/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 04:45:10,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 04:45:10,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-24 04:45:10,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 04:45:10,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 04:45:10,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 04:45:10,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 04:45:10,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 04:45:10,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 04:45:10,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 04:45:10,667 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 04:45:10,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 04:45:10,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 04:45:10,668 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 04:45:10,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 04:45:10,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 04:45:10,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 04:45:10,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 04:45:10,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 04:45:10,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 04:45:10,670 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 04:45:10,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 04:45:10,670 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 04:45:10,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 04:45:10,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 04:45:10,671 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 04:45:10,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 04:45:10,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:45:10,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 04:45:10,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 04:45:10,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 04:45:10,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 04:45:10,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 04:45:10,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 04:45:10,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 04:45:10,674 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST [2023-08-24 04:45:10,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 04:45:10,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 04:45:10,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 04:45:10,990 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 04:45:10,990 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 04:45:10,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-24 04:45:12,162 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 04:45:12,448 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 04:45:12,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-24 04:45:12,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68b7af56/08491cfd019e46759006f1edc161652a/FLAGb311d9cd8 [2023-08-24 04:45:12,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68b7af56/08491cfd019e46759006f1edc161652a [2023-08-24 04:45:12,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 04:45:12,475 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 04:45:12,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 04:45:12,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 04:45:12,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 04:45:12,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:12,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743cf57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12, skipping insertion in model container [2023-08-24 04:45:12,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:12,523 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 04:45:12,838 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30285,30298] [2023-08-24 04:45:12,843 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30729,30742] [2023-08-24 04:45:12,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:45:12,865 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 04:45:12,894 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-24 04:45:12,896 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-24 04:45:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [686] [2023-08-24 04:45:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [687] [2023-08-24 04:45:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [688] [2023-08-24 04:45:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [689] [2023-08-24 04:45:12,904 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [690] [2023-08-24 04:45:12,913 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [701] [2023-08-24 04:45:12,913 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [702] [2023-08-24 04:45:12,913 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [703] [2023-08-24 04:45:12,914 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [704] [2023-08-24 04:45:12,917 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30285,30298] [2023-08-24 04:45:12,918 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [708] [2023-08-24 04:45:12,918 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [709] [2023-08-24 04:45:12,924 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [722] [2023-08-24 04:45:12,925 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i[30729,30742] [2023-08-24 04:45:12,925 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [726] [2023-08-24 04:45:12,926 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [727] [2023-08-24 04:45:12,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 04:45:12,968 INFO L206 MainTranslator]: Completed translation [2023-08-24 04:45:12,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12 WrapperNode [2023-08-24 04:45:12,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 04:45:12,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 04:45:12,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 04:45:12,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 04:45:12,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,035 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2023-08-24 04:45:13,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 04:45:13,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 04:45:13,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 04:45:13,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 04:45:13,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 04:45:13,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 04:45:13,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 04:45:13,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 04:45:13,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (1/1) ... [2023-08-24 04:45:13,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 04:45:13,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 04:45:13,128 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-24 04:45:13,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-24 04:45:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 04:45:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 04:45:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 04:45:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 04:45:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 04:45:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 04:45:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 04:45:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 04:45:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 04:45:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 04:45:13,165 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 04:45:13,281 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 04:45:13,283 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 04:45:13,500 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 04:45:13,699 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 04:45:13,699 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-24 04:45:13,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:45:13 BoogieIcfgContainer [2023-08-24 04:45:13,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 04:45:13,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 04:45:13,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 04:45:13,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 04:45:13,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 04:45:12" (1/3) ... [2023-08-24 04:45:13,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b102ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:45:13, skipping insertion in model container [2023-08-24 04:45:13,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 04:45:12" (2/3) ... [2023-08-24 04:45:13,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b102ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 04:45:13, skipping insertion in model container [2023-08-24 04:45:13,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 04:45:13" (3/3) ... [2023-08-24 04:45:13,711 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-08-24 04:45:13,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 04:45:13,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-24 04:45:13,726 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 04:45:13,811 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:13,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,911 INFO L124 PetriNetUnfolderBase]: 9/108 cut-off events. [2023-08-24 04:45:13,912 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:45:13,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 9/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-24 04:45:13,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,925 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:13,939 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 201 flow [2023-08-24 04:45:13,968 INFO L124 PetriNetUnfolderBase]: 9/108 cut-off events. [2023-08-24 04:45:13,968 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:45:13,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 9/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 219 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-08-24 04:45:13,970 INFO L119 LiptonReduction]: Number of co-enabled transitions 1690 [2023-08-24 04:45:17,039 INFO L134 LiptonReduction]: Checked pairs total: 2354 [2023-08-24 04:45:17,039 INFO L136 LiptonReduction]: Total number of compositions: 84 [2023-08-24 04:45:17,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:17,067 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:17,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:17,074 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:17,074 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2023-08-24 04:45:17,075 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 04:45:17,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:17,075 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 04:45:17,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:17,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:17,080 INFO L85 PathProgramCache]: Analyzing trace with hash 147020590, now seen corresponding path program 1 times [2023-08-24 04:45:17,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:17,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520573954] [2023-08-24 04:45:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:17,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:17,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:17,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:17,263 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:17,263 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:17,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 04:45:17,266 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:17,269 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:17,270 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:17,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 04:45:17,341 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:17,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,397 INFO L124 PetriNetUnfolderBase]: 17/186 cut-off events. [2023-08-24 04:45:17,397 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:45:17,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 186 events. 17/186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 590 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-08-24 04:45:17,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,404 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:17,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,405 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 164 transitions, 340 flow [2023-08-24 04:45:17,436 INFO L124 PetriNetUnfolderBase]: 17/186 cut-off events. [2023-08-24 04:45:17,436 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:45:17,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 186 events. 17/186 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 590 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2023-08-24 04:45:17,445 INFO L119 LiptonReduction]: Number of co-enabled transitions 11960 [2023-08-24 04:45:21,632 INFO L134 LiptonReduction]: Checked pairs total: 17804 [2023-08-24 04:45:21,632 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-08-24 04:45:21,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:21,635 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:21,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:21,661 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:21,661 INFO L124 PetriNetUnfolderBase]: 14/57 cut-off events. [2023-08-24 04:45:21,661 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 04:45:21,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:21,662 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 04:45:21,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:21,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash -411397135, now seen corresponding path program 1 times [2023-08-24 04:45:21,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:21,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677176472] [2023-08-24 04:45:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:21,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:21,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:21,742 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:21,742 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:21,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:21,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 04:45:21,742 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:21,743 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:21,743 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:21,743 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 04:45:21,815 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:21,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,861 INFO L124 PetriNetUnfolderBase]: 25/264 cut-off events. [2023-08-24 04:45:21,861 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:45:21,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 264 events. 25/264 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1004 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-24 04:45:21,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,868 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:21,868 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,868 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 230 transitions, 481 flow [2023-08-24 04:45:21,903 INFO L124 PetriNetUnfolderBase]: 25/264 cut-off events. [2023-08-24 04:45:21,903 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:45:21,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 264 events. 25/264 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1004 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-08-24 04:45:21,921 INFO L119 LiptonReduction]: Number of co-enabled transitions 30810 [2023-08-24 04:45:27,716 INFO L134 LiptonReduction]: Checked pairs total: 46397 [2023-08-24 04:45:27,717 INFO L136 LiptonReduction]: Total number of compositions: 198 [2023-08-24 04:45:27,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:27,719 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:27,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:27,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:27,728 INFO L124 PetriNetUnfolderBase]: 21/84 cut-off events. [2023-08-24 04:45:27,728 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 04:45:27,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:27,728 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 04:45:27,729 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:27,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:27,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1335470231, now seen corresponding path program 1 times [2023-08-24 04:45:27,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:27,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072112855] [2023-08-24 04:45:27,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:27,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:27,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:27,785 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:27,785 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:27,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:27,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 04:45:27,786 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:27,786 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:27,786 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:27,786 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 04:45:27,889 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:27,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,938 INFO L124 PetriNetUnfolderBase]: 33/342 cut-off events. [2023-08-24 04:45:27,938 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:45:27,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 342 events. 33/342 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1412 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 272. Up to 10 conditions per place. [2023-08-24 04:45:27,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,946 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:27,946 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 296 transitions, 624 flow [2023-08-24 04:45:27,993 INFO L124 PetriNetUnfolderBase]: 33/342 cut-off events. [2023-08-24 04:45:27,993 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:45:27,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 342 events. 33/342 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1412 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 272. Up to 10 conditions per place. [2023-08-24 04:45:28,014 INFO L119 LiptonReduction]: Number of co-enabled transitions 58240 [2023-08-24 04:45:35,150 INFO L134 LiptonReduction]: Checked pairs total: 90591 [2023-08-24 04:45:35,151 INFO L136 LiptonReduction]: Total number of compositions: 251 [2023-08-24 04:45:35,152 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:35,153 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:35,153 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:35,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:35,164 INFO L124 PetriNetUnfolderBase]: 28/107 cut-off events. [2023-08-24 04:45:35,165 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 04:45:35,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:35,165 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-08-24 04:45:35,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:35,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1293479595, now seen corresponding path program 1 times [2023-08-24 04:45:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186442766] [2023-08-24 04:45:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:35,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:35,250 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:35,250 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:35,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:35,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 04:45:35,251 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:35,251 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:35,251 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:35,251 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-08-24 04:45:35,332 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:35,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,403 INFO L124 PetriNetUnfolderBase]: 41/420 cut-off events. [2023-08-24 04:45:35,403 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:45:35,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 420 events. 41/420 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1829 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 355. Up to 12 conditions per place. [2023-08-24 04:45:35,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,414 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,414 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:35,414 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,414 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 337 places, 362 transitions, 769 flow [2023-08-24 04:45:35,488 INFO L124 PetriNetUnfolderBase]: 41/420 cut-off events. [2023-08-24 04:45:35,488 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:45:35,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 420 events. 41/420 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1829 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 355. Up to 12 conditions per place. [2023-08-24 04:45:35,516 INFO L119 LiptonReduction]: Number of co-enabled transitions 94250 [2023-08-24 04:45:44,119 INFO L134 LiptonReduction]: Checked pairs total: 149970 [2023-08-24 04:45:44,119 INFO L136 LiptonReduction]: Total number of compositions: 311 [2023-08-24 04:45:44,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:44,121 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:44,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:44,137 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:44,137 INFO L124 PetriNetUnfolderBase]: 35/135 cut-off events. [2023-08-24 04:45:44,137 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-24 04:45:44,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:44,137 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:45:44,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:44,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:44,138 INFO L85 PathProgramCache]: Analyzing trace with hash 225335959, now seen corresponding path program 1 times [2023-08-24 04:45:44,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:44,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430739014] [2023-08-24 04:45:44,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:44,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:44,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:44,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:44,177 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:44,178 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:44,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 04:45:44,178 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:44,179 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:44,179 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:44,179 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-08-24 04:45:44,316 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:44,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,406 INFO L124 PetriNetUnfolderBase]: 49/498 cut-off events. [2023-08-24 04:45:44,406 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:45:44,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 498 events. 49/498 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2243 event pairs, 0 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 439. Up to 14 conditions per place. [2023-08-24 04:45:44,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:44,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,423 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 428 transitions, 916 flow [2023-08-24 04:45:44,510 INFO L124 PetriNetUnfolderBase]: 49/498 cut-off events. [2023-08-24 04:45:44,510 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:45:44,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 498 events. 49/498 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2243 event pairs, 0 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 439. Up to 14 conditions per place. [2023-08-24 04:45:44,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 138840 [2023-08-24 04:45:56,582 INFO L134 LiptonReduction]: Checked pairs total: 204167 [2023-08-24 04:45:56,582 INFO L136 LiptonReduction]: Total number of compositions: 363 [2023-08-24 04:45:56,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:45:56,585 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:45:56,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:45:56,603 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:45:56,603 INFO L124 PetriNetUnfolderBase]: 42/159 cut-off events. [2023-08-24 04:45:56,603 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-08-24 04:45:56,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:45:56,604 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:45:56,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:45:56,604 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:45:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash 808485537, now seen corresponding path program 1 times [2023-08-24 04:45:56,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:45:56,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369071220] [2023-08-24 04:45:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:45:56,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:45:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:56,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:45:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:45:56,648 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:45:56,648 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:45:56,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:45:56,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 04:45:56,649 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:45:56,649 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:45:56,650 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:45:56,650 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-08-24 04:45:56,745 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:45:56,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:56,867 INFO L124 PetriNetUnfolderBase]: 57/576 cut-off events. [2023-08-24 04:45:56,868 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:45:56,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 576 events. 57/576 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2654 event pairs, 0 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 524. Up to 16 conditions per place. [2023-08-24 04:45:56,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:56,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:56,890 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:45:56,890 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:56,891 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:56,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 459 places, 494 transitions, 1065 flow [2023-08-24 04:45:57,013 INFO L124 PetriNetUnfolderBase]: 57/576 cut-off events. [2023-08-24 04:45:57,013 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:45:57,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 576 events. 57/576 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2654 event pairs, 0 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 524. Up to 16 conditions per place. [2023-08-24 04:45:57,068 INFO L119 LiptonReduction]: Number of co-enabled transitions 192010 [2023-08-24 04:46:08,560 INFO L134 LiptonReduction]: Checked pairs total: 275673 [2023-08-24 04:46:08,561 INFO L136 LiptonReduction]: Total number of compositions: 420 [2023-08-24 04:46:08,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:46:08,563 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:46:08,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:46:08,584 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:46:08,584 INFO L124 PetriNetUnfolderBase]: 49/185 cut-off events. [2023-08-24 04:46:08,585 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-08-24 04:46:08,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:46:08,585 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:46:08,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:46:08,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:46:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash -922688473, now seen corresponding path program 1 times [2023-08-24 04:46:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:46:08,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116978312] [2023-08-24 04:46:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:46:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:46:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:08,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:46:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:08,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:46:08,628 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:46:08,628 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:46:08,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 04:46:08,629 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:46:08,629 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:46:08,629 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:46:08,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-08-24 04:46:08,742 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:46:08,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:08,897 INFO L124 PetriNetUnfolderBase]: 65/654 cut-off events. [2023-08-24 04:46:08,898 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:46:08,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 654 events. 65/654 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3058 event pairs, 0 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 610. Up to 18 conditions per place. [2023-08-24 04:46:08,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:08,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:08,921 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:46:08,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:08,921 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:08,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 520 places, 560 transitions, 1216 flow [2023-08-24 04:46:09,068 INFO L124 PetriNetUnfolderBase]: 65/654 cut-off events. [2023-08-24 04:46:09,068 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:46:09,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 654 events. 65/654 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3058 event pairs, 0 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 610. Up to 18 conditions per place. [2023-08-24 04:46:09,137 INFO L119 LiptonReduction]: Number of co-enabled transitions 253760 [2023-08-24 04:46:24,485 INFO L134 LiptonReduction]: Checked pairs total: 372709 [2023-08-24 04:46:24,486 INFO L136 LiptonReduction]: Total number of compositions: 481 [2023-08-24 04:46:24,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:46:24,488 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:46:24,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:46:24,509 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:46:24,510 INFO L124 PetriNetUnfolderBase]: 56/213 cut-off events. [2023-08-24 04:46:24,510 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-24 04:46:24,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:46:24,510 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:46:24,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:46:24,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:46:24,510 INFO L85 PathProgramCache]: Analyzing trace with hash -138790727, now seen corresponding path program 1 times [2023-08-24 04:46:24,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:46:24,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163875090] [2023-08-24 04:46:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:46:24,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:46:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:24,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:46:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:24,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:46:24,556 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:46:24,556 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:46:24,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 04:46:24,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:46:24,557 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:46:24,557 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:46:24,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-08-24 04:46:24,708 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:46:24,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:24,880 INFO L124 PetriNetUnfolderBase]: 73/732 cut-off events. [2023-08-24 04:46:24,880 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:46:24,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 732 events. 73/732 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3458 event pairs, 0 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 698. Up to 20 conditions per place. [2023-08-24 04:46:24,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:24,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:24,905 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:46:24,905 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:24,905 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:24,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 626 transitions, 1369 flow [2023-08-24 04:46:25,088 INFO L124 PetriNetUnfolderBase]: 73/732 cut-off events. [2023-08-24 04:46:25,089 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:46:25,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 805 conditions, 732 events. 73/732 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3458 event pairs, 0 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 698. Up to 20 conditions per place. [2023-08-24 04:46:25,158 INFO L119 LiptonReduction]: Number of co-enabled transitions 324090 [2023-08-24 04:46:41,100 INFO L134 LiptonReduction]: Checked pairs total: 489183 [2023-08-24 04:46:41,100 INFO L136 LiptonReduction]: Total number of compositions: 538 [2023-08-24 04:46:41,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:46:41,102 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:46:41,102 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:46:41,126 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:46:41,127 INFO L124 PetriNetUnfolderBase]: 63/241 cut-off events. [2023-08-24 04:46:41,127 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-08-24 04:46:41,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:46:41,127 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:46:41,127 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:46:41,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:46:41,128 INFO L85 PathProgramCache]: Analyzing trace with hash -190864054, now seen corresponding path program 1 times [2023-08-24 04:46:41,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:46:41,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762076236] [2023-08-24 04:46:41,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:46:41,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:46:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:41,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:46:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:41,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:46:41,176 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:46:41,176 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:46:41,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 04:46:41,177 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:46:41,177 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:46:41,177 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:46:41,177 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-08-24 04:46:41,311 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:46:41,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,529 INFO L124 PetriNetUnfolderBase]: 81/810 cut-off events. [2023-08-24 04:46:41,530 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:46:41,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 896 conditions, 810 events. 81/810 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3904 event pairs, 0 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 788. Up to 22 conditions per place. [2023-08-24 04:46:41,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,568 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:46:41,568 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,569 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 642 places, 692 transitions, 1524 flow [2023-08-24 04:46:41,831 INFO L124 PetriNetUnfolderBase]: 81/810 cut-off events. [2023-08-24 04:46:41,831 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:46:41,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 896 conditions, 810 events. 81/810 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3904 event pairs, 0 based on Foata normal form. 0/698 useless extension candidates. Maximal degree in co-relation 788. Up to 22 conditions per place. [2023-08-24 04:46:41,905 INFO L119 LiptonReduction]: Number of co-enabled transitions 403000 [2023-08-24 04:46:58,660 INFO L134 LiptonReduction]: Checked pairs total: 592134 [2023-08-24 04:46:58,660 INFO L136 LiptonReduction]: Total number of compositions: 591 [2023-08-24 04:46:58,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:46:58,662 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:46:58,662 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:46:58,693 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:46:58,693 INFO L124 PetriNetUnfolderBase]: 70/265 cut-off events. [2023-08-24 04:46:58,693 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2023-08-24 04:46:58,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:46:58,693 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:46:58,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:46:58,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:46:58,694 INFO L85 PathProgramCache]: Analyzing trace with hash 399007510, now seen corresponding path program 1 times [2023-08-24 04:46:58,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:46:58,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525207829] [2023-08-24 04:46:58,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:46:58,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:46:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:58,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:46:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:46:58,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:46:58,749 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:46:58,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:46:58,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 04:46:58,749 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:46:58,750 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:46:58,750 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:46:58,750 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-08-24 04:46:58,894 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:46:58,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,148 INFO L124 PetriNetUnfolderBase]: 89/888 cut-off events. [2023-08-24 04:46:59,148 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:46:59,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 888 events. 89/888 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4311 event pairs, 0 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 879. Up to 24 conditions per place. [2023-08-24 04:46:59,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,182 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,182 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:46:59,182 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,182 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 703 places, 758 transitions, 1681 flow [2023-08-24 04:46:59,417 INFO L124 PetriNetUnfolderBase]: 89/888 cut-off events. [2023-08-24 04:46:59,418 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:46:59,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 888 events. 89/888 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4311 event pairs, 0 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 879. Up to 24 conditions per place. [2023-08-24 04:46:59,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 490490 [2023-08-24 04:47:18,875 INFO L134 LiptonReduction]: Checked pairs total: 715948 [2023-08-24 04:47:18,875 INFO L136 LiptonReduction]: Total number of compositions: 643 [2023-08-24 04:47:18,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:47:18,877 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:47:18,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:47:18,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:47:18,908 INFO L124 PetriNetUnfolderBase]: 77/287 cut-off events. [2023-08-24 04:47:18,908 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-08-24 04:47:18,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:47:18,908 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:47:18,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:47:18,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:47:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -146675204, now seen corresponding path program 1 times [2023-08-24 04:47:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:47:18,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104413212] [2023-08-24 04:47:18,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:47:18,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:47:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:47:18,936 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:47:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:47:18,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:47:18,965 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:47:18,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:47:18,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 04:47:18,966 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:47:18,966 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:47:18,966 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:47:18,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-08-24 04:47:19,179 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:47:19,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,499 INFO L124 PetriNetUnfolderBase]: 97/966 cut-off events. [2023-08-24 04:47:19,500 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:47:19,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 966 events. 97/966 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4707 event pairs, 0 based on Foata normal form. 0/832 useless extension candidates. Maximal degree in co-relation 971. Up to 26 conditions per place. [2023-08-24 04:47:19,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,544 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:47:19,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,544 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 764 places, 824 transitions, 1840 flow [2023-08-24 04:47:19,815 INFO L124 PetriNetUnfolderBase]: 97/966 cut-off events. [2023-08-24 04:47:19,816 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:47:19,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 966 events. 97/966 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4707 event pairs, 0 based on Foata normal form. 0/832 useless extension candidates. Maximal degree in co-relation 971. Up to 26 conditions per place. [2023-08-24 04:47:19,939 INFO L119 LiptonReduction]: Number of co-enabled transitions 586560 [2023-08-24 04:47:39,684 INFO L134 LiptonReduction]: Checked pairs total: 870402 [2023-08-24 04:47:39,684 INFO L136 LiptonReduction]: Total number of compositions: 706 [2023-08-24 04:47:39,686 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:47:39,686 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:47:39,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:47:39,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:47:39,751 INFO L124 PetriNetUnfolderBase]: 84/316 cut-off events. [2023-08-24 04:47:39,751 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2023-08-24 04:47:39,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:47:39,752 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:47:39,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:47:39,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:47:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 658467665, now seen corresponding path program 1 times [2023-08-24 04:47:39,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:47:39,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412203739] [2023-08-24 04:47:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:47:39,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:47:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:47:39,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:47:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:47:39,809 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:47:39,809 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:47:39,810 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:47:39,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 04:47:39,810 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:47:39,810 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:47:39,810 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:47:39,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-08-24 04:47:39,982 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:47:39,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,305 INFO L124 PetriNetUnfolderBase]: 105/1044 cut-off events. [2023-08-24 04:47:40,306 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:47:40,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1044 events. 105/1044 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5129 event pairs, 0 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 1064. Up to 28 conditions per place. [2023-08-24 04:47:40,339 INFO L82 GeneralOperation]: Start removeDead. Operand has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,353 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:47:40,353 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 825 places, 890 transitions, 2001 flow [2023-08-24 04:47:40,742 INFO L124 PetriNetUnfolderBase]: 105/1044 cut-off events. [2023-08-24 04:47:40,742 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:47:40,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1044 events. 105/1044 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5129 event pairs, 0 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 1064. Up to 28 conditions per place. [2023-08-24 04:47:40,849 INFO L119 LiptonReduction]: Number of co-enabled transitions 691210 [2023-08-24 04:48:04,840 INFO L134 LiptonReduction]: Checked pairs total: 1032011 [2023-08-24 04:48:04,840 INFO L136 LiptonReduction]: Total number of compositions: 766 [2023-08-24 04:48:04,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:48:04,842 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:48:04,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:48:04,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:48:04,899 INFO L124 PetriNetUnfolderBase]: 91/345 cut-off events. [2023-08-24 04:48:04,899 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2023-08-24 04:48:04,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:48:04,899 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:48:04,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:48:04,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:48:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash -935426987, now seen corresponding path program 1 times [2023-08-24 04:48:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:48:04,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353147380] [2023-08-24 04:48:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:48:04,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:48:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:04,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:48:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:04,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:48:04,962 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:48:04,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:48:04,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 04:48:04,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:48:04,963 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:48:04,963 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:48:04,963 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-08-24 04:48:05,134 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:48:05,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,516 INFO L124 PetriNetUnfolderBase]: 113/1122 cut-off events. [2023-08-24 04:48:05,516 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:48:05,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 1122 events. 113/1122 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5512 event pairs, 0 based on Foata normal form. 0/966 useless extension candidates. Maximal degree in co-relation 1158. Up to 30 conditions per place. [2023-08-24 04:48:05,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,558 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:48:05,558 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,558 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 886 places, 956 transitions, 2164 flow [2023-08-24 04:48:05,886 INFO L124 PetriNetUnfolderBase]: 113/1122 cut-off events. [2023-08-24 04:48:05,887 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:48:05,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 1122 events. 113/1122 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5512 event pairs, 0 based on Foata normal form. 0/966 useless extension candidates. Maximal degree in co-relation 1158. Up to 30 conditions per place. [2023-08-24 04:48:06,058 INFO L119 LiptonReduction]: Number of co-enabled transitions 804440 [2023-08-24 04:48:29,296 INFO L134 LiptonReduction]: Checked pairs total: 1184303 [2023-08-24 04:48:29,296 INFO L136 LiptonReduction]: Total number of compositions: 813 [2023-08-24 04:48:29,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:48:29,297 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:48:29,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:48:29,370 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:48:29,371 INFO L124 PetriNetUnfolderBase]: 98/367 cut-off events. [2023-08-24 04:48:29,371 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2023-08-24 04:48:29,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:48:29,371 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 04:48:29,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:48:29,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:48:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash -746510732, now seen corresponding path program 1 times [2023-08-24 04:48:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:48:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668695792] [2023-08-24 04:48:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:48:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:48:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:29,401 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:48:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:29,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:48:29,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:48:29,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:48:29,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 04:48:29,435 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:48:29,436 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:48:29,436 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:48:29,436 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-08-24 04:48:29,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:48:29,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,015 INFO L124 PetriNetUnfolderBase]: 121/1200 cut-off events. [2023-08-24 04:48:30,016 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 04:48:30,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 1200 events. 121/1200 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5960 event pairs, 0 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 1253. Up to 32 conditions per place. [2023-08-24 04:48:30,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,074 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:48:30,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,074 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 947 places, 1022 transitions, 2329 flow [2023-08-24 04:48:30,510 INFO L124 PetriNetUnfolderBase]: 121/1200 cut-off events. [2023-08-24 04:48:30,510 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 04:48:30,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 1200 events. 121/1200 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 5960 event pairs, 0 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 1253. Up to 32 conditions per place. [2023-08-24 04:48:30,654 INFO L119 LiptonReduction]: Number of co-enabled transitions 926250 [2023-08-24 04:48:56,162 INFO L134 LiptonReduction]: Checked pairs total: 1383913 [2023-08-24 04:48:56,163 INFO L136 LiptonReduction]: Total number of compositions: 867 [2023-08-24 04:48:56,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:48:56,164 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:48:56,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:48:56,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:48:56,215 INFO L124 PetriNetUnfolderBase]: 105/391 cut-off events. [2023-08-24 04:48:56,215 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2023-08-24 04:48:56,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:48:56,215 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] [2023-08-24 04:48:56,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:48:56,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:48:56,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1563340026, now seen corresponding path program 1 times [2023-08-24 04:48:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:48:56,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702116206] [2023-08-24 04:48:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:48:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:48:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:56,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:48:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:48:56,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:48:56,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:48:56,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:48:56,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 04:48:56,288 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:48:56,288 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:48:56,288 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:48:56,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-08-24 04:48:56,473 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:48:56,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:56,916 INFO L124 PetriNetUnfolderBase]: 129/1278 cut-off events. [2023-08-24 04:48:56,916 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 04:48:56,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 1278 events. 129/1278 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 6374 event pairs, 0 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 1349. Up to 34 conditions per place. [2023-08-24 04:48:56,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:56,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:56,979 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:48:56,979 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:56,980 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:56,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1008 places, 1088 transitions, 2496 flow [2023-08-24 04:48:57,466 INFO L124 PetriNetUnfolderBase]: 129/1278 cut-off events. [2023-08-24 04:48:57,466 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 04:48:57,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 1278 events. 129/1278 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 6374 event pairs, 0 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 1349. Up to 34 conditions per place. [2023-08-24 04:48:57,626 INFO L119 LiptonReduction]: Number of co-enabled transitions 1056640 [2023-08-24 04:49:26,540 INFO L134 LiptonReduction]: Checked pairs total: 1532347 [2023-08-24 04:49:26,540 INFO L136 LiptonReduction]: Total number of compositions: 925 [2023-08-24 04:49:26,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:49:26,544 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:49:26,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:49:26,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:49:26,601 INFO L124 PetriNetUnfolderBase]: 112/418 cut-off events. [2023-08-24 04:49:26,601 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2023-08-24 04:49:26,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:49:26,602 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] [2023-08-24 04:49:26,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:49:26,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:49:26,602 INFO L85 PathProgramCache]: Analyzing trace with hash -809813236, now seen corresponding path program 1 times [2023-08-24 04:49:26,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:49:26,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312696884] [2023-08-24 04:49:26,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:49:26,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:49:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:49:26,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:49:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:49:26,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:49:26,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:49:26,679 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:49:26,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 04:49:26,679 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:49:26,679 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:49:26,679 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:49:26,679 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-08-24 04:49:26,893 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:49:26,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,395 INFO L124 PetriNetUnfolderBase]: 137/1356 cut-off events. [2023-08-24 04:49:27,395 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 04:49:27,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1356 events. 137/1356 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6747 event pairs, 0 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 1446. Up to 36 conditions per place. [2023-08-24 04:49:27,447 INFO L82 GeneralOperation]: Start removeDead. Operand has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,463 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,463 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:49:27,464 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,464 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1069 places, 1154 transitions, 2665 flow [2023-08-24 04:49:27,912 INFO L124 PetriNetUnfolderBase]: 137/1356 cut-off events. [2023-08-24 04:49:27,912 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 04:49:27,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1561 conditions, 1356 events. 137/1356 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6747 event pairs, 0 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 1446. Up to 36 conditions per place. [2023-08-24 04:49:28,293 INFO L119 LiptonReduction]: Number of co-enabled transitions 1195610 [2023-08-24 04:49:56,795 INFO L134 LiptonReduction]: Checked pairs total: 1897904 [2023-08-24 04:49:56,796 INFO L136 LiptonReduction]: Total number of compositions: 992 [2023-08-24 04:49:56,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:49:56,797 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:49:56,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:49:56,910 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:49:56,910 INFO L124 PetriNetUnfolderBase]: 119/448 cut-off events. [2023-08-24 04:49:56,911 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2023-08-24 04:49:56,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:49:56,911 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] [2023-08-24 04:49:56,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:49:56,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:49:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash 275508508, now seen corresponding path program 1 times [2023-08-24 04:49:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:49:56,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120140563] [2023-08-24 04:49:56,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:49:56,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:49:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:49:56,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:49:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:49:56,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:49:56,989 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:49:56,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:49:56,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-24 04:49:56,989 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:49:56,990 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:49:56,990 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:49:56,990 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-08-24 04:49:57,215 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:49:57,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:57,782 INFO L124 PetriNetUnfolderBase]: 145/1434 cut-off events. [2023-08-24 04:49:57,782 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 04:49:57,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1434 events. 145/1434 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7185 event pairs, 0 based on Foata normal form. 0/1234 useless extension candidates. Maximal degree in co-relation 1544. Up to 38 conditions per place. [2023-08-24 04:49:57,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:57,866 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:57,866 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:49:57,866 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:57,866 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:57,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1130 places, 1220 transitions, 2836 flow [2023-08-24 04:49:58,423 INFO L124 PetriNetUnfolderBase]: 145/1434 cut-off events. [2023-08-24 04:49:58,423 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 04:49:58,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1660 conditions, 1434 events. 145/1434 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7185 event pairs, 0 based on Foata normal form. 0/1234 useless extension candidates. Maximal degree in co-relation 1544. Up to 38 conditions per place. [2023-08-24 04:49:58,658 INFO L119 LiptonReduction]: Number of co-enabled transitions 1343160 [2023-08-24 04:50:31,770 INFO L134 LiptonReduction]: Checked pairs total: 2129375 [2023-08-24 04:50:31,771 INFO L136 LiptonReduction]: Total number of compositions: 1034 [2023-08-24 04:50:31,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:50:31,772 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:50:31,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:50:31,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:50:31,841 INFO L124 PetriNetUnfolderBase]: 126/473 cut-off events. [2023-08-24 04:50:31,841 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2023-08-24 04:50:31,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:50:31,842 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] [2023-08-24 04:50:31,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:50:31,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:50:31,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1770135120, now seen corresponding path program 1 times [2023-08-24 04:50:31,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:50:31,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662723480] [2023-08-24 04:50:31,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:50:31,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:50:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:50:31,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:50:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:50:31,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:50:31,925 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:50:31,925 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:50:31,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-24 04:50:31,925 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:50:31,925 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:50:31,926 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:50:31,926 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-08-24 04:50:32,148 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:50:32,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:32,743 INFO L124 PetriNetUnfolderBase]: 153/1512 cut-off events. [2023-08-24 04:50:32,743 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 04:50:32,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 1512 events. 153/1512 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7581 event pairs, 0 based on Foata normal form. 0/1301 useless extension candidates. Maximal degree in co-relation 1643. Up to 40 conditions per place. [2023-08-24 04:50:32,816 INFO L82 GeneralOperation]: Start removeDead. Operand has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:32,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:32,838 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:50:32,838 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:32,839 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:32,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1191 places, 1286 transitions, 3009 flow [2023-08-24 04:50:33,432 INFO L124 PetriNetUnfolderBase]: 153/1512 cut-off events. [2023-08-24 04:50:33,432 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 04:50:33,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 1512 events. 153/1512 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7581 event pairs, 0 based on Foata normal form. 0/1301 useless extension candidates. Maximal degree in co-relation 1643. Up to 40 conditions per place. [2023-08-24 04:50:33,709 INFO L119 LiptonReduction]: Number of co-enabled transitions 1499290 [2023-08-24 04:51:06,084 INFO L134 LiptonReduction]: Checked pairs total: 2246949 [2023-08-24 04:51:06,084 INFO L136 LiptonReduction]: Total number of compositions: 1088 [2023-08-24 04:51:06,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:51:06,085 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:51:06,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:51:06,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:51:06,158 INFO L124 PetriNetUnfolderBase]: 133/498 cut-off events. [2023-08-24 04:51:06,159 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2023-08-24 04:51:06,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:51:06,159 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] [2023-08-24 04:51:06,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:51:06,159 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:51:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1305009854, now seen corresponding path program 1 times [2023-08-24 04:51:06,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:51:06,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330354914] [2023-08-24 04:51:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:51:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:51:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:51:06,199 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:51:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:51:06,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:51:06,245 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:51:06,245 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:51:06,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-24 04:51:06,245 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:51:06,246 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:51:06,246 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:51:06,246 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-08-24 04:51:06,485 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:51:06,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,283 INFO L124 PetriNetUnfolderBase]: 161/1590 cut-off events. [2023-08-24 04:51:07,283 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 04:51:07,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 1590 events. 161/1590 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8037 event pairs, 0 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1743. Up to 42 conditions per place. [2023-08-24 04:51:07,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,351 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:51:07,351 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,351 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1252 places, 1352 transitions, 3184 flow [2023-08-24 04:51:07,964 INFO L124 PetriNetUnfolderBase]: 161/1590 cut-off events. [2023-08-24 04:51:07,964 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 04:51:08,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 1590 events. 161/1590 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8037 event pairs, 0 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1743. Up to 42 conditions per place. [2023-08-24 04:51:08,433 INFO L119 LiptonReduction]: Number of co-enabled transitions 1664000 [2023-08-24 04:51:47,071 INFO L134 LiptonReduction]: Checked pairs total: 2472688 [2023-08-24 04:51:47,071 INFO L136 LiptonReduction]: Total number of compositions: 1153 [2023-08-24 04:51:47,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:51:47,074 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:51:47,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:51:47,234 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:51:47,234 INFO L124 PetriNetUnfolderBase]: 140/527 cut-off events. [2023-08-24 04:51:47,234 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2023-08-24 04:51:47,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:51:47,234 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] [2023-08-24 04:51:47,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:51:47,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:51:47,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1901634264, now seen corresponding path program 1 times [2023-08-24 04:51:47,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:51:47,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101428309] [2023-08-24 04:51:47,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:51:47,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:51:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:51:47,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:51:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:51:47,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:51:47,345 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:51:47,345 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:51:47,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-24 04:51:47,345 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:51:47,346 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:51:47,346 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:51:47,346 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-08-24 04:51:47,631 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:51:47,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:48,722 INFO L124 PetriNetUnfolderBase]: 169/1668 cut-off events. [2023-08-24 04:51:48,723 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 04:51:48,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 1668 events. 169/1668 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8384 event pairs, 0 based on Foata normal form. 0/1435 useless extension candidates. Maximal degree in co-relation 1844. Up to 44 conditions per place. [2023-08-24 04:51:48,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:48,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:48,840 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:51:48,840 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:48,840 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:48,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1313 places, 1418 transitions, 3361 flow [2023-08-24 04:51:50,012 INFO L124 PetriNetUnfolderBase]: 169/1668 cut-off events. [2023-08-24 04:51:50,012 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 04:51:50,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 1668 events. 169/1668 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8384 event pairs, 0 based on Foata normal form. 0/1435 useless extension candidates. Maximal degree in co-relation 1844. Up to 44 conditions per place. [2023-08-24 04:51:50,510 INFO L119 LiptonReduction]: Number of co-enabled transitions 1837290 [2023-08-24 04:52:27,101 INFO L134 LiptonReduction]: Checked pairs total: 2739074 [2023-08-24 04:52:27,101 INFO L136 LiptonReduction]: Total number of compositions: 1212 [2023-08-24 04:52:27,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:52:27,103 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:52:27,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:52:27,191 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:52:27,191 INFO L124 PetriNetUnfolderBase]: 147/552 cut-off events. [2023-08-24 04:52:27,191 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2023-08-24 04:52:27,192 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:52:27,192 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] [2023-08-24 04:52:27,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:52:27,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:52:27,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1858346417, now seen corresponding path program 1 times [2023-08-24 04:52:27,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:52:27,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837227763] [2023-08-24 04:52:27,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:52:27,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:52:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:52:27,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:52:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:52:27,290 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:52:27,290 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:52:27,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:52:27,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-24 04:52:27,290 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:52:27,291 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:52:27,291 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:52:27,291 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-08-24 04:52:27,546 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:52:27,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:28,396 INFO L124 PetriNetUnfolderBase]: 177/1746 cut-off events. [2023-08-24 04:52:28,396 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 04:52:28,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2066 conditions, 1746 events. 177/1746 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 8831 event pairs, 0 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 1946. Up to 46 conditions per place. [2023-08-24 04:52:28,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:28,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:28,576 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:52:28,576 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:28,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:28,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1374 places, 1484 transitions, 3540 flow [2023-08-24 04:52:29,366 INFO L124 PetriNetUnfolderBase]: 177/1746 cut-off events. [2023-08-24 04:52:29,367 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 04:52:29,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2066 conditions, 1746 events. 177/1746 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 8831 event pairs, 0 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 1946. Up to 46 conditions per place. [2023-08-24 04:52:30,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 2019160 [2023-08-24 04:53:09,099 INFO L134 LiptonReduction]: Checked pairs total: 2965305 [2023-08-24 04:53:09,099 INFO L136 LiptonReduction]: Total number of compositions: 1269 [2023-08-24 04:53:09,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:53:09,101 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:53:09,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:53:09,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:53:09,200 INFO L124 PetriNetUnfolderBase]: 154/581 cut-off events. [2023-08-24 04:53:09,200 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2023-08-24 04:53:09,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:53:09,201 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] [2023-08-24 04:53:09,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:53:09,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:53:09,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1961496874, now seen corresponding path program 1 times [2023-08-24 04:53:09,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:53:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607061269] [2023-08-24 04:53:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:53:09,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:53:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:53:09,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:53:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:53:09,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:53:09,304 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:53:09,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:53:09,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-24 04:53:09,304 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:53:09,305 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:53:09,305 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:53:09,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-08-24 04:53:09,555 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:53:09,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:10,649 INFO L124 PetriNetUnfolderBase]: 185/1824 cut-off events. [2023-08-24 04:53:10,649 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 04:53:10,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 1824 events. 185/1824 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 9235 event pairs, 0 based on Foata normal form. 0/1569 useless extension candidates. Maximal degree in co-relation 2049. Up to 48 conditions per place. [2023-08-24 04:53:10,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:10,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:10,737 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:53:10,737 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:10,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:10,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1435 places, 1550 transitions, 3721 flow [2023-08-24 04:53:11,734 INFO L124 PetriNetUnfolderBase]: 185/1824 cut-off events. [2023-08-24 04:53:11,734 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 04:53:11,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2170 conditions, 1824 events. 185/1824 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 9235 event pairs, 0 based on Foata normal form. 0/1569 useless extension candidates. Maximal degree in co-relation 2049. Up to 48 conditions per place. [2023-08-24 04:53:12,283 INFO L119 LiptonReduction]: Number of co-enabled transitions 2209610 [2023-08-24 04:53:53,632 INFO L134 LiptonReduction]: Checked pairs total: 3259428 [2023-08-24 04:53:53,632 INFO L136 LiptonReduction]: Total number of compositions: 1328 [2023-08-24 04:53:53,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:53:53,634 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:53:53,634 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:53:53,741 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:53:53,741 INFO L124 PetriNetUnfolderBase]: 161/605 cut-off events. [2023-08-24 04:53:53,741 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2023-08-24 04:53:53,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:53:53,741 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] [2023-08-24 04:53:53,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:53:53,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:53:53,742 INFO L85 PathProgramCache]: Analyzing trace with hash -618057235, now seen corresponding path program 1 times [2023-08-24 04:53:53,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:53:53,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945854101] [2023-08-24 04:53:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:53:53,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:53:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:53:53,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:53:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:53:53,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:53:53,857 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:53:53,857 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:53:53,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-24 04:53:53,857 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:53:53,858 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:53:53,858 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:53:53,858 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-08-24 04:53:54,123 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:53:54,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:55,294 INFO L124 PetriNetUnfolderBase]: 193/1902 cut-off events. [2023-08-24 04:53:55,295 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 04:53:55,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 1902 events. 193/1902 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 9697 event pairs, 0 based on Foata normal form. 0/1636 useless extension candidates. Maximal degree in co-relation 2153. Up to 50 conditions per place. [2023-08-24 04:53:55,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:55,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:55,394 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:53:55,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:55,395 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:55,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1496 places, 1616 transitions, 3904 flow [2023-08-24 04:53:56,822 INFO L124 PetriNetUnfolderBase]: 193/1902 cut-off events. [2023-08-24 04:53:56,822 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 04:53:56,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 1902 events. 193/1902 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 9697 event pairs, 0 based on Foata normal form. 0/1636 useless extension candidates. Maximal degree in co-relation 2153. Up to 50 conditions per place. [2023-08-24 04:53:57,621 INFO L119 LiptonReduction]: Number of co-enabled transitions 2408640 [2023-08-24 04:54:40,716 INFO L134 LiptonReduction]: Checked pairs total: 3583040 [2023-08-24 04:54:40,716 INFO L136 LiptonReduction]: Total number of compositions: 1376 [2023-08-24 04:54:40,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:54:40,717 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:54:40,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:54:40,835 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:54:40,836 INFO L124 PetriNetUnfolderBase]: 168/629 cut-off events. [2023-08-24 04:54:40,836 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2023-08-24 04:54:40,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:54:40,836 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] [2023-08-24 04:54:40,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:54:40,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:54:40,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1098200406, now seen corresponding path program 1 times [2023-08-24 04:54:40,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:54:40,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167642306] [2023-08-24 04:54:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:54:40,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:54:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:54:40,894 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:54:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:54:40,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:54:40,960 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:54:40,961 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:54:40,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-24 04:54:40,961 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:54:40,961 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:54:40,961 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:54:40,961 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-08-24 04:54:41,269 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:54:41,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:42,541 INFO L124 PetriNetUnfolderBase]: 201/1980 cut-off events. [2023-08-24 04:54:42,541 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 04:54:42,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 1980 events. 201/1980 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10030 event pairs, 0 based on Foata normal form. 0/1703 useless extension candidates. Maximal degree in co-relation 2258. Up to 52 conditions per place. [2023-08-24 04:54:42,624 INFO L82 GeneralOperation]: Start removeDead. Operand has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:42,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:42,648 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:54:42,648 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:42,649 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:42,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1557 places, 1682 transitions, 4089 flow [2023-08-24 04:54:43,871 INFO L124 PetriNetUnfolderBase]: 201/1980 cut-off events. [2023-08-24 04:54:43,871 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 04:54:43,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 1980 events. 201/1980 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10030 event pairs, 0 based on Foata normal form. 0/1703 useless extension candidates. Maximal degree in co-relation 2258. Up to 52 conditions per place. [2023-08-24 04:54:44,465 INFO L119 LiptonReduction]: Number of co-enabled transitions 2616250 [2023-08-24 04:55:30,528 INFO L134 LiptonReduction]: Checked pairs total: 3852792 [2023-08-24 04:55:30,529 INFO L136 LiptonReduction]: Total number of compositions: 1440 [2023-08-24 04:55:30,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:55:30,530 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:55:30,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:55:30,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:55:30,656 INFO L124 PetriNetUnfolderBase]: 175/654 cut-off events. [2023-08-24 04:55:30,656 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2023-08-24 04:55:30,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:55:30,656 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] [2023-08-24 04:55:30,656 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:55:30,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:55:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1168465692, now seen corresponding path program 1 times [2023-08-24 04:55:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:55:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689049977] [2023-08-24 04:55:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:55:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:55:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:55:30,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:55:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:55:30,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:55:30,777 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:55:30,777 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:55:30,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-24 04:55:30,777 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:55:30,777 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:55:30,778 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:55:30,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-08-24 04:55:31,110 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:55:31,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:32,464 INFO L124 PetriNetUnfolderBase]: 209/2058 cut-off events. [2023-08-24 04:55:32,464 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 04:55:32,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 2058 events. 209/2058 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10517 event pairs, 0 based on Foata normal form. 0/1770 useless extension candidates. Maximal degree in co-relation 2364. Up to 54 conditions per place. [2023-08-24 04:55:32,551 INFO L82 GeneralOperation]: Start removeDead. Operand has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:32,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:32,575 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:55:32,576 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:32,576 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:32,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1618 places, 1748 transitions, 4276 flow [2023-08-24 04:55:33,796 INFO L124 PetriNetUnfolderBase]: 209/2058 cut-off events. [2023-08-24 04:55:33,796 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 04:55:33,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 2058 events. 209/2058 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10517 event pairs, 0 based on Foata normal form. 0/1770 useless extension candidates. Maximal degree in co-relation 2364. Up to 54 conditions per place. [2023-08-24 04:55:34,692 INFO L119 LiptonReduction]: Number of co-enabled transitions 2832440 [2023-08-24 04:56:23,259 INFO L134 LiptonReduction]: Checked pairs total: 4627973 [2023-08-24 04:56:23,259 INFO L136 LiptonReduction]: Total number of compositions: 1502 [2023-08-24 04:56:23,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-24 04:56:23,261 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;@5e825099, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 04:56:23,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-24 04:56:23,394 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 04:56:23,394 INFO L124 PetriNetUnfolderBase]: 182/687 cut-off events. [2023-08-24 04:56:23,394 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2023-08-24 04:56:23,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 04:56:23,395 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] [2023-08-24 04:56:23,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-24 04:56:23,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 04:56:23,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1341760593, now seen corresponding path program 1 times [2023-08-24 04:56:23,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 04:56:23,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012308545] [2023-08-24 04:56:23,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 04:56:23,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 04:56:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:23,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 04:56:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 04:56:23,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 04:56:23,528 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 04:56:23,528 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-24 04:56:23,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-24 04:56:23,528 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-24 04:56:23,528 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-24 04:56:23,528 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 04:56:23,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-08-24 04:56:23,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 04:56:23,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:25,364 INFO L124 PetriNetUnfolderBase]: 217/2136 cut-off events. [2023-08-24 04:56:25,364 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 04:56:25,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2596 conditions, 2136 events. 217/2136 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10930 event pairs, 0 based on Foata normal form. 0/1837 useless extension candidates. Maximal degree in co-relation 2471. Up to 56 conditions per place. [2023-08-24 04:56:25,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:25,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:25,489 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 04:56:25,489 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:25,489 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:25,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1679 places, 1814 transitions, 4465 flow [2023-08-24 04:56:26,777 INFO L124 PetriNetUnfolderBase]: 217/2136 cut-off events. [2023-08-24 04:56:26,777 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2023-08-24 04:56:26,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2596 conditions, 2136 events. 217/2136 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10930 event pairs, 0 based on Foata normal form. 0/1837 useless extension candidates. Maximal degree in co-relation 2471. Up to 56 conditions per place. [2023-08-24 04:56:27,422 INFO L119 LiptonReduction]: Number of co-enabled transitions 3057210 Received shutdown request... [2023-08-24 04:57:01,990 WARN L266 SmtUtils]: Removed 4 from assertion stack [2023-08-24 04:57:01,991 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-24 04:57:01,992 INFO L158 Benchmark]: Toolchain (without parser) took 709516.28ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.6GB). Free memory was 331.8MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. [2023-08-24 04:57:01,992 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 333.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 04:57:01,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.26ms. Allocated memory is still 356.5MB. Free memory was 331.5MB in the beginning and 310.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 04:57:01,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.49ms. Allocated memory is still 356.5MB. Free memory was 310.9MB in the beginning and 308.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 04:57:01,993 INFO L158 Benchmark]: Boogie Preprocessor took 50.32ms. Allocated memory is still 356.5MB. Free memory was 308.4MB in the beginning and 306.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 04:57:01,993 INFO L158 Benchmark]: RCFGBuilder took 614.49ms. Allocated memory is still 356.5MB. Free memory was 306.5MB in the beginning and 326.3MB in the end (delta: -19.7MB). Peak memory consumption was 35.6MB. Max. memory is 16.0GB. [2023-08-24 04:57:01,993 INFO L158 Benchmark]: TraceAbstraction took 708287.05ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.6GB). Free memory was 325.1MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. [2023-08-24 04:57:01,994 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 356.5MB. Free memory is still 333.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 492.26ms. Allocated memory is still 356.5MB. Free memory was 331.5MB in the beginning and 310.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 66.49ms. Allocated memory is still 356.5MB. Free memory was 310.9MB in the beginning and 308.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.32ms. Allocated memory is still 356.5MB. Free memory was 308.4MB in the beginning and 306.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 614.49ms. Allocated memory is still 356.5MB. Free memory was 306.5MB in the beginning and 326.3MB in the end (delta: -19.7MB). Peak memory consumption was 35.6MB. Max. memory is 16.0GB. * TraceAbstraction took 708287.05ms. Allocated memory was 356.5MB in the beginning and 4.9GB in the end (delta: 4.6GB). Free memory was 325.1MB in the beginning and 2.9GB in the end (delta: -2.6GB). Peak memory consumption was 2.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 686]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [686] - GenericResultAtLocation [Line: 687]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [687] - GenericResultAtLocation [Line: 688]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [688] - GenericResultAtLocation [Line: 689]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [689] - GenericResultAtLocation [Line: 690]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [690] - GenericResultAtLocation [Line: 701]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [701] - GenericResultAtLocation [Line: 702]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [702] - GenericResultAtLocation [Line: 703]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [703] - GenericResultAtLocation [Line: 704]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [704] - GenericResultAtLocation [Line: 708]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [708] - GenericResultAtLocation [Line: 709]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [709] - GenericResultAtLocation [Line: 722]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [722] - GenericResultAtLocation [Line: 726]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [726] - GenericResultAtLocation [Line: 727]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [727] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 93 PlacesBefore, 23 PlacesAfterwards, 98 TransitionsBefore, 27 TransitionsAfterwards, 1690 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 84 TotalNumberOfCompositions, 2354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1558, independent: 1424, independent conditional: 0, independent unconditional: 1424, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 917, independent: 873, independent conditional: 0, independent unconditional: 873, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1558, independent: 551, independent conditional: 0, independent unconditional: 551, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 917, unknown conditional: 0, unknown unconditional: 917] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 154 PlacesBefore, 43 PlacesAfterwards, 164 TransitionsBefore, 52 TransitionsAfterwards, 11960 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 100 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 1 ChoiceCompositions, 142 TotalNumberOfCompositions, 17804 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10109, independent: 9883, independent conditional: 0, independent unconditional: 9883, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6338, independent: 6251, independent conditional: 0, independent unconditional: 6251, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10109, independent: 3632, independent conditional: 0, independent unconditional: 3632, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 6338, unknown conditional: 0, unknown unconditional: 6338] , Statistics on independence cache: Total cache size (in pairs): 237, Positive cache size: 206, Positive conditional cache size: 0, Positive unconditional cache size: 206, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8s, 215 PlacesBefore, 61 PlacesAfterwards, 230 TransitionsBefore, 75 TransitionsAfterwards, 30810 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 35 ConcurrentYvCompositions, 1 ChoiceCompositions, 198 TotalNumberOfCompositions, 46397 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25713, independent: 25365, independent conditional: 0, independent unconditional: 25365, dependent: 348, dependent conditional: 0, dependent unconditional: 348, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16662, independent: 16545, independent conditional: 0, independent unconditional: 16545, dependent: 117, dependent conditional: 0, dependent unconditional: 117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25713, independent: 8820, independent conditional: 0, independent unconditional: 8820, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 16662, unknown conditional: 0, unknown unconditional: 16662] , Statistics on independence cache: Total cache size (in pairs): 658, Positive cache size: 610, Positive conditional cache size: 0, Positive unconditional cache size: 610, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 276 PlacesBefore, 75 PlacesAfterwards, 296 TransitionsBefore, 94 TransitionsAfterwards, 58240 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 42 ConcurrentYvCompositions, 1 ChoiceCompositions, 251 TotalNumberOfCompositions, 90591 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48599, independent: 48071, independent conditional: 0, independent unconditional: 48071, dependent: 528, dependent conditional: 0, dependent unconditional: 528, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 30947, independent: 30786, independent conditional: 0, independent unconditional: 30786, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 48599, independent: 17285, independent conditional: 0, independent unconditional: 17285, dependent: 367, dependent conditional: 0, dependent unconditional: 367, unknown: 30947, unknown conditional: 0, unknown unconditional: 30947] , Statistics on independence cache: Total cache size (in pairs): 1541, Positive cache size: 1480, Positive conditional cache size: 0, Positive unconditional cache size: 1480, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7s, 337 PlacesBefore, 94 PlacesAfterwards, 362 TransitionsBefore, 118 TransitionsAfterwards, 94250 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 240 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 52 ConcurrentYvCompositions, 1 ChoiceCompositions, 311 TotalNumberOfCompositions, 149970 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77856, independent: 77193, independent conditional: 0, independent unconditional: 77193, dependent: 663, dependent conditional: 0, dependent unconditional: 663, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 50271, independent: 50057, independent conditional: 0, independent unconditional: 50057, dependent: 214, dependent conditional: 0, dependent unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 77856, independent: 27136, independent conditional: 0, independent unconditional: 27136, dependent: 449, dependent conditional: 0, dependent unconditional: 449, unknown: 50271, unknown conditional: 0, unknown unconditional: 50271] , Statistics on independence cache: Total cache size (in pairs): 2308, Positive cache size: 2230, Positive conditional cache size: 0, Positive unconditional cache size: 2230, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.2s, 398 PlacesBefore, 109 PlacesAfterwards, 428 TransitionsBefore, 138 TransitionsAfterwards, 138840 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 280 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 64 ConcurrentYvCompositions, 1 ChoiceCompositions, 363 TotalNumberOfCompositions, 204167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108439, independent: 107779, independent conditional: 0, independent unconditional: 107779, dependent: 660, dependent conditional: 0, dependent unconditional: 660, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 72012, independent: 71794, independent conditional: 0, independent unconditional: 71794, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 108439, independent: 35985, independent conditional: 0, independent unconditional: 35985, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 72012, unknown conditional: 0, unknown unconditional: 72012] , Statistics on independence cache: Total cache size (in pairs): 2042, Positive cache size: 1952, Positive conditional cache size: 0, Positive unconditional cache size: 1952, Negative cache size: 90, Negative conditional cache size: 0, Negative unconditional cache size: 90, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7s, 459 PlacesBefore, 126 PlacesAfterwards, 494 TransitionsBefore, 160 TransitionsAfterwards, 192010 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 329 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 72 ConcurrentYvCompositions, 1 ChoiceCompositions, 420 TotalNumberOfCompositions, 275673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 141730, independent: 140976, independent conditional: 0, independent unconditional: 140976, dependent: 754, dependent conditional: 0, dependent unconditional: 754, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 98102, independent: 97854, independent conditional: 0, independent unconditional: 97854, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 141730, independent: 43122, independent conditional: 0, independent unconditional: 43122, dependent: 506, dependent conditional: 0, dependent unconditional: 506, unknown: 98102, unknown conditional: 0, unknown unconditional: 98102] , Statistics on independence cache: Total cache size (in pairs): 1472, Positive cache size: 1366, Positive conditional cache size: 0, Positive unconditional cache size: 1366, Negative cache size: 106, Negative conditional cache size: 0, Negative unconditional cache size: 106, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.6s, 520 PlacesBefore, 145 PlacesAfterwards, 560 TransitionsBefore, 184 TransitionsAfterwards, 253760 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 376 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 86 ConcurrentYvCompositions, 1 ChoiceCompositions, 481 TotalNumberOfCompositions, 372709 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195956, independent: 195088, independent conditional: 0, independent unconditional: 195088, dependent: 868, dependent conditional: 0, dependent unconditional: 868, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 131845, independent: 131537, independent conditional: 0, independent unconditional: 131537, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 195956, independent: 63551, independent conditional: 0, independent unconditional: 63551, dependent: 560, dependent conditional: 0, dependent unconditional: 560, unknown: 131845, unknown conditional: 0, unknown unconditional: 131845] , Statistics on independence cache: Total cache size (in pairs): 2410, Positive cache size: 2287, Positive conditional cache size: 0, Positive unconditional cache size: 2287, Negative cache size: 123, Negative conditional cache size: 0, Negative unconditional cache size: 123, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2s, 581 PlacesBefore, 164 PlacesAfterwards, 626 TransitionsBefore, 208 TransitionsAfterwards, 324090 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 424 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 95 ConcurrentYvCompositions, 1 ChoiceCompositions, 538 TotalNumberOfCompositions, 489183 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246546, independent: 245545, independent conditional: 0, independent unconditional: 245545, dependent: 1001, dependent conditional: 0, dependent unconditional: 1001, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 169164, independent: 168805, independent conditional: 0, independent unconditional: 168805, dependent: 359, dependent conditional: 0, dependent unconditional: 359, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 246546, independent: 76740, independent conditional: 0, independent unconditional: 76740, dependent: 642, dependent conditional: 0, dependent unconditional: 642, unknown: 169164, unknown conditional: 0, unknown unconditional: 169164] , Statistics on independence cache: Total cache size (in pairs): 4646, Positive cache size: 4506, Positive conditional cache size: 0, Positive unconditional cache size: 4506, Negative cache size: 140, Negative conditional cache size: 0, Negative unconditional cache size: 140, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1s, 642 PlacesBefore, 179 PlacesAfterwards, 692 TransitionsBefore, 228 TransitionsAfterwards, 403000 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 467 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 105 ConcurrentYvCompositions, 1 ChoiceCompositions, 591 TotalNumberOfCompositions, 592134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 321099, independent: 320013, independent conditional: 0, independent unconditional: 320013, dependent: 1086, dependent conditional: 0, dependent unconditional: 1086, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 214713, independent: 214317, independent conditional: 0, independent unconditional: 214317, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 321099, independent: 105696, independent conditional: 0, independent unconditional: 105696, dependent: 690, dependent conditional: 0, dependent unconditional: 690, unknown: 214713, unknown conditional: 0, unknown unconditional: 214713] , Statistics on independence cache: Total cache size (in pairs): 8723, Positive cache size: 8552, Positive conditional cache size: 0, Positive unconditional cache size: 8552, Negative cache size: 171, Negative conditional cache size: 0, Negative unconditional cache size: 171, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7s, 703 PlacesBefore, 192 PlacesAfterwards, 758 TransitionsBefore, 246 TransitionsAfterwards, 490490 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 517 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 1 ChoiceCompositions, 643 TotalNumberOfCompositions, 715948 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 360300, independent: 359108, independent conditional: 0, independent unconditional: 359108, dependent: 1192, dependent conditional: 0, dependent unconditional: 1192, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 250874, independent: 250459, independent conditional: 0, independent unconditional: 250459, dependent: 415, dependent conditional: 0, dependent unconditional: 415, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 360300, independent: 108649, independent conditional: 0, independent unconditional: 108649, dependent: 777, dependent conditional: 0, dependent unconditional: 777, unknown: 250874, unknown conditional: 0, unknown unconditional: 250874] , Statistics on independence cache: Total cache size (in pairs): 3639, Positive cache size: 3476, Positive conditional cache size: 0, Positive unconditional cache size: 3476, Negative cache size: 163, Negative conditional cache size: 0, Negative unconditional cache size: 163, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1s, 764 PlacesBefore, 212 PlacesAfterwards, 824 TransitionsBefore, 271 TransitionsAfterwards, 586560 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 566 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 121 ConcurrentYvCompositions, 1 ChoiceCompositions, 706 TotalNumberOfCompositions, 870402 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 451430, independent: 450119, independent conditional: 0, independent unconditional: 450119, dependent: 1311, dependent conditional: 0, dependent unconditional: 1311, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 307157, independent: 306692, independent conditional: 0, independent unconditional: 306692, dependent: 465, dependent conditional: 0, dependent unconditional: 465, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 451430, independent: 143427, independent conditional: 0, independent unconditional: 143427, dependent: 846, dependent conditional: 0, dependent unconditional: 846, unknown: 307157, unknown conditional: 0, unknown unconditional: 307157] , Statistics on independence cache: Total cache size (in pairs): 8697, Positive cache size: 8516, Positive conditional cache size: 0, Positive unconditional cache size: 8516, Negative cache size: 181, Negative conditional cache size: 0, Negative unconditional cache size: 181, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.5s, 825 PlacesBefore, 232 PlacesAfterwards, 890 TransitionsBefore, 296 TransitionsAfterwards, 691210 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 608 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 139 ConcurrentYvCompositions, 1 ChoiceCompositions, 766 TotalNumberOfCompositions, 1032011 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 522791, independent: 521365, independent conditional: 0, independent unconditional: 521365, dependent: 1426, dependent conditional: 0, dependent unconditional: 1426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 359229, independent: 358723, independent conditional: 0, independent unconditional: 358723, dependent: 506, dependent conditional: 0, dependent unconditional: 506, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 522791, independent: 162642, independent conditional: 0, independent unconditional: 162642, dependent: 920, dependent conditional: 0, dependent unconditional: 920, unknown: 359229, unknown conditional: 0, unknown unconditional: 359229] , Statistics on independence cache: Total cache size (in pairs): 9850, Positive cache size: 9651, Positive conditional cache size: 0, Positive unconditional cache size: 9651, Negative cache size: 199, Negative conditional cache size: 0, Negative unconditional cache size: 199, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.7s, 886 PlacesBefore, 245 PlacesAfterwards, 956 TransitionsBefore, 314 TransitionsAfterwards, 804440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 647 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 147 ConcurrentYvCompositions, 1 ChoiceCompositions, 813 TotalNumberOfCompositions, 1184303 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 583315, independent: 581784, independent conditional: 0, independent unconditional: 581784, dependent: 1531, dependent conditional: 0, dependent unconditional: 1531, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 413736, independent: 413189, independent conditional: 0, independent unconditional: 413189, dependent: 547, dependent conditional: 0, dependent unconditional: 547, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 583315, independent: 168595, independent conditional: 0, independent unconditional: 168595, dependent: 984, dependent conditional: 0, dependent unconditional: 984, unknown: 413736, unknown conditional: 0, unknown unconditional: 413736] , Statistics on independence cache: Total cache size (in pairs): 8506, Positive cache size: 8296, Positive conditional cache size: 0, Positive unconditional cache size: 8296, Negative cache size: 210, Negative conditional cache size: 0, Negative unconditional cache size: 210, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1s, 947 PlacesBefore, 260 PlacesAfterwards, 1022 TransitionsBefore, 334 TransitionsAfterwards, 926250 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 694 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 154 ConcurrentYvCompositions, 1 ChoiceCompositions, 867 TotalNumberOfCompositions, 1383913 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 682026, independent: 680363, independent conditional: 0, independent unconditional: 680363, dependent: 1663, dependent conditional: 0, dependent unconditional: 1663, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 482073, independent: 481450, independent conditional: 0, independent unconditional: 481450, dependent: 623, dependent conditional: 0, dependent unconditional: 623, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 682026, independent: 198913, independent conditional: 0, independent unconditional: 198913, dependent: 1040, dependent conditional: 0, dependent unconditional: 1040, unknown: 482073, unknown conditional: 0, unknown unconditional: 482073] , Statistics on independence cache: Total cache size (in pairs): 11433, Positive cache size: 11211, Positive conditional cache size: 0, Positive unconditional cache size: 11211, Negative cache size: 222, Negative conditional cache size: 0, Negative unconditional cache size: 222, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.6s, 1008 PlacesBefore, 278 PlacesAfterwards, 1088 TransitionsBefore, 357 TransitionsAfterwards, 1056640 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 745 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 1 ChoiceCompositions, 925 TotalNumberOfCompositions, 1532347 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 769147, independent: 767429, independent conditional: 0, independent unconditional: 767429, dependent: 1718, dependent conditional: 0, dependent unconditional: 1718, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 547716, independent: 547052, independent conditional: 0, independent unconditional: 547052, dependent: 664, dependent conditional: 0, dependent unconditional: 664, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 769147, independent: 220377, independent conditional: 0, independent unconditional: 220377, dependent: 1054, dependent conditional: 0, dependent unconditional: 1054, unknown: 547716, unknown conditional: 0, unknown unconditional: 547716] , Statistics on independence cache: Total cache size (in pairs): 13076, Positive cache size: 12837, Positive conditional cache size: 0, Positive unconditional cache size: 12837, Negative cache size: 239, Negative conditional cache size: 0, Negative unconditional cache size: 239, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3s, 1069 PlacesBefore, 299 PlacesAfterwards, 1154 TransitionsBefore, 383 TransitionsAfterwards, 1195610 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 790 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 183 ConcurrentYvCompositions, 1 ChoiceCompositions, 992 TotalNumberOfCompositions, 1897904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 900226, independent: 898028, independent conditional: 0, independent unconditional: 898028, dependent: 2198, dependent conditional: 0, dependent unconditional: 2198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 623189, independent: 622544, independent conditional: 0, independent unconditional: 622544, dependent: 645, dependent conditional: 0, dependent unconditional: 645, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 900226, independent: 275484, independent conditional: 0, independent unconditional: 275484, dependent: 1553, dependent conditional: 0, dependent unconditional: 1553, unknown: 623189, unknown conditional: 0, unknown unconditional: 623189] , Statistics on independence cache: Total cache size (in pairs): 16821, Positive cache size: 16563, Positive conditional cache size: 0, Positive unconditional cache size: 16563, Negative cache size: 258, Negative conditional cache size: 0, Negative unconditional cache size: 258, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.9s, 1130 PlacesBefore, 315 PlacesAfterwards, 1220 TransitionsBefore, 404 TransitionsAfterwards, 1343160 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 827 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 188 ConcurrentYvCompositions, 1 ChoiceCompositions, 1034 TotalNumberOfCompositions, 2129375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1008835, independent: 1006498, independent conditional: 0, independent unconditional: 1006498, dependent: 2337, dependent conditional: 0, dependent unconditional: 2337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 699215, independent: 698521, independent conditional: 0, independent unconditional: 698521, dependent: 694, dependent conditional: 0, dependent unconditional: 694, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1008835, independent: 307977, independent conditional: 0, independent unconditional: 307977, dependent: 1643, dependent conditional: 0, dependent unconditional: 1643, unknown: 699215, unknown conditional: 0, unknown unconditional: 699215] , Statistics on independence cache: Total cache size (in pairs): 21066, Positive cache size: 20793, Positive conditional cache size: 0, Positive unconditional cache size: 20793, Negative cache size: 273, Negative conditional cache size: 0, Negative unconditional cache size: 273, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.2s, 1191 PlacesBefore, 331 PlacesAfterwards, 1286 TransitionsBefore, 425 TransitionsAfterwards, 1499290 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 873 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 196 ConcurrentYvCompositions, 1 ChoiceCompositions, 1088 TotalNumberOfCompositions, 2246949 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1102082, independent: 1099978, independent conditional: 0, independent unconditional: 1099978, dependent: 2104, dependent conditional: 0, dependent unconditional: 2104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 773686, independent: 772869, independent conditional: 0, independent unconditional: 772869, dependent: 817, dependent conditional: 0, dependent unconditional: 817, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1102082, independent: 327109, independent conditional: 0, independent unconditional: 327109, dependent: 1287, dependent conditional: 0, dependent unconditional: 1287, unknown: 773686, unknown conditional: 0, unknown unconditional: 773686] , Statistics on independence cache: Total cache size (in pairs): 13662, Positive cache size: 13375, Positive conditional cache size: 0, Positive unconditional cache size: 13375, Negative cache size: 287, Negative conditional cache size: 0, Negative unconditional cache size: 287, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.7s, 1252 PlacesBefore, 351 PlacesAfterwards, 1352 TransitionsBefore, 450 TransitionsAfterwards, 1664000 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 931 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 203 ConcurrentYvCompositions, 1 ChoiceCompositions, 1153 TotalNumberOfCompositions, 2472688 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1269514, independent: 1267324, independent conditional: 0, independent unconditional: 1267324, dependent: 2190, dependent conditional: 0, dependent unconditional: 2190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 876828, independent: 876038, independent conditional: 0, independent unconditional: 876038, dependent: 790, dependent conditional: 0, dependent unconditional: 790, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1269514, independent: 391286, independent conditional: 0, independent unconditional: 391286, dependent: 1400, dependent conditional: 0, dependent unconditional: 1400, unknown: 876828, unknown conditional: 0, unknown unconditional: 876828] , Statistics on independence cache: Total cache size (in pairs): 32369, Positive cache size: 32064, Positive conditional cache size: 0, Positive unconditional cache size: 32064, Negative cache size: 305, Negative conditional cache size: 0, Negative unconditional cache size: 305, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.3s, 1313 PlacesBefore, 367 PlacesAfterwards, 1418 TransitionsBefore, 471 TransitionsAfterwards, 1837290 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 975 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 218 ConcurrentYvCompositions, 1 ChoiceCompositions, 1212 TotalNumberOfCompositions, 2739074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1355657, independent: 1353359, independent conditional: 0, independent unconditional: 1353359, dependent: 2298, dependent conditional: 0, dependent unconditional: 2298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 953690, independent: 952797, independent conditional: 0, independent unconditional: 952797, dependent: 893, dependent conditional: 0, dependent unconditional: 893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1355657, independent: 400562, independent conditional: 0, independent unconditional: 400562, dependent: 1405, dependent conditional: 0, dependent unconditional: 1405, unknown: 953690, unknown conditional: 0, unknown unconditional: 953690] , Statistics on independence cache: Total cache size (in pairs): 21075, Positive cache size: 20757, Positive conditional cache size: 0, Positive unconditional cache size: 20757, Negative cache size: 318, Negative conditional cache size: 0, Negative unconditional cache size: 318, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5s, 1374 PlacesBefore, 387 PlacesAfterwards, 1484 TransitionsBefore, 496 TransitionsAfterwards, 2019160 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 1011 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 239 ConcurrentYvCompositions, 1 ChoiceCompositions, 1269 TotalNumberOfCompositions, 2965305 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1490659, independent: 1488294, independent conditional: 0, independent unconditional: 1488294, dependent: 2365, dependent conditional: 0, dependent unconditional: 2365, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1047137, independent: 1046282, independent conditional: 0, independent unconditional: 1046282, dependent: 855, dependent conditional: 0, dependent unconditional: 855, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1490659, independent: 442012, independent conditional: 0, independent unconditional: 442012, dependent: 1510, dependent conditional: 0, dependent unconditional: 1510, unknown: 1047137, unknown conditional: 0, unknown unconditional: 1047137] , Statistics on independence cache: Total cache size (in pairs): 23860, Positive cache size: 23524, Positive conditional cache size: 0, Positive unconditional cache size: 23524, Negative cache size: 336, Negative conditional cache size: 0, Negative unconditional cache size: 336, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.9s, 1435 PlacesBefore, 402 PlacesAfterwards, 1550 TransitionsBefore, 516 TransitionsAfterwards, 2209610 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 1066 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 243 ConcurrentYvCompositions, 1 ChoiceCompositions, 1328 TotalNumberOfCompositions, 3259428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1652392, independent: 1649888, independent conditional: 0, independent unconditional: 1649888, dependent: 2504, dependent conditional: 0, dependent unconditional: 2504, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1145457, independent: 1144537, independent conditional: 0, independent unconditional: 1144537, dependent: 920, dependent conditional: 0, dependent unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1652392, independent: 505351, independent conditional: 0, independent unconditional: 505351, dependent: 1584, dependent conditional: 0, dependent unconditional: 1584, unknown: 1145457, unknown conditional: 0, unknown unconditional: 1145457] , Statistics on independence cache: Total cache size (in pairs): 24686, Positive cache size: 24337, Positive conditional cache size: 0, Positive unconditional cache size: 24337, Negative cache size: 349, Negative conditional cache size: 0, Negative unconditional cache size: 349, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.3s, 1496 PlacesBefore, 417 PlacesAfterwards, 1616 TransitionsBefore, 536 TransitionsAfterwards, 2408640 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 1108 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 249 ConcurrentYvCompositions, 1 ChoiceCompositions, 1376 TotalNumberOfCompositions, 3583040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1766568, independent: 1763942, independent conditional: 0, independent unconditional: 1763942, dependent: 2626, dependent conditional: 0, dependent unconditional: 2626, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1247237, independent: 1246316, independent conditional: 0, independent unconditional: 1246316, dependent: 921, dependent conditional: 0, dependent unconditional: 921, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1766568, independent: 517626, independent conditional: 0, independent unconditional: 517626, dependent: 1705, dependent conditional: 0, dependent unconditional: 1705, unknown: 1247237, unknown conditional: 0, unknown unconditional: 1247237] , Statistics on independence cache: Total cache size (in pairs): 27593, Positive cache size: 27230, Positive conditional cache size: 0, Positive unconditional cache size: 27230, Negative cache size: 363, Negative conditional cache size: 0, Negative unconditional cache size: 363, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.9s, 1557 PlacesBefore, 433 PlacesAfterwards, 1682 TransitionsBefore, 557 TransitionsAfterwards, 2616250 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 1162 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 259 ConcurrentYvCompositions, 1 ChoiceCompositions, 1440 TotalNumberOfCompositions, 3852792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1904841, independent: 1902128, independent conditional: 0, independent unconditional: 1902128, dependent: 2713, dependent conditional: 0, dependent unconditional: 2713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1340612, independent: 1339759, independent conditional: 0, independent unconditional: 1339759, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1904841, independent: 562369, independent conditional: 0, independent unconditional: 562369, dependent: 1860, dependent conditional: 0, dependent unconditional: 1860, unknown: 1340612, unknown conditional: 0, unknown unconditional: 1340612] , Statistics on independence cache: Total cache size (in pairs): 13960, Positive cache size: 13584, Positive conditional cache size: 0, Positive unconditional cache size: 13584, Negative cache size: 376, Negative conditional cache size: 0, Negative unconditional cache size: 376, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.7s, 1618 PlacesBefore, 457 PlacesAfterwards, 1748 TransitionsBefore, 586 TransitionsAfterwards, 2832440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 1215 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 268 ConcurrentYvCompositions, 1 ChoiceCompositions, 1502 TotalNumberOfCompositions, 4627973 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2140766, independent: 2137327, independent conditional: 0, independent unconditional: 2137327, dependent: 3439, dependent conditional: 0, dependent unconditional: 3439, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1463827, independent: 1462747, independent conditional: 0, independent unconditional: 1462747, dependent: 1080, dependent conditional: 0, dependent unconditional: 1080, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2140766, independent: 674580, independent conditional: 0, independent unconditional: 674580, dependent: 2359, dependent conditional: 0, dependent unconditional: 2359, unknown: 1463827, unknown conditional: 0, unknown unconditional: 1463827] , Statistics on independence cache: Total cache size (in pairs): 37524, Positive cache size: 37126, Positive conditional cache size: 0, Positive unconditional cache size: 37126, Negative cache size: 398, Negative conditional cache size: 0, Negative unconditional cache size: 398, 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 1679 places, 1814 transitions, 4465 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1679 places, 1814 transitions, 4465 flow and 1362720 co-enabled transitions pairs.,while SimplifyDDAWithTimeout was simplifying term of DAG size 12 for 5ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown