/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 23:48:57,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 23:48:57,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 23:48:57,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 23:48:57,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 23:48:57,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 23:48:57,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 23:48:57,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 23:48:57,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 23:48:57,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 23:48:57,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 23:48:57,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 23:48:57,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 23:48:57,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 23:48:57,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 23:48:57,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 23:48:57,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 23:48:57,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 23:48:57,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 23:48:57,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 23:48:57,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 23:48:57,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 23:48:57,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 23:48:57,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 23:48:57,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 23:48:57,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 23:48:57,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 23:48:57,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 23:48:57,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 23:48:57,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 23:48:57,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 23:48:57,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 23:48:57,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 23:48:57,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 23:48:57,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 23:48:57,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 23:48:57,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 23:48:57,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 23:48:57,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 23:48:57,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 23:48:57,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 23:48:57,674 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 [2022-12-05 23:48:57,699 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 23:48:57,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 23:48:57,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 23:48:57,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 23:48:57,700 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 23:48:57,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 23:48:57,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 23:48:57,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 23:48:57,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 23:48:57,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 23:48:57,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 23:48:57,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 23:48:57,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 23:48:57,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 23:48:57,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:48:57,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 23:48:57,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 23:48:57,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 23:48:57,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 23:48:57,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 23:48:57,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 23:48:57,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 23:48:57,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 23:48:57,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 23:48:57,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 23:48:57,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 23:48:57,981 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 23:48:57,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-12-05 23:48:58,959 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 23:48:59,117 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 23:48:59,118 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-12-05 23:48:59,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae408f2d/008b7a74f24245d0b2cd509b437a8356/FLAG193711c8b [2022-12-05 23:48:59,151 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ae408f2d/008b7a74f24245d0b2cd509b437a8356 [2022-12-05 23:48:59,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 23:48:59,153 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 23:48:59,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 23:48:59,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 23:48:59,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 23:48:59,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364ec22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59, skipping insertion in model container [2022-12-05 23:48:59,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 23:48:59,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 23:48:59,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-12-05 23:48:59,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:48:59,340 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 23:48:59,357 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-12-05 23:48:59,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 23:48:59,370 INFO L208 MainTranslator]: Completed translation [2022-12-05 23:48:59,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59 WrapperNode [2022-12-05 23:48:59,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 23:48:59,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 23:48:59,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 23:48:59,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 23:48:59,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,417 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 174 [2022-12-05 23:48:59,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 23:48:59,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 23:48:59,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 23:48:59,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 23:48:59,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,446 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 23:48:59,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 23:48:59,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 23:48:59,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 23:48:59,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (1/1) ... [2022-12-05 23:48:59,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 23:48:59,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:48:59,483 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) [2022-12-05 23:48:59,543 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 [2022-12-05 23:48:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 23:48:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 23:48:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 23:48:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 23:48:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 23:48:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 23:48:59,569 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 23:48:59,670 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 23:48:59,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 23:48:59,938 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 23:48:59,967 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 23:48:59,967 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-05 23:48:59,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:48:59 BoogieIcfgContainer [2022-12-05 23:48:59,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 23:48:59,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 23:48:59,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 23:48:59,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 23:48:59,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 11:48:59" (1/3) ... [2022-12-05 23:48:59,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4222c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:48:59, skipping insertion in model container [2022-12-05 23:48:59,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:48:59" (2/3) ... [2022-12-05 23:48:59,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4222c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 11:48:59, skipping insertion in model container [2022-12-05 23:48:59,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:48:59" (3/3) ... [2022-12-05 23:48:59,974 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-12-05 23:48:59,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 23:48:59,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 23:48:59,992 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 23:49:00,073 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 23:49:00,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 183 places, 195 transitions, 406 flow [2022-12-05 23:49:00,190 INFO L130 PetriNetUnfolder]: 19/193 cut-off events. [2022-12-05 23:49:00,190 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 23:49:00,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 19/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 136. Up to 3 conditions per place. [2022-12-05 23:49:00,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 195 transitions, 406 flow [2022-12-05 23:49:00,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 185 transitions, 382 flow [2022-12-05 23:49:00,204 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:00,218 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 185 transitions, 382 flow [2022-12-05 23:49:00,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 185 transitions, 382 flow [2022-12-05 23:49:00,271 INFO L130 PetriNetUnfolder]: 19/185 cut-off events. [2022-12-05 23:49:00,271 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 23:49:00,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 185 events. 19/185 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 136. Up to 3 conditions per place. [2022-12-05 23:49:00,275 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 185 transitions, 382 flow [2022-12-05 23:49:00,276 INFO L188 LiptonReduction]: Number of co-enabled transitions 3332 [2022-12-05 23:49:04,912 INFO L203 LiptonReduction]: Total number of compositions: 160 [2022-12-05 23:49:04,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 23:49:04,927 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;@64c55e14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 23:49:04,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-05 23:49:04,931 INFO L130 PetriNetUnfolder]: 6/24 cut-off events. [2022-12-05 23:49:04,931 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 23:49:04,931 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:04,932 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:04,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:04,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1037354139, now seen corresponding path program 1 times [2022-12-05 23:49:04,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:04,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314555309] [2022-12-05 23:49:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:04,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:05,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 23:49:05,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:05,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314555309] [2022-12-05 23:49:05,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314555309] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:49:05,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:49:05,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 23:49:05,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539895814] [2022-12-05 23:49:05,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:49:05,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 23:49:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 23:49:05,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 23:49:05,293 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 25 [2022-12-05 23:49:05,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-05 23:49:05,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:05,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 25 [2022-12-05 23:49:05,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:05,368 INFO L130 PetriNetUnfolder]: 91/158 cut-off events. [2022-12-05 23:49:05,368 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-05 23:49:05,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 158 events. 91/158 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 403 event pairs, 51 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 278. Up to 151 conditions per place. [2022-12-05 23:49:05,371 INFO L137 encePairwiseOnDemand]: 20/25 looper letters, 22 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2022-12-05 23:49:05,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 118 flow [2022-12-05 23:49:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:49:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:49:05,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2022-12-05 23:49:05,379 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.41333333333333333 [2022-12-05 23:49:05,381 INFO L175 Difference]: Start difference. First operand has 26 places, 25 transitions, 62 flow. Second operand 3 states and 31 transitions. [2022-12-05 23:49:05,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 118 flow [2022-12-05 23:49:05,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-05 23:49:05,384 INFO L231 Difference]: Finished difference. Result has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,386 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=25, PETRI_TRANSITIONS=27} [2022-12-05 23:49:05,388 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2022-12-05 23:49:05,388 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:05,389 INFO L89 Accepts]: Start accepts. Operand has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,390 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:05,390 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:05,391 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,395 INFO L130 PetriNetUnfolder]: 6/27 cut-off events. [2022-12-05 23:49:05,395 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 23:49:05,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 27 events. 6/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 26. Up to 6 conditions per place. [2022-12-05 23:49:05,395 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,395 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-05 23:49:05,418 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:49:05,420 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-05 23:49:05,420 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 27 transitions, 76 flow [2022-12-05 23:49:05,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-12-05 23:49:05,420 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:05,420 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:05,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 23:49:05,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:05,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1383105849, now seen corresponding path program 1 times [2022-12-05 23:49:05,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:05,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35377884] [2022-12-05 23:49:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:05,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 23:49:05,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:05,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35377884] [2022-12-05 23:49:05,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35377884] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 23:49:05,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119540317] [2022-12-05 23:49:05,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:05,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 23:49:05,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:49:05,608 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) [2022-12-05 23:49:05,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-05 23:49:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:05,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-05 23:49:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 23:49:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 23:49:05,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 23:49:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-05 23:49:05,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119540317] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 23:49:05,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 23:49:05,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-12-05 23:49:05,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170879040] [2022-12-05 23:49:05,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 23:49:05,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 23:49:05,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:05,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 23:49:05,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2022-12-05 23:49:05,782 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 25 [2022-12-05 23:49:05,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 27 transitions, 76 flow. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2022-12-05 23:49:05,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:05,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 25 [2022-12-05 23:49:05,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:05,855 INFO L130 PetriNetUnfolder]: 91/164 cut-off events. [2022-12-05 23:49:05,855 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:49:05,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 164 events. 91/164 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 400 event pairs, 51 based on Foata normal form. 3/126 useless extension candidates. Maximal degree in co-relation 318. Up to 151 conditions per place. [2022-12-05 23:49:05,856 INFO L137 encePairwiseOnDemand]: 20/25 looper letters, 22 selfloop transitions, 10 changer transitions 0/33 dead transitions. [2022-12-05 23:49:05,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 33 transitions, 164 flow [2022-12-05 23:49:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 23:49:05,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 23:49:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2022-12-05 23:49:05,857 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.29333333333333333 [2022-12-05 23:49:05,857 INFO L175 Difference]: Start difference. First operand has 25 places, 27 transitions, 76 flow. Second operand 6 states and 44 transitions. [2022-12-05 23:49:05,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 33 transitions, 164 flow [2022-12-05 23:49:05,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 23:49:05,858 INFO L231 Difference]: Finished difference. Result has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,858 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=32, PETRI_TRANSITIONS=33} [2022-12-05 23:49:05,859 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2022-12-05 23:49:05,859 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:05,859 INFO L89 Accepts]: Start accepts. Operand has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,860 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:05,860 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:05,860 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,864 INFO L130 PetriNetUnfolder]: 6/33 cut-off events. [2022-12-05 23:49:05,864 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:49:05,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 33 events. 6/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 27. Up to 12 conditions per place. [2022-12-05 23:49:05,864 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,864 INFO L188 LiptonReduction]: Number of co-enabled transitions 126 [2022-12-05 23:49:05,865 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:49:05,866 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 7 [2022-12-05 23:49:05,866 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 33 transitions, 138 flow [2022-12-05 23:49:05,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2022-12-05 23:49:05,866 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:05,866 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:05,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-05 23:49:06,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 23:49:06,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:06,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash 263123979, now seen corresponding path program 2 times [2022-12-05 23:49:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:06,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936429640] [2022-12-05 23:49:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-05 23:49:06,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:06,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936429640] [2022-12-05 23:49:06,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936429640] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 23:49:06,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174362249] [2022-12-05 23:49:06,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-05 23:49:06,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 23:49:06,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:49:06,273 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) [2022-12-05 23:49:06,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-05 23:49:06,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-05 23:49:06,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-05 23:49:06,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-05 23:49:06,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 23:49:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-05 23:49:06,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-05 23:49:06,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174362249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:49:06,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-05 23:49:06,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2022-12-05 23:49:06,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131930215] [2022-12-05 23:49:06,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:49:06,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 23:49:06,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 23:49:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-12-05 23:49:06,387 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-05 23:49:06,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 33 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-05 23:49:06,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:06,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-05 23:49:06,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:06,479 INFO L130 PetriNetUnfolder]: 195/342 cut-off events. [2022-12-05 23:49:06,479 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 23:49:06,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 342 events. 195/342 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1135 event pairs, 60 based on Foata normal form. 4/263 useless extension candidates. Maximal degree in co-relation 679. Up to 166 conditions per place. [2022-12-05 23:49:06,484 INFO L137 encePairwiseOnDemand]: 19/25 looper letters, 53 selfloop transitions, 5 changer transitions 2/60 dead transitions. [2022-12-05 23:49:06,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 60 transitions, 318 flow [2022-12-05 23:49:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-05 23:49:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-05 23:49:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2022-12-05 23:49:06,487 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.424 [2022-12-05 23:49:06,488 INFO L175 Difference]: Start difference. First operand has 32 places, 33 transitions, 138 flow. Second operand 5 states and 53 transitions. [2022-12-05 23:49:06,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 60 transitions, 318 flow [2022-12-05 23:49:06,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 60 transitions, 302 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-05 23:49:06,491 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 146 flow [2022-12-05 23:49:06,491 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=146, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2022-12-05 23:49:06,492 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2022-12-05 23:49:06,492 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:06,492 INFO L89 Accepts]: Start accepts. Operand has 37 places, 35 transitions, 146 flow [2022-12-05 23:49:06,494 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:06,494 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:06,494 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 35 transitions, 146 flow [2022-12-05 23:49:06,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 146 flow [2022-12-05 23:49:06,499 INFO L130 PetriNetUnfolder]: 7/52 cut-off events. [2022-12-05 23:49:06,499 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 23:49:06,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 52 events. 7/52 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 72. Up to 6 conditions per place. [2022-12-05 23:49:06,499 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 35 transitions, 146 flow [2022-12-05 23:49:06,499 INFO L188 LiptonReduction]: Number of co-enabled transitions 148 [2022-12-05 23:49:06,576 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-05 23:49:06,577 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 85 [2022-12-05 23:49:06,577 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 147 flow [2022-12-05 23:49:06,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-12-05 23:49:06,577 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:06,578 INFO L213 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:06,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-05 23:49:06,784 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,SelfDestructingSolverStorable2 [2022-12-05 23:49:06,785 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -926459100, now seen corresponding path program 1 times [2022-12-05 23:49:06,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:06,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178994466] [2022-12-05 23:49:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:06,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:06,917 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-05 23:49:06,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:06,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178994466] [2022-12-05 23:49:06,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178994466] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-05 23:49:06,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261809928] [2022-12-05 23:49:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:06,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 23:49:06,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 23:49:06,919 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) [2022-12-05 23:49:06,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-05 23:49:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:07,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-05 23:49:07,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-05 23:49:07,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-05 23:49:07,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-05 23:49:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-05 23:49:07,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261809928] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-05 23:49:07,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-05 23:49:07,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2022-12-05 23:49:07,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419203327] [2022-12-05 23:49:07,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-05 23:49:07,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-05 23:49:07,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:07,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-05 23:49:07,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2022-12-05 23:49:07,135 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 26 [2022-12-05 23:49:07,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 147 flow. Second operand has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2022-12-05 23:49:07,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:07,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 26 [2022-12-05 23:49:07,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:07,258 INFO L130 PetriNetUnfolder]: 173/320 cut-off events. [2022-12-05 23:49:07,259 INFO L131 PetriNetUnfolder]: For 100/100 co-relation queries the response was YES. [2022-12-05 23:49:07,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 763 conditions, 320 events. 173/320 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1046 event pairs, 109 based on Foata normal form. 1/272 useless extension candidates. Maximal degree in co-relation 698. Up to 297 conditions per place. [2022-12-05 23:49:07,260 INFO L137 encePairwiseOnDemand]: 21/26 looper letters, 24 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2022-12-05 23:49:07,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 37 transitions, 231 flow [2022-12-05 23:49:07,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 23:49:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 23:49:07,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 44 transitions. [2022-12-05 23:49:07,261 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.24175824175824176 [2022-12-05 23:49:07,261 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 147 flow. Second operand 7 states and 44 transitions. [2022-12-05 23:49:07,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 37 transitions, 231 flow [2022-12-05 23:49:07,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 222 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-05 23:49:07,263 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,263 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=184, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2022-12-05 23:49:07,263 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 16 predicate places. [2022-12-05 23:49:07,263 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:07,263 INFO L89 Accepts]: Start accepts. Operand has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,264 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:07,264 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:07,264 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,269 INFO L130 PetriNetUnfolder]: 7/54 cut-off events. [2022-12-05 23:49:07,269 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 23:49:07,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 54 events. 7/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 92. Up to 8 conditions per place. [2022-12-05 23:49:07,270 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,270 INFO L188 LiptonReduction]: Number of co-enabled transitions 148 [2022-12-05 23:49:07,270 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:49:07,271 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 8 [2022-12-05 23:49:07,271 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 184 flow [2022-12-05 23:49:07,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2022-12-05 23:49:07,271 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:07,271 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:07,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-05 23:49:07,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-05 23:49:07,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:07,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:07,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1809985860, now seen corresponding path program 2 times [2022-12-05 23:49:07,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:07,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057556462] [2022-12-05 23:49:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-05 23:49:07,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:07,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057556462] [2022-12-05 23:49:07,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057556462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:49:07,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:49:07,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 23:49:07,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193855147] [2022-12-05 23:49:07,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:49:07,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 23:49:07,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:07,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 23:49:07,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 23:49:07,582 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 26 [2022-12-05 23:49:07,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-05 23:49:07,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:07,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 26 [2022-12-05 23:49:07,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:07,635 INFO L130 PetriNetUnfolder]: 163/298 cut-off events. [2022-12-05 23:49:07,636 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-05 23:49:07,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 298 events. 163/298 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 920 event pairs, 46 based on Foata normal form. 4/260 useless extension candidates. Maximal degree in co-relation 641. Up to 251 conditions per place. [2022-12-05 23:49:07,637 INFO L137 encePairwiseOnDemand]: 23/26 looper letters, 39 selfloop transitions, 2 changer transitions 3/45 dead transitions. [2022-12-05 23:49:07,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 294 flow [2022-12-05 23:49:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 23:49:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 23:49:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2022-12-05 23:49:07,637 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.47435897435897434 [2022-12-05 23:49:07,637 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 184 flow. Second operand 3 states and 37 transitions. [2022-12-05 23:49:07,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 294 flow [2022-12-05 23:49:07,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 270 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-05 23:49:07,641 INFO L231 Difference]: Finished difference. Result has 41 places, 38 transitions, 172 flow [2022-12-05 23:49:07,641 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=41, PETRI_TRANSITIONS=38} [2022-12-05 23:49:07,643 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 15 predicate places. [2022-12-05 23:49:07,643 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:07,643 INFO L89 Accepts]: Start accepts. Operand has 41 places, 38 transitions, 172 flow [2022-12-05 23:49:07,644 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:07,644 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:07,644 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 38 transitions, 172 flow [2022-12-05 23:49:07,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 172 flow [2022-12-05 23:49:07,649 INFO L130 PetriNetUnfolder]: 11/54 cut-off events. [2022-12-05 23:49:07,649 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-05 23:49:07,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 54 events. 11/54 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 1 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2022-12-05 23:49:07,649 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 38 transitions, 172 flow [2022-12-05 23:49:07,649 INFO L188 LiptonReduction]: Number of co-enabled transitions 144 [2022-12-05 23:49:07,650 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 23:49:07,652 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9 [2022-12-05 23:49:07,652 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 172 flow [2022-12-05 23:49:07,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-05 23:49:07,652 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 23:49:07,652 INFO L213 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 23:49:07,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 23:49:07,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 23:49:07,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 23:49:07,652 INFO L85 PathProgramCache]: Analyzing trace with hash 806765234, now seen corresponding path program 1 times [2022-12-05 23:49:07,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 23:49:07,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270478868] [2022-12-05 23:49:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 23:49:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 23:49:07,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 23:49:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-05 23:49:08,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 23:49:08,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270478868] [2022-12-05 23:49:08,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270478868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 23:49:08,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 23:49:08,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-05 23:49:08,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513804992] [2022-12-05 23:49:08,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 23:49:08,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-05 23:49:08,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 23:49:08,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-05 23:49:08,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-05 23:49:08,473 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 25 [2022-12-05 23:49:08,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 172 flow. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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) [2022-12-05 23:49:08,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 23:49:08,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 25 [2022-12-05 23:49:08,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 23:49:08,842 INFO L130 PetriNetUnfolder]: 258/452 cut-off events. [2022-12-05 23:49:08,842 INFO L131 PetriNetUnfolder]: For 150/150 co-relation queries the response was YES. [2022-12-05 23:49:08,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122 conditions, 452 events. 258/452 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1637 event pairs, 86 based on Foata normal form. 9/394 useless extension candidates. Maximal degree in co-relation 1057. Up to 186 conditions per place. [2022-12-05 23:49:08,844 INFO L137 encePairwiseOnDemand]: 14/25 looper letters, 70 selfloop transitions, 12 changer transitions 10/92 dead transitions. [2022-12-05 23:49:08,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 92 transitions, 500 flow [2022-12-05 23:49:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 23:49:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 23:49:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 82 transitions. [2022-12-05 23:49:08,845 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36444444444444446 [2022-12-05 23:49:08,845 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 172 flow. Second operand 9 states and 82 transitions. [2022-12-05 23:49:08,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 92 transitions, 500 flow [2022-12-05 23:49:08,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 92 transitions, 486 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-12-05 23:49:08,847 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 253 flow [2022-12-05 23:49:08,847 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=25, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=253, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2022-12-05 23:49:08,848 INFO L294 CegarLoopForPetriNet]: 26 programPoint places, 27 predicate places. [2022-12-05 23:49:08,848 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 23:49:08,848 INFO L89 Accepts]: Start accepts. Operand has 53 places, 47 transitions, 253 flow [2022-12-05 23:49:08,849 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:08,849 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 23:49:08,849 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 253 flow [2022-12-05 23:49:08,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 47 transitions, 253 flow [2022-12-05 23:49:08,857 INFO L130 PetriNetUnfolder]: 27/109 cut-off events. [2022-12-05 23:49:08,857 INFO L131 PetriNetUnfolder]: For 39/42 co-relation queries the response was YES. [2022-12-05 23:49:08,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 109 events. 27/109 cut-off events. For 39/42 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 354 event pairs, 1 based on Foata normal form. 2/107 useless extension candidates. Maximal degree in co-relation 243. Up to 17 conditions per place. [2022-12-05 23:49:08,858 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 47 transitions, 253 flow [2022-12-05 23:49:08,858 INFO L188 LiptonReduction]: Number of co-enabled transitions 188 [2022-12-05 23:49:08,863 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [672] L51-9-->thread1EXIT: Formula: (and (= |v_thread1Thread1of1ForFork1_#res#1.base_13| 0) (= |v_thread1Thread1of1ForFork1_#res#1.offset_13| 0) (not (= |v_thread1Thread1of1ForFork1_~comp~0#1_27| 0)) (= |v_thread1Thread1of1ForFork1_~comp~0#1_27| v_~res1~0_20)) InVars {thread1Thread1of1ForFork1_~comp~0#1=|v_thread1Thread1of1ForFork1_~comp~0#1_27|} OutVars{~res1~0=v_~res1~0_20, thread1Thread1of1ForFork1_#t~mem4#1=|v_thread1Thread1of1ForFork1_#t~mem4#1_27|, thread1Thread1of1ForFork1_#t~ite5#1=|v_thread1Thread1of1ForFork1_#t~ite5#1_27|, thread1Thread1of1ForFork1_~comp~0#1=|v_thread1Thread1of1ForFork1_~comp~0#1_27|, thread1Thread1of1ForFork1_#t~mem2#1=|v_thread1Thread1of1ForFork1_#t~mem2#1_27|, thread1Thread1of1ForFork1_#t~mem3#1=|v_thread1Thread1of1ForFork1_#t~mem3#1_21|, thread1Thread1of1ForFork1_#res#1.offset=|v_thread1Thread1of1ForFork1_#res#1.offset_13|, thread1Thread1of1ForFork1_#res#1.base=|v_thread1Thread1of1ForFork1_#res#1.base_13|, thread1Thread1of1ForFork1_#t~mem1#1=|v_thread1Thread1of1ForFork1_#t~mem1#1_27|} AuxVars[] AssignedVars[~res1~0, thread1Thread1of1ForFork1_#t~mem4#1, thread1Thread1of1ForFork1_#t~ite5#1, thread1Thread1of1ForFork1_#t~mem2#1, thread1Thread1of1ForFork1_#t~mem3#1, thread1Thread1of1ForFork1_#res#1.offset, thread1Thread1of1ForFork1_#res#1.base, thread1Thread1of1ForFork1_#t~mem1#1] and [667] L87-4-->L88-3: Formula: (and (= |v_#pthreadsForks_41| (+ |v_#pthreadsForks_42| 1)) (= (store |v_#memory_int_120| |v_ULTIMATE.start_main_~#t2~0#1.base_37| (store (select |v_#memory_int_120| |v_ULTIMATE.start_main_~#t2~0#1.base_37|) |v_ULTIMATE.start_main_~#t2~0#1.offset_37| |v_ULTIMATE.start_main_#t~pre19#1_27|)) |v_#memory_int_119|) (= |v_ULTIMATE.start_main_#t~pre19#1_27| |v_#pthreadsForks_42|)) InVars {#pthreadsForks=|v_#pthreadsForks_42|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #memory_int=|v_#memory_int_120|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_37|} OutVars{#pthreadsForks=|v_#pthreadsForks_41|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #memory_int=|v_#memory_int_119|, ULTIMATE.start_main_#t~nondet18#1=|v_ULTIMATE.start_main_#t~nondet18#1_5|, ULTIMATE.start_main_#t~pre17#1=|v_ULTIMATE.start_main_#t~pre17#1_13|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_37|, ULTIMATE.start_main_#t~pre19#1=|v_ULTIMATE.start_main_#t~pre19#1_27|} AuxVars[] AssignedVars[#pthreadsForks, #memory_int, ULTIMATE.start_main_#t~nondet18#1, ULTIMATE.start_main_#t~pre17#1, ULTIMATE.start_main_#t~pre19#1] [2022-12-05 23:49:08,894 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-05 23:49:08,901 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [623] L51-1-->L51-9: Formula: (and (= |v_thread1Thread1of1ForFork1_#t~mem2#1_25| (select (select |v_#memory_int_93| v_~scoreB~0.base_35) (+ (* |v_thread1Thread1of1ForFork1_~i~0#1_47| 4) v_~scoreB~0.offset_35))) (< |v_thread1Thread1of1ForFork1_#t~mem1#1_25| |v_thread1Thread1of1ForFork1_#t~mem2#1_25|) (= |v_thread1Thread1of1ForFork1_~comp~0#1_25| |v_thread1Thread1of1ForFork1_#t~ite5#1_25|) (= (+ |v_thread1Thread1of1ForFork1_#t~ite5#1_25| 1) 0)) InVars {~scoreB~0.offset=v_~scoreB~0.offset_35, thread1Thread1of1ForFork1_~i~0#1=|v_thread1Thread1of1ForFork1_~i~0#1_47|, #memory_int=|v_#memory_int_93|, ~scoreB~0.base=v_~scoreB~0.base_35, thread1Thread1of1ForFork1_#t~mem1#1=|v_thread1Thread1of1ForFork1_#t~mem1#1_25|} OutVars{~scoreB~0.offset=v_~scoreB~0.offset_35, thread1Thread1of1ForFork1_~i~0#1=|v_thread1Thread1of1ForFork1_~i~0#1_47|, thread1Thread1of1ForFork1_#t~ite5#1=|v_thread1Thread1of1ForFork1_#t~ite5#1_25|, #memory_int=|v_#memory_int_93|, thread1Thread1of1ForFork1_~comp~0#1=|v_thread1Thread1of1ForFork1_~comp~0#1_25|, thread1Thread1of1ForFork1_#t~mem2#1=|v_thread1Thread1of1ForFork1_#t~mem2#1_25|, ~scoreB~0.base=v_~scoreB~0.base_35, thread1Thread1of1ForFork1_#t~mem1#1=|v_thread1Thread1of1ForFork1_#t~mem1#1_25|} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_#t~ite5#1, thread1Thread1of1ForFork1_~comp~0#1, thread1Thread1of1ForFork1_#t~mem2#1] and [667] L87-4-->L88-3: Formula: (and (= |v_#pthreadsForks_41| (+ |v_#pthreadsForks_42| 1)) (= (store |v_#memory_int_120| |v_ULTIMATE.start_main_~#t2~0#1.base_37| (store (select |v_#memory_int_120| |v_ULTIMATE.start_main_~#t2~0#1.base_37|) |v_ULTIMATE.start_main_~#t2~0#1.offset_37| |v_ULTIMATE.start_main_#t~pre19#1_27|)) |v_#memory_int_119|) (= |v_ULTIMATE.start_main_#t~pre19#1_27| |v_#pthreadsForks_42|)) InVars {#pthreadsForks=|v_#pthreadsForks_42|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #memory_int=|v_#memory_int_120|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_37|} OutVars{#pthreadsForks=|v_#pthreadsForks_41|, ULTIMATE.start_main_~#t2~0#1.offset=|v_ULTIMATE.start_main_~#t2~0#1.offset_37|, #memory_int=|v_#memory_int_119|, ULTIMATE.start_main_#t~nondet18#1=|v_ULTIMATE.start_main_#t~nondet18#1_5|, ULTIMATE.start_main_#t~pre17#1=|v_ULTIMATE.start_main_#t~pre17#1_13|, ULTIMATE.start_main_~#t2~0#1.base=|v_ULTIMATE.start_main_~#t2~0#1.base_37|, ULTIMATE.start_main_#t~pre19#1=|v_ULTIMATE.start_main_#t~pre19#1_27|} AuxVars[] AssignedVars[#pthreadsForks, #memory_int, ULTIMATE.start_main_#t~nondet18#1, ULTIMATE.start_main_#t~pre17#1, ULTIMATE.start_main_#t~pre19#1] [2022-12-05 23:49:09,028 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-05 23:49:09,029 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-05 23:49:09,029 INFO L89 Accepts]: Start accepts. Operand has 49 places, 45 transitions, 251 flow [2022-12-05 23:49:09,029 INFO L95 Accepts]: Finished accepts. [2022-12-05 23:49:09,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 23:49:09,030 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-05 23:49:09,032 INFO L158 Benchmark]: Toolchain (without parser) took 9878.91ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 164.4MB in the beginning and 240.7MB in the end (delta: -76.3MB). Peak memory consumption was 163.1MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,032 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 23:49:09,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.09ms. Allocated memory is still 188.7MB. Free memory was 164.4MB in the beginning and 152.7MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.37ms. Allocated memory is still 188.7MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,033 INFO L158 Benchmark]: Boogie Preprocessor took 31.46ms. Allocated memory is still 188.7MB. Free memory was 150.6MB in the beginning and 149.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,033 INFO L158 Benchmark]: RCFGBuilder took 519.00ms. Allocated memory is still 188.7MB. Free memory was 148.8MB in the beginning and 165.6MB in the end (delta: -16.8MB). Peak memory consumption was 21.8MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,033 INFO L158 Benchmark]: TraceAbstraction took 9061.41ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 164.9MB in the beginning and 240.7MB in the end (delta: -75.7MB). Peak memory consumption was 162.3MB. Max. memory is 8.0GB. [2022-12-05 23:49:09,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 105.0MB in the beginning and 104.9MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 216.09ms. Allocated memory is still 188.7MB. Free memory was 164.4MB in the beginning and 152.7MB in the end (delta: 11.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.37ms. Allocated memory is still 188.7MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.46ms. Allocated memory is still 188.7MB. Free memory was 150.6MB in the beginning and 149.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 519.00ms. Allocated memory is still 188.7MB. Free memory was 148.8MB in the beginning and 165.6MB in the end (delta: -16.8MB). Peak memory consumption was 21.8MB. Max. memory is 8.0GB. * TraceAbstraction took 9061.41ms. Allocated memory was 188.7MB in the beginning and 272.6MB in the end (delta: 83.9MB). Free memory was 164.9MB in the beginning and 240.7MB in the end (delta: -75.7MB). Peak memory consumption was 162.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 173 PlacesBefore, 26 PlacesAfterwards, 185 TransitionsBefore, 25 TransitionsAfterwards, 3332 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 90 TrivialYvCompositions, 57 ConcurrentYvCompositions, 13 ChoiceCompositions, 160 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2188, independent: 2162, independent conditional: 2162, independent unconditional: 0, dependent: 26, dependent conditional: 26, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2188, independent: 2162, independent conditional: 0, independent unconditional: 2162, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2188, independent: 2162, independent conditional: 0, independent unconditional: 2162, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2188, independent: 2162, independent conditional: 0, independent unconditional: 2162, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1838, independent: 1824, independent conditional: 0, independent unconditional: 1824, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1838, independent: 1824, independent conditional: 0, independent unconditional: 1824, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2188, independent: 338, independent conditional: 0, independent unconditional: 338, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 1838, unknown conditional: 0, unknown unconditional: 1838] , Statistics on independence cache: Total cache size (in pairs): 3517, Positive cache size: 3503, Positive conditional cache size: 0, Positive unconditional cache size: 3503, Negative cache size: 14, Negative conditional cache size: 0, 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, 25 PlacesBefore, 25 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, independent: 16, independent conditional: 16, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 32 PlacesBefore, 32 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 40, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 48, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 48, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, independent: 21, independent conditional: 0, independent unconditional: 21, 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: 21, independent: 21, independent conditional: 0, independent unconditional: 21, 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: 48, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 37 PlacesBefore, 37 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 102, independent: 86, independent conditional: 86, 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: 102, independent: 86, independent conditional: 0, independent unconditional: 86, 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: 102, independent: 86, independent conditional: 0, independent unconditional: 86, 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: 102, independent: 86, independent conditional: 0, independent unconditional: 86, 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: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 6, independent: 6, independent conditional: 0, independent unconditional: 6, 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: 102, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 42 PlacesBefore, 42 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 0, dependent unconditional: 8, 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: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 40 PlacesBefore, 40 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, 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: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 51 PlacesBefore, 49 PlacesAfterwards, 47 TransitionsBefore, 45 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 22, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 22, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 9, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22, independent: 5, independent conditional: 5, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 50, Positive conditional cache size: 9, Positive unconditional cache size: 41, Negative cache size: 11, Negative conditional cache size: 4, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-05 23:49:09,067 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...