/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 21:37:21,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:37:21,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:37:21,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 21:37:21,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 21:37:21,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 21:37:21,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 21:37:21,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 21:37:21,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 21:37:21,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 21:37:21,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 21:37:21,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 21:37:21,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:37:21,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:37:21,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:37:21,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:37:21,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:37:21,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:37:21,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:37:21,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:37:21,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:37:21,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:37:21,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:37:21,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:37:21,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:37:21,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:37:21,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:37:21,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:37:21,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:37:21,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-12 21:37:21,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-12 21:37:21,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-12 21:37:21,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-12 21:37:21,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-12 21:37:21,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-12 21:37:21,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-12 21:37:21,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-12 21:37:21,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-12 21:37:21,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:37:21,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:37:21,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:37:21,620 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-SemanticLbe.epf [2022-12-12 21:37:21,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:37:21,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:37:21,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:37:21,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:37:21,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:37:21,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:37:21,648 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:37:21,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:37:21,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:37:21,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:37:21,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:37:21,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:37:21,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:37:21,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:37:22,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:37:22,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:37:22,022 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:37:22,023 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:37:22,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:37:23,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:37:23,461 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:37:23,462 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:37:23,477 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce8b92f9/9c8efa41cb374ed2ae81ce4bf59dc398/FLAGb741a6ebb [2022-12-12 21:37:23,492 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce8b92f9/9c8efa41cb374ed2ae81ce4bf59dc398 [2022-12-12 21:37:23,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:37:23,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:37:23,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:37:23,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:37:23,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:37:23,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:37:23" (1/1) ... [2022-12-12 21:37:23,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c932db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:23, skipping insertion in model container [2022-12-12 21:37:23,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:37:23" (1/1) ... [2022-12-12 21:37:23,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:37:23,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:37:23,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:37:23,822 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,825 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,826 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,832 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,833 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,834 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,835 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,842 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,843 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,847 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,848 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,852 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,853 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,855 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,888 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,889 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:37:23,900 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:37:23,912 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-12-12 21:37:23,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,931 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,933 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,935 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,936 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,937 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,938 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,946 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,947 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,956 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,959 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-12 21:37:23,968 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-12 21:37:23,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:37:24,006 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:37:24,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24 WrapperNode [2022-12-12 21:37:24,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:37:24,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:37:24,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:37:24,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:37:24,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,085 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-12 21:37:24,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:37:24,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:37:24,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:37:24,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:37:24,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,122 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:37:24,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:37:24,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:37:24,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:37:24,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (1/1) ... [2022-12-12 21:37:24,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:37:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:37:24,168 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) [2022-12-12 21:37:24,197 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 [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:37:24,213 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-12 21:37:24,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-12 21:37:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-12 21:37:24,214 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-12 21:37:24,214 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-12 21:37:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-12 21:37:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-12 21:37:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-12 21:37:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:37:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-12 21:37:24,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:37:24,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:37:24,216 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:37:24,416 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:37:24,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:37:24,715 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:37:24,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:37:24,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 21:37:24,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:37:24 BoogieIcfgContainer [2022-12-12 21:37:24,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:37:24,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:37:24,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:37:24,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:37:24,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:37:23" (1/3) ... [2022-12-12 21:37:24,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b04c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:37:24, skipping insertion in model container [2022-12-12 21:37:24,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:37:24" (2/3) ... [2022-12-12 21:37:24,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b04c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:37:24, skipping insertion in model container [2022-12-12 21:37:24,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:37:24" (3/3) ... [2022-12-12 21:37:24,837 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-12-12 21:37:24,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:37:24,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-12 21:37:24,852 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:37:24,911 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-12 21:37:24,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 21:37:25,000 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 21:37:25,001 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:37:25,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:37:25,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-12 21:37:25,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-12 21:37:25,012 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:37:25,028 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 21:37:25,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-12 21:37:25,078 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-12 21:37:25,078 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:37:25,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-12-12 21:37:25,083 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-12 21:37:25,083 INFO L226 LiptonReduction]: Number of co-enabled transitions 3270 [2022-12-12 21:37:31,664 INFO L241 LiptonReduction]: Total number of compositions: 101 [2022-12-12 21:37:31,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:37:31,697 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16dafd1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:37:31,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-12 21:37:31,707 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-12 21:37:31,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:37:31,708 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:37:31,709 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-12 21:37:31,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:37:31,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:37:31,714 INFO L85 PathProgramCache]: Analyzing trace with hash 592657, now seen corresponding path program 1 times [2022-12-12 21:37:31,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:37:31,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835941852] [2022-12-12 21:37:31,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:37:31,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:37:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:37:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:37:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:37:32,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835941852] [2022-12-12 21:37:32,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835941852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:37:32,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:37:32,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:37:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268166677] [2022-12-12 21:37:32,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:37:32,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:37:32,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:37:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:37:32,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:37:32,156 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 84 [2022-12-12 21:37:32,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 84 transitions, 180 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:37:32,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:37:32,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 84 [2022-12-12 21:37:32,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:37:41,343 INFO L130 PetriNetUnfolder]: 78140/113356 cut-off events. [2022-12-12 21:37:41,343 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-12 21:37:41,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216370 conditions, 113356 events. 78140/113356 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 5291. Compared 934591 event pairs, 11700 based on Foata normal form. 0/71018 useless extension candidates. Maximal degree in co-relation 216358. Up to 86085 conditions per place. [2022-12-12 21:37:41,701 INFO L137 encePairwiseOnDemand]: 79/84 looper letters, 50 selfloop transitions, 2 changer transitions 71/139 dead transitions. [2022-12-12 21:37:41,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 139 transitions, 543 flow [2022-12-12 21:37:41,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:37:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:37:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2022-12-12 21:37:41,714 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-12-12 21:37:41,721 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-12-12 21:37:41,722 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 139 transitions, 543 flow [2022-12-12 21:37:41,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 68 transitions, 261 flow [2022-12-12 21:37:41,865 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 261 flow [2022-12-12 21:37:41,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-12 21:37:41,865 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:37:41,865 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:37:41,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:37:41,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:37:41,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:37:41,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1090959398, now seen corresponding path program 1 times [2022-12-12 21:37:41,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:37:41,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720664455] [2022-12-12 21:37:41,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:37:41,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:37:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:37:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:37:42,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:37:42,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720664455] [2022-12-12 21:37:42,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720664455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:37:42,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:37:42,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-12 21:37:42,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481089802] [2022-12-12 21:37:42,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:37:42,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:37:42,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:37:42,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:37:42,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:37:42,197 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 21:37:42,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:37:42,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:37:42,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 21:37:42,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:37:47,372 INFO L130 PetriNetUnfolder]: 50495/70172 cut-off events. [2022-12-12 21:37:47,372 INFO L131 PetriNetUnfolder]: For 10468/10468 co-relation queries the response was YES. [2022-12-12 21:37:47,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192560 conditions, 70172 events. 50495/70172 cut-off events. For 10468/10468 co-relation queries the response was YES. Maximal size of possible extension queue 2382. Compared 465851 event pairs, 5271 based on Foata normal form. 1542/59038 useless extension candidates. Maximal degree in co-relation 192545. Up to 47876 conditions per place. [2022-12-12 21:37:47,751 INFO L137 encePairwiseOnDemand]: 75/84 looper letters, 93 selfloop transitions, 11 changer transitions 2/117 dead transitions. [2022-12-12 21:37:47,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 117 transitions, 671 flow [2022-12-12 21:37:47,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:37:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:37:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2022-12-12 21:37:47,756 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3968253968253968 [2022-12-12 21:37:47,757 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-12 21:37:47,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 117 transitions, 671 flow [2022-12-12 21:37:48,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 115 transitions, 663 flow [2022-12-12 21:37:48,031 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 115 transitions, 663 flow [2022-12-12 21:37:48,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:37:48,032 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:37:48,032 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:37:48,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:37:48,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:37:48,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:37:48,033 INFO L85 PathProgramCache]: Analyzing trace with hash 539995494, now seen corresponding path program 1 times [2022-12-12 21:37:48,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:37:48,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895898158] [2022-12-12 21:37:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:37:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:37:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:37:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:37:48,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:37:48,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895898158] [2022-12-12 21:37:48,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895898158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:37:48,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:37:48,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:37:48,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682080680] [2022-12-12 21:37:48,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:37:48,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:37:48,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:37:48,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:37:48,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:37:48,233 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 21:37:48,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 115 transitions, 663 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:37:48,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:37:48,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 21:37:48,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:37:52,502 INFO L130 PetriNetUnfolder]: 39136/55160 cut-off events. [2022-12-12 21:37:52,502 INFO L131 PetriNetUnfolder]: For 6330/6330 co-relation queries the response was YES. [2022-12-12 21:37:52,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205647 conditions, 55160 events. 39136/55160 cut-off events. For 6330/6330 co-relation queries the response was YES. Maximal size of possible extension queue 1924. Compared 367229 event pairs, 1798 based on Foata normal form. 78/45141 useless extension candidates. Maximal degree in co-relation 205629. Up to 39414 conditions per place. [2022-12-12 21:37:52,821 INFO L137 encePairwiseOnDemand]: 75/84 looper letters, 149 selfloop transitions, 16 changer transitions 0/176 dead transitions. [2022-12-12 21:37:52,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 176 transitions, 1365 flow [2022-12-12 21:37:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:37:52,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:37:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2022-12-12 21:37:52,824 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38392857142857145 [2022-12-12 21:37:52,826 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-12 21:37:52,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 176 transitions, 1365 flow [2022-12-12 21:37:53,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 176 transitions, 1365 flow [2022-12-12 21:37:53,195 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 176 transitions, 1365 flow [2022-12-12 21:37:53,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:37:53,196 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:37:53,196 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:37:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:37:53,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:37:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:37:53,196 INFO L85 PathProgramCache]: Analyzing trace with hash 539997974, now seen corresponding path program 1 times [2022-12-12 21:37:53,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:37:53,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935569107] [2022-12-12 21:37:53,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:37:53,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:37:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:37:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:37:53,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:37:53,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935569107] [2022-12-12 21:37:53,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935569107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:37:53,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:37:53,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:37:53,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672842076] [2022-12-12 21:37:53,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:37:53,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:37:53,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:37:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:37:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:37:53,317 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 21:37:53,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 176 transitions, 1365 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:37:53,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:37:53,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 21:37:53,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:37:57,380 INFO L130 PetriNetUnfolder]: 38454/54188 cut-off events. [2022-12-12 21:37:57,380 INFO L131 PetriNetUnfolder]: For 6242/6242 co-relation queries the response was YES. [2022-12-12 21:37:57,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253555 conditions, 54188 events. 38454/54188 cut-off events. For 6242/6242 co-relation queries the response was YES. Maximal size of possible extension queue 1870. Compared 358926 event pairs, 1684 based on Foata normal form. 80/44319 useless extension candidates. Maximal degree in co-relation 253534. Up to 38744 conditions per place. [2022-12-12 21:37:57,661 INFO L137 encePairwiseOnDemand]: 75/84 looper letters, 201 selfloop transitions, 25 changer transitions 0/237 dead transitions. [2022-12-12 21:37:57,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 237 transitions, 2310 flow [2022-12-12 21:37:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:37:57,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:37:57,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2022-12-12 21:37:57,663 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.3958333333333333 [2022-12-12 21:37:57,664 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-12-12 21:37:57,664 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 237 transitions, 2310 flow [2022-12-12 21:37:57,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 237 transitions, 2310 flow [2022-12-12 21:37:57,876 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 237 transitions, 2310 flow [2022-12-12 21:37:57,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2022-12-12 21:37:57,876 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:37:57,876 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:37:57,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:37:57,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:37:57,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:37:57,877 INFO L85 PathProgramCache]: Analyzing trace with hash -440007926, now seen corresponding path program 1 times [2022-12-12 21:37:57,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:37:57,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222757825] [2022-12-12 21:37:57,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:37:57,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:37:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:37:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:37:58,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:37:58,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222757825] [2022-12-12 21:37:58,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222757825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:37:58,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:37:58,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:37:58,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953769849] [2022-12-12 21:37:58,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:37:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:37:58,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:37:58,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:37:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:37:58,006 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 84 [2022-12-12 21:37:58,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 237 transitions, 2310 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 21:37:58,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:37:58,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 84 [2022-12-12 21:37:58,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:02,080 INFO L130 PetriNetUnfolder]: 35685/50340 cut-off events. [2022-12-12 21:38:02,080 INFO L131 PetriNetUnfolder]: For 6014/6014 co-relation queries the response was YES. [2022-12-12 21:38:02,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283521 conditions, 50340 events. 35685/50340 cut-off events. For 6014/6014 co-relation queries the response was YES. Maximal size of possible extension queue 1677. Compared 322573 event pairs, 780 based on Foata normal form. 510/41742 useless extension candidates. Maximal degree in co-relation 283497. Up to 36162 conditions per place. [2022-12-12 21:38:02,375 INFO L137 encePairwiseOnDemand]: 75/84 looper letters, 278 selfloop transitions, 22 changer transitions 11/322 dead transitions. [2022-12-12 21:38:02,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 322 transitions, 3760 flow [2022-12-12 21:38:02,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-12 21:38:02,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-12 21:38:02,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2022-12-12 21:38:02,376 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2022-12-12 21:38:02,377 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2022-12-12 21:38:02,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 322 transitions, 3760 flow [2022-12-12 21:38:02,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 311 transitions, 3628 flow [2022-12-12 21:38:02,750 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 311 transitions, 3628 flow [2022-12-12 21:38:02,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-12-12 21:38:02,750 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:02,750 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:02,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:38:02,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:38:02,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:02,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1935150920, now seen corresponding path program 1 times [2022-12-12 21:38:02,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:02,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564865900] [2022-12-12 21:38:02,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:02,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:38:02,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:02,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564865900] [2022-12-12 21:38:02,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564865900] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:02,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:02,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:38:02,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980670206] [2022-12-12 21:38:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:02,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:02,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:02,850 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 84 [2022-12-12 21:38:02,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 311 transitions, 3628 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-12-12 21:38:02,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:02,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 84 [2022-12-12 21:38:02,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:08,774 INFO L130 PetriNetUnfolder]: 46024/65743 cut-off events. [2022-12-12 21:38:08,774 INFO L131 PetriNetUnfolder]: For 21390/21390 co-relation queries the response was YES. [2022-12-12 21:38:08,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 425462 conditions, 65743 events. 46024/65743 cut-off events. For 21390/21390 co-relation queries the response was YES. Maximal size of possible extension queue 2252. Compared 445778 event pairs, 1006 based on Foata normal form. 720/54878 useless extension candidates. Maximal degree in co-relation 425435. Up to 48348 conditions per place. [2022-12-12 21:38:09,147 INFO L137 encePairwiseOnDemand]: 81/84 looper letters, 315 selfloop transitions, 12 changer transitions 34/394 dead transitions. [2022-12-12 21:38:09,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 394 transitions, 5355 flow [2022-12-12 21:38:09,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:38:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:38:09,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2022-12-12 21:38:09,151 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.38492063492063494 [2022-12-12 21:38:09,152 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2022-12-12 21:38:09,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 394 transitions, 5355 flow [2022-12-12 21:38:09,396 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 360 transitions, 4877 flow [2022-12-12 21:38:09,396 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 360 transitions, 4877 flow [2022-12-12 21:38:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2022-12-12 21:38:09,396 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:09,397 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:09,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:38:09,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:38:09,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1935280655, now seen corresponding path program 1 times [2022-12-12 21:38:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246058917] [2022-12-12 21:38:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:09,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:38:09,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:09,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246058917] [2022-12-12 21:38:09,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246058917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:09,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:09,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:38:09,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787497758] [2022-12-12 21:38:09,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:09,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:38:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:38:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:38:09,711 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 84 [2022-12-12 21:38:09,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 360 transitions, 4877 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-12-12 21:38:09,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:09,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 84 [2022-12-12 21:38:09,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:22,650 INFO L130 PetriNetUnfolder]: 87699/120968 cut-off events. [2022-12-12 21:38:22,650 INFO L131 PetriNetUnfolder]: For 320790/325086 co-relation queries the response was YES. [2022-12-12 21:38:22,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830078 conditions, 120968 events. 87699/120968 cut-off events. For 320790/325086 co-relation queries the response was YES. Maximal size of possible extension queue 4529. Compared 824873 event pairs, 11328 based on Foata normal form. 8578/109554 useless extension candidates. Maximal degree in co-relation 830048. Up to 86396 conditions per place. [2022-12-12 21:38:23,589 INFO L137 encePairwiseOnDemand]: 69/84 looper letters, 428 selfloop transitions, 107 changer transitions 439/1009 dead transitions. [2022-12-12 21:38:23,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 1009 transitions, 15809 flow [2022-12-12 21:38:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:38:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:38:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 169 transitions. [2022-12-12 21:38:23,593 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4023809523809524 [2022-12-12 21:38:23,594 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -21 predicate places. [2022-12-12 21:38:23,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 1009 transitions, 15809 flow [2022-12-12 21:38:24,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 570 transitions, 8881 flow [2022-12-12 21:38:24,124 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 570 transitions, 8881 flow [2022-12-12 21:38:24,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2022-12-12 21:38:24,124 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:24,124 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:24,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-12 21:38:24,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:38:24,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:24,125 INFO L85 PathProgramCache]: Analyzing trace with hash 773853248, now seen corresponding path program 1 times [2022-12-12 21:38:24,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:24,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922202675] [2022-12-12 21:38:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:24,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:38:24,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:24,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922202675] [2022-12-12 21:38:24,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922202675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:24,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:24,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:38:24,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26648742] [2022-12-12 21:38:24,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:24,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:38:24,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:24,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:38:24,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:38:24,294 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 84 [2022-12-12 21:38:24,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 570 transitions, 8881 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-12-12 21:38:24,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:24,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 84 [2022-12-12 21:38:24,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:38:41,962 INFO L130 PetriNetUnfolder]: 103725/142556 cut-off events. [2022-12-12 21:38:41,962 INFO L131 PetriNetUnfolder]: For 462552/466729 co-relation queries the response was YES. [2022-12-12 21:38:42,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091382 conditions, 142556 events. 103725/142556 cut-off events. For 462552/466729 co-relation queries the response was YES. Maximal size of possible extension queue 5110. Compared 976052 event pairs, 18158 based on Foata normal form. 2625/121215 useless extension candidates. Maximal degree in co-relation 1091349. Up to 129431 conditions per place. [2022-12-12 21:38:42,745 INFO L137 encePairwiseOnDemand]: 81/84 looper letters, 593 selfloop transitions, 23 changer transitions 80/728 dead transitions. [2022-12-12 21:38:42,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 728 transitions, 12817 flow [2022-12-12 21:38:42,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:38:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:38:42,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-12-12 21:38:42,747 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2022-12-12 21:38:42,748 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -21 predicate places. [2022-12-12 21:38:42,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 728 transitions, 12817 flow [2022-12-12 21:38:43,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 648 transitions, 11377 flow [2022-12-12 21:38:43,298 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 648 transitions, 11377 flow [2022-12-12 21:38:43,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-12-12 21:38:43,298 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:38:43,299 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:38:43,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-12 21:38:43,299 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-12 21:38:43,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:38:43,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1117971377, now seen corresponding path program 1 times [2022-12-12 21:38:43,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:38:43,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242817431] [2022-12-12 21:38:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:38:43,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:38:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:38:43,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:38:43,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:38:43,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242817431] [2022-12-12 21:38:43,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242817431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:38:43,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:38:43,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-12 21:38:43,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752068152] [2022-12-12 21:38:43,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:38:43,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-12 21:38:43,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:38:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-12 21:38:43,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-12 21:38:43,510 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 84 [2022-12-12 21:38:43,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 648 transitions, 11377 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2022-12-12 21:38:43,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:38:43,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 84 [2022-12-12 21:38:43,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand