/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:15:20,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:15:20,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:15:20,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:15:20,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:15:20,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:15:20,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:15:20,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:15:20,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:15:20,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:15:20,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:15:20,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:15:20,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:15:20,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:15:20,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:15:20,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:15:20,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:15:20,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:15:20,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:15:20,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:15:20,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:15:20,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:15:20,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:15:20,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:15:20,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:15:20,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:15:20,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:15:20,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:15:20,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:15:20,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:15:20,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:15:20,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:15:20,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:15:20,487 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:15:20,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:15:20,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:15:20,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:15:20,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:15:20,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:15:20,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:15:20,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:15:20,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-13 06:15:20,540 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:15:20,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:15:20,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:15:20,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:15:20,543 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:15:20,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:15:20,544 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:15:20,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:15:20,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:15:20,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:15:20,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:15:20,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:15:20,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:15:20,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:15:20,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:15:20,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:15:20,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:15:20,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:15:20,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:15:20,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:15:20,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:15:20,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:15:20,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:15:20,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:15:20,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:15:20,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:15:20,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:15:20,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:15:20,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:15:20,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:15:20,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:15:20,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:15:20,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:15:20,893 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:15:20,894 INFO L432 ainManager$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 [2022-12-13 06:15:22,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:15:22,354 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:15:22,354 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:15:22,369 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99704fcce/3a7e130e468845b78f8e1fb80a98ee8d/FLAG505d34d08 [2022-12-13 06:15:22,385 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99704fcce/3a7e130e468845b78f8e1fb80a98ee8d [2022-12-13 06:15:22,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:15:22,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:15:22,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:15:22,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:15:22,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:15:22,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:15:22" (1/1) ... [2022-12-13 06:15:22,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2989a177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:22, skipping insertion in model container [2022-12-13 06:15:22,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:15:22" (1/1) ... [2022-12-13 06:15:22,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:15:22,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:15:22,648 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] [2022-12-13 06:15:22,846 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,850 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,851 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,856 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,857 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,858 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,859 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,867 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,868 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,874 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,875 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,900 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,913 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:22,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:22,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:15:22,943 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:15:22,957 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] [2022-12-13 06:15:22,999 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,001 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,002 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,003 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,004 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,006 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,007 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,008 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,009 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,010 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,015 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,016 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,017 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,022 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,023 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,024 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:15:23,025 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:15:23,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:15:23,072 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:15:23,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23 WrapperNode [2022-12-13 06:15:23,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:15:23,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:15:23,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:15:23,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:15:23,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,158 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-13 06:15:23,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:15:23,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:15:23,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:15:23,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:15:23,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,197 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:15:23,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:15:23,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:15:23,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:15:23,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (1/1) ... [2022-12-13 06:15:23,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:15:23,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:15:23,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 06:15:23,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 06:15:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:15:23,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:15:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:15:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:15:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:15:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 06:15:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 06:15:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 06:15:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 06:15:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 06:15:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 06:15:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 06:15:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 06:15:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:15:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:15:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:15:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:15:23,297 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 06:15:23,439 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:15:23,441 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:15:23,906 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:15:24,051 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:15:24,051 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 06:15:24,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:15:24 BoogieIcfgContainer [2022-12-13 06:15:24,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:15:24,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:15:24,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:15:24,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:15:24,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:15:22" (1/3) ... [2022-12-13 06:15:24,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e0e957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:15:24, skipping insertion in model container [2022-12-13 06:15:24,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:15:23" (2/3) ... [2022-12-13 06:15:24,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e0e957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:15:24, skipping insertion in model container [2022-12-13 06:15:24,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:15:24" (3/3) ... [2022-12-13 06:15:24,066 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-12-13 06:15:24,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:15:24,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 06:15:24,085 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:15:24,156 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:15:24,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 284 flow [2022-12-13 06:15:24,306 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-13 06:15:24,306 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:15:24,313 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. [2022-12-13 06:15:24,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 132 transitions, 284 flow [2022-12-13 06:15:24,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 128 transitions, 268 flow [2022-12-13 06:15:24,319 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:15:24,336 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-13 06:15:24,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 128 transitions, 268 flow [2022-12-13 06:15:24,377 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-12-13 06:15:24,378 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:15:24,380 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. [2022-12-13 06:15:24,385 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 128 transitions, 268 flow [2022-12-13 06:15:24,385 INFO L226 LiptonReduction]: Number of co-enabled transitions 3270 [2022-12-13 06:15:31,272 INFO L241 LiptonReduction]: Total number of compositions: 101 [2022-12-13 06:15:31,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:15:31,293 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;@6d9bb194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:15:31,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 06:15:31,296 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 06:15:31,296 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:15:31,297 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:15:31,297 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 06:15:31,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:15:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:15:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash 592657, now seen corresponding path program 1 times [2022-12-13 06:15:31,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:15:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484460949] [2022-12-13 06:15:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:15:31,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:15:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:15:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:15:31,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:15:31,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484460949] [2022-12-13 06:15:31,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484460949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:15:31,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:15:31,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:15:31,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107161981] [2022-12-13 06:15:31,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:15:31,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:15:31,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:15:31,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:15:31,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:15:31,759 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 84 [2022-12-13 06:15:31,762 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) [2022-12-13 06:15:31,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:15:31,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 84 [2022-12-13 06:15:31,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:15:41,422 INFO L130 PetriNetUnfolder]: 78140/113356 cut-off events. [2022-12-13 06:15:41,423 INFO L131 PetriNetUnfolder]: For 142/142 co-relation queries the response was YES. [2022-12-13 06:15:41,633 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. [2022-12-13 06:15:41,810 INFO L137 encePairwiseOnDemand]: 79/84 looper letters, 50 selfloop transitions, 2 changer transitions 71/139 dead transitions. [2022-12-13 06:15:41,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 139 transitions, 543 flow [2022-12-13 06:15:41,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:15:41,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:15:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2022-12-13 06:15:41,823 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-12-13 06:15:41,828 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2022-12-13 06:15:41,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 139 transitions, 543 flow [2022-12-13 06:15:42,010 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 68 transitions, 261 flow [2022-12-13 06:15:42,698 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:15:42,699 INFO L89 Accepts]: Start accepts. Operand has 60 places, 68 transitions, 261 flow [2022-12-13 06:15:42,704 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:15:42,704 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:15:42,704 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 68 transitions, 261 flow [2022-12-13 06:15:42,711 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 68 transitions, 261 flow [2022-12-13 06:15:42,712 INFO L226 LiptonReduction]: Number of co-enabled transitions 1104 [2022-12-13 06:15:53,300 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:15:53,302 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10604 [2022-12-13 06:15:53,303 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 261 flow [2022-12-13 06:15:53,303 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) [2022-12-13 06:15:53,303 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:15:53,303 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:15:53,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:15:53,304 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)] === [2022-12-13 06:15:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:15:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1090959398, now seen corresponding path program 1 times [2022-12-13 06:15:53,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:15:53,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53548738] [2022-12-13 06:15:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:15:53,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:15:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:15:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:15:53,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:15:53,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53548738] [2022-12-13 06:15:53,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53548738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:15:53,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:15:53,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:15:53,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596957184] [2022-12-13 06:15:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:15:53,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:15:53,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:15:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:15:53,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:15:53,610 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2022-12-13 06:15:53,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:15:53,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:15:53,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2022-12-13 06:15:53,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:15:58,857 INFO L130 PetriNetUnfolder]: 50495/70172 cut-off events. [2022-12-13 06:15:58,858 INFO L131 PetriNetUnfolder]: For 10468/10468 co-relation queries the response was YES. [2022-12-13 06:15:59,014 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. [2022-12-13 06:15:59,283 INFO L137 encePairwiseOnDemand]: 36/45 looper letters, 93 selfloop transitions, 11 changer transitions 2/117 dead transitions. [2022-12-13 06:15:59,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 117 transitions, 671 flow [2022-12-13 06:15:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:15:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:15:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2022-12-13 06:15:59,289 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7185185185185186 [2022-12-13 06:15:59,290 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -34 predicate places. [2022-12-13 06:15:59,290 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 117 transitions, 671 flow [2022-12-13 06:15:59,554 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 115 transitions, 663 flow [2022-12-13 06:16:00,052 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:00,052 INFO L89 Accepts]: Start accepts. Operand has 61 places, 115 transitions, 663 flow [2022-12-13 06:16:00,053 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:00,054 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:00,054 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 115 transitions, 663 flow [2022-12-13 06:16:00,058 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 115 transitions, 663 flow [2022-12-13 06:16:00,058 INFO L226 LiptonReduction]: Number of co-enabled transitions 1352 [2022-12-13 06:16:00,085 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:00,086 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-13 06:16:00,087 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 115 transitions, 663 flow [2022-12-13 06:16:00,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:00,087 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:00,087 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:00,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:16:00,087 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)] === [2022-12-13 06:16:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:00,088 INFO L85 PathProgramCache]: Analyzing trace with hash 539995494, now seen corresponding path program 1 times [2022-12-13 06:16:00,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:00,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333325769] [2022-12-13 06:16:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:00,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:00,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:00,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333325769] [2022-12-13 06:16:00,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333325769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:00,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:00,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:16:00,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11347682] [2022-12-13 06:16:00,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:00,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:16:00,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:00,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:16:00,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:16:00,317 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:16:00,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 115 transitions, 663 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:00,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:00,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:16:00,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:04,300 INFO L130 PetriNetUnfolder]: 39136/55160 cut-off events. [2022-12-13 06:16:04,300 INFO L131 PetriNetUnfolder]: For 6330/6330 co-relation queries the response was YES. [2022-12-13 06:16:04,426 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. [2022-12-13 06:16:04,880 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 149 selfloop transitions, 16 changer transitions 0/176 dead transitions. [2022-12-13 06:16:04,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:16:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:16:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2022-12-13 06:16:04,884 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7102272727272727 [2022-12-13 06:16:04,885 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -32 predicate places. [2022-12-13 06:16:04,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,148 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,466 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:05,466 INFO L89 Accepts]: Start accepts. Operand has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,467 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:05,468 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:05,468 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,474 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,474 INFO L226 LiptonReduction]: Number of co-enabled transitions 1812 [2022-12-13 06:16:05,493 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:05,495 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 29 [2022-12-13 06:16:05,495 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 176 transitions, 1365 flow [2022-12-13 06:16:05,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:05,495 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:05,495 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:05,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 06:16:05,496 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)] === [2022-12-13 06:16:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash 539997974, now seen corresponding path program 1 times [2022-12-13 06:16:05,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:05,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055081786] [2022-12-13 06:16:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:05,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:05,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055081786] [2022-12-13 06:16:05,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055081786] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:05,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:05,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:16:05,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077068980] [2022-12-13 06:16:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:05,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:16:05,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:05,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:16:05,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:16:05,705 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:16:05,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 176 transitions, 1365 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:05,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:05,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:16:05,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:10,151 INFO L130 PetriNetUnfolder]: 38454/54188 cut-off events. [2022-12-13 06:16:10,151 INFO L131 PetriNetUnfolder]: For 6242/6242 co-relation queries the response was YES. [2022-12-13 06:16:10,271 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. [2022-12-13 06:16:10,520 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 201 selfloop transitions, 25 changer transitions 0/237 dead transitions. [2022-12-13 06:16:10,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:10,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:16:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:16:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2022-12-13 06:16:10,521 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7329545454545454 [2022-12-13 06:16:10,522 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2022-12-13 06:16:10,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:10,777 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:11,100 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:11,101 INFO L89 Accepts]: Start accepts. Operand has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:11,102 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:11,102 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:11,102 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:11,112 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:11,113 INFO L226 LiptonReduction]: Number of co-enabled transitions 2202 [2022-12-13 06:16:11,132 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:11,133 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 33 [2022-12-13 06:16:11,133 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 237 transitions, 2310 flow [2022-12-13 06:16:11,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:11,133 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:11,133 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:11,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 06:16:11,133 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)] === [2022-12-13 06:16:11,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:11,134 INFO L85 PathProgramCache]: Analyzing trace with hash -440007926, now seen corresponding path program 1 times [2022-12-13 06:16:11,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:11,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702967278] [2022-12-13 06:16:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:11,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:11,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:11,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702967278] [2022-12-13 06:16:11,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702967278] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:11,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:11,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:16:11,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674586524] [2022-12-13 06:16:11,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:11,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:16:11,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:16:11,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:16:11,405 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:16:11,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 237 transitions, 2310 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:11,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:11,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:16:11,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:15,507 INFO L130 PetriNetUnfolder]: 35685/50340 cut-off events. [2022-12-13 06:16:15,508 INFO L131 PetriNetUnfolder]: For 6014/6014 co-relation queries the response was YES. [2022-12-13 06:16:15,613 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. [2022-12-13 06:16:15,992 INFO L137 encePairwiseOnDemand]: 35/44 looper letters, 278 selfloop transitions, 22 changer transitions 11/322 dead transitions. [2022-12-13 06:16:15,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 322 transitions, 3760 flow [2022-12-13 06:16:15,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:16:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:16:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2022-12-13 06:16:15,993 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2022-12-13 06:16:15,994 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -26 predicate places. [2022-12-13 06:16:15,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 322 transitions, 3760 flow [2022-12-13 06:16:16,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 311 transitions, 3628 flow [2022-12-13 06:16:16,509 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:16,510 INFO L89 Accepts]: Start accepts. Operand has 69 places, 311 transitions, 3628 flow [2022-12-13 06:16:16,511 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:16,511 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:16,511 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 311 transitions, 3628 flow [2022-12-13 06:16:16,523 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 311 transitions, 3628 flow [2022-12-13 06:16:16,523 INFO L226 LiptonReduction]: Number of co-enabled transitions 2660 [2022-12-13 06:16:16,536 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:16,537 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 28 [2022-12-13 06:16:16,537 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 311 transitions, 3628 flow [2022-12-13 06:16:16,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:16,538 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:16,538 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:16,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 06:16:16,538 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)] === [2022-12-13 06:16:16,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1935150920, now seen corresponding path program 1 times [2022-12-13 06:16:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321214563] [2022-12-13 06:16:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:16,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:16,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321214563] [2022-12-13 06:16:16,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321214563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:16,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:16,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:16:16,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031385697] [2022-12-13 06:16:16,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:16,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:16:16,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:16,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:16:16,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:16:16,671 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 06:16:16,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 311 transitions, 3628 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:16,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:16,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 06:16:16,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:22,920 INFO L130 PetriNetUnfolder]: 46024/65743 cut-off events. [2022-12-13 06:16:22,920 INFO L131 PetriNetUnfolder]: For 21390/21390 co-relation queries the response was YES. [2022-12-13 06:16:23,086 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. [2022-12-13 06:16:23,511 INFO L137 encePairwiseOnDemand]: 40/43 looper letters, 315 selfloop transitions, 12 changer transitions 34/394 dead transitions. [2022-12-13 06:16:23,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 394 transitions, 5355 flow [2022-12-13 06:16:23,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:16:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:16:23,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2022-12-13 06:16:23,512 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7286821705426356 [2022-12-13 06:16:23,513 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2022-12-13 06:16:23,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 394 transitions, 5355 flow [2022-12-13 06:16:23,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 360 transitions, 4877 flow [2022-12-13 06:16:24,243 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:24,243 INFO L89 Accepts]: Start accepts. Operand has 71 places, 360 transitions, 4877 flow [2022-12-13 06:16:24,245 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:24,245 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:24,245 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 360 transitions, 4877 flow [2022-12-13 06:16:24,258 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 360 transitions, 4877 flow [2022-12-13 06:16:24,258 INFO L226 LiptonReduction]: Number of co-enabled transitions 3044 [2022-12-13 06:16:24,276 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:24,277 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 34 [2022-12-13 06:16:24,277 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 360 transitions, 4877 flow [2022-12-13 06:16:24,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:24,278 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:24,278 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:24,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 06:16:24,278 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)] === [2022-12-13 06:16:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1935280655, now seen corresponding path program 1 times [2022-12-13 06:16:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:24,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771703882] [2022-12-13 06:16:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:24,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:24,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:24,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:24,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771703882] [2022-12-13 06:16:24,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771703882] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:24,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:24,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:16:24,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766271374] [2022-12-13 06:16:24,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:24,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:16:24,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:24,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:16:24,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:16:24,447 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:16:24,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 360 transitions, 4877 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:24,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:24,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:16:24,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:37,019 INFO L130 PetriNetUnfolder]: 87699/120968 cut-off events. [2022-12-13 06:16:37,019 INFO L131 PetriNetUnfolder]: For 320790/325086 co-relation queries the response was YES. [2022-12-13 06:16:37,341 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. [2022-12-13 06:16:37,919 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 428 selfloop transitions, 107 changer transitions 439/1009 dead transitions. [2022-12-13 06:16:37,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 1009 transitions, 15809 flow [2022-12-13 06:16:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:16:37,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 06:16:37,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2022-12-13 06:16:37,921 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7395348837209302 [2022-12-13 06:16:37,923 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -21 predicate places. [2022-12-13 06:16:37,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 1009 transitions, 15809 flow [2022-12-13 06:16:38,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 570 transitions, 8881 flow [2022-12-13 06:16:39,306 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:16:39,306 INFO L89 Accepts]: Start accepts. Operand has 73 places, 570 transitions, 8881 flow [2022-12-13 06:16:39,308 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:16:39,308 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:16:39,308 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 570 transitions, 8881 flow [2022-12-13 06:16:39,336 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 570 transitions, 8881 flow [2022-12-13 06:16:39,337 INFO L226 LiptonReduction]: Number of co-enabled transitions 3020 [2022-12-13 06:16:39,377 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:16:39,378 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 72 [2022-12-13 06:16:39,378 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 570 transitions, 8881 flow [2022-12-13 06:16:39,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:39,378 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:16:39,378 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:16:39,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 06:16:39,379 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)] === [2022-12-13 06:16:39,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:16:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash 773853248, now seen corresponding path program 1 times [2022-12-13 06:16:39,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:16:39,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098569026] [2022-12-13 06:16:39,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:16:39,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:16:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:16:39,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:16:39,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:16:39,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098569026] [2022-12-13 06:16:39,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098569026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:16:39,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:16:39,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:16:39,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941953779] [2022-12-13 06:16:39,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:16:39,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:16:39,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:16:39,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:16:39,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:16:39,546 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 06:16:39,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 570 transitions, 8881 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:16:39,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:16:39,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 06:16:39,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:16:58,647 INFO L130 PetriNetUnfolder]: 103725/142556 cut-off events. [2022-12-13 06:16:58,647 INFO L131 PetriNetUnfolder]: For 462552/466729 co-relation queries the response was YES. [2022-12-13 06:16:59,031 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. [2022-12-13 06:16:59,542 INFO L137 encePairwiseOnDemand]: 40/43 looper letters, 593 selfloop transitions, 23 changer transitions 80/728 dead transitions. [2022-12-13 06:16:59,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 728 transitions, 12817 flow [2022-12-13 06:16:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:16:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:16:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2022-12-13 06:16:59,544 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7441860465116279 [2022-12-13 06:16:59,545 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -21 predicate places. [2022-12-13 06:16:59,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 728 transitions, 12817 flow [2022-12-13 06:16:59,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 648 transitions, 11377 flow [2022-12-13 06:17:01,003 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:17:01,003 INFO L89 Accepts]: Start accepts. Operand has 75 places, 648 transitions, 11377 flow [2022-12-13 06:17:01,006 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:17:01,006 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:17:01,006 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 648 transitions, 11377 flow [2022-12-13 06:17:01,036 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 648 transitions, 11377 flow [2022-12-13 06:17:01,037 INFO L226 LiptonReduction]: Number of co-enabled transitions 3238 [2022-12-13 06:17:01,080 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:17:01,081 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 78 [2022-12-13 06:17:01,081 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 648 transitions, 11377 flow [2022-12-13 06:17:01,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:17:01,081 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:17:01,081 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:17:01,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 06:17:01,082 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)] === [2022-12-13 06:17:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:17:01,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1117971377, now seen corresponding path program 1 times [2022-12-13 06:17:01,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:17:01,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999101468] [2022-12-13 06:17:01,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:17:01,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:17:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:17:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:17:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:17:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999101468] [2022-12-13 06:17:01,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999101468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:17:01,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:17:01,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 06:17:01,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834801306] [2022-12-13 06:17:01,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:17:01,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 06:17:01,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:17:01,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 06:17:01,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 06:17:01,264 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:17:01,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 648 transitions, 11377 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:17:01,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:17:01,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:17:01,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:17:16,869 INFO L130 PetriNetUnfolder]: 83464/122008 cut-off events. [2022-12-13 06:17:16,870 INFO L131 PetriNetUnfolder]: For 423603/428812 co-relation queries the response was YES. [2022-12-13 06:17:17,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039139 conditions, 122008 events. 83464/122008 cut-off events. For 423603/428812 co-relation queries the response was YES. Maximal size of possible extension queue 5615. Compared 951559 event pairs, 7387 based on Foata normal form. 11364/112752 useless extension candidates. Maximal degree in co-relation 1039103. Up to 110183 conditions per place. [2022-12-13 06:17:17,658 INFO L137 encePairwiseOnDemand]: 28/43 looper letters, 486 selfloop transitions, 207 changer transitions 528/1254 dead transitions. [2022-12-13 06:17:17,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 1254 transitions, 24577 flow [2022-12-13 06:17:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 06:17:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 06:17:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 195 transitions. [2022-12-13 06:17:17,659 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7558139534883721 [2022-12-13 06:17:17,660 INFO L295 CegarLoopForPetriNet]: 96 programPoint places, -16 predicate places. [2022-12-13 06:17:17,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 1254 transitions, 24577 flow [2022-12-13 06:17:17,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 726 transitions, 14129 flow [2022-12-13 06:17:18,921 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:17:18,921 INFO L89 Accepts]: Start accepts. Operand has 78 places, 726 transitions, 14129 flow [2022-12-13 06:17:18,925 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:17:18,925 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:17:18,926 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 726 transitions, 14129 flow [2022-12-13 06:17:18,991 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 726 transitions, 14129 flow [2022-12-13 06:17:18,991 INFO L226 LiptonReduction]: Number of co-enabled transitions 3568 [2022-12-13 06:17:19,027 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:17:19,028 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 107 [2022-12-13 06:17:19,028 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 726 transitions, 14129 flow [2022-12-13 06:17:19,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:17:19,028 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:17:19,028 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:17:19,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 06:17:19,029 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 06:17:19,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:17:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1877032646, now seen corresponding path program 1 times [2022-12-13 06:17:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:17:19,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621755141] [2022-12-13 06:17:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:17:19,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:17:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:17:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 06:17:19,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:17:19,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621755141] [2022-12-13 06:17:19,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621755141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:17:19,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:17:19,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:17:19,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608503550] [2022-12-13 06:17:19,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:17:19,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:17:19,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:17:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:17:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:17:19,211 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 06:17:19,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 726 transitions, 14129 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:17:19,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:17:19,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 06:17:19,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand