/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/mix026.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 06:11:47,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 06:11:47,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 06:11:47,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 06:11:47,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 06:11:47,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 06:11:47,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 06:11:47,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 06:11:47,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 06:11:47,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 06:11:47,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 06:11:47,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 06:11:47,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 06:11:47,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 06:11:47,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 06:11:47,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 06:11:47,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 06:11:47,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 06:11:47,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 06:11:47,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 06:11:47,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 06:11:47,569 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 06:11:47,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 06:11:47,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 06:11:47,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 06:11:47,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 06:11:47,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 06:11:47,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 06:11:47,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 06:11:47,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 06:11:47,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 06:11:47,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 06:11:47,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 06:11:47,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 06:11:47,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 06:11:47,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 06:11:47,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 06:11:47,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 06:11:47,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 06:11:47,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 06:11:47,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 06:11:47,592 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 06:11:47,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 06:11:47,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 06:11:47,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 06:11:47,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 06:11:47,618 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 06:11:47,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 06:11:47,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 06:11:47,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 06:11:47,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:11:47,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 06:11:47,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 06:11:47,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 06:11:47,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 06:11:47,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 06:11:47,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 06:11:47,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-13 06:11:47,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 06:11:47,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 06:11:47,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 06:11:47,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 06:11:47,972 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 06:11:47,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2022-12-13 06:11:48,932 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 06:11:49,174 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 06:11:49,174 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026.oepc.i [2022-12-13 06:11:49,188 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d0799d2f/880fed1dc7ea4494a781d5c2dfbab7b9/FLAGf7cc28597 [2022-12-13 06:11:49,205 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d0799d2f/880fed1dc7ea4494a781d5c2dfbab7b9 [2022-12-13 06:11:49,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 06:11:49,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 06:11:49,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 06:11:49,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 06:11:49,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 06:11:49,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a3f0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49, skipping insertion in model container [2022-12-13 06:11:49,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 06:11:49,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 06:11:49,399 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/mix026.oepc.i[945,958] [2022-12-13 06:11:49,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,542 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,581 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,589 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:11:49,599 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 06:11:49,606 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/mix026.oepc.i[945,958] [2022-12-13 06:11:49,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,637 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 06:11:49,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 06:11:49,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 06:11:49,690 INFO L208 MainTranslator]: Completed translation [2022-12-13 06:11:49,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49 WrapperNode [2022-12-13 06:11:49,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 06:11:49,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 06:11:49,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 06:11:49,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 06:11:49,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,751 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-12-13 06:11:49,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 06:11:49,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 06:11:49,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 06:11:49,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 06:11:49,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 06:11:49,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 06:11:49,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 06:11:49,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 06:11:49,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (1/1) ... [2022-12-13 06:11:49,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 06:11:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 06:11:49,816 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 06:11:49,855 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 06:11:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 06:11:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 06:11:49,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 06:11:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 06:11:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 06:11:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 06:11:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 06:11:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 06:11:49,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 06:11:49,864 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 06:11:50,006 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 06:11:50,007 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 06:11:50,309 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 06:11:50,426 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 06:11:50,427 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 06:11:50,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:11:50 BoogieIcfgContainer [2022-12-13 06:11:50,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 06:11:50,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 06:11:50,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 06:11:50,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 06:11:50,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:11:49" (1/3) ... [2022-12-13 06:11:50,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4261186a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:11:50, skipping insertion in model container [2022-12-13 06:11:50,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:11:49" (2/3) ... [2022-12-13 06:11:50,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4261186a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:11:50, skipping insertion in model container [2022-12-13 06:11:50,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:11:50" (3/3) ... [2022-12-13 06:11:50,435 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2022-12-13 06:11:50,447 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 06:11:50,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 06:11:50,450 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 06:11:50,508 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 06:11:50,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 282 flow [2022-12-13 06:11:50,577 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-13 06:11:50,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:11:50,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-13 06:11:50,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 131 transitions, 282 flow [2022-12-13 06:11:50,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 127 transitions, 266 flow [2022-12-13 06:11:50,588 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:11:50,599 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-13 06:11:50,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 127 transitions, 266 flow [2022-12-13 06:11:50,629 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-13 06:11:50,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:11:50,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-12-13 06:11:50,635 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 127 transitions, 266 flow [2022-12-13 06:11:50,635 INFO L226 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-13 06:11:55,849 INFO L241 LiptonReduction]: Total number of compositions: 100 [2022-12-13 06:11:55,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 06:11:55,865 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;@4cb80f89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 06:11:55,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 06:11:55,867 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-13 06:11:55,867 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 06:11:55,867 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:11:55,868 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 06:11:55,868 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 06:11:55,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:11:55,871 INFO L85 PathProgramCache]: Analyzing trace with hash 565729, now seen corresponding path program 1 times [2022-12-13 06:11:55,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:11:55,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924341618] [2022-12-13 06:11:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:11:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:11:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:11:56,148 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 06:11:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:11:56,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924341618] [2022-12-13 06:11:56,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924341618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:11:56,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:11:56,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:11:56,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181416525] [2022-12-13 06:11:56,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:11:56,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:11:56,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:11:56,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:11:56,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:11:56,170 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 82 [2022-12-13 06:11:56,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 176 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 06:11:56,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:11:56,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 82 [2022-12-13 06:11:56,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:06,491 INFO L130 PetriNetUnfolder]: 66790/97374 cut-off events. [2022-12-13 06:12:06,492 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 06:12:06,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185663 conditions, 97374 events. 66790/97374 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 4514. Compared 788065 event pairs, 9970 based on Foata normal form. 0/63342 useless extension candidates. Maximal degree in co-relation 185651. Up to 73765 conditions per place. [2022-12-13 06:12:07,133 INFO L137 encePairwiseOnDemand]: 78/82 looper letters, 48 selfloop transitions, 2 changer transitions 71/137 dead transitions. [2022-12-13 06:12:07,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 137 transitions, 535 flow [2022-12-13 06:12:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:12:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:12:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2022-12-13 06:12:07,175 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7073170731707317 [2022-12-13 06:12:07,179 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2022-12-13 06:12:07,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 137 transitions, 535 flow [2022-12-13 06:12:07,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 66 transitions, 253 flow [2022-12-13 06:12:07,963 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:07,964 INFO L89 Accepts]: Start accepts. Operand has 59 places, 66 transitions, 253 flow [2022-12-13 06:12:07,969 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:07,969 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:07,970 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 66 transitions, 253 flow [2022-12-13 06:12:07,978 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 66 transitions, 253 flow [2022-12-13 06:12:07,978 INFO L226 LiptonReduction]: Number of co-enabled transitions 1066 [2022-12-13 06:12:17,495 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:17,498 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 9535 [2022-12-13 06:12:17,499 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 66 transitions, 253 flow [2022-12-13 06:12:17,499 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 06:12:17,499 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:17,499 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:12:17,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 06:12:17,504 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 06:12:17,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:17,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1290599711, now seen corresponding path program 1 times [2022-12-13 06:12:17,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:17,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426615354] [2022-12-13 06:12:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:17,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:17,970 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 06:12:17,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:17,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426615354] [2022-12-13 06:12:17,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426615354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:17,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:17,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:12:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386629654] [2022-12-13 06:12:17,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:17,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:12:17,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:12:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:12:17,973 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 44 [2022-12-13 06:12:17,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 66 transitions, 253 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 06:12:17,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:17,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 44 [2022-12-13 06:12:17,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:22,791 INFO L130 PetriNetUnfolder]: 39811/55359 cut-off events. [2022-12-13 06:12:22,792 INFO L131 PetriNetUnfolder]: For 7413/7413 co-relation queries the response was YES. [2022-12-13 06:12:22,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152338 conditions, 55359 events. 39811/55359 cut-off events. For 7413/7413 co-relation queries the response was YES. Maximal size of possible extension queue 1830. Compared 348362 event pairs, 7761 based on Foata normal form. 1016/47477 useless extension candidates. Maximal degree in co-relation 152323. Up to 37529 conditions per place. [2022-12-13 06:12:23,176 INFO L137 encePairwiseOnDemand]: 36/44 looper letters, 93 selfloop transitions, 9 changer transitions 2/115 dead transitions. [2022-12-13 06:12:23,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 115 transitions, 662 flow [2022-12-13 06:12:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:12:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:12:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2022-12-13 06:12:23,196 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2022-12-13 06:12:23,197 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -34 predicate places. [2022-12-13 06:12:23,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 115 transitions, 662 flow [2022-12-13 06:12:23,354 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 113 transitions, 654 flow [2022-12-13 06:12:23,921 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:23,922 INFO L89 Accepts]: Start accepts. Operand has 60 places, 113 transitions, 654 flow [2022-12-13 06:12:23,923 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:23,923 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:23,923 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 113 transitions, 654 flow [2022-12-13 06:12:23,929 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 113 transitions, 654 flow [2022-12-13 06:12:23,929 INFO L226 LiptonReduction]: Number of co-enabled transitions 1258 [2022-12-13 06:12:23,960 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:23,967 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 46 [2022-12-13 06:12:23,969 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 113 transitions, 654 flow [2022-12-13 06:12:23,969 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 06:12:23,969 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:23,969 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:12:23,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 06:12:23,970 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 06:12:23,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:23,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1353883275, now seen corresponding path program 1 times [2022-12-13 06:12:23,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:23,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776443820] [2022-12-13 06:12:23,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:23,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:24,204 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 06:12:24,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:24,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776443820] [2022-12-13 06:12:24,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776443820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:24,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:24,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 06:12:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844062586] [2022-12-13 06:12:24,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:24,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:12:24,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:12:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:12:24,231 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 06:12:24,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 113 transitions, 654 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 06:12:24,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:24,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 06:12:24,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:28,161 INFO L130 PetriNetUnfolder]: 29423/41383 cut-off events. [2022-12-13 06:12:28,162 INFO L131 PetriNetUnfolder]: For 11444/11444 co-relation queries the response was YES. [2022-12-13 06:12:28,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150981 conditions, 41383 events. 29423/41383 cut-off events. For 11444/11444 co-relation queries the response was YES. Maximal size of possible extension queue 1367. Compared 254440 event pairs, 2005 based on Foata normal form. 408/34969 useless extension candidates. Maximal degree in co-relation 150963. Up to 29621 conditions per place. [2022-12-13 06:12:28,486 INFO L137 encePairwiseOnDemand]: 40/43 looper letters, 139 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2022-12-13 06:12:28,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:12:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:12:28,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2022-12-13 06:12:28,489 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2022-12-13 06:12:28,504 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -33 predicate places. [2022-12-13 06:12:28,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,727 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,972 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:28,972 INFO L89 Accepts]: Start accepts. Operand has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,973 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:28,973 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:28,973 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,977 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:28,977 INFO L226 LiptonReduction]: Number of co-enabled transitions 1622 [2022-12-13 06:12:29,010 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:29,011 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 39 [2022-12-13 06:12:29,012 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 159 transitions, 1214 flow [2022-12-13 06:12:29,012 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 06:12:29,012 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:29,012 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:12:29,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 06:12:29,015 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 06:12:29,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash -979294994, now seen corresponding path program 1 times [2022-12-13 06:12:29,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:29,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560931479] [2022-12-13 06:12:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:29,246 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 06:12:29,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:29,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560931479] [2022-12-13 06:12:29,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560931479] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:29,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:29,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 06:12:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949895570] [2022-12-13 06:12:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:29,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 06:12:29,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 06:12:29,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 06:12:29,248 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:12:29,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 159 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 06:12:29,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:29,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:12:29,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:35,365 INFO L130 PetriNetUnfolder]: 48112/65594 cut-off events. [2022-12-13 06:12:35,365 INFO L131 PetriNetUnfolder]: For 68774/69567 co-relation queries the response was YES. [2022-12-13 06:12:35,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285071 conditions, 65594 events. 48112/65594 cut-off events. For 68774/69567 co-relation queries the response was YES. Maximal size of possible extension queue 2221. Compared 399051 event pairs, 5738 based on Foata normal form. 717/56735 useless extension candidates. Maximal degree in co-relation 285050. Up to 57589 conditions per place. [2022-12-13 06:12:35,791 INFO L137 encePairwiseOnDemand]: 29/43 looper letters, 205 selfloop transitions, 53 changer transitions 0/273 dead transitions. [2022-12-13 06:12:35,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 06:12:35,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 06:12:35,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2022-12-13 06:12:35,793 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7209302325581395 [2022-12-13 06:12:35,793 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -31 predicate places. [2022-12-13 06:12:35,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,411 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:36,412 INFO L89 Accepts]: Start accepts. Operand has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,413 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:36,413 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:36,413 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,420 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,420 INFO L226 LiptonReduction]: Number of co-enabled transitions 1744 [2022-12-13 06:12:36,437 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:36,438 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-13 06:12:36,438 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 273 transitions, 2639 flow [2022-12-13 06:12:36,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 06:12:36,438 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:36,438 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:12:36,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 06:12:36,439 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 06:12:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:36,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1676421045, now seen corresponding path program 1 times [2022-12-13 06:12:36,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:36,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885984802] [2022-12-13 06:12:36,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:36,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:36,577 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 06:12:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:36,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885984802] [2022-12-13 06:12:36,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885984802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:36,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:36,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:12:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763229627] [2022-12-13 06:12:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:36,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:12:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:36,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:12:36,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:12:36,580 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:12:36,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 273 transitions, 2639 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:12:36,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:36,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:12:36,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:40,025 INFO L130 PetriNetUnfolder]: 30453/43757 cut-off events. [2022-12-13 06:12:40,025 INFO L131 PetriNetUnfolder]: For 60601/62042 co-relation queries the response was YES. [2022-12-13 06:12:40,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229848 conditions, 43757 events. 30453/43757 cut-off events. For 60601/62042 co-relation queries the response was YES. Maximal size of possible extension queue 1658. Compared 284595 event pairs, 2469 based on Foata normal form. 2419/39875 useless extension candidates. Maximal degree in co-relation 229824. Up to 37856 conditions per place. [2022-12-13 06:12:40,420 INFO L137 encePairwiseOnDemand]: 29/43 looper letters, 248 selfloop transitions, 105 changer transitions 0/368 dead transitions. [2022-12-13 06:12:40,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 06:12:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 06:12:40,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2022-12-13 06:12:40,421 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-12-13 06:12:40,422 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -28 predicate places. [2022-12-13 06:12:40,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:40,674 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:41,037 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:41,037 INFO L89 Accepts]: Start accepts. Operand has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:41,039 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:41,039 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:41,040 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:41,059 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:41,059 INFO L226 LiptonReduction]: Number of co-enabled transitions 2212 [2022-12-13 06:12:41,084 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:41,085 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 48 [2022-12-13 06:12:41,085 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 368 transitions, 4286 flow [2022-12-13 06:12:41,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 06:12:41,086 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:41,086 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] [2022-12-13 06:12:41,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 06:12:41,086 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 06:12:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1828862407, now seen corresponding path program 1 times [2022-12-13 06:12:41,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:41,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236611140] [2022-12-13 06:12:41,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:41,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:41,672 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 06:12:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:41,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236611140] [2022-12-13 06:12:41,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236611140] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:41,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:41,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 06:12:41,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738638979] [2022-12-13 06:12:41,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:41,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 06:12:41,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 06:12:41,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 06:12:41,674 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:12:41,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 368 transitions, 4286 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 06:12:41,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:41,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:12:41,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:12:53,797 INFO L130 PetriNetUnfolder]: 55087/79045 cut-off events. [2022-12-13 06:12:53,797 INFO L131 PetriNetUnfolder]: For 122413/124998 co-relation queries the response was YES. [2022-12-13 06:12:54,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481236 conditions, 79045 events. 55087/79045 cut-off events. For 122413/124998 co-relation queries the response was YES. Maximal size of possible extension queue 3285. Compared 556177 event pairs, 3782 based on Foata normal form. 1839/68735 useless extension candidates. Maximal degree in co-relation 481209. Up to 69535 conditions per place. [2022-12-13 06:12:54,745 INFO L137 encePairwiseOnDemand]: 30/43 looper letters, 613 selfloop transitions, 122 changer transitions 14/768 dead transitions. [2022-12-13 06:12:54,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 768 transitions, 10474 flow [2022-12-13 06:12:54,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 06:12:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 06:12:54,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 305 transitions. [2022-12-13 06:12:54,748 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7881136950904393 [2022-12-13 06:12:54,748 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -20 predicate places. [2022-12-13 06:12:54,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 768 transitions, 10474 flow [2022-12-13 06:12:55,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 754 transitions, 10278 flow [2022-12-13 06:12:55,913 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:12:55,913 INFO L89 Accepts]: Start accepts. Operand has 75 places, 754 transitions, 10278 flow [2022-12-13 06:12:55,917 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:12:55,917 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:12:55,918 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 754 transitions, 10278 flow [2022-12-13 06:12:55,974 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 754 transitions, 10278 flow [2022-12-13 06:12:55,975 INFO L226 LiptonReduction]: Number of co-enabled transitions 4230 [2022-12-13 06:12:56,006 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:12:56,007 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 94 [2022-12-13 06:12:56,007 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 754 transitions, 10278 flow [2022-12-13 06:12:56,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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 06:12:56,008 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:12:56,008 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] [2022-12-13 06:12:56,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 06:12:56,008 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 06:12:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:12:56,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1062215411, now seen corresponding path program 1 times [2022-12-13 06:12:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:12:56,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800086853] [2022-12-13 06:12:56,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:12:56,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:12:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:12:56,406 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 06:12:56,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:12:56,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800086853] [2022-12-13 06:12:56,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800086853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:12:56,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:12:56,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 06:12:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211083178] [2022-12-13 06:12:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:12:56,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 06:12:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:12:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 06:12:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 06:12:56,409 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 43 [2022-12-13 06:12:56,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 754 transitions, 10278 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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 06:12:56,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:12:56,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 43 [2022-12-13 06:12:56,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 06:13:04,506 INFO L130 PetriNetUnfolder]: 30572/45972 cut-off events. [2022-12-13 06:13:04,507 INFO L131 PetriNetUnfolder]: For 107781/111213 co-relation queries the response was YES. [2022-12-13 06:13:04,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320249 conditions, 45972 events. 30572/45972 cut-off events. For 107781/111213 co-relation queries the response was YES. Maximal size of possible extension queue 1629. Compared 327938 event pairs, 677 based on Foata normal form. 4928/43551 useless extension candidates. Maximal degree in co-relation 320219. Up to 39562 conditions per place. [2022-12-13 06:13:04,951 INFO L137 encePairwiseOnDemand]: 29/43 looper letters, 445 selfloop transitions, 303 changer transitions 41/826 dead transitions. [2022-12-13 06:13:04,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 826 transitions, 12841 flow [2022-12-13 06:13:04,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 06:13:04,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 06:13:04,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 163 transitions. [2022-12-13 06:13:04,953 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7581395348837209 [2022-12-13 06:13:04,954 INFO L295 CegarLoopForPetriNet]: 95 programPoint places, -16 predicate places. [2022-12-13 06:13:04,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 826 transitions, 12841 flow [2022-12-13 06:13:05,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 785 transitions, 12185 flow [2022-12-13 06:13:05,686 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 06:13:05,687 INFO L89 Accepts]: Start accepts. Operand has 79 places, 785 transitions, 12185 flow [2022-12-13 06:13:05,693 INFO L95 Accepts]: Finished accepts. [2022-12-13 06:13:05,693 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 06:13:05,693 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 785 transitions, 12185 flow [2022-12-13 06:13:05,775 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 785 transitions, 12185 flow [2022-12-13 06:13:05,775 INFO L226 LiptonReduction]: Number of co-enabled transitions 4182 [2022-12-13 06:13:05,794 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 06:13:05,795 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 109 [2022-12-13 06:13:05,795 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 785 transitions, 12185 flow [2022-12-13 06:13:05,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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 06:13:05,795 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 06:13:05,795 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 06:13:05,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 06:13:05,796 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 06:13:05,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 06:13:05,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1022794873, now seen corresponding path program 1 times [2022-12-13 06:13:05,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 06:13:05,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424087407] [2022-12-13 06:13:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 06:13:05,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 06:13:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 06:13:06,252 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 06:13:06,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 06:13:06,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424087407] [2022-12-13 06:13:06,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424087407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 06:13:06,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 06:13:06,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 06:13:06,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275578070] [2022-12-13 06:13:06,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 06:13:06,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 06:13:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 06:13:06,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 06:13:06,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 06:13:06,255 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2022-12-13 06:13:06,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 785 transitions, 12185 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 06:13:06,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 06:13:06,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2022-12-13 06:13:06,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand