/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 18:40:19,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:40:19,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:40:19,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:40:19,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:40:19,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:40:19,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:40:19,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:40:19,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:40:19,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:40:19,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:40:19,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:40:19,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:40:19,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:40:19,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:40:19,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:40:19,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:40:19,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:40:19,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:40:19,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:40:19,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:40:19,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:40:19,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:40:19,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:40:19,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:40:19,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:40:19,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:40:19,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:40:19,573 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:40:19,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 18:40:19,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 18:40:19,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 18:40:19,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 18:40:19,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 18:40:19,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 18:40:19,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 18:40:19,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 18:40:19,580 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 18:40:19,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:40:19,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:40:19,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:40:19,584 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-NoLbe.epf [2022-12-05 18:40:19,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:40:19,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:40:19,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:40:19,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:40:19,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:40:19,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:40:19,612 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:40:19,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:40:19,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:40:19,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:40:19,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:40:19,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:40:19,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:40:19,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:40:19,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:40:19,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:40:19,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:40:19,615 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:40:19,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:40:19,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:40:19,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:40:19,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:40:19,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:40:19,967 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:40:19,967 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:40:19,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:21,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:40:21,266 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:40:21,267 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:21,285 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35e5f95c3/19fbb5f036d7490bb2b8a02cc3a017c9/FLAGc27992fa0 [2022-12-05 18:40:21,295 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35e5f95c3/19fbb5f036d7490bb2b8a02cc3a017c9 [2022-12-05 18:40:21,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:40:21,298 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:40:21,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:21,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:40:21,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:40:21,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155a0804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21, skipping insertion in model container [2022-12-05 18:40:21,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:40:21,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:40:21,448 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:21,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,619 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,620 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,622 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,623 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,638 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:21,652 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:40:21,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-12-05 18:40:21,690 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,691 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,700 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,701 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,702 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,703 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,704 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,705 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,707 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,713 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,714 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,715 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 18:40:21,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 18:40:21,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:40:21,764 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:40:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21 WrapperNode [2022-12-05 18:40:21,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:40:21,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:21,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:40:21,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:40:21,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,826 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-12-05 18:40:21,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:40:21,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:40:21,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:40:21,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:40:21,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,861 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:40:21,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:40:21,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:40:21,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:40:21,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (1/1) ... [2022-12-05 18:40:21,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:40:21,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:40:21,917 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) [2022-12-05 18:40:21,927 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 [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:40:21,954 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-05 18:40:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-05 18:40:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-05 18:40:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-05 18:40:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-05 18:40:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-05 18:40:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:40:21,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 18:40:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:40:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:40:21,957 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:40:22,056 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:40:22,058 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:40:22,287 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:40:22,292 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:40:22,292 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 18:40:22,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:22 BoogieIcfgContainer [2022-12-05 18:40:22,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:40:22,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:40:22,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:40:22,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:40:22,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:40:21" (1/3) ... [2022-12-05 18:40:22,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b721ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:22, skipping insertion in model container [2022-12-05 18:40:22,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:40:21" (2/3) ... [2022-12-05 18:40:22,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b721ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:40:22, skipping insertion in model container [2022-12-05 18:40:22,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:40:22" (3/3) ... [2022-12-05 18:40:22,300 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-12-05 18:40:22,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:40:22,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 18:40:22,320 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:40:22,390 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 18:40:22,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 18:40:22,485 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-12-05 18:40:22,486 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:22,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-12-05 18:40:22,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2022-12-05 18:40:22,494 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2022-12-05 18:40:22,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:40:22,512 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19c1a817, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:40:22,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 18:40:22,538 INFO L130 PetriNetUnfolder]: 1/68 cut-off events. [2022-12-05 18:40:22,538 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:40:22,539 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:22,539 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] [2022-12-05 18:40:22,540 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 1 more)] === [2022-12-05 18:40:22,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:22,544 INFO L85 PathProgramCache]: Analyzing trace with hash -989773961, now seen corresponding path program 1 times [2022-12-05 18:40:22,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:22,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045834584] [2022-12-05 18:40:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:22,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:23,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:23,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045834584] [2022-12-05 18:40:23,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045834584] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:23,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:23,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:40:23,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055775730] [2022-12-05 18:40:23,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:23,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:40:23,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:40:23,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:40:23,261 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:23,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2022-12-05 18:40:23,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:23,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:23,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:23,640 INFO L130 PetriNetUnfolder]: 661/1439 cut-off events. [2022-12-05 18:40:23,640 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-05 18:40:23,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 1439 events. 661/1439 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 9223 event pairs, 143 based on Foata normal form. 48/1441 useless extension candidates. Maximal degree in co-relation 2500. Up to 322 conditions per place. [2022-12-05 18:40:23,652 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 24 selfloop transitions, 7 changer transitions 43/123 dead transitions. [2022-12-05 18:40:23,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 123 transitions, 409 flow [2022-12-05 18:40:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:40:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:40:23,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 627 transitions. [2022-12-05 18:40:23,666 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8293650793650794 [2022-12-05 18:40:23,669 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 147 flow. Second operand 9 states and 627 transitions. [2022-12-05 18:40:23,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 123 transitions, 409 flow [2022-12-05 18:40:23,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 123 transitions, 404 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 18:40:23,677 INFO L231 Difference]: Finished difference. Result has 91 places, 74 transitions, 244 flow [2022-12-05 18:40:23,678 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=244, PETRI_PLACES=91, PETRI_TRANSITIONS=74} [2022-12-05 18:40:23,684 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 13 predicate places. [2022-12-05 18:40:23,684 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 74 transitions, 244 flow [2022-12-05 18:40:23,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2022-12-05 18:40:23,685 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:23,685 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, 1] [2022-12-05 18:40:23,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:40:23,686 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 1 more)] === [2022-12-05 18:40:23,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:23,687 INFO L85 PathProgramCache]: Analyzing trace with hash -383671822, now seen corresponding path program 1 times [2022-12-05 18:40:23,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:23,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6839033] [2022-12-05 18:40:23,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:23,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:23,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:23,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6839033] [2022-12-05 18:40:23,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6839033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:23,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:23,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:40:23,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106684508] [2022-12-05 18:40:23,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:23,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:40:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:40:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:40:23,963 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 84 [2022-12-05 18:40:23,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 74 transitions, 244 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-05 18:40:23,964 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:23,964 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 84 [2022-12-05 18:40:23,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:24,177 INFO L130 PetriNetUnfolder]: 373/927 cut-off events. [2022-12-05 18:40:24,178 INFO L131 PetriNetUnfolder]: For 2151/2627 co-relation queries the response was YES. [2022-12-05 18:40:24,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3095 conditions, 927 events. 373/927 cut-off events. For 2151/2627 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5663 event pairs, 40 based on Foata normal form. 63/962 useless extension candidates. Maximal degree in co-relation 3057. Up to 278 conditions per place. [2022-12-05 18:40:24,186 INFO L137 encePairwiseOnDemand]: 78/84 looper letters, 20 selfloop transitions, 3 changer transitions 43/122 dead transitions. [2022-12-05 18:40:24,186 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 122 transitions, 732 flow [2022-12-05 18:40:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:40:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:40:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 638 transitions. [2022-12-05 18:40:24,188 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.843915343915344 [2022-12-05 18:40:24,188 INFO L175 Difference]: Start difference. First operand has 91 places, 74 transitions, 244 flow. Second operand 9 states and 638 transitions. [2022-12-05 18:40:24,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 122 transitions, 732 flow [2022-12-05 18:40:24,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:40:24,199 INFO L231 Difference]: Finished difference. Result has 98 places, 74 transitions, 253 flow [2022-12-05 18:40:24,200 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=253, PETRI_PLACES=98, PETRI_TRANSITIONS=74} [2022-12-05 18:40:24,200 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 20 predicate places. [2022-12-05 18:40:24,201 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 74 transitions, 253 flow [2022-12-05 18:40:24,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 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) [2022-12-05 18:40:24,201 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:24,201 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, 1, 1] [2022-12-05 18:40:24,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:40:24,202 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 1 more)] === [2022-12-05 18:40:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash 229066332, now seen corresponding path program 1 times [2022-12-05 18:40:24,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:24,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760463756] [2022-12-05 18:40:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:24,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760463756] [2022-12-05 18:40:24,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760463756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:24,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:24,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:24,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439683698] [2022-12-05 18:40:24,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:24,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:24,395 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:24,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 74 transitions, 253 flow. Second operand has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-05 18:40:24,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:24,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:24,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:24,597 INFO L130 PetriNetUnfolder]: 284/861 cut-off events. [2022-12-05 18:40:24,598 INFO L131 PetriNetUnfolder]: For 1919/2570 co-relation queries the response was YES. [2022-12-05 18:40:24,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 861 events. 284/861 cut-off events. For 1919/2570 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5550 event pairs, 34 based on Foata normal form. 21/858 useless extension candidates. Maximal degree in co-relation 2581. Up to 188 conditions per place. [2022-12-05 18:40:24,603 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 29 selfloop transitions, 8 changer transitions 52/138 dead transitions. [2022-12-05 18:40:24,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 138 transitions, 891 flow [2022-12-05 18:40:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:24,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 874 transitions. [2022-12-05 18:40:24,606 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8003663003663004 [2022-12-05 18:40:24,606 INFO L175 Difference]: Start difference. First operand has 98 places, 74 transitions, 253 flow. Second operand 13 states and 874 transitions. [2022-12-05 18:40:24,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 138 transitions, 891 flow [2022-12-05 18:40:24,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 138 transitions, 833 flow, removed 24 selfloop flow, removed 8 redundant places. [2022-12-05 18:40:24,612 INFO L231 Difference]: Finished difference. Result has 108 places, 78 transitions, 330 flow [2022-12-05 18:40:24,612 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=330, PETRI_PLACES=108, PETRI_TRANSITIONS=78} [2022-12-05 18:40:24,613 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 30 predicate places. [2022-12-05 18:40:24,613 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 78 transitions, 330 flow [2022-12-05 18:40:24,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-05 18:40:24,613 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:24,613 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, 1, 1, 1] [2022-12-05 18:40:24,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:40:24,614 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 1 more)] === [2022-12-05 18:40:24,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:24,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1962061049, now seen corresponding path program 1 times [2022-12-05 18:40:24,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:24,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649498928] [2022-12-05 18:40:24,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:24,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:24,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:24,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649498928] [2022-12-05 18:40:24,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649498928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:24,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:24,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:24,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982464351] [2022-12-05 18:40:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:24,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:24,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:24,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:24,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:24,720 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:24,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 78 transitions, 330 flow. Second operand has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-05 18:40:24,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:24,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:24,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:24,928 INFO L130 PetriNetUnfolder]: 193/686 cut-off events. [2022-12-05 18:40:24,928 INFO L131 PetriNetUnfolder]: For 2405/2804 co-relation queries the response was YES. [2022-12-05 18:40:24,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2379 conditions, 686 events. 193/686 cut-off events. For 2405/2804 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4218 event pairs, 3 based on Foata normal form. 27/698 useless extension candidates. Maximal degree in co-relation 2325. Up to 139 conditions per place. [2022-12-05 18:40:24,932 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 33 selfloop transitions, 13 changer transitions 52/147 dead transitions. [2022-12-05 18:40:24,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 147 transitions, 1140 flow [2022-12-05 18:40:24,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:24,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 871 transitions. [2022-12-05 18:40:24,934 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2022-12-05 18:40:24,934 INFO L175 Difference]: Start difference. First operand has 108 places, 78 transitions, 330 flow. Second operand 13 states and 871 transitions. [2022-12-05 18:40:24,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 147 transitions, 1140 flow [2022-12-05 18:40:24,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 147 transitions, 1063 flow, removed 36 selfloop flow, removed 4 redundant places. [2022-12-05 18:40:24,940 INFO L231 Difference]: Finished difference. Result has 119 places, 84 transitions, 466 flow [2022-12-05 18:40:24,941 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=466, PETRI_PLACES=119, PETRI_TRANSITIONS=84} [2022-12-05 18:40:24,941 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 41 predicate places. [2022-12-05 18:40:24,941 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 84 transitions, 466 flow [2022-12-05 18:40:24,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.142857142857146) internal successors, (442), 7 states have internal predecessors, (442), 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) [2022-12-05 18:40:24,942 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:24,942 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, 1, 1, 1, 1] [2022-12-05 18:40:24,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:40:24,942 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 1 more)] === [2022-12-05 18:40:24,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:24,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1239146811, now seen corresponding path program 1 times [2022-12-05 18:40:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:24,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463277821] [2022-12-05 18:40:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:25,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463277821] [2022-12-05 18:40:25,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463277821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:25,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:25,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:25,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798038872] [2022-12-05 18:40:25,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:25,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:25,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:25,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:25,075 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:25,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 84 transitions, 466 flow. Second operand has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 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) [2022-12-05 18:40:25,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:25,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:25,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:25,244 INFO L130 PetriNetUnfolder]: 111/434 cut-off events. [2022-12-05 18:40:25,244 INFO L131 PetriNetUnfolder]: For 1959/2669 co-relation queries the response was YES. [2022-12-05 18:40:25,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 434 events. 111/434 cut-off events. For 1959/2669 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2266 event pairs, 2 based on Foata normal form. 8/430 useless extension candidates. Maximal degree in co-relation 1706. Up to 102 conditions per place. [2022-12-05 18:40:25,248 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 33 selfloop transitions, 23 changer transitions 31/136 dead transitions. [2022-12-05 18:40:25,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 136 transitions, 1183 flow [2022-12-05 18:40:25,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 865 transitions. [2022-12-05 18:40:25,250 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7921245421245421 [2022-12-05 18:40:25,250 INFO L175 Difference]: Start difference. First operand has 119 places, 84 transitions, 466 flow. Second operand 13 states and 865 transitions. [2022-12-05 18:40:25,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 136 transitions, 1183 flow [2022-12-05 18:40:25,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 136 transitions, 1064 flow, removed 54 selfloop flow, removed 10 redundant places. [2022-12-05 18:40:25,258 INFO L231 Difference]: Finished difference. Result has 124 places, 94 transitions, 660 flow [2022-12-05 18:40:25,258 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=660, PETRI_PLACES=124, PETRI_TRANSITIONS=94} [2022-12-05 18:40:25,259 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 46 predicate places. [2022-12-05 18:40:25,259 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 94 transitions, 660 flow [2022-12-05 18:40:25,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 63.285714285714285) internal successors, (443), 7 states have internal predecessors, (443), 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) [2022-12-05 18:40:25,259 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:25,260 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, 1, 1, 1, 1, 1] [2022-12-05 18:40:25,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:40:25,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 18:40:25,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1374452159, now seen corresponding path program 1 times [2022-12-05 18:40:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:25,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692936791] [2022-12-05 18:40:25,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:25,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:25,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692936791] [2022-12-05 18:40:25,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692936791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:25,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:25,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:25,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130071956] [2022-12-05 18:40:25,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:25,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:25,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:25,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:25,371 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:25,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 94 transitions, 660 flow. Second operand has 8 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 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) [2022-12-05 18:40:25,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:25,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:25,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:25,503 INFO L130 PetriNetUnfolder]: 116/492 cut-off events. [2022-12-05 18:40:25,503 INFO L131 PetriNetUnfolder]: For 3313/4213 co-relation queries the response was YES. [2022-12-05 18:40:25,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2199 conditions, 492 events. 116/492 cut-off events. For 3313/4213 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2757 event pairs, 2 based on Foata normal form. 26/503 useless extension candidates. Maximal degree in co-relation 2128. Up to 114 conditions per place. [2022-12-05 18:40:25,507 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 33 selfloop transitions, 18 changer transitions 39/139 dead transitions. [2022-12-05 18:40:25,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 139 transitions, 1421 flow [2022-12-05 18:40:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:40:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:40:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 605 transitions. [2022-12-05 18:40:25,509 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8002645502645502 [2022-12-05 18:40:25,509 INFO L175 Difference]: Start difference. First operand has 124 places, 94 transitions, 660 flow. Second operand 9 states and 605 transitions. [2022-12-05 18:40:25,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 139 transitions, 1421 flow [2022-12-05 18:40:25,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 139 transitions, 1295 flow, removed 63 selfloop flow, removed 15 redundant places. [2022-12-05 18:40:25,518 INFO L231 Difference]: Finished difference. Result has 113 places, 91 transitions, 623 flow [2022-12-05 18:40:25,518 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=623, PETRI_PLACES=113, PETRI_TRANSITIONS=91} [2022-12-05 18:40:25,519 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 35 predicate places. [2022-12-05 18:40:25,519 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 91 transitions, 623 flow [2022-12-05 18:40:25,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 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) [2022-12-05 18:40:25,520 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:25,520 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, 1, 1, 1, 1, 1] [2022-12-05 18:40:25,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:40:25,520 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 18:40:25,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:25,520 INFO L85 PathProgramCache]: Analyzing trace with hash 428346385, now seen corresponding path program 2 times [2022-12-05 18:40:25,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:25,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204180713] [2022-12-05 18:40:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:25,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:25,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:25,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:25,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204180713] [2022-12-05 18:40:25,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204180713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:25,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:25,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195664744] [2022-12-05 18:40:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:25,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:25,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:25,638 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 84 [2022-12-05 18:40:25,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 91 transitions, 623 flow. Second operand has 8 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 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) [2022-12-05 18:40:25,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:25,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 84 [2022-12-05 18:40:25,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:25,735 INFO L130 PetriNetUnfolder]: 99/408 cut-off events. [2022-12-05 18:40:25,735 INFO L131 PetriNetUnfolder]: For 2734/3749 co-relation queries the response was YES. [2022-12-05 18:40:25,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 408 events. 99/408 cut-off events. For 2734/3749 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2095 event pairs, 4 based on Foata normal form. 10/401 useless extension candidates. Maximal degree in co-relation 1800. Up to 107 conditions per place. [2022-12-05 18:40:25,738 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 29 selfloop transitions, 10 changer transitions 44/132 dead transitions. [2022-12-05 18:40:25,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 132 transitions, 1325 flow [2022-12-05 18:40:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:40:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:40:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 536 transitions. [2022-12-05 18:40:25,740 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.7976190476190477 [2022-12-05 18:40:25,740 INFO L175 Difference]: Start difference. First operand has 113 places, 91 transitions, 623 flow. Second operand 8 states and 536 transitions. [2022-12-05 18:40:25,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 132 transitions, 1325 flow [2022-12-05 18:40:25,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 1231 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-12-05 18:40:25,747 INFO L231 Difference]: Finished difference. Result has 112 places, 80 transitions, 450 flow [2022-12-05 18:40:25,748 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=450, PETRI_PLACES=112, PETRI_TRANSITIONS=80} [2022-12-05 18:40:25,748 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 34 predicate places. [2022-12-05 18:40:25,748 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 80 transitions, 450 flow [2022-12-05 18:40:25,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 63.125) internal successors, (505), 8 states have internal predecessors, (505), 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) [2022-12-05 18:40:25,749 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:25,749 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, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:25,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:40:25,749 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 18:40:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1599068426, now seen corresponding path program 1 times [2022-12-05 18:40:25,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:25,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287327727] [2022-12-05 18:40:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:25,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:25,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:25,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287327727] [2022-12-05 18:40:25,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287327727] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:25,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:25,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-05 18:40:25,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044119399] [2022-12-05 18:40:25,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:25,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-05 18:40:25,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-05 18:40:25,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-05 18:40:25,857 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-05 18:40:25,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 80 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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) [2022-12-05 18:40:25,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:25,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-05 18:40:25,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:25,981 INFO L130 PetriNetUnfolder]: 263/784 cut-off events. [2022-12-05 18:40:25,981 INFO L131 PetriNetUnfolder]: For 1157/1286 co-relation queries the response was YES. [2022-12-05 18:40:25,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 784 events. 263/784 cut-off events. For 1157/1286 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 5395 event pairs, 28 based on Foata normal form. 13/719 useless extension candidates. Maximal degree in co-relation 1782. Up to 185 conditions per place. [2022-12-05 18:40:25,988 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 29 selfloop transitions, 17 changer transitions 0/112 dead transitions. [2022-12-05 18:40:25,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 112 transitions, 610 flow [2022-12-05 18:40:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-05 18:40:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-05 18:40:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2022-12-05 18:40:25,990 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8547619047619047 [2022-12-05 18:40:25,990 INFO L175 Difference]: Start difference. First operand has 112 places, 80 transitions, 450 flow. Second operand 10 states and 718 transitions. [2022-12-05 18:40:25,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 112 transitions, 610 flow [2022-12-05 18:40:25,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 112 transitions, 544 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-12-05 18:40:25,994 INFO L231 Difference]: Finished difference. Result has 114 places, 95 transitions, 504 flow [2022-12-05 18:40:25,994 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=504, PETRI_PLACES=114, PETRI_TRANSITIONS=95} [2022-12-05 18:40:25,995 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 36 predicate places. [2022-12-05 18:40:25,995 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 95 transitions, 504 flow [2022-12-05 18:40:25,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.66666666666667) internal successors, (412), 6 states have internal predecessors, (412), 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) [2022-12-05 18:40:25,995 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:25,995 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:25,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:40:25,996 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 18:40:25,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:25,996 INFO L85 PathProgramCache]: Analyzing trace with hash -782694025, now seen corresponding path program 1 times [2022-12-05 18:40:25,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:25,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610988489] [2022-12-05 18:40:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:25,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:26,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:26,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610988489] [2022-12-05 18:40:26,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610988489] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:26,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:26,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-05 18:40:26,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425468657] [2022-12-05 18:40:26,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:26,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-05 18:40:26,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:26,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-05 18:40:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-05 18:40:26,095 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-05 18:40:26,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 95 transitions, 504 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-12-05 18:40:26,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:26,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-05 18:40:26,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:26,251 INFO L130 PetriNetUnfolder]: 243/752 cut-off events. [2022-12-05 18:40:26,252 INFO L131 PetriNetUnfolder]: For 1849/2063 co-relation queries the response was YES. [2022-12-05 18:40:26,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 752 events. 243/752 cut-off events. For 1849/2063 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 5432 event pairs, 0 based on Foata normal form. 61/764 useless extension candidates. Maximal degree in co-relation 2491. Up to 238 conditions per place. [2022-12-05 18:40:26,258 INFO L137 encePairwiseOnDemand]: 74/84 looper letters, 22 selfloop transitions, 32 changer transitions 13/133 dead transitions. [2022-12-05 18:40:26,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 133 transitions, 874 flow [2022-12-05 18:40:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-05 18:40:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-05 18:40:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 934 transitions. [2022-12-05 18:40:26,260 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8553113553113553 [2022-12-05 18:40:26,260 INFO L175 Difference]: Start difference. First operand has 114 places, 95 transitions, 504 flow. Second operand 13 states and 934 transitions. [2022-12-05 18:40:26,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 133 transitions, 874 flow [2022-12-05 18:40:26,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 133 transitions, 854 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-12-05 18:40:26,266 INFO L231 Difference]: Finished difference. Result has 126 places, 111 transitions, 687 flow [2022-12-05 18:40:26,266 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=687, PETRI_PLACES=126, PETRI_TRANSITIONS=111} [2022-12-05 18:40:26,266 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 48 predicate places. [2022-12-05 18:40:26,266 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 111 transitions, 687 flow [2022-12-05 18:40:26,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-12-05 18:40:26,267 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:40:26,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:26,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:40:26,267 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-05 18:40:26,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:40:26,268 INFO L85 PathProgramCache]: Analyzing trace with hash -391570166, now seen corresponding path program 1 times [2022-12-05 18:40:26,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:40:26,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871105906] [2022-12-05 18:40:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:40:26,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:40:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:40:26,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:40:26,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:40:26,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871105906] [2022-12-05 18:40:26,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871105906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:40:26,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:40:26,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-05 18:40:26,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430587346] [2022-12-05 18:40:26,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:40:26,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-05 18:40:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:40:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-05 18:40:26,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-05 18:40:26,381 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 84 [2022-12-05 18:40:26,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 111 transitions, 687 flow. Second operand has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2022-12-05 18:40:26,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:40:26,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 84 [2022-12-05 18:40:26,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:40:26,560 INFO L130 PetriNetUnfolder]: 195/602 cut-off events. [2022-12-05 18:40:26,560 INFO L131 PetriNetUnfolder]: For 2332/2715 co-relation queries the response was YES. [2022-12-05 18:40:26,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 602 events. 195/602 cut-off events. For 2332/2715 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4326 event pairs, 0 based on Foata normal form. 65/617 useless extension candidates. Maximal degree in co-relation 2421. Up to 192 conditions per place. [2022-12-05 18:40:26,565 INFO L137 encePairwiseOnDemand]: 76/84 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2022-12-05 18:40:26,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 119 transitions, 870 flow [2022-12-05 18:40:26,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-05 18:40:26,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-05 18:40:26,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1058 transitions. [2022-12-05 18:40:26,567 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8396825396825397 [2022-12-05 18:40:26,567 INFO L175 Difference]: Start difference. First operand has 126 places, 111 transitions, 687 flow. Second operand 15 states and 1058 transitions. [2022-12-05 18:40:26,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 119 transitions, 870 flow [2022-12-05 18:40:26,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 119 transitions, 709 flow, removed 55 selfloop flow, removed 14 redundant places. [2022-12-05 18:40:26,576 INFO L231 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2022-12-05 18:40:26,576 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2022-12-05 18:40:26,577 INFO L294 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2022-12-05 18:40:26,577 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2022-12-05 18:40:26,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2022-12-05 18:40:26,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 18:40:26,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 18:40:26,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 18:40:26,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-05 18:40:26,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-05 18:40:26,580 INFO L458 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:40:26,582 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:40:26,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:40:26,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:40:26 BasicIcfg [2022-12-05 18:40:26,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:40:26,586 INFO L158 Benchmark]: Toolchain (without parser) took 5288.22ms. Allocated memory was 181.4MB in the beginning and 283.1MB in the end (delta: 101.7MB). Free memory was 157.1MB in the beginning and 191.3MB in the end (delta: -34.2MB). Peak memory consumption was 68.8MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,586 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:40:26,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.67ms. Allocated memory is still 181.4MB. Free memory was 156.8MB in the beginning and 133.2MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.28ms. Allocated memory is still 181.4MB. Free memory was 133.2MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,587 INFO L158 Benchmark]: Boogie Preprocessor took 36.44ms. Allocated memory is still 181.4MB. Free memory was 131.1MB in the beginning and 130.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,587 INFO L158 Benchmark]: RCFGBuilder took 429.07ms. Allocated memory is still 181.4MB. Free memory was 130.0MB in the beginning and 115.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,587 INFO L158 Benchmark]: TraceAbstraction took 4290.21ms. Allocated memory was 181.4MB in the beginning and 283.1MB in the end (delta: 101.7MB). Free memory was 114.8MB in the beginning and 191.3MB in the end (delta: -76.5MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2022-12-05 18:40:26,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 466.67ms. Allocated memory is still 181.4MB. Free memory was 156.8MB in the beginning and 133.2MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.28ms. Allocated memory is still 181.4MB. Free memory was 133.2MB in the beginning and 131.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.44ms. Allocated memory is still 181.4MB. Free memory was 131.1MB in the beginning and 130.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 429.07ms. Allocated memory is still 181.4MB. Free memory was 130.0MB in the beginning and 115.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4290.21ms. Allocated memory was 181.4MB in the beginning and 283.1MB in the end (delta: 101.7MB). Free memory was 114.8MB in the beginning and 191.3MB in the end (delta: -76.5MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 504 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 504 mSDsluCounter, 757 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 570 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 713 IncrementalHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 187 mSDtfsCounter, 713 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=687occurred in iteration=9, InterpolantAutomatonStates: 112, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 541 NumberOfCodeBlocks, 541 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 531 ConstructedInterpolants, 0 QuantifiedInterpolants, 2505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-05 18:40:26,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...