/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:25:06,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:25:06,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:25:06,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:25:06,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:25:06,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:25:06,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:25:06,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:25:06,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:25:06,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:25:06,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:25:06,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:25:06,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:25:06,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:25:06,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:25:06,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:25:06,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:25:06,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:25:06,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:25:06,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:25:06,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:25:06,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:25:06,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:25:06,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:25:06,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:25:06,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:25:06,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:25:06,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:25:06,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:25:06,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:25:06,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:25:06,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:25:06,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:25:06,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:25:06,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:25:06,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:25:06,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:25:06,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:25:06,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:25:06,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:25:06,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:25:06,655 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 [2022-12-06 02:25:06,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:25:06,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:25:06,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:25:06,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:25:06,699 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:25:06,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:25:06,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:25:06,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:25:06,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:25:06,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:25:06,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:25:06,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:25:06,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:25:06,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:25:06,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:25:06,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:25:06,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:25:06,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:25:06,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:25:07,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:25:07,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:25:07,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:25:07,042 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:25:07,042 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:25:07,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-06 02:25:08,185 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:25:08,372 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:25:08,373 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c [2022-12-06 02:25:08,384 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83dc729c/78fdbb5128d9413bbba535e95dd58bd0/FLAG7d0cbcf70 [2022-12-06 02:25:08,394 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a83dc729c/78fdbb5128d9413bbba535e95dd58bd0 [2022-12-06 02:25:08,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:25:08,397 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:25:08,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:25:08,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:25:08,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:25:08,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182ad8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08, skipping insertion in model container [2022-12-06 02:25:08,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:25:08,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:25:08,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,539 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,544 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,548 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,553 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,562 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,563 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-12-06 02:25:08,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:25:08,601 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:25:08,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,625 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,627 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,628 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,629 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,646 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,655 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,656 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,657 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:08,658 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:08,672 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-7.wvr.c[4837,4850] [2022-12-06 02:25:08,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:25:08,695 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:25:08,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08 WrapperNode [2022-12-06 02:25:08,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:25:08,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:25:08,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:25:08,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:25:08,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,763 INFO L138 Inliner]: procedures = 26, calls = 115, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 318 [2022-12-06 02:25:08,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:25:08,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:25:08,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:25:08,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:25:08,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,810 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:25:08,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:25:08,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:25:08,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:25:08,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (1/1) ... [2022-12-06 02:25:08,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:25:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:25:08,852 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) [2022-12-06 02:25:08,878 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 [2022-12-06 02:25:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:25:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:25:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:25:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:25:08,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:25:08,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:25:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:25:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:25:08,898 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:25:08,898 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:25:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 02:25:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 02:25:08,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:25:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-06 02:25:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-06 02:25:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-06 02:25:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-06 02:25:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-06 02:25:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-06 02:25:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:25:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:25:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:25:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:25:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:25:08,910 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 02:25:09,008 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:25:09,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:25:09,380 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:25:09,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:25:09,507 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 02:25:09,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:25:09 BoogieIcfgContainer [2022-12-06 02:25:09,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:25:09,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:25:09,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:25:09,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:25:09,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:25:08" (1/3) ... [2022-12-06 02:25:09,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec52242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:25:09, skipping insertion in model container [2022-12-06 02:25:09,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:08" (2/3) ... [2022-12-06 02:25:09,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec52242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:25:09, skipping insertion in model container [2022-12-06 02:25:09,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:25:09" (3/3) ... [2022-12-06 02:25:09,517 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2022-12-06 02:25:09,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:25:09,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:25:09,533 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:25:09,639 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-12-06 02:25:09,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 204 transitions, 464 flow [2022-12-06 02:25:09,771 INFO L130 PetriNetUnfolder]: 2/197 cut-off events. [2022-12-06 02:25:09,771 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 02:25:09,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 197 events. 2/197 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 87 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-06 02:25:09,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 204 transitions, 464 flow [2022-12-06 02:25:09,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 179 transitions, 400 flow [2022-12-06 02:25:09,786 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:25:09,812 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-06 02:25:09,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 179 transitions, 400 flow [2022-12-06 02:25:09,895 INFO L130 PetriNetUnfolder]: 2/179 cut-off events. [2022-12-06 02:25:09,895 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 02:25:09,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 179 events. 2/179 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-06 02:25:09,903 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 179 transitions, 400 flow [2022-12-06 02:25:09,903 INFO L188 LiptonReduction]: Number of co-enabled transitions 4182 [2022-12-06 02:25:21,164 INFO L203 LiptonReduction]: Total number of compositions: 135 [2022-12-06 02:25:21,178 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:25:21,184 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;@3ad856bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:25:21,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-06 02:25:21,194 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-12-06 02:25:21,194 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 02:25:21,194 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:25:21,195 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:25:21,195 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-06 02:25:21,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:25:21,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1030329122, now seen corresponding path program 1 times [2022-12-06 02:25:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:25:21,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862508252] [2022-12-06 02:25:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:25:21,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:25:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:25:23,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:25:23,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:25:23,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862508252] [2022-12-06 02:25:23,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862508252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:25:23,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:25:23,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 02:25:23,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563383632] [2022-12-06 02:25:23,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:25:23,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 02:25:23,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:25:23,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 02:25:23,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-06 02:25:23,502 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-06 02:25:23,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 44 transitions, 130 flow. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2022-12-06 02:25:23,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:25:23,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-06 02:25:23,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:25:30,722 INFO L130 PetriNetUnfolder]: 68867/86768 cut-off events. [2022-12-06 02:25:30,723 INFO L131 PetriNetUnfolder]: For 6627/6627 co-relation queries the response was YES. [2022-12-06 02:25:31,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178818 conditions, 86768 events. 68867/86768 cut-off events. For 6627/6627 co-relation queries the response was YES. Maximal size of possible extension queue 1977. Compared 421900 event pairs, 8446 based on Foata normal form. 2/86770 useless extension candidates. Maximal degree in co-relation 177045. Up to 51938 conditions per place. [2022-12-06 02:25:31,495 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 104 selfloop transitions, 28 changer transitions 51/183 dead transitions. [2022-12-06 02:25:31,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 183 transitions, 852 flow [2022-12-06 02:25:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-06 02:25:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-06 02:25:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 185 transitions. [2022-12-06 02:25:31,511 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4671717171717172 [2022-12-06 02:25:31,514 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 8 predicate places. [2022-12-06 02:25:31,518 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:25:31,518 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 183 transitions, 852 flow [2022-12-06 02:25:31,936 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 183 transitions, 852 flow [2022-12-06 02:25:31,936 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:25:31,959 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:25:31,961 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 446 [2022-12-06 02:25:31,961 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 183 transitions, 852 flow [2022-12-06 02:25:31,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2022-12-06 02:25:31,962 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:25:31,962 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:25:31,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:25:31,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-06 02:25:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:25:31,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1183584736, now seen corresponding path program 2 times [2022-12-06 02:25:31,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:25:31,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143016945] [2022-12-06 02:25:31,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:25:31,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:25:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:25:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:25:33,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:25:33,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143016945] [2022-12-06 02:25:33,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143016945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:25:33,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:25:33,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-06 02:25:33,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155901156] [2022-12-06 02:25:33,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:25:33,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-06 02:25:33,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:25:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-06 02:25:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-12-06 02:25:33,700 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-06 02:25:33,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 183 transitions, 852 flow. Second operand has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 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) [2022-12-06 02:25:33,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:25:33,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-06 02:25:33,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:25:47,036 INFO L130 PetriNetUnfolder]: 132680/169416 cut-off events. [2022-12-06 02:25:47,036 INFO L131 PetriNetUnfolder]: For 18655/18655 co-relation queries the response was YES. [2022-12-06 02:25:47,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520162 conditions, 169416 events. 132680/169416 cut-off events. For 18655/18655 co-relation queries the response was YES. Maximal size of possible extension queue 4240. Compared 936406 event pairs, 9347 based on Foata normal form. 5/169421 useless extension candidates. Maximal degree in co-relation 514615. Up to 122375 conditions per place. [2022-12-06 02:25:48,018 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 285 selfloop transitions, 443 changer transitions 621/1349 dead transitions. [2022-12-06 02:25:48,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 1349 transitions, 8916 flow [2022-12-06 02:25:48,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-06 02:25:48,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-12-06 02:25:48,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 707 transitions. [2022-12-06 02:25:48,022 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5540752351097179 [2022-12-06 02:25:48,023 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 36 predicate places. [2022-12-06 02:25:48,024 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:25:48,024 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 1349 transitions, 8916 flow [2022-12-06 02:25:48,999 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 1349 transitions, 8916 flow [2022-12-06 02:25:48,999 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:25:49,047 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:25:49,048 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1025 [2022-12-06 02:25:49,048 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 1349 transitions, 8916 flow [2022-12-06 02:25:49,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 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) [2022-12-06 02:25:49,048 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:25:49,048 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:25:49,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:25:49,049 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-06 02:25:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:25:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1038012180, now seen corresponding path program 3 times [2022-12-06 02:25:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:25:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950707003] [2022-12-06 02:25:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:25:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:25:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:25:50,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:25:50,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:25:50,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950707003] [2022-12-06 02:25:50,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950707003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:25:50,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:25:50,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-06 02:25:50,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842376952] [2022-12-06 02:25:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:25:50,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-06 02:25:50,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:25:50,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-06 02:25:50,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-06 02:25:50,123 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-06 02:25:50,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 1349 transitions, 8916 flow. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 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) [2022-12-06 02:25:50,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:25:50,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-06 02:25:50,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:26:15,472 INFO L130 PetriNetUnfolder]: 183046/234865 cut-off events. [2022-12-06 02:26:15,472 INFO L131 PetriNetUnfolder]: For 30241/30241 co-relation queries the response was YES. [2022-12-06 02:26:16,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956576 conditions, 234865 events. 183046/234865 cut-off events. For 30241/30241 co-relation queries the response was YES. Maximal size of possible extension queue 6110. Compared 1367420 event pairs, 17187 based on Foata normal form. 3/234868 useless extension candidates. Maximal degree in co-relation 946346. Up to 167554 conditions per place. [2022-12-06 02:26:16,610 INFO L137 encePairwiseOnDemand]: 27/44 looper letters, 317 selfloop transitions, 504 changer transitions 1505/2326 dead transitions. [2022-12-06 02:26:16,610 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 2326 transitions, 20084 flow [2022-12-06 02:26:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-12-06 02:26:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-12-06 02:26:16,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 759 transitions. [2022-12-06 02:26:16,613 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.575 [2022-12-06 02:26:16,613 INFO L294 CegarLoopForPetriNet]: 66 programPoint places, 65 predicate places. [2022-12-06 02:26:16,614 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:26:16,614 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 2326 transitions, 20084 flow [2022-12-06 02:26:17,972 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 2326 transitions, 20084 flow [2022-12-06 02:26:17,973 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:26:18,033 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:26:18,035 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1422 [2022-12-06 02:26:18,035 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 2326 transitions, 20084 flow [2022-12-06 02:26:18,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 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) [2022-12-06 02:26:18,035 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:26:18,035 INFO L213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 02:26:18,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 02:26:18,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2022-12-06 02:26:18,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:26:18,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1647345294, now seen corresponding path program 4 times [2022-12-06 02:26:18,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:26:18,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305862883] [2022-12-06 02:26:18,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:26:18,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:26:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:26:18,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 02:26:18,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:26:18,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305862883] [2022-12-06 02:26:18,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305862883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:26:18,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:26:18,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 02:26:18,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814022207] [2022-12-06 02:26:18,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:26:18,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 02:26:18,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:26:18,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 02:26:18,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 02:26:18,390 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 44 [2022-12-06 02:26:18,391 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 2326 transitions, 20084 flow. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 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) [2022-12-06 02:26:18,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:26:18,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 44 [2022-12-06 02:26:18,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand