/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-8.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 02:25:20,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 02:25:20,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 02:25:20,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 02:25:20,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 02:25:20,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 02:25:20,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 02:25:20,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 02:25:20,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 02:25:20,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 02:25:20,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 02:25:20,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 02:25:20,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 02:25:20,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 02:25:20,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 02:25:20,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 02:25:20,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 02:25:20,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 02:25:20,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 02:25:20,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 02:25:20,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 02:25:20,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 02:25:20,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 02:25:20,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 02:25:20,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 02:25:20,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 02:25:20,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 02:25:20,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 02:25:20,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 02:25:20,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 02:25:20,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 02:25:20,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 02:25:20,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 02:25:20,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 02:25:20,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 02:25:20,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 02:25:20,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 02:25:20,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 02:25:20,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 02:25:20,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 02:25:20,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 02:25:20,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf [2022-12-06 02:25:20,700 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 02:25:20,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 02:25:20,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 02:25:20,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 02:25:20,702 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 02:25:20,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 02:25:20,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 02:25:20,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 02:25:20,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 02:25:20,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 02:25:20,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 02:25:20,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:25:20,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 02:25:20,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 02:25:20,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 02:25:20,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 02:25:20,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 02:25:20,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 02:25:20,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 02:25:21,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 02:25:21,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 02:25:21,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 02:25:21,013 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 02:25:21,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-06 02:25:22,009 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 02:25:22,194 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 02:25:22,194 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-8.wvr.c [2022-12-06 02:25:22,199 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3110e2b9/4a47963aa72e4d7abdfeb9dd526e6654/FLAG44e544851 [2022-12-06 02:25:22,212 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3110e2b9/4a47963aa72e4d7abdfeb9dd526e6654 [2022-12-06 02:25:22,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 02:25:22,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 02:25:22,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 02:25:22,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 02:25:22,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 02:25:22,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72daf93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22, skipping insertion in model container [2022-12-06 02:25:22,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 02:25:22,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 02:25:22,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,401 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,402 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,403 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,404 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,405 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,407 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,418 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,422 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,445 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-8.wvr.c[5274,5287] [2022-12-06 02:25:22,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:25:22,460 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 02:25:22,472 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,473 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,474 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,475 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,476 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,477 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,478 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,517 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,523 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 02:25:22,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 02:25:22,531 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-8.wvr.c[5274,5287] [2022-12-06 02:25:22,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 02:25:22,546 INFO L208 MainTranslator]: Completed translation [2022-12-06 02:25:22,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22 WrapperNode [2022-12-06 02:25:22,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 02:25:22,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 02:25:22,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 02:25:22,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 02:25:22,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,602 INFO L138 Inliner]: procedures = 27, calls = 130, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 358 [2022-12-06 02:25:22,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 02:25:22,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 02:25:22,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 02:25:22,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 02:25:22,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 02:25:22,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 02:25:22,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 02:25:22,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 02:25:22,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (1/1) ... [2022-12-06 02:25:22,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 02:25:22,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 02:25:22,686 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 02:25:22,694 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 02:25:22,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 02:25:22,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 02:25:22,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 02:25:22,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-06 02:25:22,716 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-12-06 02:25:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-12-06 02:25:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2022-12-06 02:25:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2022-12-06 02:25:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 02:25:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 02:25:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 02:25:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 02:25:22,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 02:25:22,718 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 02:25:22,835 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 02:25:22,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 02:25:23,206 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 02:25:23,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 02:25:23,299 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 02:25:23,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:25:23 BoogieIcfgContainer [2022-12-06 02:25:23,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 02:25:23,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 02:25:23,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 02:25:23,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 02:25:23,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 02:25:22" (1/3) ... [2022-12-06 02:25:23,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a699202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:25:23, skipping insertion in model container [2022-12-06 02:25:23,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:25:22" (2/3) ... [2022-12-06 02:25:23,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a699202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 02:25:23, skipping insertion in model container [2022-12-06 02:25:23,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:25:23" (3/3) ... [2022-12-06 02:25:23,307 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2022-12-06 02:25:23,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 02:25:23,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 02:25:23,321 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 02:25:23,397 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-06 02:25:23,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 227 transitions, 518 flow [2022-12-06 02:25:23,521 INFO L130 PetriNetUnfolder]: 2/219 cut-off events. [2022-12-06 02:25:23,521 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 02:25:23,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 219 events. 2/219 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 103 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-06 02:25:23,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 227 transitions, 518 flow [2022-12-06 02:25:23,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 199 transitions, 446 flow [2022-12-06 02:25:23,534 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:25:23,551 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-06 02:25:23,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 199 transitions, 446 flow [2022-12-06 02:25:23,598 INFO L130 PetriNetUnfolder]: 2/199 cut-off events. [2022-12-06 02:25:23,598 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 02:25:23,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 199 events. 2/199 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2022-12-06 02:25:23,606 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 222 places, 199 transitions, 446 flow [2022-12-06 02:25:23,606 INFO L188 LiptonReduction]: Number of co-enabled transitions 5502 [2022-12-06 02:25:39,701 INFO L203 LiptonReduction]: Total number of compositions: 149 [2022-12-06 02:25:39,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 02:25:39,736 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;@2b28fd95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 02:25:39,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-06 02:25:39,751 INFO L130 PetriNetUnfolder]: 0/49 cut-off events. [2022-12-06 02:25:39,751 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 02:25:39,752 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:25:39,752 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, 1, 1, 1, 1, 1, 1] [2022-12-06 02:25:39,753 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 6 more)] === [2022-12-06 02:25:39,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:25:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 137922621, now seen corresponding path program 1 times [2022-12-06 02:25:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:25:39,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977411831] [2022-12-06 02:25:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:25:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:25:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:25:41,954 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 02:25:41,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:25:41,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977411831] [2022-12-06 02:25:41,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977411831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:25:41,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:25:41,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-06 02:25:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91708710] [2022-12-06 02:25:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:25:41,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-06 02:25:41,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:25:41,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-06 02:25:41,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-06 02:25:41,984 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-06 02:25:41,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 148 flow. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 02:25:41,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:25:41,985 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-06 02:25:41,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:26:01,129 INFO L130 PetriNetUnfolder]: 232377/283581 cut-off events. [2022-12-06 02:26:01,129 INFO L131 PetriNetUnfolder]: For 19884/19884 co-relation queries the response was YES. [2022-12-06 02:26:02,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586214 conditions, 283581 events. 232377/283581 cut-off events. For 19884/19884 co-relation queries the response was YES. Maximal size of possible extension queue 5667. Compared 1404325 event pairs, 65501 based on Foata normal form. 1/283582 useless extension candidates. Maximal degree in co-relation 462248. Up to 136160 conditions per place. [2022-12-06 02:26:02,888 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 118 selfloop transitions, 17 changer transitions 16/151 dead transitions. [2022-12-06 02:26:02,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 151 transitions, 733 flow [2022-12-06 02:26:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 02:26:02,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 02:26:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 152 transitions. [2022-12-06 02:26:02,897 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.608 [2022-12-06 02:26:02,899 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, 4 predicate places. [2022-12-06 02:26:02,901 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:26:02,901 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 151 transitions, 733 flow [2022-12-06 02:26:04,478 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 151 transitions, 733 flow [2022-12-06 02:26:04,478 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:26:04,556 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:26:04,557 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1658 [2022-12-06 02:26:04,557 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 151 transitions, 733 flow [2022-12-06 02:26:04,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 02:26:04,558 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:26:04,558 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, 1, 1, 1, 1, 1, 1] [2022-12-06 02:26:04,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 02:26:04,558 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 6 more)] === [2022-12-06 02:26:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:26:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1276697227, now seen corresponding path program 2 times [2022-12-06 02:26:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:26:04,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889106014] [2022-12-06 02:26:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:26:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:26:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:26:05,619 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 02:26:05,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:26:05,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889106014] [2022-12-06 02:26:05,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889106014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:26:05,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:26:05,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 02:26:05,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684996062] [2022-12-06 02:26:05,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:26:05,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 02:26:05,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:26:05,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 02:26:05,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-06 02:26:05,629 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-06 02:26:05,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 151 transitions, 733 flow. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 02:26:05,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:26:05,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-06 02:26:05,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:26:28,079 INFO L130 PetriNetUnfolder]: 282314/345871 cut-off events. [2022-12-06 02:26:28,080 INFO L131 PetriNetUnfolder]: For 28589/28589 co-relation queries the response was YES. [2022-12-06 02:26:29,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061750 conditions, 345871 events. 282314/345871 cut-off events. For 28589/28589 co-relation queries the response was YES. Maximal size of possible extension queue 6928. Compared 1774738 event pairs, 61351 based on Foata normal form. 1/345872 useless extension candidates. Maximal degree in co-relation 846287. Up to 200884 conditions per place. [2022-12-06 02:26:30,065 INFO L137 encePairwiseOnDemand]: 39/50 looper letters, 138 selfloop transitions, 24 changer transitions 90/252 dead transitions. [2022-12-06 02:26:30,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 252 transitions, 1725 flow [2022-12-06 02:26:30,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 02:26:30,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 02:26:30,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 182 transitions. [2022-12-06 02:26:30,068 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6066666666666667 [2022-12-06 02:26:30,069 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2022-12-06 02:26:30,070 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:26:30,070 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 252 transitions, 1725 flow [2022-12-06 02:26:31,948 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 252 transitions, 1725 flow [2022-12-06 02:26:31,949 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:26:32,043 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:26:32,045 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1976 [2022-12-06 02:26:32,045 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 252 transitions, 1725 flow [2022-12-06 02:26:32,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 02:26:32,046 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:26:32,049 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, 1, 1, 1, 1, 1, 1] [2022-12-06 02:26:32,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 02:26:32,063 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 6 more)] === [2022-12-06 02:26:32,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:26:32,064 INFO L85 PathProgramCache]: Analyzing trace with hash 973242753, now seen corresponding path program 3 times [2022-12-06 02:26:32,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:26:32,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966508460] [2022-12-06 02:26:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:26:32,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:26:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:26:32,375 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 02:26:32,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:26:32,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966508460] [2022-12-06 02:26:32,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966508460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:26:32,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:26:32,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 02:26:32,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974336798] [2022-12-06 02:26:32,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:26:32,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 02:26:32,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:26:32,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 02:26:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 02:26:32,381 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-06 02:26:32,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 252 transitions, 1725 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 02:26:32,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:26:32,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-06 02:26:32,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:26:59,173 INFO L130 PetriNetUnfolder]: 288580/353125 cut-off events. [2022-12-06 02:26:59,174 INFO L131 PetriNetUnfolder]: For 29107/29107 co-relation queries the response was YES. [2022-12-06 02:27:00,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1437118 conditions, 353125 events. 288580/353125 cut-off events. For 29107/29107 co-relation queries the response was YES. Maximal size of possible extension queue 6982. Compared 1810986 event pairs, 57540 based on Foata normal form. 508/353633 useless extension candidates. Maximal degree in co-relation 1427158. Up to 348743 conditions per place. [2022-12-06 02:27:01,749 INFO L137 encePairwiseOnDemand]: 33/50 looper letters, 254 selfloop transitions, 35 changer transitions 92/381 dead transitions. [2022-12-06 02:27:01,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 381 transitions, 3354 flow [2022-12-06 02:27:01,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 02:27:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 02:27:01,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2022-12-06 02:27:01,767 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.524 [2022-12-06 02:27:01,768 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2022-12-06 02:27:01,770 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:27:01,770 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 381 transitions, 3354 flow [2022-12-06 02:27:04,364 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 381 transitions, 3354 flow [2022-12-06 02:27:04,364 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:27:04,461 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:27:04,463 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2694 [2022-12-06 02:27:04,463 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 381 transitions, 3354 flow [2022-12-06 02:27:04,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 02:27:04,463 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:27:04,463 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, 1, 1, 1, 1, 1, 1] [2022-12-06 02:27:04,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 02:27:04,463 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 6 more)] === [2022-12-06 02:27:04,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:27:04,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1372052613, now seen corresponding path program 4 times [2022-12-06 02:27:04,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:27:04,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137402876] [2022-12-06 02:27:04,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:27:04,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:27:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:27:04,795 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 02:27:04,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:27:04,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137402876] [2022-12-06 02:27:04,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137402876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:27:04,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:27:04,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 02:27:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640632754] [2022-12-06 02:27:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:27:04,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 02:27:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:27:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 02:27:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 02:27:04,798 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-06 02:27:04,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 381 transitions, 3354 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 02:27:04,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:27:04,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-06 02:27:04,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:27:37,989 INFO L130 PetriNetUnfolder]: 288076/352621 cut-off events. [2022-12-06 02:27:37,989 INFO L131 PetriNetUnfolder]: For 29107/29107 co-relation queries the response was YES. [2022-12-06 02:27:39,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1787724 conditions, 352621 events. 288076/352621 cut-off events. For 29107/29107 co-relation queries the response was YES. Maximal size of possible extension queue 7023. Compared 1818946 event pairs, 56386 based on Foata normal form. 504/353125 useless extension candidates. Maximal degree in co-relation 1775555. Up to 348239 conditions per place. [2022-12-06 02:27:40,586 INFO L137 encePairwiseOnDemand]: 34/50 looper letters, 320 selfloop transitions, 53 changer transitions 94/467 dead transitions. [2022-12-06 02:27:40,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 467 transitions, 5036 flow [2022-12-06 02:27:40,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 02:27:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 02:27:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2022-12-06 02:27:40,588 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.508 [2022-12-06 02:27:40,588 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, 17 predicate places. [2022-12-06 02:27:40,589 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:27:40,589 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 467 transitions, 5036 flow [2022-12-06 02:27:43,082 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 467 transitions, 5036 flow [2022-12-06 02:27:43,083 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 02:27:43,200 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 02:27:43,200 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2612 [2022-12-06 02:27:43,201 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 467 transitions, 5036 flow [2022-12-06 02:27:43,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 02:27:43,201 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 02:27:43,201 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, 1, 1, 1, 1, 1, 1] [2022-12-06 02:27:43,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-06 02:27:43,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-12-06 02:27:43,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 02:27:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1396434121, now seen corresponding path program 5 times [2022-12-06 02:27:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 02:27:43,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686037072] [2022-12-06 02:27:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 02:27:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 02:27:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 02:27:43,790 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 02:27:43,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 02:27:43,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686037072] [2022-12-06 02:27:43,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686037072] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 02:27:43,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 02:27:43,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 02:27:43,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653264985] [2022-12-06 02:27:43,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 02:27:43,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 02:27:43,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 02:27:43,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 02:27:43,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 02:27:43,792 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 50 [2022-12-06 02:27:43,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 467 transitions, 5036 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 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 02:27:43,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 02:27:43,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 50 [2022-12-06 02:27:43,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 02:28:18,565 INFO L130 PetriNetUnfolder]: 287580/352125 cut-off events. [2022-12-06 02:28:18,565 INFO L131 PetriNetUnfolder]: For 29107/29107 co-relation queries the response was YES. [2022-12-06 02:28:20,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2137370 conditions, 352125 events. 287580/352125 cut-off events. For 29107/29107 co-relation queries the response was YES. Maximal size of possible extension queue 7038. Compared 1825967 event pairs, 58332 based on Foata normal form. 496/352621 useless extension candidates. Maximal degree in co-relation 2122992. Up to 347743 conditions per place. [2022-12-06 02:28:21,842 INFO L137 encePairwiseOnDemand]: 35/50 looper letters, 432 selfloop transitions, 81 changer transitions 98/611 dead transitions. [2022-12-06 02:28:21,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 611 transitions, 7794 flow [2022-12-06 02:28:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 02:28:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 02:28:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 123 transitions. [2022-12-06 02:28:21,844 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.492 [2022-12-06 02:28:21,846 INFO L294 CegarLoopForPetriNet]: 75 programPoint places, 21 predicate places. [2022-12-06 02:28:21,848 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 02:28:21,848 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 611 transitions, 7794 flow