/usr/bin/java -Xmx8000000000 -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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 08:45:59,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 08:45:59,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 08:45:59,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-13 08:45:59,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 08:45:59,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 08:45:59,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 08:45:59,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 08:45:59,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 08:45:59,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 08:45:59,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 08:45:59,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 08:45:59,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 08:45:59,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 08:45:59,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 08:45:59,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 08:45:59,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 08:45:59,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 08:45:59,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 08:45:59,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 08:45:59,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 08:45:59,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 08:45:59,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 08:45:59,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 08:45:59,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 08:45:59,520 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 08:45:59,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 08:45:59,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 08:45:59,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 08:45:59,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 08:45:59,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 08:45:59,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 08:45:59,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:45:59,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 08:45:59,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 08:45:59,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 08:45:59,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 08:45:59,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 08:45:59,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 08:45:59,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 08:45:59,787 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 08:45:59,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-13 08:46:00,777 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 08:46:00,992 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 08:46:00,993 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2022-12-13 08:46:01,018 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f5701d2/8954372086024eef802acc480cc4cc63/FLAGfa00ecbc6 [2022-12-13 08:46:01,037 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5f5701d2/8954372086024eef802acc480cc4cc63 [2022-12-13 08:46:01,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 08:46:01,039 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 08:46:01,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 08:46:01,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 08:46:01,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 08:46:01,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fcc5a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01, skipping insertion in model container [2022-12-13 08:46:01,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 08:46:01,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 08:46:01,404 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-13 08:46:01,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:46:01,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 08:46:01,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i[39757,39770] [2022-12-13 08:46:01,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 08:46:01,500 INFO L208 MainTranslator]: Completed translation [2022-12-13 08:46:01,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01 WrapperNode [2022-12-13 08:46:01,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 08:46:01,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 08:46:01,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 08:46:01,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 08:46:01,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,536 INFO L138 Inliner]: procedures = 243, calls = 50, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 81 [2022-12-13 08:46:01,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 08:46:01,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 08:46:01,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 08:46:01,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 08:46:01,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,554 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 08:46:01,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 08:46:01,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 08:46:01,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 08:46:01,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (1/1) ... [2022-12-13 08:46:01,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 08:46:01,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:01,587 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) [2022-12-13 08:46:01,589 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 [2022-12-13 08:46:01,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 08:46:01,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 08:46:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 08:46:01,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 08:46:01,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 08:46:01,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 08:46:01,621 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 08:46:01,747 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 08:46:01,749 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 08:46:01,982 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 08:46:01,987 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 08:46:01,987 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 08:46:01,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:01 BoogieIcfgContainer [2022-12-13 08:46:01,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 08:46:01,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 08:46:01,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 08:46:01,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 08:46:01,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:46:01" (1/3) ... [2022-12-13 08:46:01,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed13599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:01, skipping insertion in model container [2022-12-13 08:46:01,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:46:01" (2/3) ... [2022-12-13 08:46:01,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed13599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:46:01, skipping insertion in model container [2022-12-13 08:46:01,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:46:01" (3/3) ... [2022-12-13 08:46:01,996 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2022-12-13 08:46:02,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 08:46:02,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 08:46:02,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 08:46:02,082 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 08:46:02,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 131 transitions, 278 flow [2022-12-13 08:46:02,181 INFO L130 PetriNetUnfolder]: 10/129 cut-off events. [2022-12-13 08:46:02,182 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 08:46:02,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 129 events. 10/129 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 3 conditions per place. [2022-12-13 08:46:02,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 131 transitions, 278 flow [2022-12-13 08:46:02,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 118 transitions, 248 flow [2022-12-13 08:46:02,192 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:02,208 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-13 08:46:02,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 248 flow [2022-12-13 08:46:02,253 INFO L130 PetriNetUnfolder]: 8/118 cut-off events. [2022-12-13 08:46:02,253 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 08:46:02,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 118 events. 8/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-12-13 08:46:02,257 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 118 transitions, 248 flow [2022-12-13 08:46:02,257 INFO L226 LiptonReduction]: Number of co-enabled transitions 1922 [2022-12-13 08:46:08,538 INFO L241 LiptonReduction]: Total number of compositions: 93 [2022-12-13 08:46:08,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 08:46:08,553 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=REPEATED_LIPTON_PN, 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;@5091aa2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 08:46:08,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 08:46:08,570 INFO L130 PetriNetUnfolder]: 6/30 cut-off events. [2022-12-13 08:46:08,570 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 08:46:08,570 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:08,571 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:08,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:08,576 INFO L85 PathProgramCache]: Analyzing trace with hash 228985984, now seen corresponding path program 1 times [2022-12-13 08:46:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:08,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776388948] [2022-12-13 08:46:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:08,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:08,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:08,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776388948] [2022-12-13 08:46:08,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776388948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:08,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:46:08,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 08:46:08,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468203010] [2022-12-13 08:46:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:08,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:46:08,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:08,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:46:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 08:46:08,863 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2022-12-13 08:46:08,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:08,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:08,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2022-12-13 08:46:08,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:08,983 INFO L130 PetriNetUnfolder]: 189/410 cut-off events. [2022-12-13 08:46:08,983 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-12-13 08:46:08,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 410 events. 189/410 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1851 event pairs, 72 based on Foata normal form. 24/368 useless extension candidates. Maximal degree in co-relation 672. Up to 194 conditions per place. [2022-12-13 08:46:08,992 INFO L137 encePairwiseOnDemand]: 26/31 looper letters, 32 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2022-12-13 08:46:08,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:46:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 08:46:09,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2022-12-13 08:46:09,002 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2022-12-13 08:46:09,005 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-13 08:46:09,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,012 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:09,013 INFO L89 Accepts]: Start accepts. Operand has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,015 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:09,016 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:09,016 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,021 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,021 INFO L226 LiptonReduction]: Number of co-enabled transitions 288 [2022-12-13 08:46:09,037 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:09,038 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 26 [2022-12-13 08:46:09,038 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 42 transitions, 167 flow [2022-12-13 08:46:09,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:09,039 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:09,039 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:09,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 08:46:09,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:09,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1986141756, now seen corresponding path program 1 times [2022-12-13 08:46:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:09,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048589364] [2022-12-13 08:46:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:09,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:09,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:09,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048589364] [2022-12-13 08:46:09,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048589364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:09,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:46:09,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 08:46:09,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656961843] [2022-12-13 08:46:09,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:09,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:46:09,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:09,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:46:09,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 08:46:09,118 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-13 08:46:09,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 42 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:09,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:09,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-13 08:46:09,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:09,213 INFO L130 PetriNetUnfolder]: 297/644 cut-off events. [2022-12-13 08:46:09,213 INFO L131 PetriNetUnfolder]: For 145/213 co-relation queries the response was YES. [2022-12-13 08:46:09,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 644 events. 297/644 cut-off events. For 145/213 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3170 event pairs, 72 based on Foata normal form. 0/576 useless extension candidates. Maximal degree in co-relation 1452. Up to 299 conditions per place. [2022-12-13 08:46:09,217 INFO L137 encePairwiseOnDemand]: 26/29 looper letters, 52 selfloop transitions, 4 changer transitions 0/64 dead transitions. [2022-12-13 08:46:09,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:46:09,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 08:46:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-12-13 08:46:09,219 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298 [2022-12-13 08:46:09,220 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 4 predicate places. [2022-12-13 08:46:09,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,227 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:09,227 INFO L89 Accepts]: Start accepts. Operand has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,228 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:09,228 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:09,228 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,229 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,229 INFO L226 LiptonReduction]: Number of co-enabled transitions 480 [2022-12-13 08:46:09,246 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:09,247 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 20 [2022-12-13 08:46:09,247 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 64 transitions, 370 flow [2022-12-13 08:46:09,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:09,247 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:09,247 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:09,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 08:46:09,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:09,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash 920389757, now seen corresponding path program 1 times [2022-12-13 08:46:09,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:09,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736468223] [2022-12-13 08:46:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:09,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:09,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:09,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736468223] [2022-12-13 08:46:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736468223] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:09,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498988086] [2022-12-13 08:46:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:09,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:09,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:09,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:09,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 08:46:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:09,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 08:46:09,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:09,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 08:46:09,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498988086] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:09,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:09,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 08:46:09,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848294375] [2022-12-13 08:46:09,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:09,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 08:46:09,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:09,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 08:46:09,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:46:09,602 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-13 08:46:09,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 64 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:09,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:09,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-13 08:46:09,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:09,779 INFO L130 PetriNetUnfolder]: 543/1168 cut-off events. [2022-12-13 08:46:09,779 INFO L131 PetriNetUnfolder]: For 612/740 co-relation queries the response was YES. [2022-12-13 08:46:09,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3711 conditions, 1168 events. 543/1168 cut-off events. For 612/740 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5732 event pairs, 42 based on Foata normal form. 16/1060 useless extension candidates. Maximal degree in co-relation 3526. Up to 671 conditions per place. [2022-12-13 08:46:09,786 INFO L137 encePairwiseOnDemand]: 25/29 looper letters, 104 selfloop transitions, 12 changer transitions 0/124 dead transitions. [2022-12-13 08:46:09,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 08:46:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 08:46:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2022-12-13 08:46:09,788 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6954022988505747 [2022-12-13 08:46:09,788 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2022-12-13 08:46:09,788 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,803 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:09,803 INFO L89 Accepts]: Start accepts. Operand has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,805 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:09,805 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:09,806 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,810 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,810 INFO L226 LiptonReduction]: Number of co-enabled transitions 896 [2022-12-13 08:46:09,821 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:09,822 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 19 [2022-12-13 08:46:09,822 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 124 transitions, 971 flow [2022-12-13 08:46:09,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:09,822 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:09,822 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:09,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:10,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:10,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:10,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:10,028 INFO L85 PathProgramCache]: Analyzing trace with hash -581213251, now seen corresponding path program 2 times [2022-12-13 08:46:10,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:10,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823809657] [2022-12-13 08:46:10,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:10,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 08:46:10,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:10,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823809657] [2022-12-13 08:46:10,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823809657] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:10,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849226170] [2022-12-13 08:46:10,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 08:46:10,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:10,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:10,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:10,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 08:46:10,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 08:46:10,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:10,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 08:46:10,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 08:46:10,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 08:46:10,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849226170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:10,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 08:46:10,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-13 08:46:10,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759866937] [2022-12-13 08:46:10,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:10,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 08:46:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:10,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 08:46:10,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:46:10,315 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 29 [2022-12-13 08:46:10,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 124 transitions, 971 flow. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:10,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:10,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 29 [2022-12-13 08:46:10,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:10,646 INFO L130 PetriNetUnfolder]: 1822/3041 cut-off events. [2022-12-13 08:46:10,646 INFO L131 PetriNetUnfolder]: For 4401/4421 co-relation queries the response was YES. [2022-12-13 08:46:10,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12297 conditions, 3041 events. 1822/3041 cut-off events. For 4401/4421 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 13964 event pairs, 92 based on Foata normal form. 48/2859 useless extension candidates. Maximal degree in co-relation 12030. Up to 1803 conditions per place. [2022-12-13 08:46:10,666 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 249 selfloop transitions, 44 changer transitions 6/301 dead transitions. [2022-12-13 08:46:10,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 301 transitions, 2910 flow [2022-12-13 08:46:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 08:46:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 104 transitions. [2022-12-13 08:46:10,670 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5123152709359606 [2022-12-13 08:46:10,671 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-12-13 08:46:10,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 301 transitions, 2910 flow [2022-12-13 08:46:10,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 295 transitions, 2850 flow [2022-12-13 08:46:10,706 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:10,707 INFO L89 Accepts]: Start accepts. Operand has 47 places, 295 transitions, 2850 flow [2022-12-13 08:46:10,709 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:10,709 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:10,710 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 295 transitions, 2850 flow [2022-12-13 08:46:10,718 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 295 transitions, 2850 flow [2022-12-13 08:46:10,718 INFO L226 LiptonReduction]: Number of co-enabled transitions 352 [2022-12-13 08:46:10,733 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:10,735 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 29 [2022-12-13 08:46:10,735 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 295 transitions, 2850 flow [2022-12-13 08:46:10,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:10,735 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:10,735 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:10,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:10,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-13 08:46:10,963 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:10,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:10,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1724919971, now seen corresponding path program 3 times [2022-12-13 08:46:10,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:10,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956511172] [2022-12-13 08:46:10,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:10,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:11,035 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 08:46:11,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:11,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956511172] [2022-12-13 08:46:11,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956511172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:11,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 08:46:11,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 08:46:11,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751340905] [2022-12-13 08:46:11,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:11,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 08:46:11,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:11,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 08:46:11,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 08:46:11,036 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 29 [2022-12-13 08:46:11,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 295 transitions, 2850 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:11,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:11,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 29 [2022-12-13 08:46:11,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:11,158 INFO L130 PetriNetUnfolder]: 637/1252 cut-off events. [2022-12-13 08:46:11,158 INFO L131 PetriNetUnfolder]: For 4634/4634 co-relation queries the response was YES. [2022-12-13 08:46:11,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6074 conditions, 1252 events. 637/1252 cut-off events. For 4634/4634 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5375 event pairs, 9 based on Foata normal form. 268/1454 useless extension candidates. Maximal degree in co-relation 5746. Up to 739 conditions per place. [2022-12-13 08:46:11,165 INFO L137 encePairwiseOnDemand]: 21/29 looper letters, 139 selfloop transitions, 76 changer transitions 2/230 dead transitions. [2022-12-13 08:46:11,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 230 transitions, 2688 flow [2022-12-13 08:46:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 08:46:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 08:46:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-13 08:46:11,166 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2022-12-13 08:46:11,167 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2022-12-13 08:46:11,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 230 transitions, 2688 flow [2022-12-13 08:46:11,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 228 transitions, 2664 flow [2022-12-13 08:46:11,177 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:11,178 INFO L89 Accepts]: Start accepts. Operand has 47 places, 228 transitions, 2664 flow [2022-12-13 08:46:11,180 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:11,180 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:11,180 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 228 transitions, 2664 flow [2022-12-13 08:46:11,182 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 228 transitions, 2664 flow [2022-12-13 08:46:11,182 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 08:46:11,184 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:11,185 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-13 08:46:11,185 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 228 transitions, 2664 flow [2022-12-13 08:46:11,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:11,185 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:11,185 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:11,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 08:46:11,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:11,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1054777895, now seen corresponding path program 4 times [2022-12-13 08:46:11,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:11,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565659698] [2022-12-13 08:46:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:11,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:11,243 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 08:46:11,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:11,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565659698] [2022-12-13 08:46:11,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565659698] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:11,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293834246] [2022-12-13 08:46:11,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 08:46:11,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:11,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:11,245 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:11,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 08:46:11,322 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 08:46:11,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:11,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 08:46:11,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 08:46:11,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 08:46:11,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293834246] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:11,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:11,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 08:46:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508272964] [2022-12-13 08:46:11,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:11,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 08:46:11,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:11,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 08:46:11,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 08:46:11,388 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-13 08:46:11,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 228 transitions, 2664 flow. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:11,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:11,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-13 08:46:11,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:11,696 INFO L130 PetriNetUnfolder]: 1424/2859 cut-off events. [2022-12-13 08:46:11,696 INFO L131 PetriNetUnfolder]: For 12569/12569 co-relation queries the response was YES. [2022-12-13 08:46:11,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15649 conditions, 2859 events. 1424/2859 cut-off events. For 12569/12569 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 15101 event pairs, 2 based on Foata normal form. 96/2837 useless extension candidates. Maximal degree in co-relation 15275. Up to 1830 conditions per place. [2022-12-13 08:46:11,717 INFO L137 encePairwiseOnDemand]: 25/29 looper letters, 510 selfloop transitions, 35 changer transitions 0/560 dead transitions. [2022-12-13 08:46:11,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 08:46:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 08:46:11,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2022-12-13 08:46:11,719 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6781609195402298 [2022-12-13 08:46:11,721 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 20 predicate places. [2022-12-13 08:46:11,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,775 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:11,775 INFO L89 Accepts]: Start accepts. Operand has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,782 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:11,782 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:11,782 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,790 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,790 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 08:46:11,797 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:11,799 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 24 [2022-12-13 08:46:11,799 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 560 transitions, 7777 flow [2022-12-13 08:46:11,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:11,799 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:11,799 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:11,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:12,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:12,005 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:12,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:12,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1762765992, now seen corresponding path program 5 times [2022-12-13 08:46:12,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:12,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172434125] [2022-12-13 08:46:12,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:12,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 08:46:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:12,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172434125] [2022-12-13 08:46:12,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172434125] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:12,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541062826] [2022-12-13 08:46:12,205 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 08:46:12,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:12,207 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:12,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 08:46:12,316 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-12-13 08:46:12,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:12,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 08:46:12,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:12,377 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 08:46:12,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 08:46:12,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541062826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 08:46:12,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 08:46:12,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2022-12-13 08:46:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347475323] [2022-12-13 08:46:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 08:46:12,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 08:46:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:12,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 08:46:12,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 08:46:12,378 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 29 [2022-12-13 08:46:12,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 560 transitions, 7777 flow. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:12,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:12,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 29 [2022-12-13 08:46:12,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:12,822 INFO L130 PetriNetUnfolder]: 1223/2480 cut-off events. [2022-12-13 08:46:12,822 INFO L131 PetriNetUnfolder]: For 11355/11355 co-relation queries the response was YES. [2022-12-13 08:46:12,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16029 conditions, 2480 events. 1223/2480 cut-off events. For 11355/11355 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12353 event pairs, 2 based on Foata normal form. 22/2392 useless extension candidates. Maximal degree in co-relation 15583. Up to 1591 conditions per place. [2022-12-13 08:46:12,834 INFO L137 encePairwiseOnDemand]: 19/29 looper letters, 530 selfloop transitions, 76 changer transitions 15/623 dead transitions. [2022-12-13 08:46:12,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 623 transitions, 9873 flow [2022-12-13 08:46:12,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 08:46:12,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 08:46:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 75 transitions. [2022-12-13 08:46:12,836 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3694581280788177 [2022-12-13 08:46:12,837 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 26 predicate places. [2022-12-13 08:46:12,837 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 623 transitions, 9873 flow [2022-12-13 08:46:12,849 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 608 transitions, 9633 flow [2022-12-13 08:46:12,860 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 08:46:12,860 INFO L89 Accepts]: Start accepts. Operand has 58 places, 608 transitions, 9633 flow [2022-12-13 08:46:12,867 INFO L95 Accepts]: Finished accepts. [2022-12-13 08:46:12,867 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:12,868 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 608 transitions, 9633 flow [2022-12-13 08:46:12,876 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 608 transitions, 9633 flow [2022-12-13 08:46:12,876 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 08:46:12,882 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:12,883 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-13 08:46:12,884 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 608 transitions, 9633 flow [2022-12-13 08:46:12,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:12,884 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 08:46:12,884 INFO L214 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 08:46:12,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:13,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:13,089 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-13 08:46:13,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 08:46:13,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1872347318, now seen corresponding path program 6 times [2022-12-13 08:46:13,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 08:46:13,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302601605] [2022-12-13 08:46:13,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 08:46:13,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 08:46:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 08:46:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 08:46:13,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302601605] [2022-12-13 08:46:13,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302601605] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 08:46:13,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188604782] [2022-12-13 08:46:13,480 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 08:46:13,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:13,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 08:46:13,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 08:46:13,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 08:46:13,658 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-12-13 08:46:13,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 08:46:13,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-13 08:46:13,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 08:46:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 65 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:13,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 08:46:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 08:46:17,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188604782] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 08:46:17,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 08:46:17,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 29 [2022-12-13 08:46:17,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150898943] [2022-12-13 08:46:17,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 08:46:17,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-13 08:46:17,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 08:46:17,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-13 08:46:17,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=815, Unknown=0, NotChecked=0, Total=930 [2022-12-13 08:46:17,637 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2022-12-13 08:46:17,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 608 transitions, 9633 flow. Second operand has 31 states, 31 states have (on average 11.193548387096774) internal successors, (347), 31 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:17,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 08:46:17,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2022-12-13 08:46:17,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 08:46:18,672 INFO L130 PetriNetUnfolder]: 1072/2265 cut-off events. [2022-12-13 08:46:18,672 INFO L131 PetriNetUnfolder]: For 14766/14766 co-relation queries the response was YES. [2022-12-13 08:46:18,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16047 conditions, 2265 events. 1072/2265 cut-off events. For 14766/14766 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11581 event pairs, 4 based on Foata normal form. 28/2225 useless extension candidates. Maximal degree in co-relation 15599. Up to 1412 conditions per place. [2022-12-13 08:46:18,678 INFO L137 encePairwiseOnDemand]: 22/29 looper letters, 0 selfloop transitions, 0 changer transitions 657/657 dead transitions. [2022-12-13 08:46:18,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 657 transitions, 11702 flow [2022-12-13 08:46:18,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 08:46:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 08:46:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 181 transitions. [2022-12-13 08:46:18,679 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5201149425287356 [2022-12-13 08:46:18,679 INFO L295 CegarLoopForPetriNet]: 32 programPoint places, 36 predicate places. [2022-12-13 08:46:18,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 657 transitions, 11702 flow [2022-12-13 08:46:18,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-13 08:46:18,689 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 08:46:18,689 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 08:46:18,689 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 08:46:18,689 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 08:46:18,690 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 08:46:18,690 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1 [2022-12-13 08:46:18,691 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 08:46:18,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.193548387096774) internal successors, (347), 31 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 08:46:18,692 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 08:46:18,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 08:46:18,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-13 08:46:18,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 08:46:18,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 08:46:18,900 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1] [2022-12-13 08:46:18,902 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 08:46:18,903 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 08:46:18,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:46:18 BasicIcfg [2022-12-13 08:46:18,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 08:46:18,905 INFO L158 Benchmark]: Toolchain (without parser) took 17865.73ms. Allocated memory was 185.6MB in the beginning and 402.7MB in the end (delta: 217.1MB). Free memory was 160.8MB in the beginning and 256.7MB in the end (delta: -95.9MB). Peak memory consumption was 122.6MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,905 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory was 161.5MB in the beginning and 161.4MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 08:46:18,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.79ms. Allocated memory is still 185.6MB. Free memory was 160.6MB in the beginning and 133.9MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.35ms. Allocated memory is still 185.6MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,906 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 185.6MB. Free memory was 131.8MB in the beginning and 130.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,906 INFO L158 Benchmark]: RCFGBuilder took 431.45ms. Allocated memory is still 185.6MB. Free memory was 129.7MB in the beginning and 112.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,906 INFO L158 Benchmark]: TraceAbstraction took 16912.35ms. Allocated memory was 185.6MB in the beginning and 402.7MB in the end (delta: 217.1MB). Free memory was 111.9MB in the beginning and 256.7MB in the end (delta: -144.8MB). Peak memory consumption was 73.3MB. Max. memory is 8.0GB. [2022-12-13 08:46:18,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 185.6MB. Free memory was 161.5MB in the beginning and 161.4MB in the end (delta: 83.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.79ms. Allocated memory is still 185.6MB. Free memory was 160.6MB in the beginning and 133.9MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.35ms. Allocated memory is still 185.6MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 185.6MB. Free memory was 131.8MB in the beginning and 130.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 431.45ms. Allocated memory is still 185.6MB. Free memory was 129.7MB in the beginning and 112.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 16912.35ms. Allocated memory was 185.6MB in the beginning and 402.7MB in the end (delta: 217.1MB). Free memory was 111.9MB in the beginning and 256.7MB in the end (delta: -144.8MB). Peak memory consumption was 73.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 117 PlacesBefore, 32 PlacesAfterwards, 118 TransitionsBefore, 31 TransitionsAfterwards, 1922 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 53 TrivialYvCompositions, 32 ConcurrentYvCompositions, 2 ChoiceCompositions, 93 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 1373, independent unconditional: 0, dependent: 69, dependent conditional: 69, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1442, independent: 1373, independent conditional: 0, independent unconditional: 1373, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1167, independent: 1139, independent conditional: 0, independent unconditional: 1139, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1167, independent: 1115, independent conditional: 0, independent unconditional: 1115, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1442, independent: 234, independent conditional: 0, independent unconditional: 234, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 1167, unknown conditional: 0, unknown unconditional: 1167] , Statistics on independence cache: Total cache size (in pairs): 1782, Positive cache size: 1754, Positive conditional cache size: 0, Positive unconditional cache size: 1754, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 34 PlacesBefore, 34 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 151, independent: 135, independent conditional: 135, independent unconditional: 0, dependent: 16, dependent conditional: 16, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 151, independent: 135, independent conditional: 51, independent unconditional: 84, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 151, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 151, independent: 135, independent conditional: 0, independent unconditional: 135, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 87, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 87, independent: 72, independent conditional: 0, independent unconditional: 72, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 151, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 87, unknown conditional: 0, unknown unconditional: 87] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 51, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 193, independent: 172, independent conditional: 172, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 193, independent: 172, independent conditional: 91, independent unconditional: 81, dependent: 21, dependent conditional: 13, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 193, independent: 172, independent conditional: 26, independent unconditional: 146, dependent: 21, dependent conditional: 10, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 193, independent: 172, independent conditional: 26, independent unconditional: 146, dependent: 21, dependent conditional: 10, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, independent: 18, independent conditional: 5, independent unconditional: 13, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 4, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 9, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 193, independent: 154, independent conditional: 21, independent unconditional: 133, dependent: 16, dependent conditional: 6, dependent unconditional: 10, unknown: 23, unknown conditional: 9, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 92, Positive conditional cache size: 5, Positive unconditional cache size: 87, Negative cache size: 18, Negative conditional cache size: 4, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 68, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 41 PlacesBefore, 41 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 896 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 271, independent: 231, independent conditional: 231, independent unconditional: 0, dependent: 40, dependent conditional: 40, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 271, independent: 231, independent conditional: 145, independent unconditional: 86, dependent: 40, dependent conditional: 29, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 309, independent: 231, independent conditional: 25, independent unconditional: 206, dependent: 78, dependent conditional: 31, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 309, independent: 231, independent conditional: 25, independent unconditional: 206, dependent: 78, dependent conditional: 31, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 309, independent: 229, independent conditional: 23, independent unconditional: 206, dependent: 76, dependent conditional: 29, dependent unconditional: 47, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 94, Positive conditional cache size: 7, Positive unconditional cache size: 87, Negative cache size: 20, Negative conditional cache size: 6, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 156, Maximal queried relation: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 295 TransitionsBefore, 295 TransitionsAfterwards, 352 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 76, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 28, dependent conditional: 28, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 76, independent: 48, independent conditional: 48, independent unconditional: 0, dependent: 28, dependent conditional: 28, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 88, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 40, dependent conditional: 16, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 88, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 40, dependent conditional: 16, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 88, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 38, dependent conditional: 14, dependent unconditional: 24, unknown: 6, unknown conditional: 2, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 7, Positive unconditional cache size: 91, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 72, Maximal queried relation: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 47 PlacesBefore, 47 PlacesAfterwards, 228 TransitionsBefore, 228 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 7, Positive unconditional cache size: 91, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 52 PlacesBefore, 52 PlacesAfterwards, 560 TransitionsBefore, 560 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 7, Positive unconditional cache size: 91, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 58 PlacesBefore, 58 PlacesAfterwards, 608 TransitionsBefore, 608 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 7, Positive unconditional cache size: 91, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 98, Positive conditional cache size: 7, Positive unconditional cache size: 91, Negative cache size: 22, Negative conditional cache size: 8, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.8s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 431 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2079 IncrementalHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 2 mSDtfsCounter, 2079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 294 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9633occurred in iteration=7, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 479 NumberOfCodeBlocks, 475 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 577 ConstructedInterpolants, 45 QuantifiedInterpolants, 4611 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1476 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 317/557 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 08:46:18,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...