional: 450675, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1050185, unknown conditional: 0, unknown unconditional: 1050185] , Statistics on independence cache: Total cache size (in pairs): 6545, Positive cache size: 6545, Positive conditional cache size: 0, Positive unconditional cache size: 6545, 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: 24.2s, 1353 PlacesBefore, 322 PlacesAfterwards, 1563 TransitionsBefore, 426 TransitionsAfterwards, 2290610 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 972 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 261 ConcurrentYvCompositions, 106 ChoiceCompositions, 1348 TotalNumberOfCompositions, 1611051 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1611051, independent: 1611051, independent conditional: 0, independent unconditional: 1611051, 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: 1109850, independent: 1109850, independent conditional: 0, independent unconditional: 1109850, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1611051, independent: 501201, independent conditional: 0, independent unconditional: 501201, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1109850, unknown conditional: 0, unknown unconditional: 1109850] , Statistics on independence cache: Total cache size (in pairs): 6930, Positive cache size: 6930, Positive conditional cache size: 0, Positive unconditional cache size: 6930, 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: 25.1s, 1391 PlacesBefore, 331 PlacesAfterwards, 1607 TransitionsBefore, 438 TransitionsAfterwards, 2424168 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1003 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 265 ConcurrentYvCompositions, 109 ChoiceCompositions, 1386 TotalNumberOfCompositions, 1651964 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1651964, independent: 1651964, independent conditional: 0, independent unconditional: 1651964, 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: 1177899, independent: 1177899, independent conditional: 0, independent unconditional: 1177899, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1651964, independent: 474065, independent conditional: 0, independent unconditional: 474065, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1177899, unknown conditional: 0, unknown unconditional: 1177899] , Statistics on independence cache: Total cache size (in pairs): 7326, Positive cache size: 7326, Positive conditional cache size: 0, Positive unconditional cache size: 7326, 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: 22.4s, 1429 PlacesBefore, 340 PlacesAfterwards, 1651 TransitionsBefore, 450 TransitionsAfterwards, 2561510 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 1026 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 277 ConcurrentYvCompositions, 112 ChoiceCompositions, 1424 TotalNumberOfCompositions, 1803999 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1803999, independent: 1803999, independent conditional: 0, independent unconditional: 1803999, 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: 1242377, independent: 1242377, independent conditional: 0, independent unconditional: 1242377, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1803999, independent: 561622, independent conditional: 0, independent unconditional: 561622, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1242377, unknown conditional: 0, unknown unconditional: 1242377] , Statistics on independence cache: Total cache size (in pairs): 7733, Positive cache size: 7733, Positive conditional cache size: 0, Positive unconditional cache size: 7733, 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: 26.3s, 1467 PlacesBefore, 349 PlacesAfterwards, 1695 TransitionsBefore, 462 TransitionsAfterwards, 2702636 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 1060 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 278 ConcurrentYvCompositions, 115 ChoiceCompositions, 1462 TotalNumberOfCompositions, 1900286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1900286, independent: 1900286, independent conditional: 0, independent unconditional: 1900286, 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: 1310320, independent: 1310320, independent conditional: 0, independent unconditional: 1310320, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1900286, independent: 589966, independent conditional: 0, independent unconditional: 589966, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1310320, unknown conditional: 0, unknown unconditional: 1310320] , Statistics on independence cache: Total cache size (in pairs): 8151, Positive cache size: 8151, Positive conditional cache size: 0, Positive unconditional cache size: 8151, 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: 27.9s, 1505 PlacesBefore, 358 PlacesAfterwards, 1739 TransitionsBefore, 474 TransitionsAfterwards, 2847546 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1085 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 288 ConcurrentYvCompositions, 118 ChoiceCompositions, 1500 TotalNumberOfCompositions, 1939921 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1939921, independent: 1939921, independent conditional: 0, independent unconditional: 1939921, 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: 1380928, independent: 1380928, independent conditional: 0, independent unconditional: 1380928, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1939921, independent: 558993, independent conditional: 0, independent unconditional: 558993, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1380928, unknown conditional: 0, unknown unconditional: 1380928] , Statistics on independence cache: Total cache size (in pairs): 8580, Positive cache size: 8580, Positive conditional cache size: 0, Positive unconditional cache size: 8580, 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: 27.2s, 1543 PlacesBefore, 367 PlacesAfterwards, 1783 TransitionsBefore, 486 TransitionsAfterwards, 2996240 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1109 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 299 ConcurrentYvCompositions, 121 ChoiceCompositions, 1538 TotalNumberOfCompositions, 2042420 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2042420, independent: 2042420, independent conditional: 0, independent unconditional: 2042420, 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: 1459592, independent: 1459592, independent conditional: 0, independent unconditional: 1459592, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2042420, independent: 582828, independent conditional: 0, independent unconditional: 582828, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1459592, unknown conditional: 0, unknown unconditional: 1459592] , Statistics on independence cache: Total cache size (in pairs): 9020, Positive cache size: 9020, Positive conditional cache size: 0, Positive unconditional cache size: 9020, 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: 27.4s, 1581 PlacesBefore, 376 PlacesAfterwards, 1827 TransitionsBefore, 498 TransitionsAfterwards, 3148718 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1138 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 305 ConcurrentYvCompositions, 124 ChoiceCompositions, 1576 TotalNumberOfCompositions, 2188235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2188235, independent: 2188235, independent conditional: 0, independent unconditional: 2188235, 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: 1529480, independent: 1529480, independent conditional: 0, independent unconditional: 1529480, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2188235, independent: 658755, independent conditional: 0, independent unconditional: 658755, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1529480, unknown conditional: 0, unknown unconditional: 1529480] , Statistics on independence cache: Total cache size (in pairs): 9471, Positive cache size: 9471, Positive conditional cache size: 0, Positive unconditional cache size: 9471, 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: 30.0s, 1619 PlacesBefore, 385 PlacesAfterwards, 1871 TransitionsBefore, 510 TransitionsAfterwards, 3304980 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1173 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 305 ConcurrentYvCompositions, 127 ChoiceCompositions, 1614 TotalNumberOfCompositions, 2253068 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2253068, independent: 2253068, independent conditional: 0, independent unconditional: 2253068, 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: 1606990, independent: 1606990, independent conditional: 0, independent unconditional: 1606990, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2253068, independent: 646078, independent conditional: 0, independent unconditional: 646078, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1606990, unknown conditional: 0, unknown unconditional: 1606990] , Statistics on independence cache: Total cache size (in pairs): 9933, Positive cache size: 9933, Positive conditional cache size: 0, Positive unconditional cache size: 9933, 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: 31.1s, 1657 PlacesBefore, 394 PlacesAfterwards, 1915 TransitionsBefore, 522 TransitionsAfterwards, 3465026 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1199 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 314 ConcurrentYvCompositions, 130 ChoiceCompositions, 1652 TotalNumberOfCompositions, 2358617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2358617, independent: 2358617, independent conditional: 0, independent unconditional: 2358617, 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: 1678279, independent: 1678279, independent conditional: 0, independent unconditional: 1678279, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2358617, independent: 680338, independent conditional: 0, independent unconditional: 680338, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1678279, unknown conditional: 0, unknown unconditional: 1678279] , Statistics on independence cache: Total cache size (in pairs): 10406, Positive cache size: 10406, Positive conditional cache size: 0, Positive unconditional cache size: 10406, 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: 30.4s, 1695 PlacesBefore, 403 PlacesAfterwards, 1959 TransitionsBefore, 534 TransitionsAfterwards, 3628856 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1222 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 326 ConcurrentYvCompositions, 133 ChoiceCompositions, 1690 TotalNumberOfCompositions, 2472329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2472329, independent: 2472329, independent conditional: 0, independent unconditional: 2472329, 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: 1758364, independent: 1758364, independent conditional: 0, independent unconditional: 1758364, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2472329, independent: 713965, independent conditional: 0, independent unconditional: 713965, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1758364, unknown conditional: 0, unknown unconditional: 1758364] , Statistics on independence cache: Total cache size (in pairs): 10890, Positive cache size: 10890, Positive conditional cache size: 0, Positive unconditional cache size: 10890, 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: 32.6s, 1733 PlacesBefore, 412 PlacesAfterwards, 2003 TransitionsBefore, 546 TransitionsAfterwards, 3796470 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1252 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 331 ConcurrentYvCompositions, 136 ChoiceCompositions, 1728 TotalNumberOfCompositions, 2588316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2588316, independent: 2588316, independent conditional: 0, independent unconditional: 2588316, 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: 1841376, independent: 1841376, independent conditional: 0, independent unconditional: 1841376, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2588316, independent: 746940, independent conditional: 0, independent unconditional: 746940, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1841376, unknown conditional: 0, unknown unconditional: 1841376] , Statistics on independence cache: Total cache size (in pairs): 11385, Positive cache size: 11385, Positive conditional cache size: 0, Positive unconditional cache size: 11385, 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: 32.7s, 1771 PlacesBefore, 421 PlacesAfterwards, 2047 TransitionsBefore, 558 TransitionsAfterwards, 3967868 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1280 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 338 ConcurrentYvCompositions, 139 ChoiceCompositions, 1766 TotalNumberOfCompositions, 2757283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2757283, independent: 2757283, independent conditional: 0, independent unconditional: 2757283, 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: 1921858, independent: 1921858, independent conditional: 0, independent unconditional: 1921858, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2757283, independent: 835425, independent conditional: 0, independent unconditional: 835425, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1921858, unknown conditional: 0, unknown unconditional: 1921858] , Statistics on independence cache: Total cache size (in pairs): 11891, Positive cache size: 11891, Positive conditional cache size: 0, Positive unconditional cache size: 11891, 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: 32.5s, 1809 PlacesBefore, 430 PlacesAfterwards, 2091 TransitionsBefore, 570 TransitionsAfterwards, 4143050 CoEnabledTransitionPairs, 6 FixpointIterations, 9 TrivialSequentialCompositions, 1311 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 342 ConcurrentYvCompositions, 142 ChoiceCompositions, 1804 TotalNumberOfCompositions, 2861253 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2861253, independent: 2861253, independent conditional: 0, independent unconditional: 2861253, 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: 2006139, independent: 2006139, independent conditional: 0, independent unconditional: 2006139, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2861253, independent: 855114, independent conditional: 0, independent unconditional: 855114, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2006139, unknown conditional: 0, unknown unconditional: 2006139] , Statistics on independence cache: Total cache size (in pairs): 12408, Positive cache size: 12408, Positive conditional cache size: 0, Positive unconditional cache size: 12408, 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: 34.3s, 1847 PlacesBefore, 439 PlacesAfterwards, 2135 TransitionsBefore, 582 TransitionsAfterwards, 4322016 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1339 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 349 ConcurrentYvCompositions, 145 ChoiceCompositions, 1842 TotalNumberOfCompositions, 2943908 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2943908, independent: 2943908, independent conditional: 0, independent unconditional: 2943908, 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: 2096524, independent: 2096524, independent conditional: 0, independent unconditional: 2096524, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2943908, independent: 847384, independent conditional: 0, independent unconditional: 847384, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2096524, unknown conditional: 0, unknown unconditional: 2096524] , Statistics on independence cache: Total cache size (in pairs): 12936, Positive cache size: 12936, Positive conditional cache size: 0, Positive unconditional cache size: 12936, 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 - 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 1885 places, 2179 transitions, 6955 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1885 places, 2179 transitions, 6955 flow and 4504766 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown